]> Git Repo - linux.git/commitdiff
Merge tag 'ceph-for-6.7-rc1' of https://github.com/ceph/ceph-client
authorLinus Torvalds <[email protected]>
Fri, 10 Nov 2023 17:52:56 +0000 (09:52 -0800)
committerLinus Torvalds <[email protected]>
Fri, 10 Nov 2023 17:52:56 +0000 (09:52 -0800)
Pull ceph updates from Ilya Dryomov:

 - support for idmapped mounts in CephFS (Christian Brauner, Alexander
   Mikhalitsyn).

   The series was originally developed by Christian and later picked up
   and brought over the finish line by Alexander, who also contributed
   an enabler on the MDS side (separate owner_{u,g}id fields on the
   wire).

   The required exports for mnt_idmap_{get,put}() in VFS have been acked
   by Christian and received no objection from Christoph.

 - a churny change in CephFS logging to include cluster and client
   identifiers in log and debug messages (Xiubo Li).

   This would help in scenarios with dozens of CephFS mounts on the same
   node which are getting increasingly common, especially in the
   Kubernetes world.

* tag 'ceph-for-6.7-rc1' of https://github.com/ceph/ceph-client:
  ceph: allow idmapped mounts
  ceph: allow idmapped atomic_open inode op
  ceph: allow idmapped set_acl inode op
  ceph: allow idmapped setattr inode op
  ceph: pass idmap to __ceph_setattr
  ceph: allow idmapped permission inode op
  ceph: allow idmapped getattr inode op
  ceph: pass an idmapping to mknod/symlink/mkdir
  ceph: add enable_unsafe_idmap module parameter
  ceph: handle idmapped mounts in create_request_message()
  ceph: stash idmapping in mdsc request
  fs: export mnt_idmap_get/mnt_idmap_put
  libceph, ceph: move mdsmap.h to fs/ceph
  ceph: print cluster fsid and client global_id in all debug logs
  ceph: rename _to_client() to _to_fs_client()
  ceph: pass the mdsc to several helpers
  libceph: add doutc and *_client debug macros support

1  2 
fs/ceph/addr.c
fs/ceph/caps.c
fs/ceph/crypto.c
fs/ceph/file.c
fs/ceph/inode.c
fs/ceph/mds_client.c
fs/ceph/snap.c
fs/ceph/super.h
fs/ceph/xattr.c

diff --combined fs/ceph/addr.c
index 936b9e0b351df72974b2567e59a6a6cac9a8bada,63cb78fabebfd57db6ce0a6ff3eaeee7c0b80c4d..85be3bf18cdf38834de3141dfe0d6d75393c6d94
@@@ -79,18 -79,18 +79,18 @@@ static inline struct ceph_snap_context 
   */
  static bool ceph_dirty_folio(struct address_space *mapping, struct folio *folio)
  {
-       struct inode *inode;
+       struct inode *inode = mapping->host;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci;
        struct ceph_snap_context *snapc;
  
        if (folio_test_dirty(folio)) {
-               dout("%p dirty_folio %p idx %lu -- already dirty\n",
-                    mapping->host, folio, folio->index);
+               doutc(cl, "%llx.%llx %p idx %lu -- already dirty\n",
+                     ceph_vinop(inode), folio, folio->index);
                VM_BUG_ON_FOLIO(!folio_test_private(folio), folio);
                return false;
        }
  
-       inode = mapping->host;
        ci = ceph_inode(inode);
  
        /* dirty the head */
        if (ci->i_wrbuffer_ref == 0)
                ihold(inode);
        ++ci->i_wrbuffer_ref;
-       dout("%p dirty_folio %p idx %lu head %d/%d -> %d/%d "
-            "snapc %p seq %lld (%d snaps)\n",
-            mapping->host, folio, folio->index,
-            ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref_head-1,
-            ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head,
-            snapc, snapc->seq, snapc->num_snaps);
+       doutc(cl, "%llx.%llx %p idx %lu head %d/%d -> %d/%d "
+             "snapc %p seq %lld (%d snaps)\n",
+             ceph_vinop(inode), folio, folio->index,
+             ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref_head-1,
+             ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head,
+             snapc, snapc->seq, snapc->num_snaps);
        spin_unlock(&ci->i_ceph_lock);
  
        /*
  static void ceph_invalidate_folio(struct folio *folio, size_t offset,
                                size_t length)
  {
-       struct inode *inode;
-       struct ceph_inode_info *ci;
+       struct inode *inode = folio->mapping->host;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
+       struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_snap_context *snapc;
  
-       inode = folio->mapping->host;
-       ci = ceph_inode(inode);
  
        if (offset != 0 || length != folio_size(folio)) {
-               dout("%p invalidate_folio idx %lu partial dirty page %zu~%zu\n",
-                    inode, folio->index, offset, length);
+               doutc(cl, "%llx.%llx idx %lu partial dirty page %zu~%zu\n",
+                     ceph_vinop(inode), folio->index, offset, length);
                return;
        }
  
        WARN_ON(!folio_test_locked(folio));
        if (folio_test_private(folio)) {
-               dout("%p invalidate_folio idx %lu full dirty page\n",
-                    inode, folio->index);
+               doutc(cl, "%llx.%llx idx %lu full dirty page\n",
+                     ceph_vinop(inode), folio->index);
  
                snapc = folio_detach_private(folio);
                ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
  static bool ceph_release_folio(struct folio *folio, gfp_t gfp)
  {
        struct inode *inode = folio->mapping->host;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
  
-       dout("%llx:%llx release_folio idx %lu (%sdirty)\n",
-            ceph_vinop(inode),
-            folio->index, folio_test_dirty(folio) ? "" : "not ");
+       doutc(cl, "%llx.%llx idx %lu (%sdirty)\n", ceph_vinop(inode),
+             folio->index, folio_test_dirty(folio) ? "" : "not ");
  
        if (folio_test_private(folio))
                return false;
@@@ -229,7 -228,7 +228,7 @@@ static void ceph_netfs_expand_readahead
  static bool ceph_netfs_clamp_length(struct netfs_io_subrequest *subreq)
  {
        struct inode *inode = subreq->rreq->inode;
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        u64 objno, objoff;
        u32 xlen;
  static void finish_netfs_read(struct ceph_osd_request *req)
  {
        struct inode *inode = req->r_inode;
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_data *osd_data = osd_req_op_extent_osd_data(req, 0);
        struct netfs_io_subrequest *subreq = req->r_priv;
        struct ceph_osd_req_op *op = &req->r_ops[0];
        ceph_update_read_metrics(&fsc->mdsc->metric, req->r_start_latency,
                                 req->r_end_latency, osd_data->length, err);
  
-       dout("%s: result %d subreq->len=%zu i_size=%lld\n", __func__, req->r_result,
-            subreq->len, i_size_read(req->r_inode));
+       doutc(cl, "result %d subreq->len=%zu i_size=%lld\n", req->r_result,
+             subreq->len, i_size_read(req->r_inode));
  
        /* no object means success but no data */
        if (err == -ENOENT)
@@@ -348,7 -348,8 +348,8 @@@ static void ceph_netfs_issue_read(struc
        struct netfs_io_request *rreq = subreq->rreq;
        struct inode *inode = rreq->inode;
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_request *req = NULL;
        struct ceph_vino vino = ceph_vino(inode);
        struct iov_iter iter;
                        goto out;
        }
  
-       dout("%s: pos=%llu orig_len=%zu len=%llu\n", __func__, subreq->start, subreq->len, len);
+       doutc(cl, "%llx.%llx pos=%llu orig_len=%zu len=%llu\n",
+             ceph_vinop(inode), subreq->start, subreq->len, len);
  
        iov_iter_xarray(&iter, ITER_DEST, &rreq->mapping->i_pages, subreq->start, len);
  
  
                err = iov_iter_get_pages_alloc2(&iter, &pages, len, &page_off);
                if (err < 0) {
-                       dout("%s: iov_ter_get_pages_alloc returned %d\n",
-                            __func__, err);
+                       doutc(cl, "%llx.%llx failed to allocate pages, %d\n",
+                             ceph_vinop(inode), err);
                        goto out;
                }
  
@@@ -429,12 -431,13 +431,13 @@@ out
        ceph_osdc_put_request(req);
        if (err)
                netfs_subreq_terminated(subreq, err, false);
-       dout("%s: result %d\n", __func__, err);
+       doutc(cl, "%llx.%llx result %d\n", ceph_vinop(inode), err);
  }
  
  static int ceph_init_request(struct netfs_io_request *rreq, struct file *file)
  {
        struct inode *inode = rreq->inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int got = 0, want = CEPH_CAP_FILE_CACHE;
        struct ceph_netfs_request_data *priv;
        int ret = 0;
         */
        ret = ceph_try_get_caps(inode, CEPH_CAP_FILE_RD, want, true, &got);
        if (ret < 0) {
-               dout("start_read %p, error getting cap\n", inode);
+               doutc(cl, "%llx.%llx, error getting cap\n", ceph_vinop(inode));
                goto out;
        }
  
        if (!(got & want)) {
-               dout("start_read %p, no cache cap\n", inode);
+               doutc(cl, "%llx.%llx, no cache cap\n", ceph_vinop(inode));
                ret = -EACCES;
                goto out;
        }
@@@ -563,13 -566,14 +566,14 @@@ get_oldest_context(struct inode *inode
                   struct ceph_snap_context *page_snapc)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_snap_context *snapc = NULL;
        struct ceph_cap_snap *capsnap = NULL;
  
        spin_lock(&ci->i_ceph_lock);
        list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
-               dout(" cap_snap %p snapc %p has %d dirty pages\n", capsnap,
-                    capsnap->context, capsnap->dirty_pages);
+               doutc(cl, " capsnap %p snapc %p has %d dirty pages\n",
+                     capsnap, capsnap->context, capsnap->dirty_pages);
                if (!capsnap->dirty_pages)
                        continue;
  
        }
        if (!snapc && ci->i_wrbuffer_ref_head) {
                snapc = ceph_get_snap_context(ci->i_head_snapc);
-               dout(" head snapc %p has %d dirty pages\n",
-                    snapc, ci->i_wrbuffer_ref_head);
+               doutc(cl, " head snapc %p has %d dirty pages\n", snapc,
+                     ci->i_wrbuffer_ref_head);
                if (ctl) {
                        ctl->i_size = i_size_read(inode);
                        ctl->truncate_size = ci->i_truncate_size;
@@@ -658,7 -662,8 +662,8 @@@ static int writepage_nounlock(struct pa
        struct folio *folio = page_folio(page);
        struct inode *inode = page->mapping->host;
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_snap_context *snapc, *oldest;
        loff_t page_off = page_offset(page);
        int err;
        bool caching = ceph_is_cache_enabled(inode);
        struct page *bounce_page = NULL;
  
-       dout("writepage %p idx %lu\n", page, page->index);
+       doutc(cl, "%llx.%llx page %p idx %lu\n", ceph_vinop(inode), page,
+             page->index);
  
        if (ceph_inode_is_shutdown(inode))
                return -EIO;
        /* verify this is a writeable snap context */
        snapc = page_snap_context(page);
        if (!snapc) {
-               dout("writepage %p page %p not dirty?\n", inode, page);
+               doutc(cl, "%llx.%llx page %p not dirty?\n", ceph_vinop(inode),
+                     page);
                return 0;
        }
        oldest = get_oldest_context(inode, &ceph_wbc, snapc);
        if (snapc->seq > oldest->seq) {
-               dout("writepage %p page %p snapc %p not writeable - noop\n",
-                    inode, page, snapc);
+               doutc(cl, "%llx.%llx page %p snapc %p not writeable - noop\n",
+                     ceph_vinop(inode), page, snapc);
                /* we should only noop if called by kswapd */
                WARN_ON(!(current->flags & PF_MEMALLOC));
                ceph_put_snap_context(oldest);
  
        /* is this a partial page at end of file? */
        if (page_off >= ceph_wbc.i_size) {
-               dout("folio at %lu beyond eof %llu\n", folio->index,
-                               ceph_wbc.i_size);
+               doutc(cl, "%llx.%llx folio at %lu beyond eof %llu\n",
+                     ceph_vinop(inode), folio->index, ceph_wbc.i_size);
                folio_invalidate(folio, 0, folio_size(folio));
                return 0;
        }
                len = ceph_wbc.i_size - page_off;
  
        wlen = IS_ENCRYPTED(inode) ? round_up(len, CEPH_FSCRYPT_BLOCK_SIZE) : len;
-       dout("writepage %p page %p index %lu on %llu~%llu snapc %p seq %lld\n",
-            inode, page, page->index, page_off, wlen, snapc, snapc->seq);
+       doutc(cl, "%llx.%llx page %p index %lu on %llu~%llu snapc %p seq %lld\n",
+             ceph_vinop(inode), page, page->index, page_off, wlen, snapc,
+             snapc->seq);
  
        if (atomic_long_inc_return(&fsc->writeback_count) >
            CONGESTION_ON_THRESH(fsc->mount_options->congestion_kb))
        osd_req_op_extent_osd_data_pages(req, 0,
                        bounce_page ? &bounce_page : &page, wlen, 0,
                        false, false);
-       dout("writepage %llu~%llu (%llu bytes, %sencrypted)\n",
-            page_off, len, wlen, IS_ENCRYPTED(inode) ? "" : "not ");
+       doutc(cl, "%llx.%llx %llu~%llu (%llu bytes, %sencrypted)\n",
+             ceph_vinop(inode), page_off, len, wlen,
+             IS_ENCRYPTED(inode) ? "" : "not ");
  
 -      req->r_mtime = inode->i_mtime;
 +      req->r_mtime = inode_get_mtime(inode);
        ceph_osdc_start_request(osdc, req);
        err = ceph_osdc_wait_request(osdc, req);
  
                        wbc = &tmp_wbc;
                if (err == -ERESTARTSYS) {
                        /* killed by SIGKILL */
-                       dout("writepage interrupted page %p\n", page);
+                       doutc(cl, "%llx.%llx interrupted page %p\n",
+                             ceph_vinop(inode), page);
                        redirty_page_for_writepage(wbc, page);
                        end_page_writeback(page);
                        return err;
                }
                if (err == -EBLOCKLISTED)
                        fsc->blocklisted = true;
-               dout("writepage setting page/mapping error %d %p\n",
-                    err, page);
+               doutc(cl, "%llx.%llx setting page/mapping error %d %p\n",
+                     ceph_vinop(inode), err, page);
                mapping_set_error(&inode->i_data, err);
                wbc->pages_skipped++;
        } else {
-               dout("writepage cleaned page %p\n", page);
+               doutc(cl, "%llx.%llx cleaned page %p\n",
+                     ceph_vinop(inode), page);
                err = 0;  /* vfs expects us to return 0 */
        }
        oldest = detach_page_private(page);
@@@ -803,7 -814,7 +814,7 @@@ static int ceph_writepage(struct page *
        ihold(inode);
  
        if (wbc->sync_mode == WB_SYNC_NONE &&
-           ceph_inode_to_client(inode)->write_congested)
+           ceph_inode_to_fs_client(inode)->write_congested)
                return AOP_WRITEPAGE_ACTIVATE;
  
        wait_on_page_fscache(page);
@@@ -829,6 -840,7 +840,7 @@@ static void writepages_finish(struct ce
  {
        struct inode *inode = req->r_inode;
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_osd_data *osd_data;
        struct page *page;
        int num_pages, total_pages = 0;
        int rc = req->r_result;
        struct ceph_snap_context *snapc = req->r_snapc;
        struct address_space *mapping = inode->i_mapping;
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        unsigned int len = 0;
        bool remove_page;
  
-       dout("writepages_finish %p rc %d\n", inode, rc);
+       doutc(cl, "%llx.%llx rc %d\n", ceph_vinop(inode), rc);
        if (rc < 0) {
                mapping_set_error(mapping, rc);
                ceph_set_error_write(ci);
        /* clean all pages */
        for (i = 0; i < req->r_num_ops; i++) {
                if (req->r_ops[i].op != CEPH_OSD_OP_WRITE) {
-                       pr_warn("%s incorrect op %d req %p index %d tid %llu\n",
-                               __func__, req->r_ops[i].op, req, i, req->r_tid);
+                       pr_warn_client(cl,
+                               "%llx.%llx incorrect op %d req %p index %d tid %llu\n",
+                               ceph_vinop(inode), req->r_ops[i].op, req, i,
+                               req->r_tid);
                        break;
                }
  
  
                        ceph_put_snap_context(detach_page_private(page));
                        end_page_writeback(page);
-                       dout("unlocking %p\n", page);
+                       doutc(cl, "unlocking %p\n", page);
  
                        if (remove_page)
                                generic_error_remove_page(inode->i_mapping,
  
                        unlock_page(page);
                }
-               dout("writepages_finish %p wrote %llu bytes cleaned %d pages\n",
-                    inode, osd_data->length, rc >= 0 ? num_pages : 0);
+               doutc(cl, "%llx.%llx wrote %llu bytes cleaned %d pages\n",
+                     ceph_vinop(inode), osd_data->length,
+                     rc >= 0 ? num_pages : 0);
  
                release_pages(osd_data->pages, num_pages);
        }
@@@ -926,7 -941,8 +941,8 @@@ static int ceph_writepages_start(struc
  {
        struct inode *inode = mapping->host;
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_vino vino = ceph_vino(inode);
        pgoff_t index, start_index, end = -1;
        struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;
            fsc->write_congested)
                return 0;
  
-       dout("writepages_start %p (mode=%s)\n", inode,
-            wbc->sync_mode == WB_SYNC_NONE ? "NONE" :
-            (wbc->sync_mode == WB_SYNC_ALL ? "ALL" : "HOLD"));
+       doutc(cl, "%llx.%llx (mode=%s)\n", ceph_vinop(inode),
+             wbc->sync_mode == WB_SYNC_NONE ? "NONE" :
+             (wbc->sync_mode == WB_SYNC_ALL ? "ALL" : "HOLD"));
  
        if (ceph_inode_is_shutdown(inode)) {
                if (ci->i_wrbuffer_ref > 0) {
-                       pr_warn_ratelimited(
-                               "writepage_start %p %lld forced umount\n",
-                               inode, ceph_ino(inode));
+                       pr_warn_ratelimited_client(cl,
+                               "%llx.%llx %lld forced umount\n",
+                               ceph_vinop(inode), ceph_ino(inode));
                }
                mapping_set_error(mapping, -EIO);
                return -EIO; /* we're in a forced umount, don't write! */
@@@ -976,11 -992,11 +992,11 @@@ retry
        if (!snapc) {
                /* hmm, why does writepages get called when there
                   is no dirty data? */
-               dout(" no snap context with dirty data?\n");
+               doutc(cl, " no snap context with dirty data?\n");
                goto out;
        }
-       dout(" oldest snapc is %p seq %lld (%d snaps)\n",
-            snapc, snapc->seq, snapc->num_snaps);
+       doutc(cl, " oldest snapc is %p seq %lld (%d snaps)\n", snapc,
+             snapc->seq, snapc->num_snaps);
  
        should_loop = false;
        if (ceph_wbc.head_snapc && snapc != last_snapc) {
                        end = -1;
                        if (index > 0)
                                should_loop = true;
-                       dout(" cyclic, start at %lu\n", index);
+                       doutc(cl, " cyclic, start at %lu\n", index);
                } else {
                        index = wbc->range_start >> PAGE_SHIFT;
                        end = wbc->range_end >> PAGE_SHIFT;
                        if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
                                range_whole = true;
-                       dout(" not cyclic, %lu to %lu\n", index, end);
+                       doutc(cl, " not cyclic, %lu to %lu\n", index, end);
                }
        } else if (!ceph_wbc.head_snapc) {
                /* Do not respect wbc->range_{start,end}. Dirty pages
                 * associated with 'snapc' get written */
                if (index > 0)
                        should_loop = true;
-               dout(" non-head snapc, range whole\n");
+               doutc(cl, " non-head snapc, range whole\n");
        }
  
        if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
  get_more_pages:
                nr_folios = filemap_get_folios_tag(mapping, &index,
                                                   end, tag, &fbatch);
-               dout("pagevec_lookup_range_tag got %d\n", nr_folios);
+               doutc(cl, "pagevec_lookup_range_tag got %d\n", nr_folios);
                if (!nr_folios && !locked_pages)
                        break;
                for (i = 0; i < nr_folios && locked_pages < max_pages; i++) {
                        page = &fbatch.folios[i]->page;
-                       dout("? %p idx %lu\n", page, page->index);
+                       doutc(cl, "? %p idx %lu\n", page, page->index);
                        if (locked_pages == 0)
                                lock_page(page);  /* first page */
                        else if (!trylock_page(page))
                        /* only dirty pages, or our accounting breaks */
                        if (unlikely(!PageDirty(page)) ||
                            unlikely(page->mapping != mapping)) {
-                               dout("!dirty or !mapping %p\n", page);
+                               doutc(cl, "!dirty or !mapping %p\n", page);
                                unlock_page(page);
                                continue;
                        }
                        /* only if matching snap context */
                        pgsnapc = page_snap_context(page);
                        if (pgsnapc != snapc) {
-                               dout("page snapc %p %lld != oldest %p %lld\n",
-                                    pgsnapc, pgsnapc->seq, snapc, snapc->seq);
+                               doutc(cl, "page snapc %p %lld != oldest %p %lld\n",
+                                     pgsnapc, pgsnapc->seq, snapc, snapc->seq);
                                if (!should_loop &&
                                    !ceph_wbc.head_snapc &&
                                    wbc->sync_mode != WB_SYNC_NONE)
                        if (page_offset(page) >= ceph_wbc.i_size) {
                                struct folio *folio = page_folio(page);
  
-                               dout("folio at %lu beyond eof %llu\n",
-                                    folio->index, ceph_wbc.i_size);
+                               doutc(cl, "folio at %lu beyond eof %llu\n",
+                                     folio->index, ceph_wbc.i_size);
                                if ((ceph_wbc.size_stable ||
                                    folio_pos(folio) >= i_size_read(inode)) &&
                                    folio_clear_dirty_for_io(folio))
                                continue;
                        }
                        if (strip_unit_end && (page->index > strip_unit_end)) {
-                               dout("end of strip unit %p\n", page);
+                               doutc(cl, "end of strip unit %p\n", page);
                                unlock_page(page);
                                break;
                        }
                        if (PageWriteback(page) || PageFsCache(page)) {
                                if (wbc->sync_mode == WB_SYNC_NONE) {
-                                       dout("%p under writeback\n", page);
+                                       doutc(cl, "%p under writeback\n", page);
                                        unlock_page(page);
                                        continue;
                                }
-                               dout("waiting on writeback %p\n", page);
+                               doutc(cl, "waiting on writeback %p\n", page);
                                wait_on_page_writeback(page);
                                wait_on_page_fscache(page);
                        }
  
                        if (!clear_page_dirty_for_io(page)) {
-                               dout("%p !clear_page_dirty_for_io\n", page);
+                               doutc(cl, "%p !clear_page_dirty_for_io\n", page);
                                unlock_page(page);
                                continue;
                        }
                        }
  
                        /* note position of first page in fbatch */
-                       dout("%p will write page %p idx %lu\n",
-                            inode, page, page->index);
+                       doutc(cl, "%llx.%llx will write page %p idx %lu\n",
+                             ceph_vinop(inode), page, page->index);
  
                        if (atomic_long_inc_return(&fsc->writeback_count) >
                            CONGESTION_ON_THRESH(
                                                locked_pages ? GFP_NOWAIT : GFP_NOFS);
                                if (IS_ERR(pages[locked_pages])) {
                                        if (PTR_ERR(pages[locked_pages]) == -EINVAL)
-                                               pr_err("%s: inode->i_blkbits=%hhu\n",
-                                                       __func__, inode->i_blkbits);
+                                               pr_err_client(cl,
+                                                       "inode->i_blkbits=%hhu\n",
+                                                       inode->i_blkbits);
                                        /* better not fail on first page! */
                                        BUG_ON(locked_pages == 0);
                                        pages[locked_pages] = NULL;
  
                        if (nr_folios && i == nr_folios &&
                            locked_pages < max_pages) {
-                               dout("reached end fbatch, trying for more\n");
+                               doutc(cl, "reached end fbatch, trying for more\n");
                                folio_batch_release(&fbatch);
                                goto get_more_pages;
                        }
@@@ -1254,8 -1271,8 +1271,8 @@@ new_request
                                /* Start a new extent */
                                osd_req_op_extent_dup_last(req, op_idx,
                                                           cur_offset - offset);
-                               dout("writepages got pages at %llu~%llu\n",
-                                    offset, len);
+                               doutc(cl, "got pages at %llu~%llu\n", offset,
+                                     len);
                                osd_req_op_extent_osd_data_pages(req, op_idx,
                                                        data_pages, len, 0,
                                                        from_pool, false);
                if (IS_ENCRYPTED(inode))
                        len = round_up(len, CEPH_FSCRYPT_BLOCK_SIZE);
  
-               dout("writepages got pages at %llu~%llu\n", offset, len);
+               doutc(cl, "got pages at %llu~%llu\n", offset, len);
  
                if (IS_ENCRYPTED(inode) &&
                    ((offset | len) & ~CEPH_FSCRYPT_BLOCK_MASK))
-                       pr_warn("%s: bad encrypted write offset=%lld len=%llu\n",
-                               __func__, offset, len);
+                       pr_warn_client(cl,
+                               "bad encrypted write offset=%lld len=%llu\n",
+                               offset, len);
  
                osd_req_op_extent_osd_data_pages(req, op_idx, data_pages, len,
                                                 0, from_pool, false);
                        pages = NULL;
                }
  
 -              req->r_mtime = inode->i_mtime;
 +              req->r_mtime = inode_get_mtime(inode);
                ceph_osdc_start_request(&fsc->client->osdc, req);
                req = NULL;
  
                        done = true;
  
  release_folios:
-               dout("folio_batch release on %d folios (%p)\n", (int)fbatch.nr,
-                    fbatch.nr ? fbatch.folios[0] : NULL);
+               doutc(cl, "folio_batch release on %d folios (%p)\n",
+                     (int)fbatch.nr, fbatch.nr ? fbatch.folios[0] : NULL);
                folio_batch_release(&fbatch);
        }
  
        if (should_loop && !done) {
                /* more to do; loop back to beginning of file */
-               dout("writepages looping back to beginning of file\n");
+               doutc(cl, "looping back to beginning of file\n");
                end = start_index - 1; /* OK even when start_index == 0 */
  
                /* to write dirty pages associated with next snapc,
  out:
        ceph_osdc_put_request(req);
        ceph_put_snap_context(last_snapc);
-       dout("writepages dend - startone, rc = %d\n", rc);
+       doutc(cl, "%llx.%llx dend - startone, rc = %d\n", ceph_vinop(inode),
+             rc);
        return rc;
  }
  
@@@ -1424,11 -1443,12 +1443,12 @@@ static struct ceph_snap_context 
  ceph_find_incompatible(struct page *page)
  {
        struct inode *inode = page->mapping->host;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
  
        if (ceph_inode_is_shutdown(inode)) {
-               dout(" page %p %llx:%llx is shutdown\n", page,
-                    ceph_vinop(inode));
+               doutc(cl, " %llx.%llx page %p is shutdown\n",
+                     ceph_vinop(inode), page);
                return ERR_PTR(-ESTALE);
        }
  
                if (snapc->seq > oldest->seq) {
                        /* not writeable -- return it for the caller to deal with */
                        ceph_put_snap_context(oldest);
-                       dout(" page %p snapc %p not current or oldest\n", page, snapc);
+                       doutc(cl, " %llx.%llx page %p snapc %p not current or oldest\n",
+                             ceph_vinop(inode), page, snapc);
                        return ceph_get_snap_context(snapc);
                }
                ceph_put_snap_context(oldest);
  
                /* yay, writeable, do it now (without dropping page lock) */
-               dout(" page %p snapc %p not current, but oldest\n", page, snapc);
+               doutc(cl, " %llx.%llx page %p snapc %p not current, but oldest\n",
+                     ceph_vinop(inode), page, snapc);
                if (clear_page_dirty_for_io(page)) {
                        int r = writepage_nounlock(page, NULL);
                        if (r < 0)
@@@ -1524,10 -1546,11 +1546,11 @@@ static int ceph_write_end(struct file *
  {
        struct folio *folio = page_folio(subpage);
        struct inode *inode = file_inode(file);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        bool check_cap = false;
  
-       dout("write_end file %p inode %p folio %p %d~%d (%d)\n", file,
-            inode, folio, (int)pos, (int)copied, (int)len);
+       doutc(cl, "%llx.%llx file %p folio %p %d~%d (%d)\n", ceph_vinop(inode),
+             file, folio, (int)pos, (int)copied, (int)len);
  
        if (!folio_test_uptodate(folio)) {
                /* just return that nothing was copied on a short copy */
@@@ -1587,6 -1610,7 +1610,7 @@@ static vm_fault_t ceph_filemap_fault(st
        struct vm_area_struct *vma = vmf->vma;
        struct inode *inode = file_inode(vma->vm_file);
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_file_info *fi = vma->vm_file->private_data;
        loff_t off = (loff_t)vmf->pgoff << PAGE_SHIFT;
        int want, got, err;
  
        ceph_block_sigs(&oldset);
  
-       dout("filemap_fault %p %llx.%llx %llu trying to get caps\n",
-            inode, ceph_vinop(inode), off);
+       doutc(cl, "%llx.%llx %llu trying to get caps\n",
+             ceph_vinop(inode), off);
        if (fi->fmode & CEPH_FILE_MODE_LAZY)
                want = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO;
        else
        if (err < 0)
                goto out_restore;
  
-       dout("filemap_fault %p %llu got cap refs on %s\n",
-            inode, off, ceph_cap_string(got));
+       doutc(cl, "%llx.%llx %llu got cap refs on %s\n", ceph_vinop(inode),
+             off, ceph_cap_string(got));
  
        if ((got & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO)) ||
            !ceph_has_inline_data(ci)) {
                ceph_add_rw_context(fi, &rw_ctx);
                ret = filemap_fault(vmf);
                ceph_del_rw_context(fi, &rw_ctx);
-               dout("filemap_fault %p %llu drop cap refs %s ret %x\n",
-                    inode, off, ceph_cap_string(got), ret);
+               doutc(cl, "%llx.%llx %llu drop cap refs %s ret %x\n",
+                     ceph_vinop(inode), off, ceph_cap_string(got), ret);
        } else
                err = -EAGAIN;
  
                ret = VM_FAULT_MAJOR | VM_FAULT_LOCKED;
  out_inline:
                filemap_invalidate_unlock_shared(mapping);
-               dout("filemap_fault %p %llu read inline data ret %x\n",
-                    inode, off, ret);
+               doutc(cl, "%llx.%llx %llu read inline data ret %x\n",
+                     ceph_vinop(inode), off, ret);
        }
  out_restore:
        ceph_restore_sigs(&oldset);
@@@ -1676,6 -1700,7 +1700,7 @@@ static vm_fault_t ceph_page_mkwrite(str
  {
        struct vm_area_struct *vma = vmf->vma;
        struct inode *inode = file_inode(vma->vm_file);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_file_info *fi = vma->vm_file->private_data;
        struct ceph_cap_flush *prealloc_cf;
        else
                len = offset_in_thp(page, size);
  
-       dout("page_mkwrite %p %llx.%llx %llu~%zd getting caps i_size %llu\n",
-            inode, ceph_vinop(inode), off, len, size);
+       doutc(cl, "%llx.%llx %llu~%zd getting caps i_size %llu\n",
+             ceph_vinop(inode), off, len, size);
        if (fi->fmode & CEPH_FILE_MODE_LAZY)
                want = CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO;
        else
        if (err < 0)
                goto out_free;
  
-       dout("page_mkwrite %p %llu~%zd got cap refs on %s\n",
-            inode, off, len, ceph_cap_string(got));
+       doutc(cl, "%llx.%llx %llu~%zd got cap refs on %s\n", ceph_vinop(inode),
+             off, len, ceph_cap_string(got));
  
        /* Update time before taking page lock */
        file_update_time(vma->vm_file);
                        __mark_inode_dirty(inode, dirty);
        }
  
-       dout("page_mkwrite %p %llu~%zd dropping cap refs on %s ret %x\n",
-            inode, off, len, ceph_cap_string(got), ret);
+       doutc(cl, "%llx.%llx %llu~%zd dropping cap refs on %s ret %x\n",
+             ceph_vinop(inode), off, len, ceph_cap_string(got), ret);
        ceph_put_cap_refs_async(ci, got);
  out_free:
        ceph_restore_sigs(&oldset);
  void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
                           char *data, size_t len)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct address_space *mapping = inode->i_mapping;
        struct page *page;
  
                }
        }
  
-       dout("fill_inline_data %p %llx.%llx len %zu locked_page %p\n",
-            inode, ceph_vinop(inode), len, locked_page);
+       doutc(cl, "%p %llx.%llx len %zu locked_page %p\n", inode,
+             ceph_vinop(inode), len, locked_page);
  
        if (len > 0) {
                void *kaddr = kmap_atomic(page);
@@@ -1823,7 -1849,8 +1849,8 @@@ int ceph_uninline_data(struct file *fil
  {
        struct inode *inode = file_inode(file);
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_request *req = NULL;
        struct ceph_cap_flush *prealloc_cf = NULL;
        struct folio *folio = NULL;
        inline_version = ci->i_inline_version;
        spin_unlock(&ci->i_ceph_lock);
  
-       dout("uninline_data %p %llx.%llx inline_version %llu\n",
-            inode, ceph_vinop(inode), inline_version);
+       doutc(cl, "%llx.%llx inline_version %llu\n", ceph_vinop(inode),
+             inline_version);
  
        if (ceph_inode_is_shutdown(inode)) {
                err = -EIO;
                goto out_unlock;
        }
  
 -      req->r_mtime = inode->i_mtime;
 +      req->r_mtime = inode_get_mtime(inode);
        ceph_osdc_start_request(&fsc->client->osdc, req);
        err = ceph_osdc_wait_request(&fsc->client->osdc, req);
        ceph_osdc_put_request(req);
                        goto out_put_req;
        }
  
 -      req->r_mtime = inode->i_mtime;
 +      req->r_mtime = inode_get_mtime(inode);
        ceph_osdc_start_request(&fsc->client->osdc, req);
        err = ceph_osdc_wait_request(&fsc->client->osdc, req);
  
@@@ -1949,8 -1976,8 +1976,8 @@@ out_unlock
        }
  out:
        ceph_free_cap_flush(prealloc_cf);
-       dout("uninline_data %p %llx.%llx inline_version %llu = %d\n",
-            inode, ceph_vinop(inode), inline_version, err);
+       doutc(cl, "%llx.%llx inline_version %llu = %d\n",
+             ceph_vinop(inode), inline_version, err);
        return err;
  }
  
@@@ -1977,8 -2004,9 +2004,9 @@@ enum 
  static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
                                s64 pool, struct ceph_string *pool_ns)
  {
-       struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->netfs.inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(&ci->netfs.inode);
        struct ceph_mds_client *mdsc = fsc->mdsc;
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_request *rd_req = NULL, *wr_req = NULL;
        struct rb_node **p, *parent;
        struct ceph_pool_perm *perm;
                goto out;
  
        if (pool_ns)
-               dout("__ceph_pool_perm_get pool %lld ns %.*s no perm cached\n",
-                    pool, (int)pool_ns->len, pool_ns->str);
+               doutc(cl, "pool %lld ns %.*s no perm cached\n", pool,
+                     (int)pool_ns->len, pool_ns->str);
        else
-               dout("__ceph_pool_perm_get pool %lld no perm cached\n", pool);
+               doutc(cl, "pool %lld no perm cached\n", pool);
  
        down_write(&mdsc->pool_perm_rwsem);
        p = &mdsc->pool_perm_tree.rb_node;
                                     0, false, true);
        ceph_osdc_start_request(&fsc->client->osdc, rd_req);
  
 -      wr_req->r_mtime = ci->netfs.inode.i_mtime;
 +      wr_req->r_mtime = inode_get_mtime(&ci->netfs.inode);
        ceph_osdc_start_request(&fsc->client->osdc, wr_req);
  
        err = ceph_osdc_wait_request(&fsc->client->osdc, rd_req);
        if (!err)
                err = have;
        if (pool_ns)
-               dout("__ceph_pool_perm_get pool %lld ns %.*s result = %d\n",
-                    pool, (int)pool_ns->len, pool_ns->str, err);
+               doutc(cl, "pool %lld ns %.*s result = %d\n", pool,
+                     (int)pool_ns->len, pool_ns->str, err);
        else
-               dout("__ceph_pool_perm_get pool %lld result = %d\n", pool, err);
+               doutc(cl, "pool %lld result = %d\n", pool, err);
        return err;
  }
  
  int ceph_pool_perm_check(struct inode *inode, int need)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_string *pool_ns;
        s64 pool;
                return 0;
        }
  
-       if (ceph_test_mount_opt(ceph_inode_to_client(inode),
+       if (ceph_test_mount_opt(ceph_inode_to_fs_client(inode),
                                NOPOOLPERM))
                return 0;
  
  check:
        if (flags & CEPH_I_POOL_PERM) {
                if ((need & CEPH_CAP_FILE_RD) && !(flags & CEPH_I_POOL_RD)) {
-                       dout("ceph_pool_perm_check pool %lld no read perm\n",
-                            pool);
+                       doutc(cl, "pool %lld no read perm\n", pool);
                        return -EPERM;
                }
                if ((need & CEPH_CAP_FILE_WR) && !(flags & CEPH_I_POOL_WR)) {
-                       dout("ceph_pool_perm_check pool %lld no write perm\n",
-                            pool);
+                       doutc(cl, "pool %lld no write perm\n", pool);
                        return -EPERM;
                }
                return 0;
diff --combined fs/ceph/caps.c
index a104669fcf4c7f473e75152123f7ca3caaf5eb4f,46b73a62024e3da0b3bebb84ae4d733436667fd7..2c0b8dc3dd0d80314b04c0717501f066079b97eb
@@@ -186,10 -186,10 +186,10 @@@ static void __ceph_unreserve_caps(struc
                        mdsc->caps_avail_count += nr_caps;
                }
  
-               dout("%s: caps %d = %d used + %d resv + %d avail\n",
-                    __func__,
-                    mdsc->caps_total_count, mdsc->caps_use_count,
-                    mdsc->caps_reserve_count, mdsc->caps_avail_count);
+               doutc(mdsc->fsc->client,
+                     "caps %d = %d used + %d resv + %d avail\n",
+                     mdsc->caps_total_count, mdsc->caps_use_count,
+                     mdsc->caps_reserve_count, mdsc->caps_avail_count);
                BUG_ON(mdsc->caps_total_count != mdsc->caps_use_count +
                                                 mdsc->caps_reserve_count +
                                                 mdsc->caps_avail_count);
  int ceph_reserve_caps(struct ceph_mds_client *mdsc,
                      struct ceph_cap_reservation *ctx, int need)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int i, j;
        struct ceph_cap *cap;
        int have;
        struct ceph_mds_session *s;
        LIST_HEAD(newcaps);
  
-       dout("reserve caps ctx=%p need=%d\n", ctx, need);
+       doutc(cl, "ctx=%p need=%d\n", ctx, need);
  
        /* first reserve any caps that are already allocated */
        spin_lock(&mdsc->caps_list_lock);
                        continue;
                }
  
-               pr_warn("reserve caps ctx=%p ENOMEM need=%d got=%d\n",
-                       ctx, need, have + alloc);
+               pr_warn_client(cl, "ctx=%p ENOMEM need=%d got=%d\n", ctx, need,
+                              have + alloc);
                err = -ENOMEM;
                break;
        }
  
        spin_unlock(&mdsc->caps_list_lock);
  
-       dout("reserve caps ctx=%p %d = %d used + %d resv + %d avail\n",
-            ctx, mdsc->caps_total_count, mdsc->caps_use_count,
-            mdsc->caps_reserve_count, mdsc->caps_avail_count);
+       doutc(cl, "ctx=%p %d = %d used + %d resv + %d avail\n", ctx,
+             mdsc->caps_total_count, mdsc->caps_use_count,
+             mdsc->caps_reserve_count, mdsc->caps_avail_count);
        return err;
  }
  
  void ceph_unreserve_caps(struct ceph_mds_client *mdsc,
                         struct ceph_cap_reservation *ctx)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        bool reclaim = false;
        if (!ctx->count)
                return;
  
-       dout("unreserve caps ctx=%p count=%d\n", ctx, ctx->count);
+       doutc(cl, "ctx=%p count=%d\n", ctx, ctx->count);
        spin_lock(&mdsc->caps_list_lock);
        __ceph_unreserve_caps(mdsc, ctx->count);
        ctx->count = 0;
  struct ceph_cap *ceph_get_cap(struct ceph_mds_client *mdsc,
                              struct ceph_cap_reservation *ctx)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_cap *cap = NULL;
  
        /* temporary, until we do something about cap import/export */
        }
  
        spin_lock(&mdsc->caps_list_lock);
-       dout("get_cap ctx=%p (%d) %d = %d used + %d resv + %d avail\n",
-            ctx, ctx->count, mdsc->caps_total_count, mdsc->caps_use_count,
-            mdsc->caps_reserve_count, mdsc->caps_avail_count);
+       doutc(cl, "ctx=%p (%d) %d = %d used + %d resv + %d avail\n", ctx,
+             ctx->count, mdsc->caps_total_count, mdsc->caps_use_count,
+             mdsc->caps_reserve_count, mdsc->caps_avail_count);
        BUG_ON(!ctx->count);
        BUG_ON(ctx->count > mdsc->caps_reserve_count);
        BUG_ON(list_empty(&mdsc->caps_list));
  
  void ceph_put_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        spin_lock(&mdsc->caps_list_lock);
-       dout("put_cap %p %d = %d used + %d resv + %d avail\n",
-            cap, mdsc->caps_total_count, mdsc->caps_use_count,
-            mdsc->caps_reserve_count, mdsc->caps_avail_count);
+       doutc(cl, "%p %d = %d used + %d resv + %d avail\n", cap,
+             mdsc->caps_total_count, mdsc->caps_use_count,
+             mdsc->caps_reserve_count, mdsc->caps_avail_count);
        mdsc->caps_use_count--;
        /*
         * Keep some preallocated caps around (ceph_min_count), to
@@@ -491,11 -496,13 +496,13 @@@ static void __insert_cap_node(struct ce
  static void __cap_set_timeouts(struct ceph_mds_client *mdsc,
                               struct ceph_inode_info *ci)
  {
+       struct inode *inode = &ci->netfs.inode;
        struct ceph_mount_options *opt = mdsc->fsc->mount_options;
        ci->i_hold_caps_max = round_jiffies(jiffies +
                                            opt->caps_wanted_delay_max * HZ);
-       dout("__cap_set_timeouts %p %lu\n", &ci->netfs.inode,
-            ci->i_hold_caps_max - jiffies);
+       doutc(mdsc->fsc->client, "%p %llx.%llx %lu\n", inode,
+             ceph_vinop(inode), ci->i_hold_caps_max - jiffies);
  }
  
  /*
  static void __cap_delay_requeue(struct ceph_mds_client *mdsc,
                                struct ceph_inode_info *ci)
  {
-       dout("__cap_delay_requeue %p flags 0x%lx at %lu\n", &ci->netfs.inode,
-            ci->i_ceph_flags, ci->i_hold_caps_max);
+       struct inode *inode = &ci->netfs.inode;
+       doutc(mdsc->fsc->client, "%p %llx.%llx flags 0x%lx at %lu\n",
+             inode, ceph_vinop(inode), ci->i_ceph_flags,
+             ci->i_hold_caps_max);
        if (!mdsc->stopping) {
                spin_lock(&mdsc->cap_delay_lock);
                if (!list_empty(&ci->i_cap_delay_list)) {
@@@ -533,7 -543,9 +543,9 @@@ no_change
  static void __cap_delay_requeue_front(struct ceph_mds_client *mdsc,
                                      struct ceph_inode_info *ci)
  {
-       dout("__cap_delay_requeue_front %p\n", &ci->netfs.inode);
+       struct inode *inode = &ci->netfs.inode;
+       doutc(mdsc->fsc->client, "%p %llx.%llx\n", inode, ceph_vinop(inode));
        spin_lock(&mdsc->cap_delay_lock);
        ci->i_ceph_flags |= CEPH_I_FLUSH;
        if (!list_empty(&ci->i_cap_delay_list))
  static void __cap_delay_cancel(struct ceph_mds_client *mdsc,
                               struct ceph_inode_info *ci)
  {
-       dout("__cap_delay_cancel %p\n", &ci->netfs.inode);
+       struct inode *inode = &ci->netfs.inode;
+       doutc(mdsc->fsc->client, "%p %llx.%llx\n", inode, ceph_vinop(inode));
        if (list_empty(&ci->i_cap_delay_list))
                return;
        spin_lock(&mdsc->cap_delay_lock);
  static void __check_cap_issue(struct ceph_inode_info *ci, struct ceph_cap *cap,
                              unsigned issued)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        unsigned had = __ceph_caps_issued(ci, NULL);
  
        lockdep_assert_held(&ci->i_ceph_lock);
                if (issued & CEPH_CAP_FILE_SHARED)
                        atomic_inc(&ci->i_shared_gen);
                if (S_ISDIR(ci->netfs.inode.i_mode)) {
-                       dout(" marking %p NOT complete\n", &ci->netfs.inode);
+                       doutc(cl, " marking %p NOT complete\n", inode);
                        __ceph_dir_clear_complete(ci);
                }
        }
@@@ -635,7 -652,8 +652,8 @@@ void ceph_add_cap(struct inode *inode
                  unsigned seq, unsigned mseq, u64 realmino, int flags,
                  struct ceph_cap **new_cap)
  {
-       struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_inode_to_fs_client(inode)->mdsc;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_cap *cap;
        int mds = session->s_mds;
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       dout("add_cap %p mds%d cap %llx %s seq %d\n", inode,
-            session->s_mds, cap_id, ceph_cap_string(issued), seq);
+       doutc(cl, "%p %llx.%llx mds%d cap %llx %s seq %d\n", inode,
+             ceph_vinop(inode), session->s_mds, cap_id,
+             ceph_cap_string(issued), seq);
  
        gen = atomic_read(&session->s_cap_gen);
  
        actual_wanted = __ceph_caps_wanted(ci);
        if ((wanted & ~actual_wanted) ||
            (issued & ~actual_wanted & CEPH_CAP_ANY_WR)) {
-               dout(" issued %s, mds wanted %s, actual %s, queueing\n",
-                    ceph_cap_string(issued), ceph_cap_string(wanted),
-                    ceph_cap_string(actual_wanted));
+               doutc(cl, "issued %s, mds wanted %s, actual %s, queueing\n",
+                     ceph_cap_string(issued), ceph_cap_string(wanted),
+                     ceph_cap_string(actual_wanted));
                __cap_delay_requeue(mdsc, ci);
        }
  
                WARN_ON(ci->i_auth_cap == cap);
        }
  
-       dout("add_cap inode %p (%llx.%llx) cap %p %s now %s seq %d mds%d\n",
-            inode, ceph_vinop(inode), cap, ceph_cap_string(issued),
-            ceph_cap_string(issued|cap->issued), seq, mds);
+       doutc(cl, "inode %p %llx.%llx cap %p %s now %s seq %d mds%d\n",
+             inode, ceph_vinop(inode), cap, ceph_cap_string(issued),
+             ceph_cap_string(issued|cap->issued), seq, mds);
        cap->cap_id = cap_id;
        cap->issued = issued;
        cap->implemented |= issued;
   */
  static int __cap_is_valid(struct ceph_cap *cap)
  {
+       struct inode *inode = &cap->ci->netfs.inode;
+       struct ceph_client *cl = cap->session->s_mdsc->fsc->client;
        unsigned long ttl;
        u32 gen;
  
        ttl = cap->session->s_cap_ttl;
  
        if (cap->cap_gen < gen || time_after_eq(jiffies, ttl)) {
-               dout("__cap_is_valid %p cap %p issued %s "
-                    "but STALE (gen %u vs %u)\n", &cap->ci->netfs.inode,
-                    cap, ceph_cap_string(cap->issued), cap->cap_gen, gen);
+               doutc(cl, "%p %llx.%llx cap %p issued %s but STALE (gen %u vs %u)\n",
+                     inode, ceph_vinop(inode), cap,
+                     ceph_cap_string(cap->issued), cap->cap_gen, gen);
                return 0;
        }
  
   */
  int __ceph_caps_issued(struct ceph_inode_info *ci, int *implemented)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int have = ci->i_snap_caps;
        struct ceph_cap *cap;
        struct rb_node *p;
                cap = rb_entry(p, struct ceph_cap, ci_node);
                if (!__cap_is_valid(cap))
                        continue;
-               dout("__ceph_caps_issued %p cap %p issued %s\n",
-                    &ci->netfs.inode, cap, ceph_cap_string(cap->issued));
+               doutc(cl, "%p %llx.%llx cap %p issued %s\n", inode,
+                     ceph_vinop(inode), cap, ceph_cap_string(cap->issued));
                have |= cap->issued;
                if (implemented)
                        *implemented |= cap->implemented;
@@@ -843,16 -866,18 +866,18 @@@ int __ceph_caps_issued_other(struct cep
   */
  static void __touch_cap(struct ceph_cap *cap)
  {
+       struct inode *inode = &cap->ci->netfs.inode;
        struct ceph_mds_session *s = cap->session;
+       struct ceph_client *cl = s->s_mdsc->fsc->client;
  
        spin_lock(&s->s_cap_lock);
        if (!s->s_cap_iterator) {
-               dout("__touch_cap %p cap %p mds%d\n", &cap->ci->netfs.inode, cap,
-                    s->s_mds);
+               doutc(cl, "%p %llx.%llx cap %p mds%d\n", inode,
+                     ceph_vinop(inode), cap, s->s_mds);
                list_move_tail(&cap->session_caps, &s->s_caps);
        } else {
-               dout("__touch_cap %p cap %p mds%d NOP, iterating over caps\n",
-                    &cap->ci->netfs.inode, cap, s->s_mds);
+               doutc(cl, "%p %llx.%llx cap %p mds%d NOP, iterating over caps\n",
+                     inode, ceph_vinop(inode), cap, s->s_mds);
        }
        spin_unlock(&s->s_cap_lock);
  }
   */
  int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_cap *cap;
        struct rb_node *p;
        int have = ci->i_snap_caps;
  
        if ((have & mask) == mask) {
-               dout("__ceph_caps_issued_mask ino 0x%llx snap issued %s"
-                    " (mask %s)\n", ceph_ino(&ci->netfs.inode),
-                    ceph_cap_string(have),
-                    ceph_cap_string(mask));
+               doutc(cl, "mask %p %llx.%llx snap issued %s (mask %s)\n",
+                     inode, ceph_vinop(inode), ceph_cap_string(have),
+                     ceph_cap_string(mask));
                return 1;
        }
  
                if (!__cap_is_valid(cap))
                        continue;
                if ((cap->issued & mask) == mask) {
-                       dout("__ceph_caps_issued_mask ino 0x%llx cap %p issued %s"
-                            " (mask %s)\n", ceph_ino(&ci->netfs.inode), cap,
-                            ceph_cap_string(cap->issued),
-                            ceph_cap_string(mask));
+                       doutc(cl, "mask %p %llx.%llx cap %p issued %s (mask %s)\n",
+                             inode, ceph_vinop(inode), cap,
+                             ceph_cap_string(cap->issued),
+                             ceph_cap_string(mask));
                        if (touch)
                                __touch_cap(cap);
                        return 1;
                /* does a combination of caps satisfy mask? */
                have |= cap->issued;
                if ((have & mask) == mask) {
-                       dout("__ceph_caps_issued_mask ino 0x%llx combo issued %s"
-                            " (mask %s)\n", ceph_ino(&ci->netfs.inode),
-                            ceph_cap_string(cap->issued),
-                            ceph_cap_string(mask));
+                       doutc(cl, "mask %p %llx.%llx combo issued %s (mask %s)\n",
+                             inode, ceph_vinop(inode),
+                             ceph_cap_string(cap->issued),
+                             ceph_cap_string(mask));
                        if (touch) {
                                struct rb_node *q;
  
  int __ceph_caps_issued_mask_metric(struct ceph_inode_info *ci, int mask,
                                   int touch)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
        int r;
  
        r = __ceph_caps_issued_mask(ci, mask, touch);
@@@ -954,13 -980,14 +980,14 @@@ int __ceph_caps_revoking_other(struct c
  int ceph_caps_revoking(struct ceph_inode_info *ci, int mask)
  {
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int ret;
  
        spin_lock(&ci->i_ceph_lock);
        ret = __ceph_caps_revoking_other(ci, NULL, mask);
        spin_unlock(&ci->i_ceph_lock);
-       dout("ceph_caps_revoking %p %s = %d\n", inode,
-            ceph_cap_string(mask), ret);
+       doutc(cl, "%p %llx.%llx %s = %d\n", inode, ceph_vinop(inode),
+             ceph_cap_string(mask), ret);
        return ret;
  }
  
@@@ -996,7 -1023,7 +1023,7 @@@ int __ceph_caps_file_wanted(struct ceph
        const int WR_SHIFT = ffs(CEPH_FILE_MODE_WR);
        const int LAZY_SHIFT = ffs(CEPH_FILE_MODE_LAZY);
        struct ceph_mount_options *opt =
-               ceph_inode_to_client(&ci->netfs.inode)->mount_options;
+               ceph_inode_to_fs_client(&ci->netfs.inode)->mount_options;
        unsigned long used_cutoff = jiffies - opt->caps_wanted_delay_max * HZ;
        unsigned long idle_cutoff = jiffies - opt->caps_wanted_delay_min * HZ;
  
@@@ -1107,21 -1134,23 +1134,23 @@@ int ceph_is_any_caps(struct inode *inod
  void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
  {
        struct ceph_mds_session *session = cap->session;
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        struct ceph_inode_info *ci = cap->ci;
+       struct inode *inode = &ci->netfs.inode;
        struct ceph_mds_client *mdsc;
        int removed = 0;
  
        /* 'ci' being NULL means the remove have already occurred */
        if (!ci) {
-               dout("%s: cap inode is NULL\n", __func__);
+               doutc(cl, "inode is NULL\n");
                return;
        }
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       dout("__ceph_remove_cap %p from %p\n", cap, &ci->netfs.inode);
+       doutc(cl, "%p from %p %llx.%llx\n", cap, inode, ceph_vinop(inode));
  
-       mdsc = ceph_inode_to_client(&ci->netfs.inode)->mdsc;
+       mdsc = ceph_inode_to_fs_client(&ci->netfs.inode)->mdsc;
  
        /* remove from inode's cap rbtree, and clear auth cap */
        rb_erase(&cap->ci_node, &ci->i_caps);
        spin_lock(&session->s_cap_lock);
        if (session->s_cap_iterator == cap) {
                /* not yet, we are iterating over this very cap */
-               dout("__ceph_remove_cap  delaying %p removal from session %p\n",
-                    cap, cap->session);
+               doutc(cl, "delaying %p removal from session %p\n", cap,
+                     cap->session);
        } else {
                list_del_init(&cap->session_caps);
                session->s_nr_caps--;
        }
  }
  
- void ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
+ void ceph_remove_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
+                    bool queue_release)
  {
        struct ceph_inode_info *ci = cap->ci;
        struct ceph_fs_client *fsc;
  
        /* 'ci' being NULL means the remove have already occurred */
        if (!ci) {
-               dout("%s: cap inode is NULL\n", __func__);
+               doutc(mdsc->fsc->client, "inode is NULL\n");
                return;
        }
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       fsc = ceph_inode_to_client(&ci->netfs.inode);
+       fsc = ceph_inode_to_fs_client(&ci->netfs.inode);
        WARN_ON_ONCE(ci->i_auth_cap == cap &&
                     !list_empty(&ci->i_dirty_item) &&
                     !fsc->blocklisted &&
@@@ -1227,15 -1257,19 +1257,19 @@@ static void encode_cap_msg(struct ceph_
  {
        struct ceph_mds_caps *fc;
        void *p;
-       struct ceph_osd_client *osdc = &arg->session->s_mdsc->fsc->client->osdc;
-       dout("%s %s %llx %llx caps %s wanted %s dirty %s seq %u/%u tid %llu/%llu mseq %u follows %lld size %llu/%llu xattr_ver %llu xattr_len %d\n",
-            __func__, ceph_cap_op_name(arg->op), arg->cid, arg->ino,
-            ceph_cap_string(arg->caps), ceph_cap_string(arg->wanted),
-            ceph_cap_string(arg->dirty), arg->seq, arg->issue_seq,
-            arg->flush_tid, arg->oldest_flush_tid, arg->mseq, arg->follows,
-            arg->size, arg->max_size, arg->xattr_version,
-            arg->xattr_buf ? (int)arg->xattr_buf->vec.iov_len : 0);
+       struct ceph_mds_client *mdsc = arg->session->s_mdsc;
+       struct ceph_osd_client *osdc = &mdsc->fsc->client->osdc;
+       doutc(mdsc->fsc->client,
+             "%s %llx %llx caps %s wanted %s dirty %s seq %u/%u"
+             " tid %llu/%llu mseq %u follows %lld size %llu/%llu"
+             " xattr_ver %llu xattr_len %d\n",
+             ceph_cap_op_name(arg->op), arg->cid, arg->ino,
+             ceph_cap_string(arg->caps), ceph_cap_string(arg->wanted),
+             ceph_cap_string(arg->dirty), arg->seq, arg->issue_seq,
+             arg->flush_tid, arg->oldest_flush_tid, arg->mseq, arg->follows,
+             arg->size, arg->max_size, arg->xattr_version,
+             arg->xattr_buf ? (int)arg->xattr_buf->vec.iov_len : 0);
  
        msg->hdr.version = cpu_to_le16(12);
        msg->hdr.tid = cpu_to_le64(arg->flush_tid);
   */
  void __ceph_remove_caps(struct ceph_inode_info *ci)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_mds_client *mdsc = ceph_inode_to_fs_client(inode)->mdsc;
        struct rb_node *p;
  
        /* lock i_ceph_lock, because ceph_d_revalidate(..., LOOKUP_RCU)
        while (p) {
                struct ceph_cap *cap = rb_entry(p, struct ceph_cap, ci_node);
                p = rb_next(p);
-               ceph_remove_cap(cap, true);
+               ceph_remove_cap(mdsc, cap, true);
        }
        spin_unlock(&ci->i_ceph_lock);
  }
@@@ -1370,6 -1406,7 +1406,7 @@@ static void __prep_cap(struct cap_msg_a
  {
        struct ceph_inode_info *ci = cap->ci;
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int held, revoking;
  
        lockdep_assert_held(&ci->i_ceph_lock);
        revoking = cap->implemented & ~cap->issued;
        retain &= ~revoking;
  
-       dout("%s %p cap %p session %p %s -> %s (revoking %s)\n",
-            __func__, inode, cap, cap->session,
-            ceph_cap_string(held), ceph_cap_string(held & retain),
-            ceph_cap_string(revoking));
+       doutc(cl, "%p %llx.%llx cap %p session %p %s -> %s (revoking %s)\n",
+             inode, ceph_vinop(inode), cap, cap->session,
+             ceph_cap_string(held), ceph_cap_string(held & retain),
+             ceph_cap_string(revoking));
        BUG_ON((retain & CEPH_CAP_PIN) == 0);
  
        ci->i_ceph_flags &= ~CEPH_I_FLUSH;
                arg->old_xattr_buf = NULL;
        }
  
 -      arg->mtime = inode->i_mtime;
 -      arg->atime = inode->i_atime;
 +      arg->mtime = inode_get_mtime(inode);
 +      arg->atime = inode_get_atime(inode);
        arg->ctime = inode_get_ctime(inode);
        arg->btime = ci->i_btime;
        arg->change_attr = inode_peek_iversion_raw(inode);
@@@ -1497,13 -1534,16 +1534,16 @@@ static void __send_cap(struct cap_msg_a
  {
        struct ceph_msg *msg;
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
  
        msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, cap_msg_size(arg), GFP_NOFS,
                           false);
        if (!msg) {
-               pr_err("error allocating cap msg: ino (%llx.%llx) flushing %s tid %llu, requeuing cap.\n",
-                      ceph_vinop(inode), ceph_cap_string(arg->dirty),
-                      arg->flush_tid);
+               pr_err_client(cl,
+                             "error allocating cap msg: ino (%llx.%llx)"
+                             " flushing %s tid %llu, requeuing cap.\n",
+                             ceph_vinop(inode), ceph_cap_string(arg->dirty),
+                             arg->flush_tid);
                spin_lock(&ci->i_ceph_lock);
                __cap_delay_requeue(arg->session->s_mdsc, ci);
                spin_unlock(&ci->i_ceph_lock);
@@@ -1592,11 -1632,13 +1632,13 @@@ static void __ceph_flush_snaps(struct c
  {
        struct inode *inode = &ci->netfs.inode;
        struct ceph_mds_client *mdsc = session->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_cap_snap *capsnap;
        u64 oldest_flush_tid = 0;
        u64 first_tid = 1, last_tid = 0;
  
-       dout("__flush_snaps %p session %p\n", inode, session);
+       doutc(cl, "%p %llx.%llx session %p\n", inode, ceph_vinop(inode),
+             session);
  
        list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
                /*
  
                /* only flush each capsnap once */
                if (capsnap->cap_flush.tid > 0) {
-                       dout(" already flushed %p, skipping\n", capsnap);
+                       doutc(cl, "already flushed %p, skipping\n", capsnap);
                        continue;
                }
  
                int ret;
  
                if (!(cap && cap->session == session)) {
-                       dout("__flush_snaps %p auth cap %p not mds%d, "
-                            "stop\n", inode, cap, session->s_mds);
+                       doutc(cl, "%p %llx.%llx auth cap %p not mds%d, stop\n",
+                             inode, ceph_vinop(inode), cap, session->s_mds);
                        break;
                }
  
                refcount_inc(&capsnap->nref);
                spin_unlock(&ci->i_ceph_lock);
  
-               dout("__flush_snaps %p capsnap %p tid %llu %s\n",
-                    inode, capsnap, cf->tid, ceph_cap_string(capsnap->dirty));
+               doutc(cl, "%p %llx.%llx capsnap %p tid %llu %s\n", inode,
+                     ceph_vinop(inode), capsnap, cf->tid,
+                     ceph_cap_string(capsnap->dirty));
  
                ret = __send_flush_snap(inode, session, capsnap, cap->mseq,
                                        oldest_flush_tid);
                if (ret < 0) {
-                       pr_err("__flush_snaps: error sending cap flushsnap, "
-                              "ino (%llx.%llx) tid %llu follows %llu\n",
-                               ceph_vinop(inode), cf->tid, capsnap->follows);
+                       pr_err_client(cl, "error sending cap flushsnap, "
+                                     "ino (%llx.%llx) tid %llu follows %llu\n",
+                                     ceph_vinop(inode), cf->tid,
+                                     capsnap->follows);
                }
  
                ceph_put_cap_snap(capsnap);
@@@ -1685,28 -1729,29 +1729,29 @@@ void ceph_flush_snaps(struct ceph_inode
                      struct ceph_mds_session **psession)
  {
        struct inode *inode = &ci->netfs.inode;
-       struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_inode_to_fs_client(inode)->mdsc;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_mds_session *session = NULL;
        bool need_put = false;
        int mds;
  
-       dout("ceph_flush_snaps %p\n", inode);
+       doutc(cl, "%p %llx.%llx\n", inode, ceph_vinop(inode));
        if (psession)
                session = *psession;
  retry:
        spin_lock(&ci->i_ceph_lock);
        if (!(ci->i_ceph_flags & CEPH_I_FLUSH_SNAPS)) {
-               dout(" no capsnap needs flush, doing nothing\n");
+               doutc(cl, " no capsnap needs flush, doing nothing\n");
                goto out;
        }
        if (!ci->i_auth_cap) {
-               dout(" no auth cap (migrating?), doing nothing\n");
+               doutc(cl, " no auth cap (migrating?), doing nothing\n");
                goto out;
        }
  
        mds = ci->i_auth_cap->session->s_mds;
        if (session && session->s_mds != mds) {
-               dout(" oops, wrong session %p mutex\n", session);
+               doutc(cl, " oops, wrong session %p mutex\n", session);
                ceph_put_mds_session(session);
                session = NULL;
        }
@@@ -1750,23 -1795,25 +1795,25 @@@ int __ceph_mark_dirty_caps(struct ceph_
                           struct ceph_cap_flush **pcf)
  {
        struct ceph_mds_client *mdsc =
-               ceph_sb_to_client(ci->netfs.inode.i_sb)->mdsc;
+               ceph_sb_to_fs_client(ci->netfs.inode.i_sb)->mdsc;
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int was = ci->i_dirty_caps;
        int dirty = 0;
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
        if (!ci->i_auth_cap) {
-               pr_warn("__mark_dirty_caps %p %llx mask %s, "
-                       "but no auth cap (session was closed?)\n",
-                       inode, ceph_ino(inode), ceph_cap_string(mask));
+               pr_warn_client(cl, "%p %llx.%llx mask %s, "
+                              "but no auth cap (session was closed?)\n",
+                               inode, ceph_vinop(inode),
+                               ceph_cap_string(mask));
                return 0;
        }
  
-       dout("__mark_dirty_caps %p %s dirty %s -> %s\n", &ci->netfs.inode,
-            ceph_cap_string(mask), ceph_cap_string(was),
-            ceph_cap_string(was | mask));
+       doutc(cl, "%p %llx.%llx %s dirty %s -> %s\n", inode,
+             ceph_vinop(inode), ceph_cap_string(mask),
+             ceph_cap_string(was), ceph_cap_string(was | mask));
        ci->i_dirty_caps |= mask;
        if (was == 0) {
                struct ceph_mds_session *session = ci->i_auth_cap->session;
                        ci->i_head_snapc = ceph_get_snap_context(
                                ci->i_snap_realm->cached_context);
                }
-               dout(" inode %p now dirty snapc %p auth cap %p\n",
-                    &ci->netfs.inode, ci->i_head_snapc, ci->i_auth_cap);
+               doutc(cl, "%p %llx.%llx now dirty snapc %p auth cap %p\n",
+                     inode, ceph_vinop(inode), ci->i_head_snapc,
+                     ci->i_auth_cap);
                BUG_ON(!list_empty(&ci->i_dirty_item));
                spin_lock(&mdsc->cap_dirty_lock);
                list_add(&ci->i_dirty_item, &session->s_cap_dirty);
@@@ -1873,7 -1921,8 +1921,8 @@@ static u64 __mark_caps_flushing(struct 
                                struct ceph_mds_session *session, bool wake,
                                u64 *oldest_flush_tid)
  {
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_cap_flush *cf = NULL;
        int flushing;
        BUG_ON(!ci->i_prealloc_cap_flush);
  
        flushing = ci->i_dirty_caps;
-       dout("__mark_caps_flushing flushing %s, flushing_caps %s -> %s\n",
-            ceph_cap_string(flushing),
-            ceph_cap_string(ci->i_flushing_caps),
-            ceph_cap_string(ci->i_flushing_caps | flushing));
+       doutc(cl, "flushing %s, flushing_caps %s -> %s\n",
+             ceph_cap_string(flushing),
+             ceph_cap_string(ci->i_flushing_caps),
+             ceph_cap_string(ci->i_flushing_caps | flushing));
        ci->i_flushing_caps |= flushing;
        ci->i_dirty_caps = 0;
-       dout(" inode %p now !dirty\n", inode);
+       doutc(cl, "%p %llx.%llx now !dirty\n", inode, ceph_vinop(inode));
  
        swap(cf, ci->i_prealloc_cap_flush);
        cf->caps = flushing;
@@@ -1921,6 -1970,7 +1970,7 @@@ static int try_nonblocking_invalidate(s
        __releases(ci->i_ceph_lock)
        __acquires(ci->i_ceph_lock)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        u32 invalidating_gen = ci->i_rdcache_gen;
  
        if (inode->i_data.nrpages == 0 &&
            invalidating_gen == ci->i_rdcache_gen) {
                /* success. */
-               dout("try_nonblocking_invalidate %p success\n", inode);
+               doutc(cl, "%p %llx.%llx success\n", inode,
+                     ceph_vinop(inode));
                /* save any racing async invalidate some trouble */
                ci->i_rdcache_revoking = ci->i_rdcache_gen - 1;
                return 0;
        }
-       dout("try_nonblocking_invalidate %p failed\n", inode);
+       doutc(cl, "%p %llx.%llx failed\n", inode, ceph_vinop(inode));
        return -1;
  }
  
@@@ -1969,6 -2020,7 +2020,7 @@@ void ceph_check_caps(struct ceph_inode_
  {
        struct inode *inode = &ci->netfs.inode;
        struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_cap *cap;
        u64 flush_tid, oldest_flush_tid;
        int file_wanted, used, cap_used;
@@@ -2043,9 -2095,9 +2095,9 @@@ retry
                }
        }
  
-       dout("check_caps %llx.%llx file_want %s used %s dirty %s flushing %s"
-            " issued %s revoking %s retain %s %s%s%s\n", ceph_vinop(inode),
-            ceph_cap_string(file_wanted),
+       doutc(cl, "%p %llx.%llx file_want %s used %s dirty %s "
+             "flushing %s issued %s revoking %s retain %s %s%s%s\n",
+            inode, ceph_vinop(inode), ceph_cap_string(file_wanted),
             ceph_cap_string(used), ceph_cap_string(ci->i_dirty_caps),
             ceph_cap_string(ci->i_flushing_caps),
             ceph_cap_string(issued), ceph_cap_string(revoking),
            (revoking & (CEPH_CAP_FILE_CACHE|
                         CEPH_CAP_FILE_LAZYIO)) && /*  or revoking cache */
            !tried_invalidate) {
-               dout("check_caps trying to invalidate on %llx.%llx\n",
-                    ceph_vinop(inode));
+               doutc(cl, "trying to invalidate on %p %llx.%llx\n",
+                     inode, ceph_vinop(inode));
                if (try_nonblocking_invalidate(inode) < 0) {
-                       dout("check_caps queuing invalidate\n");
+                       doutc(cl, "queuing invalidate\n");
                        queue_invalidate = true;
                        ci->i_rdcache_revoking = ci->i_rdcache_gen;
                }
                        cap_used &= ~ci->i_auth_cap->issued;
  
                revoking = cap->implemented & ~cap->issued;
-               dout(" mds%d cap %p used %s issued %s implemented %s revoking %s\n",
-                    cap->mds, cap, ceph_cap_string(cap_used),
-                    ceph_cap_string(cap->issued),
-                    ceph_cap_string(cap->implemented),
-                    ceph_cap_string(revoking));
+               doutc(cl, " mds%d cap %p used %s issued %s implemented %s revoking %s\n",
+                     cap->mds, cap, ceph_cap_string(cap_used),
+                     ceph_cap_string(cap->issued),
+                     ceph_cap_string(cap->implemented),
+                     ceph_cap_string(revoking));
  
                if (cap == ci->i_auth_cap &&
                    (cap->issued & CEPH_CAP_FILE_WR)) {
                        /* request larger max_size from MDS? */
                        if (ci->i_wanted_max_size > ci->i_max_size &&
                            ci->i_wanted_max_size > ci->i_requested_max_size) {
-                               dout("requesting new max_size\n");
+                               doutc(cl, "requesting new max_size\n");
                                goto ack;
                        }
  
                        /* approaching file_max? */
                        if (__ceph_should_report_size(ci)) {
-                               dout("i_size approaching max_size\n");
+                               doutc(cl, "i_size approaching max_size\n");
                                goto ack;
                        }
                }
                /* flush anything dirty? */
                if (cap == ci->i_auth_cap) {
                        if ((flags & CHECK_CAPS_FLUSH) && ci->i_dirty_caps) {
-                               dout("flushing dirty caps\n");
+                               doutc(cl, "flushing dirty caps\n");
                                goto ack;
                        }
                        if (ci->i_ceph_flags & CEPH_I_FLUSH_SNAPS) {
-                               dout("flushing snap caps\n");
+                               doutc(cl, "flushing snap caps\n");
                                goto ack;
                        }
                }
                /* completed revocation? going down and there are no caps? */
                if (revoking) {
                        if ((revoking & cap_used) == 0) {
-                               dout("completed revocation of %s\n",
+                               doutc(cl, "completed revocation of %s\n",
                                      ceph_cap_string(cap->implemented & ~cap->issued));
                                goto ack;
                        }
@@@ -2232,7 -2284,7 +2284,7 @@@ ack
   */
  static int try_flush_caps(struct inode *inode, u64 *ptid)
  {
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
        struct ceph_inode_info *ci = ceph_inode(inode);
        int flushing = 0;
        u64 flush_tid = 0, oldest_flush_tid = 0;
@@@ -2310,7 -2362,8 +2362,8 @@@ static int caps_are_flushed(struct inod
   */
  static int flush_mdlog_and_wait_inode_unsafe_requests(struct inode *inode)
  {
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_mds_request *req1 = NULL, *req2 = NULL;
        int ret, err = 0;
                kfree(sessions);
        }
  
-       dout("%s %p wait on tid %llu %llu\n", __func__,
-            inode, req1 ? req1->r_tid : 0ULL, req2 ? req2->r_tid : 0ULL);
+       doutc(cl, "%p %llx.%llx wait on tid %llu %llu\n", inode,
+             ceph_vinop(inode), req1 ? req1->r_tid : 0ULL,
+             req2 ? req2->r_tid : 0ULL);
        if (req1) {
                ret = !wait_for_completion_timeout(&req1->r_safe_completion,
                                        ceph_timeout_jiffies(req1->r_timeout));
@@@ -2427,11 -2481,13 +2481,13 @@@ int ceph_fsync(struct file *file, loff_
  {
        struct inode *inode = file->f_mapping->host;
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        u64 flush_tid;
        int ret, err;
        int dirty;
  
-       dout("fsync %p%s\n", inode, datasync ? " datasync" : "");
+       doutc(cl, "%p %llx.%llx%s\n", inode, ceph_vinop(inode),
+             datasync ? " datasync" : "");
  
        ret = file_write_and_wait_range(file, start, end);
        if (datasync)
                goto out;
  
        dirty = try_flush_caps(inode, &flush_tid);
-       dout("fsync dirty caps are %s\n", ceph_cap_string(dirty));
+       doutc(cl, "dirty caps are %s\n", ceph_cap_string(dirty));
  
        err = flush_mdlog_and_wait_inode_unsafe_requests(inode);
  
        if (err < 0)
                ret = err;
  out:
-       dout("fsync %p%s result=%d\n", inode, datasync ? " datasync" : "", ret);
+       doutc(cl, "%p %llx.%llx%s result=%d\n", inode, ceph_vinop(inode),
+             datasync ? " datasync" : "", ret);
        return ret;
  }
  
  int ceph_write_inode(struct inode *inode, struct writeback_control *wbc)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        u64 flush_tid;
        int err = 0;
        int dirty;
        int wait = (wbc->sync_mode == WB_SYNC_ALL && !wbc->for_sync);
  
-       dout("write_inode %p wait=%d\n", inode, wait);
+       doutc(cl, "%p %llx.%llx wait=%d\n", inode, ceph_vinop(inode), wait);
        ceph_fscache_unpin_writeback(inode, wbc);
        if (wait) {
                err = ceph_wait_on_async_create(inode);
                                       caps_are_flushed(inode, flush_tid));
        } else {
                struct ceph_mds_client *mdsc =
-                       ceph_sb_to_client(inode->i_sb)->mdsc;
+                       ceph_sb_to_fs_client(inode->i_sb)->mdsc;
  
                spin_lock(&ci->i_ceph_lock);
                if (__ceph_caps_dirty(ci))
@@@ -2511,6 -2569,7 +2569,7 @@@ static void __kick_flushing_caps(struc
        __acquires(ci->i_ceph_lock)
  {
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_cap *cap;
        struct ceph_cap_flush *cf;
        int ret;
  
                cap = ci->i_auth_cap;
                if (!(cap && cap->session == session)) {
-                       pr_err("%p auth cap %p not mds%d ???\n",
-                              inode, cap, session->s_mds);
+                       pr_err_client(cl, "%p auth cap %p not mds%d ???\n",
+                                     inode, cap, session->s_mds);
                        break;
                }
  
                if (!cf->is_capsnap) {
                        struct cap_msg_args arg;
  
-                       dout("kick_flushing_caps %p cap %p tid %llu %s\n",
-                            inode, cap, cf->tid, ceph_cap_string(cf->caps));
+                       doutc(cl, "%p %llx.%llx cap %p tid %llu %s\n",
+                             inode, ceph_vinop(inode), cap, cf->tid,
+                             ceph_cap_string(cf->caps));
                        __prep_cap(&arg, cap, CEPH_CAP_OP_FLUSH,
                                         (cf->tid < last_snap_flush ?
                                          CEPH_CLIENT_CAPS_PENDING_CAPSNAP : 0),
                        struct ceph_cap_snap *capsnap =
                                        container_of(cf, struct ceph_cap_snap,
                                                    cap_flush);
-                       dout("kick_flushing_caps %p capsnap %p tid %llu %s\n",
-                            inode, capsnap, cf->tid,
-                            ceph_cap_string(capsnap->dirty));
+                       doutc(cl, "%p %llx.%llx capsnap %p tid %llu %s\n",
+                             inode, ceph_vinop(inode), capsnap, cf->tid,
+                             ceph_cap_string(capsnap->dirty));
  
                        refcount_inc(&capsnap->nref);
                        spin_unlock(&ci->i_ceph_lock);
                        ret = __send_flush_snap(inode, session, capsnap, cap->mseq,
                                                oldest_flush_tid);
                        if (ret < 0) {
-                               pr_err("kick_flushing_caps: error sending "
-                                       "cap flushsnap, ino (%llx.%llx) "
-                                       "tid %llu follows %llu\n",
-                                       ceph_vinop(inode), cf->tid,
-                                       capsnap->follows);
+                               pr_err_client(cl, "error sending cap flushsnap,"
+                                             " %p %llx.%llx tid %llu follows %llu\n",
+                                             inode, ceph_vinop(inode), cf->tid,
+                                             capsnap->follows);
                        }
  
                        ceph_put_cap_snap(capsnap);
  void ceph_early_kick_flushing_caps(struct ceph_mds_client *mdsc,
                                   struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_inode_info *ci;
        struct ceph_cap *cap;
        u64 oldest_flush_tid;
  
-       dout("early_kick_flushing_caps mds%d\n", session->s_mds);
+       doutc(cl, "mds%d\n", session->s_mds);
  
        spin_lock(&mdsc->cap_dirty_lock);
        oldest_flush_tid = __get_oldest_flush_tid(mdsc);
        spin_unlock(&mdsc->cap_dirty_lock);
  
        list_for_each_entry(ci, &session->s_cap_flushing, i_flushing_item) {
+               struct inode *inode = &ci->netfs.inode;
                spin_lock(&ci->i_ceph_lock);
                cap = ci->i_auth_cap;
                if (!(cap && cap->session == session)) {
-                       pr_err("%p auth cap %p not mds%d ???\n",
-                               &ci->netfs.inode, cap, session->s_mds);
+                       pr_err_client(cl, "%p %llx.%llx auth cap %p not mds%d ???\n",
+                                     inode, ceph_vinop(inode), cap,
+                                     session->s_mds);
                        spin_unlock(&ci->i_ceph_lock);
                        continue;
                }
  void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
                             struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_inode_info *ci;
        struct ceph_cap *cap;
        u64 oldest_flush_tid;
  
        lockdep_assert_held(&session->s_mutex);
  
-       dout("kick_flushing_caps mds%d\n", session->s_mds);
+       doutc(cl, "mds%d\n", session->s_mds);
  
        spin_lock(&mdsc->cap_dirty_lock);
        oldest_flush_tid = __get_oldest_flush_tid(mdsc);
        spin_unlock(&mdsc->cap_dirty_lock);
  
        list_for_each_entry(ci, &session->s_cap_flushing, i_flushing_item) {
+               struct inode *inode = &ci->netfs.inode;
                spin_lock(&ci->i_ceph_lock);
                cap = ci->i_auth_cap;
                if (!(cap && cap->session == session)) {
-                       pr_err("%p auth cap %p not mds%d ???\n",
-                               &ci->netfs.inode, cap, session->s_mds);
+                       pr_err_client(cl, "%p %llx.%llx auth cap %p not mds%d ???\n",
+                                     inode, ceph_vinop(inode), cap,
+                                     session->s_mds);
                        spin_unlock(&ci->i_ceph_lock);
                        continue;
                }
@@@ -2670,11 -2737,13 +2737,13 @@@ void ceph_kick_flushing_inode_caps(stru
  {
        struct ceph_mds_client *mdsc = session->s_mdsc;
        struct ceph_cap *cap = ci->i_auth_cap;
+       struct inode *inode = &ci->netfs.inode;
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       dout("%s %p flushing %s\n", __func__, &ci->netfs.inode,
-            ceph_cap_string(ci->i_flushing_caps));
+       doutc(mdsc->fsc->client, "%p %llx.%llx flushing %s\n",
+             inode, ceph_vinop(inode),
+             ceph_cap_string(ci->i_flushing_caps));
  
        if (!list_empty(&ci->i_cap_flush_list)) {
                u64 oldest_flush_tid;
  void ceph_take_cap_refs(struct ceph_inode_info *ci, int got,
                            bool snap_rwsem_locked)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        lockdep_assert_held(&ci->i_ceph_lock);
  
        if (got & CEPH_CAP_PIN)
        }
        if (got & CEPH_CAP_FILE_BUFFER) {
                if (ci->i_wb_ref == 0)
-                       ihold(&ci->netfs.inode);
+                       ihold(inode);
                ci->i_wb_ref++;
-               dout("%s %p wb %d -> %d (?)\n", __func__,
-                    &ci->netfs.inode, ci->i_wb_ref-1, ci->i_wb_ref);
+               doutc(cl, "%p %llx.%llx wb %d -> %d (?)\n", inode,
+                     ceph_vinop(inode), ci->i_wb_ref-1, ci->i_wb_ref);
        }
  }
  
@@@ -2746,20 -2818,23 +2818,23 @@@ static int try_get_cap_refs(struct inod
                            loff_t endoff, int flags, int *got)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_inode_to_fs_client(inode)->mdsc;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int ret = 0;
        int have, implemented;
        bool snap_rwsem_locked = false;
  
-       dout("get_cap_refs %p need %s want %s\n", inode,
-            ceph_cap_string(need), ceph_cap_string(want));
+       doutc(cl, "%p %llx.%llx need %s want %s\n", inode,
+             ceph_vinop(inode), ceph_cap_string(need),
+             ceph_cap_string(want));
  
  again:
        spin_lock(&ci->i_ceph_lock);
  
        if ((flags & CHECK_FILELOCK) &&
            (ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK)) {
-               dout("try_get_cap_refs %p error filelock\n", inode);
+               doutc(cl, "%p %llx.%llx error filelock\n", inode,
+                     ceph_vinop(inode));
                ret = -EIO;
                goto out_unlock;
        }
  
        if (have & need & CEPH_CAP_FILE_WR) {
                if (endoff >= 0 && endoff > (loff_t)ci->i_max_size) {
-                       dout("get_cap_refs %p endoff %llu > maxsize %llu\n",
-                            inode, endoff, ci->i_max_size);
+                       doutc(cl, "%p %llx.%llx endoff %llu > maxsize %llu\n",
+                             inode, ceph_vinop(inode), endoff, ci->i_max_size);
                        if (endoff > ci->i_requested_max_size)
                                ret = ci->i_auth_cap ? -EFBIG : -EUCLEAN;
                        goto out_unlock;
                 * can get a final snapshot value for size+mtime.
                 */
                if (__ceph_have_pending_cap_snap(ci)) {
-                       dout("get_cap_refs %p cap_snap_pending\n", inode);
+                       doutc(cl, "%p %llx.%llx cap_snap_pending\n", inode,
+                             ceph_vinop(inode));
                        goto out_unlock;
                }
        }
                int not = want & ~(have & need);
                int revoking = implemented & ~have;
                int exclude = revoking & not;
-               dout("get_cap_refs %p have %s but not %s (revoking %s)\n",
-                    inode, ceph_cap_string(have), ceph_cap_string(not),
-                    ceph_cap_string(revoking));
+               doutc(cl, "%p %llx.%llx have %s but not %s (revoking %s)\n",
+                     inode, ceph_vinop(inode), ceph_cap_string(have),
+                     ceph_cap_string(not), ceph_cap_string(revoking));
                if (!exclude || !(exclude & CEPH_CAP_FILE_BUFFER)) {
                        if (!snap_rwsem_locked &&
                            !ci->i_head_snapc &&
                        spin_unlock(&s->s_cap_lock);
                }
                if (session_readonly) {
-                       dout("get_cap_refs %p need %s but mds%d readonly\n",
-                            inode, ceph_cap_string(need), ci->i_auth_cap->mds);
+                       doutc(cl, "%p %llx.%llx need %s but mds%d readonly\n",
+                             inode, ceph_vinop(inode), ceph_cap_string(need),
+                             ci->i_auth_cap->mds);
                        ret = -EROFS;
                        goto out_unlock;
                }
  
                if (ceph_inode_is_shutdown(inode)) {
-                       dout("get_cap_refs %p inode is shutdown\n", inode);
+                       doutc(cl, "%p %llx.%llx inode is shutdown\n",
+                             inode, ceph_vinop(inode));
                        ret = -ESTALE;
                        goto out_unlock;
                }
                mds_wanted = __ceph_caps_mds_wanted(ci, false);
                if (need & ~mds_wanted) {
-                       dout("get_cap_refs %p need %s > mds_wanted %s\n",
-                            inode, ceph_cap_string(need),
-                            ceph_cap_string(mds_wanted));
+                       doutc(cl, "%p %llx.%llx need %s > mds_wanted %s\n",
+                             inode, ceph_vinop(inode), ceph_cap_string(need),
+                             ceph_cap_string(mds_wanted));
                        ret = -EUCLEAN;
                        goto out_unlock;
                }
  
-               dout("get_cap_refs %p have %s need %s\n", inode,
-                    ceph_cap_string(have), ceph_cap_string(need));
+               doutc(cl, "%p %llx.%llx have %s need %s\n", inode,
+                     ceph_vinop(inode), ceph_cap_string(have),
+                     ceph_cap_string(need));
        }
  out_unlock:
  
        else if (ret == 1)
                ceph_update_cap_hit(&mdsc->metric);
  
-       dout("get_cap_refs %p ret %d got %s\n", inode,
-            ret, ceph_cap_string(*got));
+       doutc(cl, "%p %llx.%llx ret %d got %s\n", inode,
+             ceph_vinop(inode), ret, ceph_cap_string(*got));
        return ret;
  }
  
  static void check_max_size(struct inode *inode, loff_t endoff)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int check = 0;
  
        /* do we need to explicitly request a larger max_size? */
        spin_lock(&ci->i_ceph_lock);
        if (endoff >= ci->i_max_size && endoff > ci->i_wanted_max_size) {
-               dout("write %p at large endoff %llu, req max_size\n",
-                    inode, endoff);
+               doutc(cl, "write %p %llx.%llx at large endoff %llu, req max_size\n",
+                     inode, ceph_vinop(inode), endoff);
                ci->i_wanted_max_size = endoff;
        }
        /* duplicate ceph_check_caps()'s logic */
@@@ -2964,7 -3044,7 +3044,7 @@@ int __ceph_get_caps(struct inode *inode
                    int want, loff_t endoff, int *got)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        int ret, _got, flags;
  
        ret = ceph_pool_perm_check(inode, need);
@@@ -3115,10 -3195,12 +3195,12 @@@ void ceph_get_cap_refs(struct ceph_inod
  static int ceph_try_drop_cap_snap(struct ceph_inode_info *ci,
                                  struct ceph_cap_snap *capsnap)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        if (!capsnap->need_flush &&
            !capsnap->writing && !capsnap->dirty_pages) {
-               dout("dropping cap_snap %p follows %llu\n",
-                    capsnap, capsnap->follows);
+               doutc(cl, "%p follows %llu\n", capsnap, capsnap->follows);
                BUG_ON(capsnap->cap_flush.tid > 0);
                ceph_put_snap_context(capsnap->context);
                if (!list_is_last(&capsnap->ci_item, &ci->i_cap_snaps))
@@@ -3150,6 -3232,7 +3232,7 @@@ static void __ceph_put_cap_refs(struct 
                                enum put_cap_refs_mode mode)
  {
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int last = 0, put = 0, flushsnaps = 0, wake = 0;
        bool check_flushsnaps = false;
  
                        put++;
                        check_flushsnaps = true;
                }
-               dout("put_cap_refs %p wb %d -> %d (?)\n",
-                    inode, ci->i_wb_ref+1, ci->i_wb_ref);
+               doutc(cl, "%p %llx.%llx wb %d -> %d (?)\n", inode,
+                     ceph_vinop(inode), ci->i_wb_ref+1, ci->i_wb_ref);
        }
        if (had & CEPH_CAP_FILE_WR) {
                if (--ci->i_wr_ref == 0) {
        }
        spin_unlock(&ci->i_ceph_lock);
  
-       dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had),
-            last ? " last" : "", put ? " put" : "");
+       doutc(cl, "%p %llx.%llx had %s%s%s\n", inode, ceph_vinop(inode),
+             ceph_cap_string(had), last ? " last" : "", put ? " put" : "");
  
        switch (mode) {
        case PUT_CAP_REFS_SYNC:
@@@ -3264,6 -3347,7 +3347,7 @@@ void ceph_put_wrbuffer_cap_refs(struct 
                                struct ceph_snap_context *snapc)
  {
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_cap_snap *capsnap = NULL, *iter;
        int put = 0;
        bool last = false;
                        ceph_put_snap_context(ci->i_head_snapc);
                        ci->i_head_snapc = NULL;
                }
-               dout("put_wrbuffer_cap_refs on %p head %d/%d -> %d/%d %s\n",
-                    inode,
-                    ci->i_wrbuffer_ref+nr, ci->i_wrbuffer_ref_head+nr,
-                    ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head,
-                    last ? " LAST" : "");
+               doutc(cl, "on %p %llx.%llx head %d/%d -> %d/%d %s\n",
+                     inode, ceph_vinop(inode), ci->i_wrbuffer_ref+nr,
+                     ci->i_wrbuffer_ref_head+nr, ci->i_wrbuffer_ref,
+                     ci->i_wrbuffer_ref_head, last ? " LAST" : "");
        } else {
                list_for_each_entry(iter, &ci->i_cap_snaps, ci_item) {
                        if (iter->context == snapc) {
                                }
                        }
                }
-               dout("put_wrbuffer_cap_refs on %p cap_snap %p "
-                    " snap %lld %d/%d -> %d/%d %s%s\n",
-                    inode, capsnap, capsnap->context->seq,
-                    ci->i_wrbuffer_ref+nr, capsnap->dirty_pages + nr,
-                    ci->i_wrbuffer_ref, capsnap->dirty_pages,
-                    last ? " (wrbuffer last)" : "",
-                    complete_capsnap ? " (complete capsnap)" : "");
+               doutc(cl, "%p %llx.%llx cap_snap %p snap %lld %d/%d -> %d/%d %s%s\n",
+                     inode, ceph_vinop(inode), capsnap, capsnap->context->seq,
+                     ci->i_wrbuffer_ref+nr, capsnap->dirty_pages + nr,
+                     ci->i_wrbuffer_ref, capsnap->dirty_pages,
+                     last ? " (wrbuffer last)" : "",
+                     complete_capsnap ? " (complete capsnap)" : "");
        }
  
  unlock:
   */
  static void invalidate_aliases(struct inode *inode)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct dentry *dn, *prev = NULL;
  
-       dout("invalidate_aliases inode %p\n", inode);
+       doutc(cl, "%p %llx.%llx\n", inode, ceph_vinop(inode));
        d_prune_aliases(inode);
        /*
         * For non-directory inode, d_find_alias() only returns
@@@ -3411,6 -3494,7 +3494,7 @@@ static void handle_cap_grant(struct ino
        __releases(ci->i_ceph_lock)
        __releases(session->s_mdsc->snap_rwsem)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        int seq = le32_to_cpu(grant->seq);
        int newcaps = le32_to_cpu(grant->caps);
        if (IS_ENCRYPTED(inode) && size)
                size = extra_info->fscrypt_file_size;
  
-       dout("handle_cap_grant inode %p cap %p mds%d seq %d %s\n",
-            inode, cap, session->s_mds, seq, ceph_cap_string(newcaps));
-       dout(" size %llu max_size %llu, i_size %llu\n", size, max_size,
-               i_size_read(inode));
+       doutc(cl, "%p %llx.%llx cap %p mds%d seq %d %s\n", inode,
+             ceph_vinop(inode), cap, session->s_mds, seq,
+             ceph_cap_string(newcaps));
+       doutc(cl, " size %llu max_size %llu, i_size %llu\n", size,
+             max_size, i_size_read(inode));
  
  
        /*
                inode->i_uid = make_kuid(&init_user_ns, le32_to_cpu(grant->uid));
                inode->i_gid = make_kgid(&init_user_ns, le32_to_cpu(grant->gid));
                ci->i_btime = extra_info->btime;
-               dout("%p mode 0%o uid.gid %d.%d\n", inode, inode->i_mode,
-                    from_kuid(&init_user_ns, inode->i_uid),
-                    from_kgid(&init_user_ns, inode->i_gid));
+               doutc(cl, "%p %llx.%llx mode 0%o uid.gid %d.%d\n", inode,
+                     ceph_vinop(inode), inode->i_mode,
+                     from_kuid(&init_user_ns, inode->i_uid),
+                     from_kgid(&init_user_ns, inode->i_gid));
  #if IS_ENABLED(CONFIG_FS_ENCRYPTION)
                if (ci->fscrypt_auth_len != extra_info->fscrypt_auth_len ||
                    memcmp(ci->fscrypt_auth, extra_info->fscrypt_auth,
                           ci->fscrypt_auth_len))
-                       pr_warn_ratelimited("%s: cap grant attempt to change fscrypt_auth on non-I_NEW inode (old len %d new len %d)\n",
-                               __func__, ci->fscrypt_auth_len,
+                       pr_warn_ratelimited_client(cl,
+                               "cap grant attempt to change fscrypt_auth on non-I_NEW inode (old len %d new len %d)\n",
+                               ci->fscrypt_auth_len,
                                extra_info->fscrypt_auth_len);
  #endif
        }
                u64 version = le64_to_cpu(grant->xattr_version);
  
                if (version > ci->i_xattrs.version) {
-                       dout(" got new xattrs v%llu on %p len %d\n",
-                            version, inode, len);
+                       doutc(cl, " got new xattrs v%llu on %p %llx.%llx len %d\n",
+                             version, inode, ceph_vinop(inode), len);
                        if (ci->i_xattrs.blob)
                                ceph_buffer_put(ci->i_xattrs.blob);
                        ci->i_xattrs.blob = ceph_buffer_get(xattr_buf);
  
        if (ci->i_auth_cap == cap && (newcaps & CEPH_CAP_ANY_FILE_WR)) {
                if (max_size != ci->i_max_size) {
-                       dout("max_size %lld -> %llu\n",
-                            ci->i_max_size, max_size);
+                       doutc(cl, "max_size %lld -> %llu\n", ci->i_max_size,
+                             max_size);
                        ci->i_max_size = max_size;
                        if (max_size >= ci->i_wanted_max_size) {
                                ci->i_wanted_max_size = 0;  /* reset */
        wanted = __ceph_caps_wanted(ci);
        used = __ceph_caps_used(ci);
        dirty = __ceph_caps_dirty(ci);
-       dout(" my wanted = %s, used = %s, dirty %s\n",
-            ceph_cap_string(wanted),
-            ceph_cap_string(used),
-            ceph_cap_string(dirty));
+       doutc(cl, " my wanted = %s, used = %s, dirty %s\n",
+             ceph_cap_string(wanted), ceph_cap_string(used),
+             ceph_cap_string(dirty));
  
        if ((was_stale || le32_to_cpu(grant->op) == CEPH_CAP_OP_IMPORT) &&
            (wanted & ~(cap->mds_wanted | newcaps))) {
        if (cap->issued & ~newcaps) {
                int revoking = cap->issued & ~newcaps;
  
-               dout("revocation: %s -> %s (revoking %s)\n",
-                    ceph_cap_string(cap->issued),
-                    ceph_cap_string(newcaps),
-                    ceph_cap_string(revoking));
+               doutc(cl, "revocation: %s -> %s (revoking %s)\n",
+                     ceph_cap_string(cap->issued), ceph_cap_string(newcaps),
+                     ceph_cap_string(revoking));
                if (S_ISREG(inode->i_mode) &&
                    (revoking & used & CEPH_CAP_FILE_BUFFER))
                        writeback = true;  /* initiate writeback; will delay ack */
                cap->issued = newcaps;
                cap->implemented |= newcaps;
        } else if (cap->issued == newcaps) {
-               dout("caps unchanged: %s -> %s\n",
-                    ceph_cap_string(cap->issued), ceph_cap_string(newcaps));
+               doutc(cl, "caps unchanged: %s -> %s\n",
+                     ceph_cap_string(cap->issued),
+                     ceph_cap_string(newcaps));
        } else {
-               dout("grant: %s -> %s\n", ceph_cap_string(cap->issued),
-                    ceph_cap_string(newcaps));
+               doutc(cl, "grant: %s -> %s\n", ceph_cap_string(cap->issued),
+                     ceph_cap_string(newcaps));
                /* non-auth MDS is revoking the newly grant caps ? */
                if (cap == ci->i_auth_cap &&
                    __ceph_caps_revoking_other(ci, cap, newcaps))
@@@ -3727,7 -3813,8 +3813,8 @@@ static void handle_cap_flush_ack(struc
        __releases(ci->i_ceph_lock)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_cap_flush *cf, *tmp_cf;
        LIST_HEAD(to_remove);
        unsigned seq = le32_to_cpu(m->seq);
                }
        }
  
-       dout("handle_cap_flush_ack inode %p mds%d seq %d on %s cleaned %s,"
-            " flushing %s -> %s\n",
-            inode, session->s_mds, seq, ceph_cap_string(dirty),
-            ceph_cap_string(cleaned), ceph_cap_string(ci->i_flushing_caps),
-            ceph_cap_string(ci->i_flushing_caps & ~cleaned));
+       doutc(cl, "%p %llx.%llx mds%d seq %d on %s cleaned %s, flushing %s -> %s\n",
+             inode, ceph_vinop(inode), session->s_mds, seq,
+             ceph_cap_string(dirty), ceph_cap_string(cleaned),
+             ceph_cap_string(ci->i_flushing_caps),
+             ceph_cap_string(ci->i_flushing_caps & ~cleaned));
  
        if (list_empty(&to_remove) && !cleaned)
                goto out;
                if (list_empty(&ci->i_cap_flush_list)) {
                        list_del_init(&ci->i_flushing_item);
                        if (!list_empty(&session->s_cap_flushing)) {
-                               dout(" mds%d still flushing cap on %p\n",
-                                    session->s_mds,
-                                    &list_first_entry(&session->s_cap_flushing,
-                                               struct ceph_inode_info,
-                                               i_flushing_item)->netfs.inode);
+                               struct inode *inode =
+                                           &list_first_entry(&session->s_cap_flushing,
+                                                             struct ceph_inode_info,
+                                                             i_flushing_item)->netfs.inode;
+                               doutc(cl, " mds%d still flushing cap on %p %llx.%llx\n",
+                                     session->s_mds, inode, ceph_vinop(inode));
                        }
                }
                mdsc->num_cap_flushing--;
-               dout(" inode %p now !flushing\n", inode);
+               doutc(cl, " %p %llx.%llx now !flushing\n", inode,
+                     ceph_vinop(inode));
  
                if (ci->i_dirty_caps == 0) {
-                       dout(" inode %p now clean\n", inode);
+                       doutc(cl, " %p %llx.%llx now clean\n", inode,
+                             ceph_vinop(inode));
                        BUG_ON(!list_empty(&ci->i_dirty_item));
                        drop = true;
                        if (ci->i_wr_ref == 0 &&
@@@ -3833,12 -3923,14 +3923,14 @@@ void __ceph_remove_capsnap(struct inod
                           bool *wake_ci, bool *wake_mdsc)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        bool ret;
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       dout("removing capsnap %p, inode %p ci %p\n", capsnap, inode, ci);
+       doutc(cl, "removing capsnap %p, %p %llx.%llx ci %p\n", capsnap,
+             inode, ceph_vinop(inode), ci);
  
        list_del_init(&capsnap->ci_item);
        ret = __detach_cap_flush_from_ci(ci, &capsnap->cap_flush);
@@@ -3877,29 -3969,31 +3969,31 @@@ static void handle_cap_flushsnap_ack(st
                                     struct ceph_mds_session *session)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        u64 follows = le64_to_cpu(m->snap_follows);
        struct ceph_cap_snap *capsnap = NULL, *iter;
        bool wake_ci = false;
        bool wake_mdsc = false;
  
-       dout("handle_cap_flushsnap_ack inode %p ci %p mds%d follows %lld\n",
-            inode, ci, session->s_mds, follows);
+       doutc(cl, "%p %llx.%llx ci %p mds%d follows %lld\n", inode,
+             ceph_vinop(inode), ci, session->s_mds, follows);
  
        spin_lock(&ci->i_ceph_lock);
        list_for_each_entry(iter, &ci->i_cap_snaps, ci_item) {
                if (iter->follows == follows) {
                        if (iter->cap_flush.tid != flush_tid) {
-                               dout(" cap_snap %p follows %lld tid %lld !="
-                                    " %lld\n", iter, follows,
-                                    flush_tid, iter->cap_flush.tid);
+                               doutc(cl, " cap_snap %p follows %lld "
+                                     "tid %lld != %lld\n", iter,
+                                     follows, flush_tid,
+                                     iter->cap_flush.tid);
                                break;
                        }
                        capsnap = iter;
                        break;
                } else {
-                       dout(" skipping cap_snap %p follows %lld\n",
-                            iter, iter->follows);
+                       doutc(cl, " skipping cap_snap %p follows %lld\n",
+                             iter, iter->follows);
                }
        }
        if (capsnap)
@@@ -3928,6 -4022,7 +4022,7 @@@ static bool handle_cap_trunc(struct ino
                             struct cap_extra_info *extra_info)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int mds = session->s_mds;
        int seq = le32_to_cpu(trunc->seq);
        u32 truncate_seq = le32_to_cpu(trunc->truncate_seq);
        if (IS_ENCRYPTED(inode) && size)
                size = extra_info->fscrypt_file_size;
  
-       dout("%s inode %p mds%d seq %d to %lld truncate seq %d\n",
-            __func__, inode, mds, seq, truncate_size, truncate_seq);
+       doutc(cl, "%p %llx.%llx mds%d seq %d to %lld truncate seq %d\n",
+             inode, ceph_vinop(inode), mds, seq, truncate_size, truncate_seq);
        queue_trunc = ceph_fill_file_size(inode, issued,
                                          truncate_seq, truncate_size, size);
        return queue_trunc;
@@@ -3969,7 -4064,8 +4064,8 @@@ static void handle_cap_export(struct in
                              struct ceph_mds_cap_peer *ph,
                              struct ceph_mds_session *session)
  {
-       struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_inode_to_fs_client(inode)->mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_session *tsession = NULL;
        struct ceph_cap *cap, *tcap, *new_cap = NULL;
        struct ceph_inode_info *ci = ceph_inode(inode);
                target = -1;
        }
  
-       dout("handle_cap_export inode %p ci %p mds%d mseq %d target %d\n",
-            inode, ci, mds, mseq, target);
+       doutc(cl, "%p %llx.%llx ci %p mds%d mseq %d target %d\n",
+             inode, ceph_vinop(inode), ci, mds, mseq, target);
  retry:
        down_read(&mdsc->snap_rwsem);
        spin_lock(&ci->i_ceph_lock);
                goto out_unlock;
  
        if (target < 0) {
-               ceph_remove_cap(cap, false);
+               ceph_remove_cap(mdsc, cap, false);
                goto out_unlock;
        }
  
  
        issued = cap->issued;
        if (issued != cap->implemented)
-               pr_err_ratelimited("handle_cap_export: issued != implemented: "
-                               "ino (%llx.%llx) mds%d seq %d mseq %d "
-                               "issued %s implemented %s\n",
-                               ceph_vinop(inode), mds, cap->seq, cap->mseq,
-                               ceph_cap_string(issued),
-                               ceph_cap_string(cap->implemented));
+               pr_err_ratelimited_client(cl, "issued != implemented: "
+                                         "%p %llx.%llx mds%d seq %d mseq %d"
+                                         " issued %s implemented %s\n",
+                                         inode, ceph_vinop(inode), mds,
+                                         cap->seq, cap->mseq,
+                                         ceph_cap_string(issued),
+                                         ceph_cap_string(cap->implemented));
  
  
        tcap = __get_cap_for_mds(ci, target);
                /* already have caps from the target */
                if (tcap->cap_id == t_cap_id &&
                    ceph_seq_cmp(tcap->seq, t_seq) < 0) {
-                       dout(" updating import cap %p mds%d\n", tcap, target);
+                       doutc(cl, " updating import cap %p mds%d\n", tcap,
+                             target);
                        tcap->cap_id = t_cap_id;
                        tcap->seq = t_seq - 1;
                        tcap->issue_seq = t_seq - 1;
                                change_auth_cap_ses(ci, tcap->session);
                        }
                }
-               ceph_remove_cap(cap, false);
+               ceph_remove_cap(mdsc, cap, false);
                goto out_unlock;
        } else if (tsession) {
                /* add placeholder for the export tagert */
                        spin_unlock(&mdsc->cap_dirty_lock);
                }
  
-               ceph_remove_cap(cap, false);
+               ceph_remove_cap(mdsc, cap, false);
                goto out_unlock;
        }
  
@@@ -4104,6 -4202,7 +4202,7 @@@ static void handle_cap_import(struct ce
                              struct ceph_cap **target_cap, int *old_issued)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_cap *cap, *ocap, *new_cap = NULL;
        int mds = session->s_mds;
        int issued;
                peer = -1;
        }
  
-       dout("handle_cap_import inode %p ci %p mds%d mseq %d peer %d\n",
-            inode, ci, mds, mseq, peer);
+       doutc(cl, "%p %llx.%llx ci %p mds%d mseq %d peer %d\n",
+             inode, ceph_vinop(inode), ci, mds, mseq, peer);
  retry:
        cap = __get_cap_for_mds(ci, mds);
        if (!cap) {
  
        ocap = peer >= 0 ? __get_cap_for_mds(ci, peer) : NULL;
        if (ocap && ocap->cap_id == p_cap_id) {
-               dout(" remove export cap %p mds%d flags %d\n",
-                    ocap, peer, ph->flags);
+               doutc(cl, " remove export cap %p mds%d flags %d\n",
+                     ocap, peer, ph->flags);
                if ((ph->flags & CEPH_CAP_FLAG_AUTH) &&
                    (ocap->seq != le32_to_cpu(ph->seq) ||
                     ocap->mseq != le32_to_cpu(ph->mseq))) {
-                       pr_err_ratelimited("handle_cap_import: "
-                                       "mismatched seq/mseq: ino (%llx.%llx) "
-                                       "mds%d seq %d mseq %d importer mds%d "
-                                       "has peer seq %d mseq %d\n",
-                                       ceph_vinop(inode), peer, ocap->seq,
-                                       ocap->mseq, mds, le32_to_cpu(ph->seq),
+                       pr_err_ratelimited_client(cl, "mismatched seq/mseq: "
+                                       "%p %llx.%llx mds%d seq %d mseq %d"
+                                       " importer mds%d has peer seq %d mseq %d\n",
+                                       inode, ceph_vinop(inode), peer,
+                                       ocap->seq, ocap->mseq, mds,
+                                       le32_to_cpu(ph->seq),
                                        le32_to_cpu(ph->mseq));
                }
-               ceph_remove_cap(ocap, (ph->flags & CEPH_CAP_FLAG_RELEASE));
+               ceph_remove_cap(mdsc, ocap, (ph->flags & CEPH_CAP_FLAG_RELEASE));
        }
  
        *old_issued = issued;
@@@ -4227,6 -4326,7 +4326,7 @@@ void ceph_handle_caps(struct ceph_mds_s
                      struct ceph_msg *msg)
  {
        struct ceph_mds_client *mdsc = session->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct inode *inode;
        struct ceph_inode_info *ci;
        struct ceph_cap *cap;
        bool close_sessions = false;
        bool do_cap_release = false;
  
-       dout("handle_caps from mds%d\n", session->s_mds);
+       doutc(cl, "from mds%d\n", session->s_mds);
  
        if (!ceph_inc_mds_stopping_blocker(mdsc, session))
                return;
  
        /* lookup ino */
        inode = ceph_find_inode(mdsc->fsc->sb, vino);
-       dout(" op %s ino %llx.%llx inode %p\n", ceph_cap_op_name(op), vino.ino,
-            vino.snap, inode);
+       doutc(cl, " op %s ino %llx.%llx inode %p\n", ceph_cap_op_name(op),
+             vino.ino, vino.snap, inode);
  
        mutex_lock(&session->s_mutex);
-       dout(" mds%d seq %lld cap seq %u\n", session->s_mds, session->s_seq,
-            (unsigned)seq);
+       doutc(cl, " mds%d seq %lld cap seq %u\n", session->s_mds,
+             session->s_seq, (unsigned)seq);
  
        if (!inode) {
-               dout(" i don't have ino %llx\n", vino.ino);
+               doutc(cl, " i don't have ino %llx\n", vino.ino);
  
                switch (op) {
                case CEPH_CAP_OP_IMPORT:
        spin_lock(&ci->i_ceph_lock);
        cap = __get_cap_for_mds(ceph_inode(inode), session->s_mds);
        if (!cap) {
-               dout(" no cap on %p ino %llx.%llx from mds%d\n",
-                    inode, ceph_ino(inode), ceph_snap(inode),
-                    session->s_mds);
+               doutc(cl, " no cap on %p ino %llx.%llx from mds%d\n",
+                     inode, ceph_ino(inode), ceph_snap(inode),
+                     session->s_mds);
                spin_unlock(&ci->i_ceph_lock);
                switch (op) {
                case CEPH_CAP_OP_REVOKE:
  
        default:
                spin_unlock(&ci->i_ceph_lock);
-               pr_err("ceph_handle_caps: unknown cap op %d %s\n", op,
-                      ceph_cap_op_name(op));
+               pr_err_client(cl, "unknown cap op %d %s\n", op,
+                             ceph_cap_op_name(op));
        }
  
  done:
@@@ -4492,7 -4592,7 +4592,7 @@@ flush_cap_releases
        goto done;
  
  bad:
-       pr_err("ceph_handle_caps: corrupt message\n");
+       pr_err_client(cl, "corrupt message\n");
        ceph_msg_dump(msg);
        goto out;
  }
   */
  unsigned long ceph_check_delayed_caps(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct inode *inode;
        struct ceph_inode_info *ci;
        struct ceph_mount_options *opt = mdsc->fsc->mount_options;
        unsigned long loop_start = jiffies;
        unsigned long delay = 0;
  
-       dout("check_delayed_caps\n");
+       doutc(cl, "begin\n");
        spin_lock(&mdsc->cap_delay_lock);
        while (!list_empty(&mdsc->cap_delay_list)) {
                ci = list_first_entry(&mdsc->cap_delay_list,
                                      struct ceph_inode_info,
                                      i_cap_delay_list);
                if (time_before(loop_start, ci->i_hold_caps_max - delay_max)) {
-                       dout("%s caps added recently.  Exiting loop", __func__);
+                       doutc(cl, "caps added recently.  Exiting loop");
                        delay = ci->i_hold_caps_max;
                        break;
                }
                inode = igrab(&ci->netfs.inode);
                if (inode) {
                        spin_unlock(&mdsc->cap_delay_lock);
-                       dout("check_delayed_caps on %p\n", inode);
+                       doutc(cl, "on %p %llx.%llx\n", inode,
+                             ceph_vinop(inode));
                        ceph_check_caps(ci, 0);
                        iput(inode);
                        spin_lock(&mdsc->cap_delay_lock);
                }
        }
        spin_unlock(&mdsc->cap_delay_lock);
+       doutc(cl, "done\n");
  
        return delay;
  }
  static void flush_dirty_session_caps(struct ceph_mds_session *s)
  {
        struct ceph_mds_client *mdsc = s->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_inode_info *ci;
        struct inode *inode;
  
-       dout("flush_dirty_caps\n");
+       doutc(cl, "begin\n");
        spin_lock(&mdsc->cap_dirty_lock);
        while (!list_empty(&s->s_cap_dirty)) {
                ci = list_first_entry(&s->s_cap_dirty, struct ceph_inode_info,
                                      i_dirty_item);
                inode = &ci->netfs.inode;
                ihold(inode);
-               dout("flush_dirty_caps %llx.%llx\n", ceph_vinop(inode));
+               doutc(cl, "%p %llx.%llx\n", inode, ceph_vinop(inode));
                spin_unlock(&mdsc->cap_dirty_lock);
                ceph_wait_on_async_create(inode);
                ceph_check_caps(ci, CHECK_CAPS_FLUSH);
                spin_lock(&mdsc->cap_dirty_lock);
        }
        spin_unlock(&mdsc->cap_dirty_lock);
-       dout("flush_dirty_caps done\n");
+       doutc(cl, "done\n");
  }
  
  void ceph_flush_dirty_caps(struct ceph_mds_client *mdsc)
@@@ -4672,7 -4776,7 +4776,7 @@@ int ceph_drop_caps_for_unlink(struct in
  
                if (__ceph_caps_dirty(ci)) {
                        struct ceph_mds_client *mdsc =
-                               ceph_inode_to_client(inode)->mdsc;
+                               ceph_inode_to_fs_client(inode)->mdsc;
                        __cap_delay_requeue_front(mdsc, ci);
                }
        }
@@@ -4692,6 -4796,7 +4796,7 @@@ int ceph_encode_inode_release(void **p
                              int mds, int drop, int unless, int force)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_cap *cap;
        struct ceph_mds_request_release *rel = *p;
        int used, dirty;
        used = __ceph_caps_used(ci);
        dirty = __ceph_caps_dirty(ci);
  
-       dout("encode_inode_release %p mds%d used|dirty %s drop %s unless %s\n",
-            inode, mds, ceph_cap_string(used|dirty), ceph_cap_string(drop),
-            ceph_cap_string(unless));
+       doutc(cl, "%p %llx.%llx mds%d used|dirty %s drop %s unless %s\n",
+             inode, ceph_vinop(inode), mds, ceph_cap_string(used|dirty),
+             ceph_cap_string(drop), ceph_cap_string(unless));
  
        /* only drop unused, clean caps */
        drop &= ~(used | dirty);
                if (force || (cap->issued & drop)) {
                        if (cap->issued & drop) {
                                int wanted = __ceph_caps_wanted(ci);
-                               dout("encode_inode_release %p cap %p "
-                                    "%s -> %s, wanted %s -> %s\n", inode, cap,
-                                    ceph_cap_string(cap->issued),
-                                    ceph_cap_string(cap->issued & ~drop),
-                                    ceph_cap_string(cap->mds_wanted),
-                                    ceph_cap_string(wanted));
+                               doutc(cl, "%p %llx.%llx cap %p %s -> %s, "
+                                     "wanted %s -> %s\n", inode,
+                                     ceph_vinop(inode), cap,
+                                     ceph_cap_string(cap->issued),
+                                     ceph_cap_string(cap->issued & ~drop),
+                                     ceph_cap_string(cap->mds_wanted),
+                                     ceph_cap_string(wanted));
  
                                cap->issued &= ~drop;
                                cap->implemented &= ~drop;
                                    !(wanted & CEPH_CAP_ANY_FILE_WR))
                                        ci->i_requested_max_size = 0;
                        } else {
-                               dout("encode_inode_release %p cap %p %s"
-                                    " (force)\n", inode, cap,
-                                    ceph_cap_string(cap->issued));
+                               doutc(cl, "%p %llx.%llx cap %p %s (force)\n",
+                                     inode, ceph_vinop(inode), cap,
+                                     ceph_cap_string(cap->issued));
                        }
  
                        rel->ino = cpu_to_le64(ceph_ino(inode));
                        *p += sizeof(*rel);
                        ret = 1;
                } else {
-                       dout("encode_inode_release %p cap %p %s (noop)\n",
-                            inode, cap, ceph_cap_string(cap->issued));
+                       doutc(cl, "%p %llx.%llx cap %p %s (noop)\n",
+                             inode, ceph_vinop(inode), cap,
+                             ceph_cap_string(cap->issued));
                }
        }
        spin_unlock(&ci->i_ceph_lock);
@@@ -4783,6 -4890,7 +4890,7 @@@ int ceph_encode_dentry_release(void **p
        struct dentry *parent = NULL;
        struct ceph_mds_request_release *rel = *p;
        struct ceph_dentry_info *di = ceph_dentry(dentry);
+       struct ceph_client *cl;
        int force = 0;
        int ret;
  
        ret = ceph_encode_inode_release(p, dir, mds, drop, unless, force);
        dput(parent);
  
+       cl = ceph_inode_to_client(dir);
        spin_lock(&dentry->d_lock);
        if (ret && di->lease_session && di->lease_session->s_mds == mds) {
-               dout("encode_dentry_release %p mds%d seq %d\n",
-                    dentry, mds, (int)di->lease_seq);
+               doutc(cl, "%p mds%d seq %d\n",  dentry, mds,
+                     (int)di->lease_seq);
                rel->dname_seq = cpu_to_le32(di->lease_seq);
                __ceph_mdsc_drop_dentry_lease(dentry);
                spin_unlock(&dentry->d_lock);
  static int remove_capsnaps(struct ceph_mds_client *mdsc, struct inode *inode)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_cap_snap *capsnap;
        int capsnap_release = 0;
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       dout("removing capsnaps, ci is %p, inode is %p\n", ci, inode);
+       doutc(cl, "removing capsnaps, ci is %p, %p %llx.%llx\n",
+             ci, inode, ceph_vinop(inode));
  
        while (!list_empty(&ci->i_cap_snaps)) {
                capsnap = list_first_entry(&ci->i_cap_snaps,
  
  int ceph_purge_inode_cap(struct inode *inode, struct ceph_cap *cap, bool *invalidate)
  {
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        struct ceph_mds_client *mdsc = fsc->mdsc;
+       struct ceph_client *cl = fsc->client;
        struct ceph_inode_info *ci = ceph_inode(inode);
        bool is_auth;
        bool dirty_dropped = false;
  
        lockdep_assert_held(&ci->i_ceph_lock);
  
-       dout("removing cap %p, ci is %p, inode is %p\n",
-            cap, ci, &ci->netfs.inode);
+       doutc(cl, "removing cap %p, ci is %p, %p %llx.%llx\n",
+             cap, ci, inode, ceph_vinop(inode));
  
        is_auth = (cap == ci->i_auth_cap);
        __ceph_remove_cap(cap, false);
                }
  
                if (!list_empty(&ci->i_dirty_item)) {
-                       pr_warn_ratelimited(
-                               " dropping dirty %s state for %p %lld\n",
+                       pr_warn_ratelimited_client(cl,
+                               " dropping dirty %s state for %p %llx.%llx\n",
                                ceph_cap_string(ci->i_dirty_caps),
-                               inode, ceph_ino(inode));
+                               inode, ceph_vinop(inode));
                        ci->i_dirty_caps = 0;
                        list_del_init(&ci->i_dirty_item);
                        dirty_dropped = true;
                }
                if (!list_empty(&ci->i_flushing_item)) {
-                       pr_warn_ratelimited(
-                               " dropping dirty+flushing %s state for %p %lld\n",
+                       pr_warn_ratelimited_client(cl,
+                               " dropping dirty+flushing %s state for %p %llx.%llx\n",
                                ceph_cap_string(ci->i_flushing_caps),
-                               inode, ceph_ino(inode));
+                               inode, ceph_vinop(inode));
                        ci->i_flushing_caps = 0;
                        list_del_init(&ci->i_flushing_item);
                        mdsc->num_cap_flushing--;
                if (atomic_read(&ci->i_filelock_ref) > 0) {
                        /* make further file lock syscall return -EIO */
                        ci->i_ceph_flags |= CEPH_I_ERROR_FILELOCK;
-                       pr_warn_ratelimited(" dropping file locks for %p %lld\n",
-                                           inode, ceph_ino(inode));
+                       pr_warn_ratelimited_client(cl,
+                               " dropping file locks for %p %llx.%llx\n",
+                               inode, ceph_vinop(inode));
                }
  
                if (!ci->i_dirty_caps && ci->i_prealloc_cap_flush) {
diff --combined fs/ceph/crypto.c
index e3b1c3fab4127f94d8d4177ad0f431afebff40cf,52b1219699aafe765e9ac89ffd119dee973db991..3b3c4d8d401ece05205609eddeb4b4a230238300
@@@ -113,7 -113,7 +113,7 @@@ static int ceph_crypt_set_context(struc
  
        cia.fscrypt_auth = cfa;
  
-       ret = __ceph_setattr(inode, &attr, &cia);
+       ret = __ceph_setattr(&nop_mnt_idmap, inode, &attr, &cia);
        if (ret == 0)
                inode_set_flags(inode, S_ENCRYPTED, S_ENCRYPTED);
        kfree(cia.fscrypt_auth);
@@@ -129,11 -129,10 +129,11 @@@ static bool ceph_crypt_empty_dir(struc
  
  static const union fscrypt_policy *ceph_get_dummy_policy(struct super_block *sb)
  {
-       return ceph_sb_to_client(sb)->fsc_dummy_enc_policy.policy;
+       return ceph_sb_to_fs_client(sb)->fsc_dummy_enc_policy.policy;
  }
  
  static struct fscrypt_operations ceph_fscrypt_ops = {
 +      .needs_bounce_pages     = 1,
        .get_context            = ceph_crypt_get_context,
        .set_context            = ceph_crypt_set_context,
        .get_dummy_policy       = ceph_get_dummy_policy,
@@@ -212,6 -211,7 +212,7 @@@ void ceph_fscrypt_as_ctx_to_req(struct 
  static struct inode *parse_longname(const struct inode *parent,
                                    const char *name, int *name_len)
  {
+       struct ceph_client *cl = ceph_inode_to_client(parent);
        struct inode *dir = NULL;
        struct ceph_vino vino = { .snap = CEPH_NOSNAP };
        char *inode_number;
        name++;
        name_end = strrchr(name, '_');
        if (!name_end) {
-               dout("Failed to parse long snapshot name: %s\n", name);
+               doutc(cl, "failed to parse long snapshot name: %s\n", name);
                return ERR_PTR(-EIO);
        }
        *name_len = (name_end - name);
        if (*name_len <= 0) {
-               pr_err("Failed to parse long snapshot name\n");
+               pr_err_client(cl, "failed to parse long snapshot name\n");
                return ERR_PTR(-EIO);
        }
  
                return ERR_PTR(-ENOMEM);
        ret = kstrtou64(inode_number, 10, &vino.ino);
        if (ret) {
-               dout("Failed to parse inode number: %s\n", name);
+               doutc(cl, "failed to parse inode number: %s\n", name);
                dir = ERR_PTR(ret);
                goto out;
        }
                /* This can happen if we're not mounting cephfs on the root */
                dir = ceph_get_inode(parent->i_sb, vino, NULL);
                if (IS_ERR(dir))
-                       dout("Can't find inode %s (%s)\n", inode_number, name);
+                       doutc(cl, "can't find inode %s (%s)\n", inode_number, name);
        }
  
  out:
  int ceph_encode_encrypted_dname(struct inode *parent, struct qstr *d_name,
                                char *buf)
  {
+       struct ceph_client *cl = ceph_inode_to_client(parent);
        struct inode *dir = parent;
        struct qstr iname;
        u32 len;
  
        /* base64 encode the encrypted name */
        elen = ceph_base64_encode(cryptbuf, len, buf);
-       dout("base64-encoded ciphertext name = %.*s\n", elen, buf);
+       doutc(cl, "base64-encoded ciphertext name = %.*s\n", elen, buf);
  
        /* To understand the 240 limit, see CEPH_NOHASH_NAME_MAX comments */
        WARN_ON(elen > 240);
@@@ -505,7 -506,10 +507,10 @@@ int ceph_fscrypt_decrypt_block_inplace(
                                  struct page *page, unsigned int len,
                                  unsigned int offs, u64 lblk_num)
  {
-       dout("%s: len %u offs %u blk %llu\n", __func__, len, offs, lblk_num);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
+       doutc(cl, "%p %llx.%llx len %u offs %u blk %llu\n", inode,
+             ceph_vinop(inode), len, offs, lblk_num);
        return fscrypt_decrypt_block_inplace(inode, page, len, offs, lblk_num);
  }
  
@@@ -514,7 -518,10 +519,10 @@@ int ceph_fscrypt_encrypt_block_inplace(
                                  unsigned int offs, u64 lblk_num,
                                  gfp_t gfp_flags)
  {
-       dout("%s: len %u offs %u blk %llu\n", __func__, len, offs, lblk_num);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
+       doutc(cl, "%p %llx.%llx len %u offs %u blk %llu\n", inode,
+             ceph_vinop(inode), len, offs, lblk_num);
        return fscrypt_encrypt_block_inplace(inode, page, len, offs, lblk_num,
                                             gfp_flags);
  }
@@@ -583,6 -590,7 +591,7 @@@ int ceph_fscrypt_decrypt_extents(struc
                                 u64 off, struct ceph_sparse_extent *map,
                                 u32 ext_cnt)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int i, ret = 0;
        struct ceph_inode_info *ci = ceph_inode(inode);
        u64 objno, objoff;
  
        /* Nothing to do for empty array */
        if (ext_cnt == 0) {
-               dout("%s: empty array, ret 0\n", __func__);
+               doutc(cl, "%p %llx.%llx empty array, ret 0\n", inode,
+                     ceph_vinop(inode));
                return 0;
        }
  
                int fret;
  
                if ((ext->off | ext->len) & ~CEPH_FSCRYPT_BLOCK_MASK) {
-                       pr_warn("%s: bad encrypted sparse extent idx %d off %llx len %llx\n",
-                               __func__, i, ext->off, ext->len);
+                       pr_warn_client(cl,
+                               "%p %llx.%llx bad encrypted sparse extent "
+                               "idx %d off %llx len %llx\n",
+                               inode, ceph_vinop(inode), i, ext->off,
+                               ext->len);
                        return -EIO;
                }
                fret = ceph_fscrypt_decrypt_pages(inode, &page[pgidx],
                                                 off + pgsoff, ext->len);
-               dout("%s: [%d] 0x%llx~0x%llx fret %d\n", __func__, i,
-                               ext->off, ext->len, fret);
+               doutc(cl, "%p %llx.%llx [%d] 0x%llx~0x%llx fret %d\n", inode,
+                     ceph_vinop(inode), i, ext->off, ext->len, fret);
                if (fret < 0) {
                        if (ret == 0)
                                ret = fret;
                }
                ret = pgsoff + fret;
        }
-       dout("%s: ret %d\n", __func__, ret);
+       doutc(cl, "ret %d\n", ret);
        return ret;
  }
  
diff --combined fs/ceph/file.c
index 649600d0a7b6c08296154a7756a62423679ad184,53789c5f2ebbb2107be04cdb49309ae6a06b3515..3b5aae29e94478ced4e2a962bad1fa26f63b50cd
@@@ -19,8 -19,9 +19,9 @@@
  #include "io.h"
  #include "metric.h"
  
- static __le32 ceph_flags_sys2wire(u32 flags)
+ static __le32 ceph_flags_sys2wire(struct ceph_mds_client *mdsc, u32 flags)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        u32 wire_flags = 0;
  
        switch (flags & O_ACCMODE) {
@@@ -48,7 -49,7 +49,7 @@@
  #undef ceph_sys2wire
  
        if (flags)
-               dout("unused open flags: %x\n", flags);
+               doutc(cl, "unused open flags: %x\n", flags);
  
        return cpu_to_le32(wire_flags);
  }
@@@ -189,7 -190,7 +190,7 @@@ prepare_open_request(struct super_bloc
        if (IS_ERR(req))
                goto out;
        req->r_fmode = ceph_flags_to_mode(flags);
-       req->r_args.open.flags = ceph_flags_sys2wire(flags);
+       req->r_args.open.flags = ceph_flags_sys2wire(mdsc, flags);
        req->r_args.open.mode = cpu_to_le32(create_mode);
  out:
        return req;
@@@ -200,12 -201,13 +201,13 @@@ static int ceph_init_file_info(struct i
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_mount_options *opt =
-               ceph_inode_to_client(&ci->netfs.inode)->mount_options;
+               ceph_inode_to_fs_client(&ci->netfs.inode)->mount_options;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_file_info *fi;
        int ret;
  
-       dout("%s %p %p 0%o (%s)\n", __func__, inode, file,
-                       inode->i_mode, isdir ? "dir" : "regular");
+       doutc(cl, "%p %llx.%llx %p 0%o (%s)\n", inode, ceph_vinop(inode),
+             file, inode->i_mode, isdir ? "dir" : "regular");
        BUG_ON(inode->i_fop->release != ceph_release);
  
        if (isdir) {
  
        spin_lock_init(&fi->rw_contexts_lock);
        INIT_LIST_HEAD(&fi->rw_contexts);
-       fi->filp_gen = READ_ONCE(ceph_inode_to_client(inode)->filp_gen);
+       fi->filp_gen = READ_ONCE(ceph_inode_to_fs_client(inode)->filp_gen);
  
        if ((file->f_mode & FMODE_WRITE) && ceph_has_inline_data(ci)) {
                ret = ceph_uninline_data(file);
@@@ -259,6 -261,7 +261,7 @@@ error
   */
  static int ceph_init_file(struct inode *inode, struct file *file, int fmode)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int ret = 0;
  
        switch (inode->i_mode & S_IFMT) {
                break;
  
        case S_IFLNK:
-               dout("init_file %p %p 0%o (symlink)\n", inode, file,
-                    inode->i_mode);
+               doutc(cl, "%p %llx.%llx %p 0%o (symlink)\n", inode,
+                     ceph_vinop(inode), file, inode->i_mode);
                break;
  
        default:
-               dout("init_file %p %p 0%o (special)\n", inode, file,
-                    inode->i_mode);
+               doutc(cl, "%p %llx.%llx %p 0%o (special)\n", inode,
+                     ceph_vinop(inode), file, inode->i_mode);
                /*
                 * we need to drop the open ref now, since we don't
                 * have .release set to ceph_release.
  int ceph_renew_caps(struct inode *inode, int fmode)
  {
        struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_mds_request *req;
        int err, flags, wanted;
            (!(wanted & CEPH_CAP_ANY_WR) || ci->i_auth_cap)) {
                int issued = __ceph_caps_issued(ci, NULL);
                spin_unlock(&ci->i_ceph_lock);
-               dout("renew caps %p want %s issued %s updating mds_wanted\n",
-                    inode, ceph_cap_string(wanted), ceph_cap_string(issued));
+               doutc(cl, "%p %llx.%llx want %s issued %s updating mds_wanted\n",
+                     inode, ceph_vinop(inode), ceph_cap_string(wanted),
+                     ceph_cap_string(issued));
                ceph_check_caps(ci, 0);
                return 0;
        }
        err = ceph_mdsc_do_request(mdsc, NULL, req);
        ceph_mdsc_put_request(req);
  out:
-       dout("renew caps %p open result=%d\n", inode, err);
+       doutc(cl, "%p %llx.%llx open result=%d\n", inode, ceph_vinop(inode),
+             err);
        return err < 0 ? err : 0;
  }
  
  int ceph_open(struct inode *inode, struct file *file)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(inode->i_sb);
+       struct ceph_client *cl = fsc->client;
        struct ceph_mds_client *mdsc = fsc->mdsc;
        struct ceph_mds_request *req;
        struct ceph_file_info *fi = file->private_data;
        int flags, fmode, wanted;
  
        if (fi) {
-               dout("open file %p is already opened\n", file);
+               doutc(cl, "file %p is already opened\n", file);
                return 0;
        }
  
                        return err;
        }
  
-       dout("open inode %p ino %llx.%llx file %p flags %d (%d)\n", inode,
-            ceph_vinop(inode), file, flags, file->f_flags);
+       doutc(cl, "%p %llx.%llx file %p flags %d (%d)\n", inode,
+             ceph_vinop(inode), file, flags, file->f_flags);
        fmode = ceph_flags_to_mode(flags);
        wanted = ceph_caps_for_mode(fmode);
  
                int mds_wanted = __ceph_caps_mds_wanted(ci, true);
                int issued = __ceph_caps_issued(ci, NULL);
  
-               dout("open %p fmode %d want %s issued %s using existing\n",
-                    inode, fmode, ceph_cap_string(wanted),
-                    ceph_cap_string(issued));
+               doutc(cl, "open %p fmode %d want %s issued %s using existing\n",
+                     inode, fmode, ceph_cap_string(wanted),
+                     ceph_cap_string(issued));
                __ceph_touch_fmode(ci, mdsc, fmode);
                spin_unlock(&ci->i_ceph_lock);
  
  
        spin_unlock(&ci->i_ceph_lock);
  
-       dout("open fmode %d wants %s\n", fmode, ceph_cap_string(wanted));
+       doutc(cl, "open fmode %d wants %s\n", fmode, ceph_cap_string(wanted));
        req = prepare_open_request(inode->i_sb, flags, 0);
        if (IS_ERR(req)) {
                err = PTR_ERR(req);
        if (!err)
                err = ceph_init_file(inode, file, req->r_fmode);
        ceph_mdsc_put_request(req);
-       dout("open result=%d on %llx.%llx\n", err, ceph_vinop(inode));
+       doutc(cl, "open result=%d on %llx.%llx\n", err, ceph_vinop(inode));
  out:
        return err;
  }
@@@ -515,6 -522,7 +522,7 @@@ no_async
  
  static void restore_deleg_ino(struct inode *dir, u64 ino)
  {
+       struct ceph_client *cl = ceph_inode_to_client(dir);
        struct ceph_inode_info *ci = ceph_inode(dir);
        struct ceph_mds_session *s = NULL;
  
        if (s) {
                int err = ceph_restore_deleg_ino(s, ino);
                if (err)
-                       pr_warn("ceph: unable to restore delegated ino 0x%llx to session: %d\n",
+                       pr_warn_client(cl,
+                               "unable to restore delegated ino 0x%llx to session: %d\n",
                                ino, err);
                ceph_put_mds_session(s);
        }
@@@ -557,6 -566,7 +566,7 @@@ static void wake_async_create_waiters(s
  static void ceph_async_create_cb(struct ceph_mds_client *mdsc,
                                   struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct dentry *dentry = req->r_dentry;
        struct inode *dinode = d_inode(dentry);
        struct inode *tinode = req->r_target_inode;
        if (result) {
                int pathlen = 0;
                u64 base = 0;
-               char *path = ceph_mdsc_build_path(req->r_dentry, &pathlen,
+               char *path = ceph_mdsc_build_path(mdsc, req->r_dentry, &pathlen,
                                                  &base, 0);
  
-               pr_warn("async create failure path=(%llx)%s result=%d!\n",
+               pr_warn_client(cl,
+                       "async create failure path=(%llx)%s result=%d!\n",
                        base, IS_ERR(path) ? "<<bad>>" : path, result);
                ceph_mdsc_free_path(path, pathlen);
  
                u64 ino = ceph_vino(tinode).ino;
  
                if (req->r_deleg_ino != ino)
-                       pr_warn("%s: inode number mismatch! err=%d deleg_ino=0x%llx target=0x%llx\n",
-                               __func__, req->r_err, req->r_deleg_ino, ino);
+                       pr_warn_client(cl,
+                               "inode number mismatch! err=%d deleg_ino=0x%llx target=0x%llx\n",
+                               req->r_err, req->r_deleg_ino, ino);
  
                mapping_set_error(tinode->i_mapping, result);
                wake_async_create_waiters(tinode, req->r_session);
        } else if (!result) {
-               pr_warn("%s: no req->r_target_inode for 0x%llx\n", __func__,
-                       req->r_deleg_ino);
+               pr_warn_client(cl, "no req->r_target_inode for 0x%llx\n",
+                              req->r_deleg_ino);
        }
  out:
        ceph_mdsc_release_dir_caps(req);
@@@ -625,6 -637,7 +637,7 @@@ static int ceph_finish_async_create(str
        struct timespec64 now;
        struct ceph_string *pool_ns;
        struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_vino vino = { .ino = req->r_deleg_ino,
                                  .snap = CEPH_NOSNAP };
  
        in.truncate_seq = cpu_to_le32(1);
        in.truncate_size = cpu_to_le64(-1ULL);
        in.xattr_version = cpu_to_le64(1);
-       in.uid = cpu_to_le32(from_kuid(&init_user_ns, current_fsuid()));
+       in.uid = cpu_to_le32(from_kuid(&init_user_ns,
+                                      mapped_fsuid(req->r_mnt_idmap,
+                                                   &init_user_ns)));
        if (dir->i_mode & S_ISGID) {
                in.gid = cpu_to_le32(from_kgid(&init_user_ns, dir->i_gid));
  
                if (S_ISDIR(mode))
                        mode |= S_ISGID;
        } else {
-               in.gid = cpu_to_le32(from_kgid(&init_user_ns, current_fsgid()));
+               in.gid = cpu_to_le32(from_kgid(&init_user_ns,
+                                    mapped_fsgid(req->r_mnt_idmap,
+                                                 &init_user_ns)));
        }
        in.mode = cpu_to_le32((u32)mode);
  
                              req->r_fmode, NULL);
        up_read(&mdsc->snap_rwsem);
        if (ret) {
-               dout("%s failed to fill inode: %d\n", __func__, ret);
+               doutc(cl, "failed to fill inode: %d\n", ret);
                ceph_dir_clear_complete(dir);
                if (!d_unhashed(dentry))
                        d_drop(dentry);
        } else {
                struct dentry *dn;
  
-               dout("%s d_adding new inode 0x%llx to 0x%llx/%s\n", __func__,
-                       vino.ino, ceph_ino(dir), dentry->d_name.name);
+               doutc(cl, "d_adding new inode 0x%llx to 0x%llx/%s\n",
+                     vino.ino, ceph_ino(dir), dentry->d_name.name);
                ceph_dir_clear_ordered(dir);
                ceph_init_inode_acls(inode, as_ctx);
                if (inode->i_state & I_NEW) {
  int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
                     struct file *file, unsigned flags, umode_t mode)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
+       struct mnt_idmap *idmap = file_mnt_idmap(file);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(dir->i_sb);
+       struct ceph_client *cl = fsc->client;
        struct ceph_mds_client *mdsc = fsc->mdsc;
        struct ceph_mds_request *req;
        struct inode *new_inode = NULL;
        int mask;
        int err;
  
-       dout("atomic_open %p dentry %p '%pd' %s flags %d mode 0%o\n",
-            dir, dentry, dentry,
-            d_unhashed(dentry) ? "unhashed" : "hashed", flags, mode);
+       doutc(cl, "%p %llx.%llx dentry %p '%pd' %s flags %d mode 0%o\n",
+             dir, ceph_vinop(dir), dentry, dentry,
+             d_unhashed(dentry) ? "unhashed" : "hashed", flags, mode);
  
        if (dentry->d_name.len > NAME_MAX)
                return -ENAMETOOLONG;
@@@ -788,6 -807,8 +807,8 @@@ retry
                mask |= CEPH_CAP_XATTR_SHARED;
        req->r_args.open.mask = cpu_to_le32(mask);
        req->r_parent = dir;
+       if (req->r_op == CEPH_MDS_OP_CREATE)
+               req->r_mnt_idmap = mnt_idmap_get(idmap);
        ihold(dir);
        if (IS_ENCRYPTED(dir)) {
                set_bit(CEPH_MDS_R_FSCRYPT_FILE, &req->r_req_flags);
                goto out_req;
        if (dn || d_really_is_negative(dentry) || d_is_symlink(dentry)) {
                /* make vfs retry on splice, ENOENT, or symlink */
-               dout("atomic_open finish_no_open on dn %p\n", dn);
+               doutc(cl, "finish_no_open on dn %p\n", dn);
                err = finish_no_open(file, dn);
        } else {
                if (IS_ENCRYPTED(dir) &&
                    !fscrypt_has_permitted_context(dir, d_inode(dentry))) {
-                       pr_warn("Inconsistent encryption context (parent %llx:%llx child %llx:%llx)\n",
+                       pr_warn_client(cl,
+                               "Inconsistent encryption context (parent %llx:%llx child %llx:%llx)\n",
                                ceph_vinop(dir), ceph_vinop(d_inode(dentry)));
                        goto out_req;
                }
  
-               dout("atomic_open finish_open on dn %p\n", dn);
+               doutc(cl, "finish_open on dn %p\n", dn);
                if (req->r_op == CEPH_MDS_OP_CREATE && req->r_reply_info.has_create_ino) {
                        struct inode *newino = d_inode(dentry);
  
@@@ -905,17 -927,19 +927,19 @@@ out_req
        iput(new_inode);
  out_ctx:
        ceph_release_acl_sec_ctx(&as_ctx);
-       dout("atomic_open result=%d\n", err);
+       doutc(cl, "result=%d\n", err);
        return err;
  }
  
  int ceph_release(struct inode *inode, struct file *file)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
  
        if (S_ISDIR(inode->i_mode)) {
                struct ceph_dir_file_info *dfi = file->private_data;
-               dout("release inode %p dir file %p\n", inode, file);
+               doutc(cl, "%p %llx.%llx dir file %p\n", inode,
+                     ceph_vinop(inode), file);
                WARN_ON(!list_empty(&dfi->file_info.rw_contexts));
  
                ceph_put_fmode(ci, dfi->file_info.fmode, 1);
                kmem_cache_free(ceph_dir_file_cachep, dfi);
        } else {
                struct ceph_file_info *fi = file->private_data;
-               dout("release inode %p regular file %p\n", inode, file);
+               doutc(cl, "%p %llx.%llx regular file %p\n", inode,
+                     ceph_vinop(inode), file);
                WARN_ON(!list_empty(&fi->rw_contexts));
  
                ceph_fscache_unuse_cookie(inode, file->f_mode & FMODE_WRITE);
@@@ -962,7 -987,8 +987,8 @@@ ssize_t __ceph_sync_read(struct inode *
                         u64 *last_objver)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_client *osdc = &fsc->client->osdc;
        ssize_t ret;
        u64 off = *ki_pos;
        bool sparse = IS_ENCRYPTED(inode) || ceph_test_mount_opt(fsc, SPARSEREAD);
        u64 objver = 0;
  
-       dout("sync_read on inode %p %llx~%llx\n", inode, *ki_pos, len);
+       doutc(cl, "on inode %p %llx.%llx %llx~%llx\n", inode,
+             ceph_vinop(inode), *ki_pos, len);
  
        if (ceph_inode_is_shutdown(inode))
                return -EIO;
                /* determine new offset/length if encrypted */
                ceph_fscrypt_adjust_off_and_len(inode, &read_off, &read_len);
  
-               dout("sync_read orig %llu~%llu reading %llu~%llu",
-                    off, len, read_off, read_len);
+               doutc(cl, "orig %llu~%llu reading %llu~%llu", off, len,
+                     read_off, read_len);
  
                req = ceph_osdc_new_request(osdc, &ci->i_layout,
                                        ci->i_vino, read_off, &read_len, 0, 1,
                        objver = req->r_version;
  
                i_size = i_size_read(inode);
-               dout("sync_read %llu~%llu got %zd i_size %llu%s\n",
-                    off, len, ret, i_size, (more ? " MORE" : ""));
+               doutc(cl, "%llu~%llu got %zd i_size %llu%s\n", off, len,
+                     ret, i_size, (more ? " MORE" : ""));
  
                /* Fix it to go to end of extent map */
                if (sparse && ret >= 0)
                        int zlen = min(len - ret, i_size - off - ret);
                        int zoff = page_off + ret;
  
-                       dout("sync_read zero gap %llu~%llu\n",
-                               off + ret, off + ret + zlen);
+                       doutc(cl, "zero gap %llu~%llu\n", off + ret,
+                             off + ret + zlen);
                        ceph_zero_page_vector_range(zoff, zlen, pages);
                        ret += zlen;
                }
                if (last_objver)
                        *last_objver = objver;
        }
-       dout("sync_read result %zd retry_op %d\n", ret, *retry_op);
+       doutc(cl, "result %zd retry_op %d\n", ret, *retry_op);
        return ret;
  }
  
@@@ -1160,9 -1187,11 +1187,11 @@@ static ssize_t ceph_sync_read(struct ki
  {
        struct file *file = iocb->ki_filp;
        struct inode *inode = file_inode(file);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
  
-       dout("sync_read on file %p %llx~%zx %s\n", file, iocb->ki_pos,
-            iov_iter_count(to), (file->f_flags & O_DIRECT) ? "O_DIRECT" : "");
+       doutc(cl, "on file %p %llx~%zx %s\n", file, iocb->ki_pos,
+             iov_iter_count(to),
+             (file->f_flags & O_DIRECT) ? "O_DIRECT" : "");
  
        return __ceph_sync_read(inode, &iocb->ki_pos, to, retry_op, NULL);
  }
@@@ -1190,6 -1219,7 +1219,7 @@@ static void ceph_aio_retry_work(struct 
  static void ceph_aio_complete(struct inode *inode,
                              struct ceph_aio_request *aio_req)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        int ret;
  
        if (!ret)
                ret = aio_req->total_len;
  
-       dout("ceph_aio_complete %p rc %d\n", inode, ret);
+       doutc(cl, "%p %llx.%llx rc %d\n", inode, ceph_vinop(inode), ret);
  
        if (ret >= 0 && aio_req->write) {
                int dirty;
@@@ -1242,11 -1272,13 +1272,13 @@@ static void ceph_aio_complete_req(struc
        struct ceph_client_metric *metric = &ceph_sb_to_mdsc(inode->i_sb)->metric;
        unsigned int len = osd_data->bvec_pos.iter.bi_size;
        bool sparse = (op->op == CEPH_OSD_OP_SPARSE_READ);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
  
        BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_BVECS);
        BUG_ON(!osd_data->num_bvecs);
  
-       dout("ceph_aio_complete_req %p rc %d bytes %u\n", inode, rc, len);
+       doutc(cl, "req %p inode %p %llx.%llx, rc %d bytes %u\n", req,
+             inode, ceph_vinop(inode), rc, len);
  
        if (rc == -EOLDSNAPC) {
                struct ceph_aio_work *aio_work;
                if (aio_work) {
                        INIT_WORK(&aio_work->work, ceph_aio_retry_work);
                        aio_work->req = req;
-                       queue_work(ceph_inode_to_client(inode)->inode_wq,
+                       queue_work(ceph_inode_to_fs_client(inode)->inode_wq,
                                   &aio_work->work);
                        return;
                }
@@@ -1386,7 -1418,8 +1418,8 @@@ ceph_direct_read_write(struct kiocb *io
        struct file *file = iocb->ki_filp;
        struct inode *inode = file_inode(file);
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_client_metric *metric = &fsc->mdsc->metric;
        struct ceph_vino vino;
        struct ceph_osd_request *req;
        if (write && ceph_snap(file_inode(file)) != CEPH_NOSNAP)
                return -EROFS;
  
-       dout("sync_direct_%s on file %p %lld~%u snapc %p seq %lld\n",
-            (write ? "write" : "read"), file, pos, (unsigned)count,
-            snapc, snapc ? snapc->seq : 0);
+       doutc(cl, "sync_direct_%s on file %p %lld~%u snapc %p seq %lld\n",
+             (write ? "write" : "read"), file, pos, (unsigned)count,
+             snapc, snapc ? snapc->seq : 0);
  
        if (write) {
                int ret2;
                                        pos >> PAGE_SHIFT,
                                        (pos + count - 1) >> PAGE_SHIFT);
                if (ret2 < 0)
-                       dout("invalidate_inode_pages2_range returned %d\n", ret2);
+                       doutc(cl, "invalidate_inode_pages2_range returned %d\n",
+                             ret2);
  
                flags = /* CEPH_OSD_FLAG_ORDERSNAP | */ CEPH_OSD_FLAG_WRITE;
        } else {
@@@ -1610,7 -1644,8 +1644,8 @@@ ceph_sync_write(struct kiocb *iocb, str
        struct file *file = iocb->ki_filp;
        struct inode *inode = file_inode(file);
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_client *osdc = &fsc->client->osdc;
        struct ceph_osd_request *req;
        struct page **pages;
        if (ceph_snap(file_inode(file)) != CEPH_NOSNAP)
                return -EROFS;
  
-       dout("sync_write on file %p %lld~%u snapc %p seq %lld\n",
-            file, pos, (unsigned)count, snapc, snapc->seq);
+       doutc(cl, "on file %p %lld~%u snapc %p seq %lld\n", file, pos,
+             (unsigned)count, snapc, snapc->seq);
  
        ret = filemap_write_and_wait_range(inode->i_mapping,
                                           pos, pos + count - 1);
                last = (pos + len) != (write_pos + write_len);
                rmw = first || last;
  
-               dout("sync_write ino %llx %lld~%llu adjusted %lld~%llu -- %srmw\n",
-                    ci->i_vino.ino, pos, len, write_pos, write_len,
-                    rmw ? "" : "no ");
+               doutc(cl, "ino %llx %lld~%llu adjusted %lld~%llu -- %srmw\n",
+                     ci->i_vino.ino, pos, len, write_pos, write_len,
+                     rmw ? "" : "no ");
  
                /*
                 * The data is emplaced into the page as it would be if it were
                        left -= ret;
                }
                if (ret < 0) {
-                       dout("sync_write write failed with %d\n", ret);
+                       doutc(cl, "write failed with %d\n", ret);
                        ceph_release_page_vector(pages, num_pages);
                        break;
                }
                                                         write_pos, write_len,
                                                         GFP_KERNEL);
                        if (ret < 0) {
-                               dout("encryption failed with %d\n", ret);
+                               doutc(cl, "encryption failed with %d\n", ret);
                                ceph_release_page_vector(pages, num_pages);
                                break;
                        }
                        break;
                }
  
-               dout("sync_write write op %lld~%llu\n", write_pos, write_len);
+               doutc(cl, "write op %lld~%llu\n", write_pos, write_len);
                osd_req_op_extent_osd_data_pages(req, rmw ? 1 : 0, pages, write_len,
                                                 offset_in_page(write_pos), false,
                                                 true);
                                          req->r_end_latency, len, ret);
                ceph_osdc_put_request(req);
                if (ret != 0) {
-                       dout("sync_write osd write returned %d\n", ret);
+                       doutc(cl, "osd write returned %d\n", ret);
                        /* Version changed! Must re-do the rmw cycle */
                        if ((assert_ver && (ret == -ERANGE || ret == -EOVERFLOW)) ||
                            (!assert_ver && ret == -EEXIST)) {
                                pos >> PAGE_SHIFT,
                                (pos + len - 1) >> PAGE_SHIFT);
                if (ret < 0) {
-                       dout("invalidate_inode_pages2_range returned %d\n",
-                            ret);
+                       doutc(cl, "invalidate_inode_pages2_range returned %d\n",
+                             ret);
                        ret = 0;
                }
                pos += len;
                written += len;
-               dout("sync_write written %d\n", written);
+               doutc(cl, "written %d\n", written);
                if (pos > i_size_read(inode)) {
                        check_caps = ceph_inode_set_size(inode, pos);
                        if (check_caps)
                ret = written;
                iocb->ki_pos = pos;
        }
-       dout("sync_write returning %d\n", ret);
+       doutc(cl, "returning %d\n", ret);
        return ret;
  }
  
@@@ -2010,13 -2045,14 +2045,14 @@@ static ssize_t ceph_read_iter(struct ki
        struct inode *inode = file_inode(filp);
        struct ceph_inode_info *ci = ceph_inode(inode);
        bool direct_lock = iocb->ki_flags & IOCB_DIRECT;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        ssize_t ret;
        int want = 0, got = 0;
        int retry_op = 0, read = 0;
  
  again:
-       dout("aio_read %p %llx.%llx %llu~%u trying to get caps on %p\n",
-            inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len, inode);
+       doutc(cl, "%llu~%u trying to get caps on %p %llx.%llx\n",
+             iocb->ki_pos, (unsigned)len, inode, ceph_vinop(inode));
  
        if (ceph_inode_is_shutdown(inode))
                return -ESTALE;
            (iocb->ki_flags & IOCB_DIRECT) ||
            (fi->flags & CEPH_F_SYNC)) {
  
-               dout("aio_sync_read %p %llx.%llx %llu~%u got cap refs on %s\n",
-                    inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
-                    ceph_cap_string(got));
+               doutc(cl, "sync %p %llx.%llx %llu~%u got cap refs on %s\n",
+                     inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
+                     ceph_cap_string(got));
  
                if (!ceph_has_inline_data(ci)) {
                        if (!retry_op &&
                }
        } else {
                CEPH_DEFINE_RW_CONTEXT(rw_ctx, got);
-               dout("aio_read %p %llx.%llx %llu~%u got cap refs on %s\n",
-                    inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
-                    ceph_cap_string(got));
+               doutc(cl, "async %p %llx.%llx %llu~%u got cap refs on %s\n",
+                     inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
+                     ceph_cap_string(got));
                ceph_add_rw_context(fi, &rw_ctx);
                ret = generic_file_read_iter(iocb, to);
                ceph_del_rw_context(fi, &rw_ctx);
        }
  
-       dout("aio_read %p %llx.%llx dropping cap refs on %s = %d\n",
-            inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret);
+       doutc(cl, "%p %llx.%llx dropping cap refs on %s = %d\n",
+             inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret);
        ceph_put_cap_refs(ci, got);
  
        if (direct_lock)
                /* hit EOF or hole? */
                if (retry_op == CHECK_EOF && iocb->ki_pos < i_size &&
                    ret < len) {
-                       dout("sync_read hit hole, ppos %lld < size %lld"
-                            ", reading more\n", iocb->ki_pos, i_size);
+                       doutc(cl, "hit hole, ppos %lld < size %lld, reading more\n",
+                             iocb->ki_pos, i_size);
  
                        read += ret;
                        len -= ret;
@@@ -2228,7 -2264,8 +2264,8 @@@ static ssize_t ceph_write_iter(struct k
        struct ceph_file_info *fi = file->private_data;
        struct inode *inode = file_inode(file);
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_client *osdc = &fsc->client->osdc;
        struct ceph_cap_flush *prealloc_cf;
        ssize_t count, written = 0;
@@@ -2296,8 -2333,9 +2333,9 @@@ retry_snap
        if (err)
                goto out;
  
-       dout("aio_write %p %llx.%llx %llu~%zd getting caps. i_size %llu\n",
-            inode, ceph_vinop(inode), pos, count, i_size_read(inode));
+       doutc(cl, "%p %llx.%llx %llu~%zd getting caps. i_size %llu\n",
+             inode, ceph_vinop(inode), pos, count,
+             i_size_read(inode));
        if (!(fi->flags & CEPH_F_SYNC) && !direct_lock)
                want |= CEPH_CAP_FILE_BUFFER;
        if (fi->fmode & CEPH_FILE_MODE_LAZY)
  
        inode_inc_iversion_raw(inode);
  
-       dout("aio_write %p %llx.%llx %llu~%zd got cap refs on %s\n",
-            inode, ceph_vinop(inode), pos, count, ceph_cap_string(got));
+       doutc(cl, "%p %llx.%llx %llu~%zd got cap refs on %s\n",
+             inode, ceph_vinop(inode), pos, count, ceph_cap_string(got));
  
        if ((got & (CEPH_CAP_FILE_BUFFER|CEPH_CAP_FILE_LAZYIO)) == 0 ||
            (iocb->ki_flags & IOCB_DIRECT) || (fi->flags & CEPH_F_SYNC) ||
                        ceph_check_caps(ci, CHECK_CAPS_FLUSH);
        }
  
-       dout("aio_write %p %llx.%llx %llu~%u  dropping cap refs on %s\n",
-            inode, ceph_vinop(inode), pos, (unsigned)count,
-            ceph_cap_string(got));
+       doutc(cl, "%p %llx.%llx %llu~%u  dropping cap refs on %s\n",
+             inode, ceph_vinop(inode), pos, (unsigned)count,
+             ceph_cap_string(got));
        ceph_put_cap_refs(ci, got);
  
        if (written == -EOLDSNAPC) {
-               dout("aio_write %p %llx.%llx %llu~%u" "got EOLDSNAPC, retrying\n",
-                    inode, ceph_vinop(inode), pos, (unsigned)count);
+               doutc(cl, "%p %llx.%llx %llu~%u" "got EOLDSNAPC, retrying\n",
+                     inode, ceph_vinop(inode), pos, (unsigned)count);
                goto retry_snap;
        }
  
@@@ -2462,7 -2500,7 +2500,7 @@@ static int ceph_zero_partial_object(str
                                    loff_t offset, loff_t *length)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        struct ceph_osd_request *req;
        int ret = 0;
        loff_t zero = 0;
                goto out;
        }
  
 -      req->r_mtime = inode->i_mtime;
 +      req->r_mtime = inode_get_mtime(inode);
        ceph_osdc_start_request(&fsc->client->osdc, req);
        ret = ceph_osdc_wait_request(&fsc->client->osdc, req);
        if (ret == -ENOENT)
@@@ -2553,14 -2591,15 +2591,15 @@@ static long ceph_fallocate(struct file 
        struct inode *inode = file_inode(file);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_cap_flush *prealloc_cf;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        int want, got = 0;
        int dirty;
        int ret = 0;
        loff_t endoff = 0;
        loff_t size;
  
-       dout("%s %p %llx.%llx mode %x, offset %llu length %llu\n", __func__,
-            inode, ceph_vinop(inode), mode, offset, length);
+       doutc(cl, "%p %llx.%llx mode %x, offset %llu length %llu\n",
+             inode, ceph_vinop(inode), mode, offset, length);
  
        if (mode != (FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
                return -EOPNOTSUPP;
@@@ -2689,6 -2728,7 +2728,7 @@@ static void put_rd_wr_caps(struct ceph_
  static int is_file_size_ok(struct inode *src_inode, struct inode *dst_inode,
                           loff_t src_off, loff_t dst_off, size_t len)
  {
+       struct ceph_client *cl = ceph_inode_to_client(src_inode);
        loff_t size, endoff;
  
        size = i_size_read(src_inode);
         * inode.
         */
        if (src_off + len > size) {
-               dout("Copy beyond EOF (%llu + %zu > %llu)\n",
-                    src_off, len, size);
+               doutc(cl, "Copy beyond EOF (%llu + %zu > %llu)\n", src_off,
+                     len, size);
                return -EOPNOTSUPP;
        }
        size = i_size_read(dst_inode);
@@@ -2776,6 -2816,7 +2816,7 @@@ static ssize_t ceph_do_objects_copy(str
        u64 src_objnum, src_objoff, dst_objnum, dst_objoff;
        u32 src_objlen, dst_objlen;
        u32 object_size = src_ci->i_layout.object_size;
+       struct ceph_client *cl = fsc->client;
        int ret;
  
        src_oloc.pool = src_ci->i_layout.pool_id;
                if (ret) {
                        if (ret == -EOPNOTSUPP) {
                                fsc->have_copy_from2 = false;
-                               pr_notice("OSDs don't support copy-from2; disabling copy offload\n");
+                               pr_notice_client(cl,
+                                       "OSDs don't support copy-from2; disabling copy offload\n");
                        }
-                       dout("ceph_osdc_copy_from returned %d\n", ret);
+                       doutc(cl, "returned %d\n", ret);
                        if (!bytes)
                                bytes = ret;
                        goto out;
@@@ -2845,7 -2887,8 +2887,8 @@@ static ssize_t __ceph_copy_file_range(s
        struct ceph_inode_info *src_ci = ceph_inode(src_inode);
        struct ceph_inode_info *dst_ci = ceph_inode(dst_inode);
        struct ceph_cap_flush *prealloc_cf;
-       struct ceph_fs_client *src_fsc = ceph_inode_to_client(src_inode);
+       struct ceph_fs_client *src_fsc = ceph_inode_to_fs_client(src_inode);
+       struct ceph_client *cl = src_fsc->client;
        loff_t size;
        ssize_t ret = -EIO, bytes;
        u64 src_objnum, dst_objnum, src_objoff, dst_objoff;
        int src_got = 0, dst_got = 0, err, dirty;
  
        if (src_inode->i_sb != dst_inode->i_sb) {
-               struct ceph_fs_client *dst_fsc = ceph_inode_to_client(dst_inode);
+               struct ceph_fs_client *dst_fsc = ceph_inode_to_fs_client(dst_inode);
  
                if (ceph_fsid_compare(&src_fsc->client->fsid,
                                      &dst_fsc->client->fsid)) {
            (src_ci->i_layout.stripe_count != 1) ||
            (dst_ci->i_layout.stripe_count != 1) ||
            (src_ci->i_layout.object_size != dst_ci->i_layout.object_size)) {
-               dout("Invalid src/dst files layout\n");
+               doutc(cl, "Invalid src/dst files layout\n");
                return -EOPNOTSUPP;
        }
  
        /* Start by sync'ing the source and destination files */
        ret = file_write_and_wait_range(src_file, src_off, (src_off + len));
        if (ret < 0) {
-               dout("failed to write src file (%zd)\n", ret);
+               doutc(cl, "failed to write src file (%zd)\n", ret);
                goto out;
        }
        ret = file_write_and_wait_range(dst_file, dst_off, (dst_off + len));
        if (ret < 0) {
-               dout("failed to write dst file (%zd)\n", ret);
+               doutc(cl, "failed to write dst file (%zd)\n", ret);
                goto out;
        }
  
        err = get_rd_wr_caps(src_file, &src_got,
                             dst_file, (dst_off + len), &dst_got);
        if (err < 0) {
-               dout("get_rd_wr_caps returned %d\n", err);
+               doutc(cl, "get_rd_wr_caps returned %d\n", err);
                ret = -EOPNOTSUPP;
                goto out;
        }
                                            dst_off >> PAGE_SHIFT,
                                            (dst_off + len) >> PAGE_SHIFT);
        if (ret < 0) {
-               dout("Failed to invalidate inode pages (%zd)\n", ret);
+               doutc(cl, "Failed to invalidate inode pages (%zd)\n",
+                           ret);
                ret = 0; /* XXX */
        }
        ceph_calc_file_object_mapping(&src_ci->i_layout, src_off,
         * starting at the src_off
         */
        if (src_objoff) {
-               dout("Initial partial copy of %u bytes\n", src_objlen);
+               doutc(cl, "Initial partial copy of %u bytes\n", src_objlen);
  
                /*
                 * we need to temporarily drop all caps as we'll be calling
                                       &dst_off, src_objlen, flags);
                /* Abort on short copies or on error */
                if (ret < (long)src_objlen) {
-                       dout("Failed partial copy (%zd)\n", ret);
+                       doutc(cl, "Failed partial copy (%zd)\n", ret);
                        goto out;
                }
                len -= ret;
                        ret = bytes;
                goto out_caps;
        }
-       dout("Copied %zu bytes out of %zu\n", bytes, len);
+       doutc(cl, "Copied %zu bytes out of %zu\n", bytes, len);
        len -= bytes;
        ret += bytes;
  
@@@ -3020,13 -3064,13 +3064,13 @@@ out_caps
         * there were errors in remote object copies (len >= object_size).
         */
        if (len && (len < src_ci->i_layout.object_size)) {
-               dout("Final partial copy of %zu bytes\n", len);
+               doutc(cl, "Final partial copy of %zu bytes\n", len);
                bytes = do_splice_direct(src_file, &src_off, dst_file,
                                         &dst_off, len, flags);
                if (bytes > 0)
                        ret += bytes;
                else
-                       dout("Failed partial copy (%zd)\n", bytes);
+                       doutc(cl, "Failed partial copy (%zd)\n", bytes);
        }
  
  out:
diff --combined fs/ceph/inode.c
index 2e2a303b9e649d1c5d3b863846d801de5630f885,b1b92a948a3b84542777ecd2d440124493aaf5b9..0679240f06db924e9aba25052675268885c4bd04
@@@ -129,6 -129,8 +129,8 @@@ void ceph_as_ctx_to_req(struct ceph_mds
  struct inode *ceph_get_inode(struct super_block *sb, struct ceph_vino vino,
                             struct inode *newino)
  {
+       struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(sb);
+       struct ceph_client *cl = mdsc->fsc->client;
        struct inode *inode;
  
        if (ceph_vino_is_reserved(vino))
        }
  
        if (!inode) {
-               dout("No inode found for %llx.%llx\n", vino.ino, vino.snap);
+               doutc(cl, "no inode found for %llx.%llx\n", vino.ino, vino.snap);
                return ERR_PTR(-ENOMEM);
        }
  
-       dout("get_inode on %llu=%llx.%llx got %p new %d\n", ceph_present_inode(inode),
-            ceph_vinop(inode), inode, !!(inode->i_state & I_NEW));
+       doutc(cl, "on %llx=%llx.%llx got %p new %d\n",
+             ceph_present_inode(inode), ceph_vinop(inode), inode,
+             !!(inode->i_state & I_NEW));
        return inode;
  }
  
   */
  struct inode *ceph_get_snapdir(struct inode *parent)
  {
+       struct ceph_client *cl = ceph_inode_to_client(parent);
        struct ceph_vino vino = {
                .ino = ceph_ino(parent),
                .snap = CEPH_SNAPDIR,
                return inode;
  
        if (!S_ISDIR(parent->i_mode)) {
-               pr_warn_once("bad snapdir parent type (mode=0%o)\n",
-                            parent->i_mode);
+               pr_warn_once_client(cl, "bad snapdir parent type (mode=0%o)\n",
+                                   parent->i_mode);
                goto err;
        }
  
        if (!(inode->i_state & I_NEW) && !S_ISDIR(inode->i_mode)) {
-               pr_warn_once("bad snapdir inode type (mode=0%o)\n",
-                            inode->i_mode);
+               pr_warn_once_client(cl, "bad snapdir inode type (mode=0%o)\n",
+                                   inode->i_mode);
                goto err;
        }
  
        inode->i_mode = parent->i_mode;
        inode->i_uid = parent->i_uid;
        inode->i_gid = parent->i_gid;
 -      inode->i_mtime = parent->i_mtime;
 +      inode_set_mtime_to_ts(inode, inode_get_mtime(parent));
        inode_set_ctime_to_ts(inode, inode_get_ctime(parent));
 -      inode->i_atime = parent->i_atime;
 +      inode_set_atime_to_ts(inode, inode_get_atime(parent));
        ci->i_rbytes = 0;
        ci->i_btime = ceph_inode(parent)->i_btime;
  
                        inode->i_flags |= S_ENCRYPTED;
                        ci->fscrypt_auth_len = pci->fscrypt_auth_len;
                } else {
-                       dout("Failed to alloc snapdir fscrypt_auth\n");
+                       doutc(cl, "Failed to alloc snapdir fscrypt_auth\n");
                        ret = -ENOMEM;
                        goto err;
                }
@@@ -249,6 -253,8 +253,8 @@@ const struct inode_operations ceph_file
  static struct ceph_inode_frag *__get_or_create_frag(struct ceph_inode_info *ci,
                                                    u32 f)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct rb_node **p;
        struct rb_node *parent = NULL;
        struct ceph_inode_frag *frag;
        rb_link_node(&frag->node, parent, p);
        rb_insert_color(&frag->node, &ci->i_fragtree);
  
-       dout("get_or_create_frag added %llx.%llx frag %x\n",
-            ceph_vinop(&ci->netfs.inode), f);
+       doutc(cl, "added %p %llx.%llx frag %x\n", inode, ceph_vinop(inode), f);
        return frag;
  }
  
@@@ -313,6 -318,7 +318,7 @@@ struct ceph_inode_frag *__ceph_find_fra
  static u32 __ceph_choose_frag(struct ceph_inode_info *ci, u32 v,
                              struct ceph_inode_frag *pfrag, int *found)
  {
+       struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
        u32 t = ceph_frag_make(0, 0);
        struct ceph_inode_frag *frag;
        unsigned nway, i;
  
                /* choose child */
                nway = 1 << frag->split_by;
-               dout("choose_frag(%x) %x splits by %d (%d ways)\n", v, t,
-                    frag->split_by, nway);
+               doutc(cl, "frag(%x) %x splits by %d (%d ways)\n", v, t,
+                     frag->split_by, nway);
                for (i = 0; i < nway; i++) {
                        n = ceph_frag_make_child(t, frag->split_by, i);
                        if (ceph_frag_contains_value(n, v)) {
                }
                BUG_ON(i == nway);
        }
-       dout("choose_frag(%x) = %x\n", v, t);
+       doutc(cl, "frag(%x) = %x\n", v, t);
  
        return t;
  }
@@@ -371,6 -377,7 +377,7 @@@ static int ceph_fill_dirfrag(struct ino
                             struct ceph_mds_reply_dirfrag *dirinfo)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_frag *frag;
        u32 id = le32_to_cpu(dirinfo->frag);
        int mds = le32_to_cpu(dirinfo->auth);
                        goto out;
                if (frag->split_by == 0) {
                        /* tree leaf, remove */
-                       dout("fill_dirfrag removed %llx.%llx frag %x"
-                            " (no ref)\n", ceph_vinop(inode), id);
+                       doutc(cl, "removed %p %llx.%llx frag %x (no ref)\n",
+                             inode, ceph_vinop(inode), id);
                        rb_erase(&frag->node, &ci->i_fragtree);
                        kfree(frag);
                } else {
                        /* tree branch, keep and clear */
-                       dout("fill_dirfrag cleared %llx.%llx frag %x"
-                            " referral\n", ceph_vinop(inode), id);
+                       doutc(cl, "cleared %p %llx.%llx frag %x referral\n",
+                             inode, ceph_vinop(inode), id);
                        frag->mds = -1;
                        frag->ndist = 0;
                }
        if (IS_ERR(frag)) {
                /* this is not the end of the world; we can continue
                   with bad/inaccurate delegation info */
-               pr_err("fill_dirfrag ENOMEM on mds ref %llx.%llx fg %x\n",
-                      ceph_vinop(inode), le32_to_cpu(dirinfo->frag));
+               pr_err_client(cl, "ENOMEM on mds ref %p %llx.%llx fg %x\n",
+                             inode, ceph_vinop(inode),
+                             le32_to_cpu(dirinfo->frag));
                err = -ENOMEM;
                goto out;
        }
        frag->ndist = min_t(u32, ndist, CEPH_MAX_DIRFRAG_REP);
        for (i = 0; i < frag->ndist; i++)
                frag->dist[i] = le32_to_cpu(dirinfo->dist[i]);
-       dout("fill_dirfrag %llx.%llx frag %x ndist=%d\n",
-            ceph_vinop(inode), frag->frag, frag->ndist);
+       doutc(cl, "%p %llx.%llx frag %x ndist=%d\n", inode,
+             ceph_vinop(inode), frag->frag, frag->ndist);
  
  out:
        mutex_unlock(&ci->i_fragtree_mutex);
@@@ -454,6 -462,7 +462,7 @@@ static int ceph_fill_fragtree(struct in
                              struct ceph_frag_tree_head *fragtree,
                              struct ceph_mds_reply_dirfrag *dirinfo)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_inode_frag *frag, *prev_frag = NULL;
        struct rb_node *rb_node;
                     frag_tree_split_cmp, NULL);
        }
  
-       dout("fill_fragtree %llx.%llx\n", ceph_vinop(inode));
+       doutc(cl, "%p %llx.%llx\n", inode, ceph_vinop(inode));
        rb_node = rb_first(&ci->i_fragtree);
        for (i = 0; i < nsplits; i++) {
                id = le32_to_cpu(fragtree->splits[i].frag);
                split_by = le32_to_cpu(fragtree->splits[i].by);
                if (split_by == 0 || ceph_frag_bits(id) + split_by > 24) {
-                       pr_err("fill_fragtree %llx.%llx invalid split %d/%u, "
-                              "frag %x split by %d\n", ceph_vinop(inode),
-                              i, nsplits, id, split_by);
+                       pr_err_client(cl, "%p %llx.%llx invalid split %d/%u, "
+                              "frag %x split by %d\n", inode,
+                              ceph_vinop(inode), i, nsplits, id, split_by);
                        continue;
                }
                frag = NULL;
                if (frag->split_by == 0)
                        ci->i_fragtree_nsplits++;
                frag->split_by = split_by;
-               dout(" frag %x split by %d\n", frag->frag, frag->split_by);
+               doutc(cl, " frag %x split by %d\n", frag->frag, frag->split_by);
                prev_frag = frag;
        }
        while (rb_node) {
@@@ -554,6 -563,7 +563,7 @@@ out_unlock
   */
  struct inode *ceph_alloc_inode(struct super_block *sb)
  {
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(sb);
        struct ceph_inode_info *ci;
        int i;
  
        if (!ci)
                return NULL;
  
-       dout("alloc_inode %p\n", &ci->netfs.inode);
+       doutc(fsc->client, "%p\n", &ci->netfs.inode);
  
        /* Set parameters for the netfs library */
        netfs_inode_init(&ci->netfs, &ceph_netfs_ops);
@@@ -675,10 -685,11 +685,11 @@@ void ceph_evict_inode(struct inode *ino
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_frag *frag;
        struct rb_node *n;
  
-       dout("evict_inode %p ino %llx.%llx\n", inode, ceph_vinop(inode));
+       doutc(cl, "%p ino %llx.%llx\n", inode, ceph_vinop(inode));
  
        percpu_counter_dec(&mdsc->metric.total_inodes);
  
         */
        if (ci->i_snap_realm) {
                if (ceph_snap(inode) == CEPH_NOSNAP) {
-                       dout(" dropping residual ref to snap realm %p\n",
-                            ci->i_snap_realm);
+                       doutc(cl, " dropping residual ref to snap realm %p\n",
+                             ci->i_snap_realm);
                        ceph_change_snap_realm(inode, NULL);
                } else {
                        ceph_put_snapid_map(mdsc, ci->i_snapid_map);
@@@ -743,15 -754,16 +754,16 @@@ static inline blkcnt_t calc_inode_block
  int ceph_fill_file_size(struct inode *inode, int issued,
                        u32 truncate_seq, u64 truncate_size, u64 size)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        int queue_trunc = 0;
        loff_t isize = i_size_read(inode);
  
        if (ceph_seq_cmp(truncate_seq, ci->i_truncate_seq) > 0 ||
            (truncate_seq == ci->i_truncate_seq && size > isize)) {
-               dout("size %lld -> %llu\n", isize, size);
+               doutc(cl, "size %lld -> %llu\n", isize, size);
                if (size > 0 && S_ISDIR(inode->i_mode)) {
-                       pr_err("fill_file_size non-zero size for directory\n");
+                       pr_err_client(cl, "non-zero size for directory\n");
                        size = 0;
                }
                i_size_write(inode, size);
                        ceph_fscache_update(inode);
                ci->i_reported_size = size;
                if (truncate_seq != ci->i_truncate_seq) {
-                       dout("%s truncate_seq %u -> %u\n", __func__,
-                            ci->i_truncate_seq, truncate_seq);
+                       doutc(cl, "truncate_seq %u -> %u\n",
+                             ci->i_truncate_seq, truncate_seq);
                        ci->i_truncate_seq = truncate_seq;
  
                        /* the MDS should have revoked these caps */
         * anyway.
         */
        if (ceph_seq_cmp(truncate_seq, ci->i_truncate_seq) >= 0) {
-               dout("%s truncate_size %lld -> %llu, encrypted %d\n", __func__,
-                    ci->i_truncate_size, truncate_size, !!IS_ENCRYPTED(inode));
+               doutc(cl, "truncate_size %lld -> %llu, encrypted %d\n",
+                     ci->i_truncate_size, truncate_size,
+                     !!IS_ENCRYPTED(inode));
  
                ci->i_truncate_size = truncate_size;
  
                if (IS_ENCRYPTED(inode)) {
-                       dout("%s truncate_pagecache_size %lld -> %llu\n",
-                            __func__, ci->i_truncate_pagecache_size, size);
+                       doutc(cl, "truncate_pagecache_size %lld -> %llu\n",
+                             ci->i_truncate_pagecache_size, size);
                        ci->i_truncate_pagecache_size = size;
                } else {
                        ci->i_truncate_pagecache_size = truncate_size;
@@@ -814,6 -827,7 +827,7 @@@ void ceph_fill_file_time(struct inode *
                         u64 time_warp_seq, struct timespec64 *ctime,
                         struct timespec64 *mtime, struct timespec64 *atime)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct timespec64 ictime = inode_get_ctime(inode);
        int warn = 0;
                      CEPH_CAP_XATTR_EXCL)) {
                if (ci->i_version == 0 ||
                    timespec64_compare(ctime, &ictime) > 0) {
-                       dout("ctime %lld.%09ld -> %lld.%09ld inc w/ cap\n",
+                       doutc(cl, "ctime %lld.%09ld -> %lld.%09ld inc w/ cap\n",
                             ictime.tv_sec, ictime.tv_nsec,
                             ctime->tv_sec, ctime->tv_nsec);
                        inode_set_ctime_to_ts(inode, *ctime);
                if (ci->i_version == 0 ||
                    ceph_seq_cmp(time_warp_seq, ci->i_time_warp_seq) > 0) {
                        /* the MDS did a utimes() */
-                       dout("mtime %lld.%09ld -> %lld.%09ld "
-                            "tw %d -> %d\n",
+                       doutc(cl, "mtime %lld.%09ld -> %lld.%09ld tw %d -> %d\n",
 -                            inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
 -                            mtime->tv_sec, mtime->tv_nsec,
 -                            ci->i_time_warp_seq, (int)time_warp_seq);
 +                           inode_get_mtime_sec(inode),
 +                           inode_get_mtime_nsec(inode),
 +                           mtime->tv_sec, mtime->tv_nsec,
 +                           ci->i_time_warp_seq, (int)time_warp_seq);
  
 -                      inode->i_mtime = *mtime;
 -                      inode->i_atime = *atime;
 +                      inode_set_mtime_to_ts(inode, *mtime);
 +                      inode_set_atime_to_ts(inode, *atime);
                        ci->i_time_warp_seq = time_warp_seq;
                } else if (time_warp_seq == ci->i_time_warp_seq) {
 +                      struct timespec64       ts;
 +
                        /* nobody did utimes(); take the max */
 -                      if (timespec64_compare(mtime, &inode->i_mtime) > 0) {
 +                      ts = inode_get_mtime(inode);
 +                      if (timespec64_compare(mtime, &ts) > 0) {
-                               dout("mtime %lld.%09ld -> %lld.%09ld inc\n",
+                               doutc(cl, "mtime %lld.%09ld -> %lld.%09ld inc\n",
 -                                    inode->i_mtime.tv_sec,
 -                                    inode->i_mtime.tv_nsec,
 -                                    mtime->tv_sec, mtime->tv_nsec);
 -                              inode->i_mtime = *mtime;
 +                                   ts.tv_sec, ts.tv_nsec,
 +                                   mtime->tv_sec, mtime->tv_nsec);
 +                              inode_set_mtime_to_ts(inode, *mtime);
                        }
 -                      if (timespec64_compare(atime, &inode->i_atime) > 0) {
 +                      ts = inode_get_atime(inode);
 +                      if (timespec64_compare(atime, &ts) > 0) {
-                               dout("atime %lld.%09ld -> %lld.%09ld inc\n",
+                               doutc(cl, "atime %lld.%09ld -> %lld.%09ld inc\n",
 -                                    inode->i_atime.tv_sec,
 -                                    inode->i_atime.tv_nsec,
 -                                    atime->tv_sec, atime->tv_nsec);
 -                              inode->i_atime = *atime;
 +                                   ts.tv_sec, ts.tv_nsec,
 +                                   atime->tv_sec, atime->tv_nsec);
 +                              inode_set_atime_to_ts(inode, *atime);
                        }
                } else if (issued & CEPH_CAP_FILE_EXCL) {
                        /* we did a utimes(); ignore mds values */
                /* we have no write|excl caps; whatever the MDS says is true */
                if (ceph_seq_cmp(time_warp_seq, ci->i_time_warp_seq) >= 0) {
                        inode_set_ctime_to_ts(inode, *ctime);
 -                      inode->i_mtime = *mtime;
 -                      inode->i_atime = *atime;
 +                      inode_set_mtime_to_ts(inode, *mtime);
 +                      inode_set_atime_to_ts(inode, *atime);
                        ci->i_time_warp_seq = time_warp_seq;
                } else {
                        warn = 1;
                }
        }
        if (warn) /* time_warp_seq shouldn't go backwards */
-               dout("%p mds time_warp_seq %llu < %u\n",
-                    inode, time_warp_seq, ci->i_time_warp_seq);
+               doutc(cl, "%p mds time_warp_seq %llu < %u\n", inode,
+                     time_warp_seq, ci->i_time_warp_seq);
  }
  
  #if IS_ENABLED(CONFIG_FS_ENCRYPTION)
- static int decode_encrypted_symlink(const char *encsym, int enclen, u8 **decsym)
+ static int decode_encrypted_symlink(struct ceph_mds_client *mdsc,
+                                   const char *encsym,
+                                   int enclen, u8 **decsym)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int declen;
        u8 *sym;
  
  
        declen = ceph_base64_decode(encsym, enclen, sym);
        if (declen < 0) {
-               pr_err("%s: can't decode symlink (%d). Content: %.*s\n",
-                      __func__, declen, enclen, encsym);
+               pr_err_client(cl,
+                       "can't decode symlink (%d). Content: %.*s\n",
+                       declen, enclen, encsym);
                kfree(sym);
                return -EIO;
        }
        return declen;
  }
  #else
- static int decode_encrypted_symlink(const char *encsym, int symlen, u8 **decsym)
+ static int decode_encrypted_symlink(struct ceph_mds_client *mdsc,
+                                   const char *encsym,
+                                   int symlen, u8 **decsym)
  {
        return -EOPNOTSUPP;
  }
@@@ -921,6 -937,7 +940,7 @@@ int ceph_fill_inode(struct inode *inode
                    struct ceph_cap_reservation *caps_reservation)
  {
        struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_reply_inode *info = iinfo->in;
        struct ceph_inode_info *ci = ceph_inode(inode);
        int issued, new_issued, info_caps;
  
        lockdep_assert_held(&mdsc->snap_rwsem);
  
-       dout("%s %p ino %llx.%llx v %llu had %llu\n", __func__,
-            inode, ceph_vinop(inode), le64_to_cpu(info->version),
-            ci->i_version);
+       doutc(cl, "%p ino %llx.%llx v %llu had %llu\n", inode, ceph_vinop(inode),
+             le64_to_cpu(info->version), ci->i_version);
  
        /* Once I_NEW is cleared, we can't change type or dev numbers */
        if (inode->i_state & I_NEW) {
                inode->i_mode = mode;
        } else {
                if (inode_wrong_type(inode, mode)) {
-                       pr_warn_once("inode type changed! (ino %llx.%llx is 0%o, mds says 0%o)\n",
-                                    ceph_vinop(inode), inode->i_mode, mode);
+                       pr_warn_once_client(cl,
+                               "inode type changed! (ino %llx.%llx is 0%o, mds says 0%o)\n",
+                               ceph_vinop(inode), inode->i_mode, mode);
                        return -ESTALE;
                }
  
                if ((S_ISCHR(mode) || S_ISBLK(mode)) && inode->i_rdev != rdev) {
-                       pr_warn_once("dev inode rdev changed! (ino %llx.%llx is %u:%u, mds says %u:%u)\n",
-                                    ceph_vinop(inode), MAJOR(inode->i_rdev),
-                                    MINOR(inode->i_rdev), MAJOR(rdev),
-                                    MINOR(rdev));
+                       pr_warn_once_client(cl,
+                               "dev inode rdev changed! (ino %llx.%llx is %u:%u, mds says %u:%u)\n",
+                               ceph_vinop(inode), MAJOR(inode->i_rdev),
+                               MINOR(inode->i_rdev), MAJOR(rdev),
+                               MINOR(rdev));
                        return -ESTALE;
                }
        }
        if (iinfo->xattr_len > 4) {
                xattr_blob = ceph_buffer_new(iinfo->xattr_len, GFP_NOFS);
                if (!xattr_blob)
-                       pr_err("%s ENOMEM xattr blob %d bytes\n", __func__,
-                              iinfo->xattr_len);
+                       pr_err_client(cl, "ENOMEM xattr blob %d bytes\n",
+                                     iinfo->xattr_len);
        }
  
        if (iinfo->pool_ns_len > 0)
                inode->i_mode = mode;
                inode->i_uid = make_kuid(&init_user_ns, le32_to_cpu(info->uid));
                inode->i_gid = make_kgid(&init_user_ns, le32_to_cpu(info->gid));
-               dout("%p mode 0%o uid.gid %d.%d\n", inode, inode->i_mode,
-                    from_kuid(&init_user_ns, inode->i_uid),
-                    from_kgid(&init_user_ns, inode->i_gid));
+               doutc(cl, "%p %llx.%llx mode 0%o uid.gid %d.%d\n", inode,
+                     ceph_vinop(inode), inode->i_mode,
+                     from_kuid(&init_user_ns, inode->i_uid),
+                     from_kgid(&init_user_ns, inode->i_gid));
                ceph_decode_timespec64(&ci->i_btime, &iinfo->btime);
                ceph_decode_timespec64(&ci->i_snap_btime, &iinfo->snap_btime);
        }
                        if (size == round_up(fsize, CEPH_FSCRYPT_BLOCK_SIZE)) {
                                size = fsize;
                        } else {
-                               pr_warn("fscrypt size mismatch: size=%llu fscrypt_file=%llu, discarding fscrypt_file size.\n",
+                               pr_warn_client(cl,
+                                       "fscrypt size mismatch: size=%llu fscrypt_file=%llu, discarding fscrypt_file size.\n",
                                        info->size, size);
                        }
                }
                /* only update max_size on auth cap */
                if ((info->cap.flags & CEPH_CAP_FLAG_AUTH) &&
                    ci->i_max_size != le64_to_cpu(info->max_size)) {
-                       dout("max_size %lld -> %llu\n", ci->i_max_size,
-                                       le64_to_cpu(info->max_size));
+                       doutc(cl, "max_size %lld -> %llu\n",
+                           ci->i_max_size, le64_to_cpu(info->max_size));
                        ci->i_max_size = le64_to_cpu(info->max_size);
                }
        }
  
                        if (IS_ENCRYPTED(inode)) {
                                if (symlen != i_size_read(inode))
-                                       pr_err("%s %llx.%llx BAD symlink size %lld\n",
-                                               __func__, ceph_vinop(inode),
+                                       pr_err_client(cl,
+                                               "%p %llx.%llx BAD symlink size %lld\n",
+                                               inode, ceph_vinop(inode),
                                                i_size_read(inode));
  
-                               err = decode_encrypted_symlink(iinfo->symlink,
+                               err = decode_encrypted_symlink(mdsc, iinfo->symlink,
                                                               symlen, (u8 **)&sym);
                                if (err < 0) {
-                                       pr_err("%s decoding encrypted symlink failed: %d\n",
-                                               __func__, err);
+                                       pr_err_client(cl,
+                                               "decoding encrypted symlink failed: %d\n",
+                                               err);
                                        goto out;
                                }
                                symlen = err;
                                inode->i_blocks = calc_inode_blocks(symlen);
                        } else {
                                if (symlen != i_size_read(inode)) {
-                                       pr_err("%s %llx.%llx BAD symlink size %lld\n",
-                                               __func__, ceph_vinop(inode),
+                                       pr_err_client(cl,
+                                               "%p %llx.%llx BAD symlink size %lld\n",
+                                               inode, ceph_vinop(inode),
                                                i_size_read(inode));
                                        i_size_write(inode, symlen);
                                        inode->i_blocks = calc_inode_blocks(symlen);
                inode->i_fop = &ceph_dir_fops;
                break;
        default:
-               pr_err("%s %llx.%llx BAD mode 0%o\n", __func__,
-                      ceph_vinop(inode), inode->i_mode);
+               pr_err_client(cl, "%p %llx.%llx BAD mode 0%o\n", inode,
+                             ceph_vinop(inode), inode->i_mode);
        }
  
        /* were we issued a capability? */
                            (info_caps & CEPH_CAP_FILE_SHARED) &&
                            (issued & CEPH_CAP_FILE_EXCL) == 0 &&
                            !__ceph_dir_is_complete(ci)) {
-                               dout(" marking %p complete (empty)\n", inode);
+                               doutc(cl, " marking %p complete (empty)\n",
+                                     inode);
                                i_size_write(inode, 0);
                                __ceph_dir_set_complete(ci,
                                        atomic64_read(&ci->i_release_count),
  
                        wake = true;
                } else {
-                       dout(" %p got snap_caps %s\n", inode,
-                            ceph_cap_string(info_caps));
+                       doutc(cl, " %p got snap_caps %s\n", inode,
+                             ceph_cap_string(info_caps));
                        ci->i_snap_caps |= info_caps;
                }
        }
  
        if (cap_fmode >= 0) {
                if (!info_caps)
-                       pr_warn("mds issued no caps on %llx.%llx\n",
-                               ceph_vinop(inode));
+                       pr_warn_client(cl, "mds issued no caps on %llx.%llx\n",
+                                      ceph_vinop(inode));
                __ceph_touch_fmode(ci, mdsc, cap_fmode);
        }
  
@@@ -1315,14 -1339,14 +1342,14 @@@ static void __update_dentry_lease(struc
                                  unsigned long from_time,
                                  struct ceph_mds_session **old_lease_session)
  {
+       struct ceph_client *cl = ceph_inode_to_client(dir);
        struct ceph_dentry_info *di = ceph_dentry(dentry);
        unsigned mask = le16_to_cpu(lease->mask);
        long unsigned duration = le32_to_cpu(lease->duration_ms);
        long unsigned ttl = from_time + (duration * HZ) / 1000;
        long unsigned half_ttl = from_time + (duration * HZ / 2) / 1000;
  
-       dout("update_dentry_lease %p duration %lu ms ttl %lu\n",
-            dentry, duration, ttl);
+       doutc(cl, "%p duration %lu ms ttl %lu\n", dentry, duration, ttl);
  
        /* only track leases on regular dentries */
        if (ceph_snap(dir) != CEPH_NOSNAP)
@@@ -1423,6 -1447,7 +1450,7 @@@ out_unlock
   */
  static int splice_dentry(struct dentry **pdn, struct inode *in)
  {
+       struct ceph_client *cl = ceph_inode_to_client(in);
        struct dentry *dn = *pdn;
        struct dentry *realdn;
  
                d_drop(dn);
        realdn = d_splice_alias(in, dn);
        if (IS_ERR(realdn)) {
-               pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n",
-                      PTR_ERR(realdn), dn, in, ceph_vinop(in));
+               pr_err_client(cl, "error %ld %p inode %p ino %llx.%llx\n",
+                             PTR_ERR(realdn), dn, in, ceph_vinop(in));
                return PTR_ERR(realdn);
        }
  
        if (realdn) {
-               dout("dn %p (%d) spliced with %p (%d) "
-                    "inode %p ino %llx.%llx\n",
-                    dn, d_count(dn),
-                    realdn, d_count(realdn),
-                    d_inode(realdn), ceph_vinop(d_inode(realdn)));
+               doutc(cl, "dn %p (%d) spliced with %p (%d) inode %p ino %llx.%llx\n",
+                     dn, d_count(dn), realdn, d_count(realdn),
+                     d_inode(realdn), ceph_vinop(d_inode(realdn)));
                dput(dn);
                *pdn = realdn;
        } else {
                BUG_ON(!ceph_dentry(dn));
-               dout("dn %p attached to %p ino %llx.%llx\n",
-                    dn, d_inode(dn), ceph_vinop(d_inode(dn)));
+               doutc(cl, "dn %p attached to %p ino %llx.%llx\n", dn,
+                     d_inode(dn), ceph_vinop(d_inode(dn)));
        }
        return 0;
  }
@@@ -1492,14 -1515,15 +1518,15 @@@ int ceph_fill_trace(struct super_block 
        struct ceph_mds_reply_info_parsed *rinfo = &req->r_reply_info;
        struct inode *in = NULL;
        struct ceph_vino tvino, dvino;
-       struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(sb);
+       struct ceph_client *cl = fsc->client;
        int err = 0;
  
-       dout("fill_trace %p is_dentry %d is_target %d\n", req,
-            rinfo->head->is_dentry, rinfo->head->is_target);
+       doutc(cl, "%p is_dentry %d is_target %d\n", req,
+             rinfo->head->is_dentry, rinfo->head->is_target);
  
        if (!rinfo->head->is_target && !rinfo->head->is_dentry) {
-               dout("fill_trace reply is empty!\n");
+               doutc(cl, "reply is empty!\n");
                if (rinfo->head->result == 0 && req->r_parent)
                        ceph_invalidate_dir_request(req);
                return 0;
                        tvino.snap = le64_to_cpu(rinfo->targeti.in->snapid);
  retry_lookup:
                        dn = d_lookup(parent, &dname);
-                       dout("d_lookup on parent=%p name=%.*s got %p\n",
-                            parent, dname.len, dname.name, dn);
+                       doutc(cl, "d_lookup on parent=%p name=%.*s got %p\n",
+                             parent, dname.len, dname.name, dn);
  
                        if (!dn) {
                                dn = d_alloc(parent, &dname);
-                               dout("d_alloc %p '%.*s' = %p\n", parent,
-                                    dname.len, dname.name, dn);
+                               doutc(cl, "d_alloc %p '%.*s' = %p\n", parent,
+                                     dname.len, dname.name, dn);
                                if (!dn) {
                                        dput(parent);
                                        ceph_fname_free_buffer(dir, &oname);
                        } else if (d_really_is_positive(dn) &&
                                   (ceph_ino(d_inode(dn)) != tvino.ino ||
                                    ceph_snap(d_inode(dn)) != tvino.snap)) {
-                               dout(" dn %p points to wrong inode %p\n",
-                                    dn, d_inode(dn));
+                               doutc(cl, " dn %p points to wrong inode %p\n",
+                                     dn, d_inode(dn));
                                ceph_dir_clear_ordered(dir);
                                d_delete(dn);
                                dput(dn);
                                 rinfo->head->result == 0) ?  req->r_fmode : -1,
                                &req->r_caps_reservation);
                if (err < 0) {
-                       pr_err("ceph_fill_inode badness %p %llx.%llx\n",
-                               in, ceph_vinop(in));
+                       pr_err_client(cl, "badness %p %llx.%llx\n", in,
+                                     ceph_vinop(in));
                        req->r_target_inode = NULL;
                        if (in->i_state & I_NEW)
                                discard_new_inode(in);
                have_lease = have_dir_cap ||
                        le32_to_cpu(rinfo->dlease->duration_ms);
                if (!have_lease)
-                       dout("fill_trace  no dentry lease or dir cap\n");
+                       doutc(cl, "no dentry lease or dir cap\n");
  
                /* rename? */
                if (req->r_old_dentry && req->r_op == CEPH_MDS_OP_RENAME) {
                        struct inode *olddir = req->r_old_dentry_dir;
                        BUG_ON(!olddir);
  
-                       dout(" src %p '%pd' dst %p '%pd'\n",
-                            req->r_old_dentry,
-                            req->r_old_dentry,
-                            dn, dn);
-                       dout("fill_trace doing d_move %p -> %p\n",
-                            req->r_old_dentry, dn);
+                       doutc(cl, " src %p '%pd' dst %p '%pd'\n",
+                             req->r_old_dentry, req->r_old_dentry, dn, dn);
+                       doutc(cl, "doing d_move %p -> %p\n", req->r_old_dentry, dn);
  
                        /* d_move screws up sibling dentries' offsets */
                        ceph_dir_clear_ordered(dir);
                        ceph_dir_clear_ordered(olddir);
  
                        d_move(req->r_old_dentry, dn);
-                       dout(" src %p '%pd' dst %p '%pd'\n",
-                            req->r_old_dentry,
-                            req->r_old_dentry,
-                            dn, dn);
+                       doutc(cl, " src %p '%pd' dst %p '%pd'\n",
+                             req->r_old_dentry, req->r_old_dentry, dn, dn);
  
                        /* ensure target dentry is invalidated, despite
                           rehashing bug in vfs_rename_dir */
                        ceph_invalidate_dentry_lease(dn);
  
-                       dout("dn %p gets new offset %lld\n", req->r_old_dentry,
-                            ceph_dentry(req->r_old_dentry)->offset);
+                       doutc(cl, "dn %p gets new offset %lld\n",
+                             req->r_old_dentry,
+                             ceph_dentry(req->r_old_dentry)->offset);
  
                        /* swap r_dentry and r_old_dentry in case that
                         * splice_dentry() gets called later. This is safe
  
                /* null dentry? */
                if (!rinfo->head->is_target) {
-                       dout("fill_trace null dentry\n");
+                       doutc(cl, "null dentry\n");
                        if (d_really_is_positive(dn)) {
-                               dout("d_delete %p\n", dn);
+                               doutc(cl, "d_delete %p\n", dn);
                                ceph_dir_clear_ordered(dir);
                                d_delete(dn);
                        } else if (have_lease) {
                                goto done;
                        dn = req->r_dentry;  /* may have spliced */
                } else if (d_really_is_positive(dn) && d_inode(dn) != in) {
-                       dout(" %p links to %p %llx.%llx, not %llx.%llx\n",
-                            dn, d_inode(dn), ceph_vinop(d_inode(dn)),
-                            ceph_vinop(in));
+                       doutc(cl, " %p links to %p %llx.%llx, not %llx.%llx\n",
+                             dn, d_inode(dn), ceph_vinop(d_inode(dn)),
+                             ceph_vinop(in));
                        d_invalidate(dn);
                        have_lease = false;
                }
                                            rinfo->dlease, session,
                                            req->r_request_started);
                }
-               dout(" final dn %p\n", dn);
+               doutc(cl, " final dn %p\n", dn);
        } else if ((req->r_op == CEPH_MDS_OP_LOOKUPSNAP ||
                    req->r_op == CEPH_MDS_OP_MKSNAP) &&
                   test_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags) &&
                BUG_ON(!dir);
                BUG_ON(ceph_snap(dir) != CEPH_SNAPDIR);
                BUG_ON(!req->r_dentry);
-               dout(" linking snapped dir %p to dn %p\n", in, req->r_dentry);
+               doutc(cl, " linking snapped dir %p to dn %p\n", in,
+                     req->r_dentry);
                ceph_dir_clear_ordered(dir);
                ihold(in);
                err = splice_dentry(&req->r_dentry, in);
                                            &dvino, ptvino);
        }
  done:
-       dout("fill_trace done err=%d\n", err);
+       doutc(cl, "done err=%d\n", err);
        return err;
  }
  
@@@ -1778,6 -1799,7 +1802,7 @@@ static int readdir_prepopulate_inodes_o
                                           struct ceph_mds_session *session)
  {
        struct ceph_mds_reply_info_parsed *rinfo = &req->r_reply_info;
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        int i, err = 0;
  
        for (i = 0; i < rinfo->dir_nr; i++) {
                in = ceph_get_inode(req->r_dentry->d_sb, vino, NULL);
                if (IS_ERR(in)) {
                        err = PTR_ERR(in);
-                       dout("new_inode badness got %d\n", err);
+                       doutc(cl, "badness got %d\n", err);
                        continue;
                }
                rc = ceph_fill_inode(in, NULL, &rde->inode, NULL, session,
                                     -1, &req->r_caps_reservation);
                if (rc < 0) {
-                       pr_err("ceph_fill_inode badness on %p got %d\n",
-                              in, rc);
+                       pr_err_client(cl, "inode badness on %p got %d\n", in,
+                                     rc);
                        err = rc;
                        if (in->i_state & I_NEW) {
                                ihold(in);
@@@ -1828,6 -1850,7 +1853,7 @@@ static int fill_readdir_cache(struct in
                              struct ceph_readdir_cache_control *ctl,
                              struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = ceph_inode_to_client(dir);
        struct ceph_inode_info *ci = ceph_inode(dir);
        unsigned nsize = PAGE_SIZE / sizeof(struct dentry*);
        unsigned idx = ctl->index % nsize;
  
        if (req->r_dir_release_cnt == atomic64_read(&ci->i_release_count) &&
            req->r_dir_ordered_cnt == atomic64_read(&ci->i_ordered_count)) {
-               dout("readdir cache dn %p idx %d\n", dn, ctl->index);
+               doutc(cl, "dn %p idx %d\n", dn, ctl->index);
                ctl->dentries[idx] = dn;
                ctl->index++;
        } else {
-               dout("disable readdir cache\n");
+               doutc(cl, "disable readdir cache\n");
                ctl->index = -1;
        }
        return 0;
@@@ -1870,6 -1893,7 +1896,7 @@@ int ceph_readdir_prepopulate(struct cep
        struct inode *inode = d_inode(parent);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_mds_reply_info_parsed *rinfo = &req->r_reply_info;
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        struct qstr dname;
        struct dentry *dn;
        struct inode *in;
  
        if (rinfo->dir_dir &&
            le32_to_cpu(rinfo->dir_dir->frag) != frag) {
-               dout("readdir_prepopulate got new frag %x -> %x\n",
-                    frag, le32_to_cpu(rinfo->dir_dir->frag));
+               doutc(cl, "got new frag %x -> %x\n", frag,
+                           le32_to_cpu(rinfo->dir_dir->frag));
                frag = le32_to_cpu(rinfo->dir_dir->frag);
                if (!rinfo->hash_order)
                        req->r_readdir_offset = 2;
        }
  
        if (le32_to_cpu(rinfo->head->op) == CEPH_MDS_OP_LSSNAP) {
-               dout("readdir_prepopulate %d items under SNAPDIR dn %p\n",
-                    rinfo->dir_nr, parent);
+               doutc(cl, "%d items under SNAPDIR dn %p\n",
+                     rinfo->dir_nr, parent);
        } else {
-               dout("readdir_prepopulate %d items under dn %p\n",
-                    rinfo->dir_nr, parent);
+               doutc(cl, "%d items under dn %p\n", rinfo->dir_nr, parent);
                if (rinfo->dir_dir)
                        ceph_fill_dirfrag(d_inode(parent), rinfo->dir_dir);
  
  
  retry_lookup:
                dn = d_lookup(parent, &dname);
-               dout("d_lookup on parent=%p name=%.*s got %p\n",
-                    parent, dname.len, dname.name, dn);
+               doutc(cl, "d_lookup on parent=%p name=%.*s got %p\n",
+                     parent, dname.len, dname.name, dn);
  
                if (!dn) {
                        dn = d_alloc(parent, &dname);
-                       dout("d_alloc %p '%.*s' = %p\n", parent,
-                            dname.len, dname.name, dn);
+                       doutc(cl, "d_alloc %p '%.*s' = %p\n", parent,
+                             dname.len, dname.name, dn);
                        if (!dn) {
-                               dout("d_alloc badness\n");
+                               doutc(cl, "d_alloc badness\n");
                                err = -ENOMEM;
                                goto out;
                        }
                           (ceph_ino(d_inode(dn)) != tvino.ino ||
                            ceph_snap(d_inode(dn)) != tvino.snap)) {
                        struct ceph_dentry_info *di = ceph_dentry(dn);
-                       dout(" dn %p points to wrong inode %p\n",
-                            dn, d_inode(dn));
+                       doutc(cl, " dn %p points to wrong inode %p\n",
+                             dn, d_inode(dn));
  
                        spin_lock(&dn->d_lock);
                        if (di->offset > 0 &&
                } else {
                        in = ceph_get_inode(parent->d_sb, tvino, NULL);
                        if (IS_ERR(in)) {
-                               dout("new_inode badness\n");
+                               doutc(cl, "new_inode badness\n");
                                d_drop(dn);
                                dput(dn);
                                err = PTR_ERR(in);
                ret = ceph_fill_inode(in, NULL, &rde->inode, NULL, session,
                                      -1, &req->r_caps_reservation);
                if (ret < 0) {
-                       pr_err("ceph_fill_inode badness on %p\n", in);
+                       pr_err_client(cl, "badness on %p %llx.%llx\n", in,
+                                     ceph_vinop(in));
                        if (d_really_is_negative(dn)) {
                                if (in->i_state & I_NEW) {
                                        ihold(in);
  
                if (d_really_is_negative(dn)) {
                        if (ceph_security_xattr_deadlock(in)) {
-                               dout(" skip splicing dn %p to inode %p"
-                                    " (security xattr deadlock)\n", dn, in);
+                               doutc(cl, " skip splicing dn %p to inode %p"
+                                     " (security xattr deadlock)\n", dn, in);
                                iput(in);
                                skipped++;
                                goto next_item;
                req->r_readdir_cache_idx = cache_ctl.index;
        }
        ceph_readdir_cache_release(&cache_ctl);
-       dout("readdir_prepopulate done\n");
+       doutc(cl, "done\n");
        return err;
  }
  
  bool ceph_inode_set_size(struct inode *inode, loff_t size)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        bool ret;
  
        spin_lock(&ci->i_ceph_lock);
-       dout("set_size %p %llu -> %llu\n", inode, i_size_read(inode), size);
+       doutc(cl, "set_size %p %llu -> %llu\n", inode, i_size_read(inode), size);
        i_size_write(inode, size);
        ceph_fscache_update(inode);
        inode->i_blocks = calc_inode_blocks(size);
  
  void ceph_queue_inode_work(struct inode *inode, int work_bit)
  {
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+       struct ceph_client *cl = fsc->client;
        struct ceph_inode_info *ci = ceph_inode(inode);
        set_bit(work_bit, &ci->i_work_mask);
  
        ihold(inode);
        if (queue_work(fsc->inode_wq, &ci->i_work)) {
-               dout("queue_inode_work %p, mask=%lx\n", inode, ci->i_work_mask);
+               doutc(cl, "%p %llx.%llx mask=%lx\n", inode,
+                     ceph_vinop(inode), ci->i_work_mask);
        } else {
-               dout("queue_inode_work %p already queued, mask=%lx\n",
-                    inode, ci->i_work_mask);
+               doutc(cl, "%p %llx.%llx already queued, mask=%lx\n",
+                     inode, ceph_vinop(inode), ci->i_work_mask);
                iput(inode);
        }
  }
  
  static void ceph_do_invalidate_pages(struct inode *inode)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        u32 orig_gen;
        int check = 0;
        mutex_lock(&ci->i_truncate_mutex);
  
        if (ceph_inode_is_shutdown(inode)) {
-               pr_warn_ratelimited("%s: inode %llx.%llx is shut down\n",
-                                   __func__, ceph_vinop(inode));
+               pr_warn_ratelimited_client(cl,
+                       "%p %llx.%llx is shut down\n", inode,
+                       ceph_vinop(inode));
                mapping_set_error(inode->i_mapping, -EIO);
                truncate_pagecache(inode, 0);
                mutex_unlock(&ci->i_truncate_mutex);
        }
  
        spin_lock(&ci->i_ceph_lock);
-       dout("invalidate_pages %p gen %d revoking %d\n", inode,
-            ci->i_rdcache_gen, ci->i_rdcache_revoking);
+       doutc(cl, "%p %llx.%llx gen %d revoking %d\n", inode,
+             ceph_vinop(inode), ci->i_rdcache_gen, ci->i_rdcache_revoking);
        if (ci->i_rdcache_revoking != ci->i_rdcache_gen) {
                if (__ceph_caps_revoking_other(ci, NULL, CEPH_CAP_FILE_CACHE))
                        check = 1;
        spin_unlock(&ci->i_ceph_lock);
  
        if (invalidate_inode_pages2(inode->i_mapping) < 0) {
-               pr_err("invalidate_inode_pages2 %llx.%llx failed\n",
-                      ceph_vinop(inode));
+               pr_err_client(cl, "invalidate_inode_pages2 %llx.%llx failed\n",
+                             ceph_vinop(inode));
        }
  
        spin_lock(&ci->i_ceph_lock);
        if (orig_gen == ci->i_rdcache_gen &&
            orig_gen == ci->i_rdcache_revoking) {
-               dout("invalidate_pages %p gen %d successful\n", inode,
-                    ci->i_rdcache_gen);
+               doutc(cl, "%p %llx.%llx gen %d successful\n", inode,
+                     ceph_vinop(inode), ci->i_rdcache_gen);
                ci->i_rdcache_revoking--;
                check = 1;
        } else {
-               dout("invalidate_pages %p gen %d raced, now %d revoking %d\n",
-                    inode, orig_gen, ci->i_rdcache_gen,
-                    ci->i_rdcache_revoking);
+               doutc(cl, "%p %llx.%llx gen %d raced, now %d revoking %d\n",
+                     inode, ceph_vinop(inode), orig_gen, ci->i_rdcache_gen,
+                     ci->i_rdcache_revoking);
                if (__ceph_caps_revoking_other(ci, NULL, CEPH_CAP_FILE_CACHE))
                        check = 1;
        }
@@@ -2160,6 -2189,7 +2192,7 @@@ out
   */
  void __ceph_do_pending_vmtruncate(struct inode *inode)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        u64 to;
        int wrbuffer_refs, finish = 0;
  retry:
        spin_lock(&ci->i_ceph_lock);
        if (ci->i_truncate_pending == 0) {
-               dout("%s %p none pending\n", __func__, inode);
+               doutc(cl, "%p %llx.%llx none pending\n", inode,
+                     ceph_vinop(inode));
                spin_unlock(&ci->i_ceph_lock);
                mutex_unlock(&ci->i_truncate_mutex);
                return;
         */
        if (ci->i_wrbuffer_ref_head < ci->i_wrbuffer_ref) {
                spin_unlock(&ci->i_ceph_lock);
-               dout("%s %p flushing snaps first\n", __func__, inode);
+               doutc(cl, "%p %llx.%llx flushing snaps first\n", inode,
+                     ceph_vinop(inode));
                filemap_write_and_wait_range(&inode->i_data, 0,
                                             inode->i_sb->s_maxbytes);
                goto retry;
  
        to = ci->i_truncate_pagecache_size;
        wrbuffer_refs = ci->i_wrbuffer_ref;
-       dout("%s %p (%d) to %lld\n", __func__, inode,
-            ci->i_truncate_pending, to);
+       doutc(cl, "%p %llx.%llx (%d) to %lld\n", inode, ceph_vinop(inode),
+             ci->i_truncate_pending, to);
        spin_unlock(&ci->i_ceph_lock);
  
        ceph_fscache_resize(inode, to);
@@@ -2220,9 -2252,10 +2255,10 @@@ static void ceph_inode_work(struct work
        struct ceph_inode_info *ci = container_of(work, struct ceph_inode_info,
                                                 i_work);
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
  
        if (test_and_clear_bit(CEPH_I_WORK_WRITEBACK, &ci->i_work_mask)) {
-               dout("writeback %p\n", inode);
+               doutc(cl, "writeback %p %llx.%llx\n", inode, ceph_vinop(inode));
                filemap_fdatawrite(&inode->i_data);
        }
        if (test_and_clear_bit(CEPH_I_WORK_INVALIDATE_PAGES, &ci->i_work_mask))
@@@ -2294,6 -2327,7 +2330,7 @@@ static int fill_fscrypt_truncate(struc
                                 struct ceph_mds_request *req,
                                 struct iattr *attr)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        int boff = attr->ia_size % CEPH_FSCRYPT_BLOCK_SIZE;
        loff_t pos, orig_pos = round_down(attr->ia_size,
  
        issued = __ceph_caps_issued(ci, NULL);
  
-       dout("%s size %lld -> %lld got cap refs on %s, issued %s\n", __func__,
-            i_size, attr->ia_size, ceph_cap_string(got),
-            ceph_cap_string(issued));
+       doutc(cl, "size %lld -> %lld got cap refs on %s, issued %s\n",
+             i_size, attr->ia_size, ceph_cap_string(got),
+             ceph_cap_string(issued));
  
        /* Try to writeback the dirty pagecaches */
        if (issued & (CEPH_CAP_FILE_BUFFER)) {
         * If the Rados object doesn't exist, it will be set to 0.
         */
        if (!objver) {
-               dout("%s hit hole, ppos %lld < size %lld\n", __func__,
-                    pos, i_size);
+               doutc(cl, "hit hole, ppos %lld < size %lld\n", pos, i_size);
  
                header.data_len = cpu_to_le32(8 + 8 + 4);
                header.file_offset = 0;
                header.data_len = cpu_to_le32(8 + 8 + 4 + CEPH_FSCRYPT_BLOCK_SIZE);
                header.file_offset = cpu_to_le64(orig_pos);
  
-               dout("%s encrypt block boff/bsize %d/%lu\n", __func__,
-                    boff, CEPH_FSCRYPT_BLOCK_SIZE);
+               doutc(cl, "encrypt block boff/bsize %d/%lu\n", boff,
+                     CEPH_FSCRYPT_BLOCK_SIZE);
  
                /* truncate and zero out the extra contents for the last block */
                memset(iov.iov_base + boff, 0, PAGE_SIZE - boff);
        }
        req->r_pagelist = pagelist;
  out:
-       dout("%s %p size dropping cap refs on %s\n", __func__,
-            inode, ceph_cap_string(got));
+       doutc(cl, "%p %llx.%llx size dropping cap refs on %s\n", inode,
+             ceph_vinop(inode), ceph_cap_string(got));
        ceph_put_cap_refs(ci, got);
        if (iov.iov_base)
                kunmap_local(iov.iov_base);
        return ret;
  }
  
- int __ceph_setattr(struct inode *inode, struct iattr *attr,
-                  struct ceph_iattr *cia)
+ int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode,
+                  struct iattr *attr, struct ceph_iattr *cia)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
        unsigned int ia_valid = attr->ia_valid;
        struct ceph_mds_request *req;
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_cap_flush *prealloc_cf;
        loff_t isize = i_size_read(inode);
        int issued;
@@@ -2469,7 -2503,8 +2506,8 @@@ retry
                }
        }
  
-       dout("setattr %p issued %s\n", inode, ceph_cap_string(issued));
+       doutc(cl, "%p %llx.%llx issued %s\n", inode, ceph_vinop(inode),
+             ceph_cap_string(issued));
  #if IS_ENABLED(CONFIG_FS_ENCRYPTION)
        if (cia && cia->fscrypt_auth) {
                u32 len = ceph_fscrypt_auth_len(cia->fscrypt_auth);
                        goto out;
                }
  
-               dout("setattr %llx:%llx fscrypt_auth len %u to %u)\n",
-                       ceph_vinop(inode), ci->fscrypt_auth_len, len);
+               doutc(cl, "%p %llx.%llx fscrypt_auth len %u to %u)\n", inode,
+                     ceph_vinop(inode), ci->fscrypt_auth_len, len);
  
                /* It should never be re-set once set */
                WARN_ON_ONCE(ci->fscrypt_auth);
  #endif /* CONFIG_FS_ENCRYPTION */
  
        if (ia_valid & ATTR_UID) {
-               dout("setattr %p uid %d -> %d\n", inode,
-                    from_kuid(&init_user_ns, inode->i_uid),
-                    from_kuid(&init_user_ns, attr->ia_uid));
+               kuid_t fsuid = from_vfsuid(idmap, i_user_ns(inode), attr->ia_vfsuid);
+               doutc(cl, "%p %llx.%llx uid %d -> %d\n", inode,
+                     ceph_vinop(inode),
+                     from_kuid(&init_user_ns, inode->i_uid),
+                     from_kuid(&init_user_ns, attr->ia_uid));
                if (issued & CEPH_CAP_AUTH_EXCL) {
-                       inode->i_uid = attr->ia_uid;
+                       inode->i_uid = fsuid;
                        dirtied |= CEPH_CAP_AUTH_EXCL;
                } else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 ||
-                          !uid_eq(attr->ia_uid, inode->i_uid)) {
+                          !uid_eq(fsuid, inode->i_uid)) {
                        req->r_args.setattr.uid = cpu_to_le32(
-                               from_kuid(&init_user_ns, attr->ia_uid));
+                               from_kuid(&init_user_ns, fsuid));
                        mask |= CEPH_SETATTR_UID;
                        release |= CEPH_CAP_AUTH_SHARED;
                }
        }
        if (ia_valid & ATTR_GID) {
-               dout("setattr %p gid %d -> %d\n", inode,
-                    from_kgid(&init_user_ns, inode->i_gid),
-                    from_kgid(&init_user_ns, attr->ia_gid));
+               kgid_t fsgid = from_vfsgid(idmap, i_user_ns(inode), attr->ia_vfsgid);
+               doutc(cl, "%p %llx.%llx gid %d -> %d\n", inode,
+                     ceph_vinop(inode),
+                     from_kgid(&init_user_ns, inode->i_gid),
+                     from_kgid(&init_user_ns, attr->ia_gid));
                if (issued & CEPH_CAP_AUTH_EXCL) {
-                       inode->i_gid = attr->ia_gid;
+                       inode->i_gid = fsgid;
                        dirtied |= CEPH_CAP_AUTH_EXCL;
                } else if ((issued & CEPH_CAP_AUTH_SHARED) == 0 ||
-                          !gid_eq(attr->ia_gid, inode->i_gid)) {
+                          !gid_eq(fsgid, inode->i_gid)) {
                        req->r_args.setattr.gid = cpu_to_le32(
-                               from_kgid(&init_user_ns, attr->ia_gid));
+                               from_kgid(&init_user_ns, fsgid));
                        mask |= CEPH_SETATTR_GID;
                        release |= CEPH_CAP_AUTH_SHARED;
                }
        }
        if (ia_valid & ATTR_MODE) {
-               dout("setattr %p mode 0%o -> 0%o\n", inode, inode->i_mode,
-                    attr->ia_mode);
+               doutc(cl, "%p %llx.%llx mode 0%o -> 0%o\n", inode,
+                     ceph_vinop(inode), inode->i_mode, attr->ia_mode);
                if (issued & CEPH_CAP_AUTH_EXCL) {
                        inode->i_mode = attr->ia_mode;
                        dirtied |= CEPH_CAP_AUTH_EXCL;
        }
  
        if (ia_valid & ATTR_ATIME) {
 -              doutc(cl, "%p %llx.%llx atime %lld.%ld -> %lld.%ld\n",
 -                    inode, ceph_vinop(inode), inode->i_atime.tv_sec,
 -                    inode->i_atime.tv_nsec, attr->ia_atime.tv_sec,
 -                    attr->ia_atime.tv_nsec);
 +              struct timespec64 atime = inode_get_atime(inode);
 +
-               dout("setattr %p atime %lld.%ld -> %lld.%ld\n", inode,
-                    atime.tv_sec, atime.tv_nsec,
-                    attr->ia_atime.tv_sec, attr->ia_atime.tv_nsec);
++              doutc(cl, "%p %llx.%llx atime %lld.%09ld -> %lld.%09ld\n",
++                    inode, ceph_vinop(inode),
++                    atime.tv_sec, atime.tv_nsec,
++                    attr->ia_atime.tv_sec, attr->ia_atime.tv_nsec);
                if (issued & CEPH_CAP_FILE_EXCL) {
                        ci->i_time_warp_seq++;
 -                      inode->i_atime = attr->ia_atime;
 +                      inode_set_atime_to_ts(inode, attr->ia_atime);
                        dirtied |= CEPH_CAP_FILE_EXCL;
                } else if ((issued & CEPH_CAP_FILE_WR) &&
 -                         timespec64_compare(&inode->i_atime,
 -                                          &attr->ia_atime) < 0) {
 -                      inode->i_atime = attr->ia_atime;
 +                         timespec64_compare(&atime,
 +                                            &attr->ia_atime) < 0) {
 +                      inode_set_atime_to_ts(inode, attr->ia_atime);
                        dirtied |= CEPH_CAP_FILE_WR;
                } else if ((issued & CEPH_CAP_FILE_SHARED) == 0 ||
 -                         !timespec64_equal(&inode->i_atime, &attr->ia_atime)) {
 +                         !timespec64_equal(&atime, &attr->ia_atime)) {
                        ceph_encode_timespec64(&req->r_args.setattr.atime,
                                               &attr->ia_atime);
                        mask |= CEPH_SETATTR_ATIME;
                }
        }
        if (ia_valid & ATTR_SIZE) {
-               dout("setattr %p size %lld -> %lld\n", inode, isize, attr->ia_size);
+               doutc(cl, "%p %llx.%llx size %lld -> %lld\n", inode,
+                     ceph_vinop(inode), isize, attr->ia_size);
                /*
                 * Only when the new size is smaller and not aligned to
                 * CEPH_FSCRYPT_BLOCK_SIZE will the RMW is needed.
                }
        }
        if (ia_valid & ATTR_MTIME) {
 -              doutc(cl, "%p %llx.%llx mtime %lld.%ld -> %lld.%ld\n",
 -                    inode, ceph_vinop(inode), inode->i_mtime.tv_sec,
 -                    inode->i_mtime.tv_nsec, attr->ia_mtime.tv_sec,
 -                    attr->ia_mtime.tv_nsec);
 +              struct timespec64 mtime = inode_get_mtime(inode);
 +
-               dout("setattr %p mtime %lld.%ld -> %lld.%ld\n", inode,
-                    mtime.tv_sec, mtime.tv_nsec,
-                    attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec);
++              doutc(cl, "%p %llx.%llx mtime %lld.%09ld -> %lld.%09ld\n",
++                    inode, ceph_vinop(inode),
++                    mtime.tv_sec, mtime.tv_nsec,
++                    attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec);
                if (issued & CEPH_CAP_FILE_EXCL) {
                        ci->i_time_warp_seq++;
 -                      inode->i_mtime = attr->ia_mtime;
 +                      inode_set_mtime_to_ts(inode, attr->ia_mtime);
                        dirtied |= CEPH_CAP_FILE_EXCL;
                } else if ((issued & CEPH_CAP_FILE_WR) &&
 -                         timespec64_compare(&inode->i_mtime,
 -                                          &attr->ia_mtime) < 0) {
 -                      inode->i_mtime = attr->ia_mtime;
 +                         timespec64_compare(&mtime, &attr->ia_mtime) < 0) {
 +                      inode_set_mtime_to_ts(inode, attr->ia_mtime);
                        dirtied |= CEPH_CAP_FILE_WR;
                } else if ((issued & CEPH_CAP_FILE_SHARED) == 0 ||
 -                         !timespec64_equal(&inode->i_mtime, &attr->ia_mtime)) {
 +                         !timespec64_equal(&mtime, &attr->ia_mtime)) {
                        ceph_encode_timespec64(&req->r_args.setattr.mtime,
                                               &attr->ia_mtime);
                        mask |= CEPH_SETATTR_MTIME;
        if (ia_valid & ATTR_CTIME) {
                bool only = (ia_valid & (ATTR_SIZE|ATTR_MTIME|ATTR_ATIME|
                                         ATTR_MODE|ATTR_UID|ATTR_GID)) == 0;
-               dout("setattr %p ctime %lld.%ld -> %lld.%ld (%s)\n", inode,
-                    inode_get_ctime_sec(inode),
-                    inode_get_ctime_nsec(inode),
-                    attr->ia_ctime.tv_sec, attr->ia_ctime.tv_nsec,
-                    only ? "ctime only" : "ignored");
 -              doutc(cl, "%p %llx.%llx ctime %lld.%ld -> %lld.%ld (%s)\n",
 -                    inode, ceph_vinop(inode), inode_get_ctime(inode).tv_sec,
 -                    inode_get_ctime(inode).tv_nsec,
++              doutc(cl, "%p %llx.%llx ctime %lld.%09ld -> %lld.%09ld (%s)\n",
++                    inode, ceph_vinop(inode),
++                    inode_get_ctime_sec(inode),
++                    inode_get_ctime_nsec(inode),
+                     attr->ia_ctime.tv_sec, attr->ia_ctime.tv_nsec,
+                     only ? "ctime only" : "ignored");
 -
                if (only) {
                        /*
                         * if kernel wants to dirty ctime but nothing else,
                }
        }
        if (ia_valid & ATTR_FILE)
-               dout("setattr %p ATTR_FILE ... hrm!\n", inode);
+               doutc(cl, "%p %llx.%llx ATTR_FILE ... hrm!\n", inode,
+                     ceph_vinop(inode));
  
        if (dirtied) {
                inode_dirty_flags = __ceph_mark_dirty_caps(ci, dirtied,
                 */
                err = ceph_mdsc_do_request(mdsc, NULL, req);
                if (err == -EAGAIN && truncate_retry--) {
-                       dout("setattr %p result=%d (%s locally, %d remote), retry it!\n",
-                            inode, err, ceph_cap_string(dirtied), mask);
+                       doutc(cl, "%p %llx.%llx result=%d (%s locally, %d remote), retry it!\n",
+                             inode, ceph_vinop(inode), err,
+                             ceph_cap_string(dirtied), mask);
                        ceph_mdsc_put_request(req);
                        ceph_free_cap_flush(prealloc_cf);
                        goto retry;
                }
        }
  out:
-       dout("setattr %p result=%d (%s locally, %d remote)\n", inode, err,
-            ceph_cap_string(dirtied), mask);
+       doutc(cl, "%p %llx.%llx result=%d (%s locally, %d remote)\n", inode,
+             ceph_vinop(inode), err, ceph_cap_string(dirtied), mask);
  
        ceph_mdsc_put_request(req);
        ceph_free_cap_flush(prealloc_cf);
@@@ -2746,7 -2790,7 +2796,7 @@@ int ceph_setattr(struct mnt_idmap *idma
                 struct iattr *attr)
  {
        struct inode *inode = d_inode(dentry);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        int err;
  
        if (ceph_snap(inode) != CEPH_NOSNAP)
        if (err)
                return err;
  
-       err = setattr_prepare(&nop_mnt_idmap, dentry, attr);
+       err = setattr_prepare(idmap, dentry, attr);
        if (err != 0)
                return err;
  
            ceph_quota_is_max_bytes_exceeded(inode, attr->ia_size))
                return -EDQUOT;
  
-       err = __ceph_setattr(inode, attr, NULL);
+       err = __ceph_setattr(idmap, inode, attr, NULL);
  
        if (err >= 0 && (attr->ia_valid & ATTR_MODE))
-               err = posix_acl_chmod(&nop_mnt_idmap, dentry, attr->ia_mode);
+               err = posix_acl_chmod(idmap, dentry, attr->ia_mode);
  
        return err;
  }
@@@ -2816,19 -2860,21 +2866,21 @@@ int ceph_try_to_choose_auth_mds(struct 
  int __ceph_do_getattr(struct inode *inode, struct page *locked_page,
                      int mask, bool force)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(inode->i_sb);
+       struct ceph_client *cl = fsc->client;
        struct ceph_mds_client *mdsc = fsc->mdsc;
        struct ceph_mds_request *req;
        int mode;
        int err;
  
        if (ceph_snap(inode) == CEPH_SNAPDIR) {
-               dout("do_getattr inode %p SNAPDIR\n", inode);
+               doutc(cl, "inode %p %llx.%llx SNAPDIR\n", inode,
+                     ceph_vinop(inode));
                return 0;
        }
  
-       dout("do_getattr inode %p mask %s mode 0%o\n",
-            inode, ceph_cap_string(mask), inode->i_mode);
+       doutc(cl, "inode %p %llx.%llx mask %s mode 0%o\n", inode,
+             ceph_vinop(inode), ceph_cap_string(mask), inode->i_mode);
        if (!force && ceph_caps_issued_mask_metric(ceph_inode(inode), mask, 1))
                        return 0;
  
                }
        }
        ceph_mdsc_put_request(req);
-       dout("do_getattr result=%d\n", err);
+       doutc(cl, "result=%d\n", err);
        return err;
  }
  
  int ceph_do_getvxattr(struct inode *inode, const char *name, void *value,
                      size_t size)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(inode->i_sb);
+       struct ceph_client *cl = fsc->client;
        struct ceph_mds_client *mdsc = fsc->mdsc;
        struct ceph_mds_request *req;
        int mode = USE_AUTH_MDS;
        xattr_value = req->r_reply_info.xattr_info.xattr_value;
        xattr_value_len = req->r_reply_info.xattr_info.xattr_value_len;
  
-       dout("do_getvxattr xattr_value_len:%zu, size:%zu\n", xattr_value_len, size);
+       doutc(cl, "xattr_value_len:%zu, size:%zu\n", xattr_value_len, size);
  
        err = (int)xattr_value_len;
        if (size == 0)
  put:
        ceph_mdsc_put_request(req);
  out:
-       dout("do_getvxattr result=%d\n", err);
+       doutc(cl, "result=%d\n", err);
        return err;
  }
  
@@@ -2927,7 -2974,7 +2980,7 @@@ int ceph_permission(struct mnt_idmap *i
        err = ceph_do_getattr(inode, CEPH_CAP_AUTH_SHARED, false);
  
        if (!err)
-               err = generic_permission(&nop_mnt_idmap, inode, mask);
+               err = generic_permission(idmap, inode, mask);
        return err;
  }
  
@@@ -2984,7 -3031,7 +3037,7 @@@ int ceph_getattr(struct mnt_idmap *idma
                        return err;
        }
  
-       generic_fillattr(&nop_mnt_idmap, request_mask, inode, stat);
+       generic_fillattr(idmap, request_mask, inode, stat);
        stat->ino = ceph_present_inode(inode);
  
        /*
                stat->dev = ci->i_snapid_map ? ci->i_snapid_map->dev : 0;
  
        if (S_ISDIR(inode->i_mode)) {
-               if (ceph_test_mount_opt(ceph_sb_to_client(sb), RBYTES)) {
+               if (ceph_test_mount_opt(ceph_sb_to_fs_client(sb), RBYTES)) {
                        stat->size = ci->i_rbytes;
                } else if (ceph_snap(inode) == CEPH_SNAPDIR) {
                        struct ceph_inode_info *pci;
diff --combined fs/ceph/mds_client.c
index de798444bb974168561a3318dfb54519bc762ae1,7f4147bb98eff3981179b029fe49ffc045c4ef58..d95eb525519a644148af693ba68972c84b2ba941
@@@ -12,6 -12,7 +12,7 @@@
  #include <linux/bits.h>
  #include <linux/ktime.h>
  #include <linux/bitmap.h>
+ #include <linux/mnt_idmapping.h>
  
  #include "super.h"
  #include "mds_client.h"
@@@ -411,6 -412,7 +412,7 @@@ static int parse_reply_info_readdir(voi
                                    u64 features)
  {
        struct ceph_mds_reply_info_parsed *info = &req->r_reply_info;
+       struct ceph_client *cl = req->r_mdsc->fsc->client;
        u32 num, i = 0;
        int err;
  
        BUG_ON(!info->dir_entries);
        if ((unsigned long)(info->dir_entries + num) >
            (unsigned long)info->dir_entries + info->dir_buf_size) {
-               pr_err("dir contents are larger than expected\n");
+               pr_err_client(cl, "dir contents are larger than expected\n");
                WARN_ON(1);
                goto bad;
        }
                ceph_decode_need(p, end, _name_len, bad);
                _name = *p;
                *p += _name_len;
-               dout("parsed dir dname '%.*s'\n", _name_len, _name);
+               doutc(cl, "parsed dir dname '%.*s'\n", _name_len, _name);
  
                if (info->hash_order)
                        rde->raw_hash = ceph_str_hash(ci->i_dir_layout.dl_dir_hash,
                rde->is_nokey = false;
                err = ceph_fname_to_usr(&fname, &tname, &oname, &rde->is_nokey);
                if (err) {
-                       pr_err("%s unable to decode %.*s, got %d\n", __func__,
-                              _name_len, _name, err);
+                       pr_err_client(cl, "unable to decode %.*s, got %d\n",
+                                     _name_len, _name, err);
                        goto out_bad;
                }
                rde->name = oname.name;
@@@ -539,7 -541,7 +541,7 @@@ done
  bad:
        err = -EIO;
  out_bad:
-       pr_err("problem parsing dir contents %d\n", err);
+       pr_err_client(cl, "problem parsing dir contents %d\n", err);
        return err;
  }
  
@@@ -570,10 -572,11 +572,11 @@@ bad
  static int ceph_parse_deleg_inos(void **p, void *end,
                                 struct ceph_mds_session *s)
  {
+       struct ceph_client *cl = s->s_mdsc->fsc->client;
        u32 sets;
  
        ceph_decode_32_safe(p, end, sets, bad);
-       dout("got %u sets of delegated inodes\n", sets);
+       doutc(cl, "got %u sets of delegated inodes\n", sets);
        while (sets--) {
                u64 start, len;
  
  
                /* Don't accept a delegation of system inodes */
                if (start < CEPH_INO_SYSTEM_BASE) {
-                       pr_warn_ratelimited("ceph: ignoring reserved inode range delegation (start=0x%llx len=0x%llx)\n",
-                                       start, len);
+                       pr_warn_ratelimited_client(cl,
+                               "ignoring reserved inode range delegation (start=0x%llx len=0x%llx)\n",
+                               start, len);
                        continue;
                }
                while (len--) {
                                            DELEGATED_INO_AVAILABLE,
                                            GFP_KERNEL);
                        if (!err) {
-                               dout("added delegated inode 0x%llx\n",
-                                    start - 1);
+                               doutc(cl, "added delegated inode 0x%llx\n", start - 1);
                        } else if (err == -EBUSY) {
-                               pr_warn("MDS delegated inode 0x%llx more than once.\n",
+                               pr_warn_client(cl,
+                                       "MDS delegated inode 0x%llx more than once.\n",
                                        start - 1);
                        } else {
                                return err;
@@@ -744,6 -748,7 +748,7 @@@ static int parse_reply_info(struct ceph
                            struct ceph_mds_request *req, u64 features)
  {
        struct ceph_mds_reply_info_parsed *info = &req->r_reply_info;
+       struct ceph_client *cl = s->s_mdsc->fsc->client;
        void *p, *end;
        u32 len;
        int err;
  bad:
        err = -EIO;
  out_bad:
-       pr_err("mds parse_reply err %d\n", err);
+       pr_err_client(cl, "mds parse_reply err %d\n", err);
        ceph_msg_dump(msg);
        return err;
  }
@@@ -830,7 -835,8 +835,8 @@@ static void destroy_reply_info(struct c
   */
  int ceph_wait_on_conflict_unlink(struct dentry *dentry)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(dentry->d_sb);
+       struct ceph_client *cl = fsc->client;
        struct dentry *pdentry = dentry->d_parent;
        struct dentry *udentry, *found = NULL;
        struct ceph_dentry_info *di;
                        goto next;
  
                if (!test_bit(CEPH_DENTRY_ASYNC_UNLINK_BIT, &di->flags))
-                       pr_warn("%s dentry %p:%pd async unlink bit is not set\n",
-                               __func__, dentry, dentry);
+                       pr_warn_client(cl, "dentry %p:%pd async unlink bit is not set\n",
+                                      dentry, dentry);
  
                if (!d_same_name(udentry, pdentry, &dname))
                        goto next;
@@@ -872,8 -878,8 +878,8 @@@ next
        if (likely(!found))
                return 0;
  
-       dout("%s dentry %p:%pd conflict with old %p:%pd\n", __func__,
-            dentry, dentry, found, found);
+       doutc(cl, "dentry %p:%pd conflict with old %p:%pd\n", dentry, dentry,
+             found, found);
  
        err = wait_on_bit(&di->flags, CEPH_DENTRY_ASYNC_UNLINK_BIT,
                          TASK_KILLABLE);
@@@ -957,6 -963,7 +963,7 @@@ static int __verify_registered_session(
  static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
                                                 int mds)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_session *s;
  
        if (READ_ONCE(mdsc->fsc->mount_state) == CEPH_MOUNT_FENCE_IO)
                int newmax = 1 << get_count_order(mds + 1);
                struct ceph_mds_session **sa;
  
-               dout("%s: realloc to %d\n", __func__, newmax);
+               doutc(cl, "realloc to %d\n", newmax);
                sa = kcalloc(newmax, sizeof(void *), GFP_NOFS);
                if (!sa)
                        goto fail_realloc;
                mdsc->max_sessions = newmax;
        }
  
-       dout("%s: mds%d\n", __func__, mds);
+       doutc(cl, "mds%d\n", mds);
        s->s_mdsc = mdsc;
        s->s_mds = mds;
        s->s_state = CEPH_MDS_SESSION_NEW;
@@@ -1029,7 -1036,7 +1036,7 @@@ fail_realloc
  static void __unregister_session(struct ceph_mds_client *mdsc,
                               struct ceph_mds_session *s)
  {
-       dout("__unregister_session mds%d %p\n", s->s_mds, s);
+       doutc(mdsc->fsc->client, "mds%d %p\n", s->s_mds, s);
        BUG_ON(mdsc->sessions[s->s_mds] != s);
        mdsc->sessions[s->s_mds] = NULL;
        ceph_con_close(&s->s_con);
@@@ -1116,6 -1123,8 +1123,8 @@@ void ceph_mdsc_release_request(struct k
        kfree(req->r_path1);
        kfree(req->r_path2);
        put_cred(req->r_cred);
+       if (req->r_mnt_idmap)
+               mnt_idmap_put(req->r_mnt_idmap);
        if (req->r_pagelist)
                ceph_pagelist_release(req->r_pagelist);
        kfree(req->r_fscrypt_auth);
@@@ -1155,6 -1164,7 +1164,7 @@@ static void __register_request(struct c
                               struct ceph_mds_request *req,
                               struct inode *dir)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int ret = 0;
  
        req->r_tid = ++mdsc->last_tid;
                ret = ceph_reserve_caps(mdsc, &req->r_caps_reservation,
                                        req->r_num_caps);
                if (ret < 0) {
-                       pr_err("__register_request %p "
-                              "failed to reserve caps: %d\n", req, ret);
+                       pr_err_client(cl, "%p failed to reserve caps: %d\n",
+                                     req, ret);
                        /* set req->r_err to fail early from __do_request */
                        req->r_err = ret;
                        return;
                }
        }
-       dout("__register_request %p tid %lld\n", req, req->r_tid);
+       doutc(cl, "%p tid %lld\n", req, req->r_tid);
        ceph_mdsc_get_request(req);
        insert_request(&mdsc->request_tree, req);
  
        req->r_cred = get_current_cred();
+       if (!req->r_mnt_idmap)
+               req->r_mnt_idmap = &nop_mnt_idmap;
  
        if (mdsc->oldest_tid == 0 && req->r_op != CEPH_MDS_OP_SETFILELOCK)
                mdsc->oldest_tid = req->r_tid;
  static void __unregister_request(struct ceph_mds_client *mdsc,
                                 struct ceph_mds_request *req)
  {
-       dout("__unregister_request %p tid %lld\n", req, req->r_tid);
+       doutc(mdsc->fsc->client, "%p tid %lld\n", req, req->r_tid);
  
        /* Never leave an unregistered request on an unsafe list! */
        list_del_init(&req->r_unsafe_item);
@@@ -1278,6 -1290,7 +1290,7 @@@ static int __choose_mds(struct ceph_mds
        int mds = -1;
        u32 hash = req->r_direct_hash;
        bool is_hash = test_bit(CEPH_MDS_R_DIRECT_IS_HASH, &req->r_req_flags);
+       struct ceph_client *cl = mdsc->fsc->client;
  
        if (random)
                *random = false;
        if (req->r_resend_mds >= 0 &&
            (__have_session(mdsc, req->r_resend_mds) ||
             ceph_mdsmap_get_state(mdsc->mdsmap, req->r_resend_mds) > 0)) {
-               dout("%s using resend_mds mds%d\n", __func__,
-                    req->r_resend_mds);
+               doutc(cl, "using resend_mds mds%d\n", req->r_resend_mds);
                return req->r_resend_mds;
        }
  
                        rcu_read_lock();
                        inode = get_nonsnap_parent(req->r_dentry);
                        rcu_read_unlock();
-                       dout("%s using snapdir's parent %p\n", __func__, inode);
+                       doutc(cl, "using snapdir's parent %p %llx.%llx\n",
+                             inode, ceph_vinop(inode));
                }
        } else if (req->r_dentry) {
                /* ignore race with rename; old or new d_parent is okay */
                        /* direct snapped/virtual snapdir requests
                         * based on parent dir inode */
                        inode = get_nonsnap_parent(parent);
-                       dout("%s using nonsnap parent %p\n", __func__, inode);
+                       doutc(cl, "using nonsnap parent %p %llx.%llx\n",
+                             inode, ceph_vinop(inode));
                } else {
                        /* dentry target */
                        inode = d_inode(req->r_dentry);
                rcu_read_unlock();
        }
  
-       dout("%s %p is_hash=%d (0x%x) mode %d\n", __func__, inode, (int)is_hash,
-            hash, mode);
        if (!inode)
                goto random;
+       doutc(cl, "%p %llx.%llx is_hash=%d (0x%x) mode %d\n", inode,
+             ceph_vinop(inode), (int)is_hash, hash, mode);
        ci = ceph_inode(inode);
  
        if (is_hash && S_ISDIR(inode->i_mode)) {
                                get_random_bytes(&r, 1);
                                r %= frag.ndist;
                                mds = frag.dist[r];
-                               dout("%s %p %llx.%llx frag %u mds%d (%d/%d)\n",
-                                    __func__, inode, ceph_vinop(inode),
-                                    frag.frag, mds, (int)r, frag.ndist);
+                               doutc(cl, "%p %llx.%llx frag %u mds%d (%d/%d)\n",
+                                     inode, ceph_vinop(inode), frag.frag,
+                                     mds, (int)r, frag.ndist);
                                if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >=
                                    CEPH_MDS_STATE_ACTIVE &&
                                    !ceph_mdsmap_is_laggy(mdsc->mdsmap, mds))
                        if (frag.mds >= 0) {
                                /* choose auth mds */
                                mds = frag.mds;
-                               dout("%s %p %llx.%llx frag %u mds%d (auth)\n",
-                                    __func__, inode, ceph_vinop(inode),
-                                    frag.frag, mds);
+                               doutc(cl, "%p %llx.%llx frag %u mds%d (auth)\n",
+                                     inode, ceph_vinop(inode), frag.frag, mds);
                                if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >=
                                    CEPH_MDS_STATE_ACTIVE) {
                                        if (!ceph_mdsmap_is_laggy(mdsc->mdsmap,
                goto random;
        }
        mds = cap->session->s_mds;
-       dout("%s %p %llx.%llx mds%d (%scap %p)\n", __func__,
-            inode, ceph_vinop(inode), mds,
-            cap == ci->i_auth_cap ? "auth " : "", cap);
+       doutc(cl, "%p %llx.%llx mds%d (%scap %p)\n", inode,
+             ceph_vinop(inode), mds,
+             cap == ci->i_auth_cap ? "auth " : "", cap);
        spin_unlock(&ci->i_ceph_lock);
  out:
        iput(inode);
@@@ -1416,7 -1430,7 +1430,7 @@@ random
                *random = true;
  
        mds = ceph_mdsmap_get_random_mds(mdsc->mdsmap);
-       dout("%s chose random mds%d\n", __func__, mds);
+       doutc(cl, "chose random mds%d\n", mds);
        return mds;
  }
  
@@@ -1529,6 -1543,7 +1543,7 @@@ static struct ceph_msg *create_session_
        int metadata_key_count = 0;
        struct ceph_options *opt = mdsc->fsc->client->options;
        struct ceph_mount_options *fsopt = mdsc->fsc->mount_options;
+       struct ceph_client *cl = mdsc->fsc->client;
        size_t size, count;
        void *p, *end;
        int ret;
        msg = ceph_msg_new(CEPH_MSG_CLIENT_SESSION, sizeof(*h) + extra_bytes,
                           GFP_NOFS, false);
        if (!msg) {
-               pr_err("ENOMEM creating session open msg\n");
+               pr_err_client(cl, "ENOMEM creating session open msg\n");
                return ERR_PTR(-ENOMEM);
        }
        p = msg->front.iov_base;
  
        ret = encode_supported_features(&p, end);
        if (ret) {
-               pr_err("encode_supported_features failed!\n");
+               pr_err_client(cl, "encode_supported_features failed!\n");
                ceph_msg_put(msg);
                return ERR_PTR(ret);
        }
  
        ret = encode_metric_spec(&p, end);
        if (ret) {
-               pr_err("encode_metric_spec failed!\n");
+               pr_err_client(cl, "encode_metric_spec failed!\n");
                ceph_msg_put(msg);
                return ERR_PTR(ret);
        }
@@@ -1642,8 -1657,8 +1657,8 @@@ static int __open_session(struct ceph_m
  
        /* wait for mds to go active? */
        mstate = ceph_mdsmap_get_state(mdsc->mdsmap, mds);
-       dout("open_session to mds%d (%s)\n", mds,
-            ceph_mds_state_name(mstate));
+       doutc(mdsc->fsc->client, "open_session to mds%d (%s)\n", mds,
+             ceph_mds_state_name(mstate));
        session->s_state = CEPH_MDS_SESSION_OPENING;
        session->s_renew_requested = jiffies;
  
@@@ -1686,8 -1701,9 +1701,9 @@@ struct ceph_mds_session 
  ceph_mdsc_open_export_target_session(struct ceph_mds_client *mdsc, int target)
  {
        struct ceph_mds_session *session;
+       struct ceph_client *cl = mdsc->fsc->client;
  
-       dout("open_export_target_session to mds%d\n", target);
+       doutc(cl, "to mds%d\n", target);
  
        mutex_lock(&mdsc->mutex);
        session = __open_export_target_session(mdsc, target);
@@@ -1702,13 -1718,14 +1718,14 @@@ static void __open_export_target_sessio
        struct ceph_mds_info *mi;
        struct ceph_mds_session *ts;
        int i, mds = session->s_mds;
+       struct ceph_client *cl = mdsc->fsc->client;
  
        if (mds >= mdsc->mdsmap->possible_max_rank)
                return;
  
        mi = &mdsc->mdsmap->m_info[mds];
-       dout("open_export_target_sessions for mds%d (%d targets)\n",
-            session->s_mds, mi->num_export_targets);
+       doutc(cl, "for mds%d (%d targets)\n", session->s_mds,
+             mi->num_export_targets);
  
        for (i = 0; i < mi->num_export_targets; i++) {
                ts = __open_export_target_session(mdsc, mi->export_targets[i]);
@@@ -1731,11 -1748,13 +1748,13 @@@ void ceph_mdsc_open_export_target_sessi
  static void detach_cap_releases(struct ceph_mds_session *session,
                                struct list_head *target)
  {
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        lockdep_assert_held(&session->s_cap_lock);
  
        list_splice_init(&session->s_cap_releases, target);
        session->s_num_cap_releases = 0;
-       dout("dispose_cap_releases mds%d\n", session->s_mds);
+       doutc(cl, "mds%d\n", session->s_mds);
  }
  
  static void dispose_cap_releases(struct ceph_mds_client *mdsc,
  static void cleanup_session_requests(struct ceph_mds_client *mdsc,
                                     struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request *req;
        struct rb_node *p;
  
-       dout("cleanup_session_requests mds%d\n", session->s_mds);
+       doutc(cl, "mds%d\n", session->s_mds);
        mutex_lock(&mdsc->mutex);
        while (!list_empty(&session->s_unsafe)) {
                req = list_first_entry(&session->s_unsafe,
                                       struct ceph_mds_request, r_unsafe_item);
-               pr_warn_ratelimited(" dropping unsafe request %llu\n",
-                                   req->r_tid);
+               pr_warn_ratelimited_client(cl, " dropping unsafe request %llu\n",
+                                          req->r_tid);
                if (req->r_target_inode)
                        mapping_set_error(req->r_target_inode->i_mapping, -EIO);
                if (req->r_unsafe_dir)
@@@ -1791,13 -1811,14 +1811,14 @@@ int ceph_iterate_session_caps(struct ce
                              int (*cb)(struct inode *, int mds, void *),
                              void *arg)
  {
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        struct list_head *p;
        struct ceph_cap *cap;
        struct inode *inode, *last_inode = NULL;
        struct ceph_cap *old_cap = NULL;
        int ret;
  
-       dout("iterate_session_caps %p mds%d\n", session, session->s_mds);
+       doutc(cl, "%p mds%d\n", session, session->s_mds);
        spin_lock(&session->s_cap_lock);
        p = session->s_caps.next;
        while (p != &session->s_caps) {
                spin_lock(&session->s_cap_lock);
                p = p->next;
                if (!cap->ci) {
-                       dout("iterate_session_caps  finishing cap %p removal\n",
-                            cap);
+                       doutc(cl, "finishing cap %p removal\n", cap);
                        BUG_ON(cap->session != session);
                        cap->session = NULL;
                        list_del_init(&cap->session_caps);
@@@ -1858,6 -1878,7 +1878,7 @@@ out
  static int remove_session_caps_cb(struct inode *inode, int mds, void *arg)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        bool invalidate = false;
        struct ceph_cap *cap;
        int iputs = 0;
        spin_lock(&ci->i_ceph_lock);
        cap = __get_cap_for_mds(ci, mds);
        if (cap) {
-               dout(" removing cap %p, ci is %p, inode is %p\n",
-                    cap, ci, &ci->netfs.inode);
+               doutc(cl, " removing cap %p, ci is %p, inode is %p\n",
+                     cap, ci, &ci->netfs.inode);
  
                iputs = ceph_purge_inode_cap(inode, cap, &invalidate);
        }
@@@ -1890,7 -1911,7 +1911,7 @@@ static void remove_session_caps(struct 
        struct super_block *sb = fsc->sb;
        LIST_HEAD(dispose);
  
-       dout("remove_session_caps on %p\n", session);
+       doutc(fsc->client, "on %p\n", session);
        ceph_iterate_session_caps(session, remove_session_caps_cb, fsc);
  
        wake_up_all(&fsc->mdsc->cap_flushing_wq);
@@@ -1971,7 -1992,9 +1992,9 @@@ static int wake_up_session_cb(struct in
  
  static void wake_up_session_caps(struct ceph_mds_session *session, int ev)
  {
-       dout("wake_up_session_caps %p mds%d\n", session, session->s_mds);
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
+       doutc(cl, "session %p mds%d\n", session, session->s_mds);
        ceph_iterate_session_caps(session, wake_up_session_cb,
                                  (void *)(unsigned long)ev);
  }
  static int send_renew_caps(struct ceph_mds_client *mdsc,
                           struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_msg *msg;
        int state;
  
        if (time_after_eq(jiffies, session->s_cap_ttl) &&
            time_after_eq(session->s_cap_ttl, session->s_renew_requested))
-               pr_info("mds%d caps stale\n", session->s_mds);
+               pr_info_client(cl, "mds%d caps stale\n", session->s_mds);
        session->s_renew_requested = jiffies;
  
        /* do not try to renew caps until a recovering mds has reconnected
         * with its clients. */
        state = ceph_mdsmap_get_state(mdsc->mdsmap, session->s_mds);
        if (state < CEPH_MDS_STATE_RECONNECT) {
-               dout("send_renew_caps ignoring mds%d (%s)\n",
-                    session->s_mds, ceph_mds_state_name(state));
+               doutc(cl, "ignoring mds%d (%s)\n", session->s_mds,
+                     ceph_mds_state_name(state));
                return 0;
        }
  
-       dout("send_renew_caps to mds%d (%s)\n", session->s_mds,
-               ceph_mds_state_name(state));
+       doutc(cl, "to mds%d (%s)\n", session->s_mds,
+             ceph_mds_state_name(state));
        msg = ceph_create_session_msg(CEPH_SESSION_REQUEST_RENEWCAPS,
                                      ++session->s_renew_seq);
        if (!msg)
  static int send_flushmsg_ack(struct ceph_mds_client *mdsc,
                             struct ceph_mds_session *session, u64 seq)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_msg *msg;
  
-       dout("send_flushmsg_ack to mds%d (%s)s seq %lld\n",
-            session->s_mds, ceph_session_state_name(session->s_state), seq);
+       doutc(cl, "to mds%d (%s)s seq %lld\n", session->s_mds,
+             ceph_session_state_name(session->s_state), seq);
        msg = ceph_create_session_msg(CEPH_SESSION_FLUSHMSG_ACK, seq);
        if (!msg)
                return -ENOMEM;
  static void renewed_caps(struct ceph_mds_client *mdsc,
                         struct ceph_mds_session *session, int is_renew)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int was_stale;
        int wake = 0;
  
  
        if (was_stale) {
                if (time_before(jiffies, session->s_cap_ttl)) {
-                       pr_info("mds%d caps renewed\n", session->s_mds);
+                       pr_info_client(cl, "mds%d caps renewed\n",
+                                      session->s_mds);
                        wake = 1;
                } else {
-                       pr_info("mds%d caps still stale\n", session->s_mds);
+                       pr_info_client(cl, "mds%d caps still stale\n",
+                                      session->s_mds);
                }
        }
-       dout("renewed_caps mds%d ttl now %lu, was %s, now %s\n",
-            session->s_mds, session->s_cap_ttl, was_stale ? "stale" : "fresh",
-            time_before(jiffies, session->s_cap_ttl) ? "stale" : "fresh");
+       doutc(cl, "mds%d ttl now %lu, was %s, now %s\n", session->s_mds,
+             session->s_cap_ttl, was_stale ? "stale" : "fresh",
+             time_before(jiffies, session->s_cap_ttl) ? "stale" : "fresh");
        spin_unlock(&session->s_cap_lock);
  
        if (wake)
   */
  static int request_close_session(struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        struct ceph_msg *msg;
  
-       dout("request_close_session mds%d state %s seq %lld\n",
-            session->s_mds, ceph_session_state_name(session->s_state),
-            session->s_seq);
+       doutc(cl, "mds%d state %s seq %lld\n", session->s_mds,
+             ceph_session_state_name(session->s_state), session->s_seq);
        msg = ceph_create_session_msg(CEPH_SESSION_REQUEST_CLOSE,
                                      session->s_seq);
        if (!msg)
@@@ -2126,6 -2154,8 +2154,8 @@@ out
   */
  static int trim_caps_cb(struct inode *inode, int mds, void *arg)
  {
+       struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = mdsc->fsc->client;
        int *remaining = arg;
        struct ceph_inode_info *ci = ceph_inode(inode);
        int used, wanted, oissued, mine;
        wanted = __ceph_caps_file_wanted(ci);
        oissued = __ceph_caps_issued_other(ci, cap);
  
-       dout("trim_caps_cb %p cap %p mine %s oissued %s used %s wanted %s\n",
-            inode, cap, ceph_cap_string(mine), ceph_cap_string(oissued),
-            ceph_cap_string(used), ceph_cap_string(wanted));
+       doutc(cl, "%p %llx.%llx cap %p mine %s oissued %s used %s wanted %s\n",
+             inode, ceph_vinop(inode), cap, ceph_cap_string(mine),
+             ceph_cap_string(oissued), ceph_cap_string(used),
+             ceph_cap_string(wanted));
        if (cap == ci->i_auth_cap) {
                if (ci->i_dirty_caps || ci->i_flushing_caps ||
                    !list_empty(&ci->i_cap_snaps))
  
        if (oissued) {
                /* we aren't the only cap.. just remove us */
-               ceph_remove_cap(cap, true);
+               ceph_remove_cap(mdsc, cap, true);
                (*remaining)--;
        } else {
                struct dentry *dentry;
                        count = atomic_read(&inode->i_count);
                        if (count == 1)
                                (*remaining)--;
-                       dout("trim_caps_cb %p cap %p pruned, count now %d\n",
-                            inode, cap, count);
+                       doutc(cl, "%p %llx.%llx cap %p pruned, count now %d\n",
+                             inode, ceph_vinop(inode), cap, count);
                } else {
                        dput(dentry);
                }
@@@ -2207,17 -2238,18 +2238,18 @@@ int ceph_trim_caps(struct ceph_mds_clie
                   struct ceph_mds_session *session,
                   int max_caps)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int trim_caps = session->s_nr_caps - max_caps;
  
-       dout("trim_caps mds%d start: %d / %d, trim %d\n",
-            session->s_mds, session->s_nr_caps, max_caps, trim_caps);
+       doutc(cl, "mds%d start: %d / %d, trim %d\n", session->s_mds,
+             session->s_nr_caps, max_caps, trim_caps);
        if (trim_caps > 0) {
                int remaining = trim_caps;
  
                ceph_iterate_session_caps(session, trim_caps_cb, &remaining);
-               dout("trim_caps mds%d done: %d / %d, trimmed %d\n",
-                    session->s_mds, session->s_nr_caps, max_caps,
-                       trim_caps - remaining);
+               doutc(cl, "mds%d done: %d / %d, trimmed %d\n",
+                     session->s_mds, session->s_nr_caps, max_caps,
+                     trim_caps - remaining);
        }
  
        ceph_flush_cap_releases(mdsc, session);
  static int check_caps_flush(struct ceph_mds_client *mdsc,
                            u64 want_flush_tid)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int ret = 1;
  
        spin_lock(&mdsc->cap_dirty_lock);
                        list_first_entry(&mdsc->cap_flush_list,
                                         struct ceph_cap_flush, g_list);
                if (cf->tid <= want_flush_tid) {
-                       dout("check_caps_flush still flushing tid "
-                            "%llu <= %llu\n", cf->tid, want_flush_tid);
+                       doutc(cl, "still flushing tid %llu <= %llu\n",
+                             cf->tid, want_flush_tid);
                        ret = 0;
                }
        }
  static void wait_caps_flush(struct ceph_mds_client *mdsc,
                            u64 want_flush_tid)
  {
-       dout("check_caps_flush want %llu\n", want_flush_tid);
+       struct ceph_client *cl = mdsc->fsc->client;
+       doutc(cl, "want %llu\n", want_flush_tid);
  
        wait_event(mdsc->cap_flushing_wq,
                   check_caps_flush(mdsc, want_flush_tid));
  
-       dout("check_caps_flush ok, flushed thru %llu\n", want_flush_tid);
+       doutc(cl, "ok, flushed thru %llu\n", want_flush_tid);
  }
  
  /*
  static void ceph_send_cap_releases(struct ceph_mds_client *mdsc,
                                   struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_msg *msg = NULL;
        struct ceph_mds_cap_release *head;
        struct ceph_mds_cap_item *item;
@@@ -2324,7 -2360,7 +2360,7 @@@ again
                        msg->front.iov_len += sizeof(*cap_barrier);
  
                        msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
-                       dout("send_cap_releases mds%d %p\n", session->s_mds, msg);
+                       doutc(cl, "mds%d %p\n", session->s_mds, msg);
                        ceph_con_send(&session->s_con, msg);
                        msg = NULL;
                }
                msg->front.iov_len += sizeof(*cap_barrier);
  
                msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
-               dout("send_cap_releases mds%d %p\n", session->s_mds, msg);
+               doutc(cl, "mds%d %p\n", session->s_mds, msg);
                ceph_con_send(&session->s_con, msg);
        }
        return;
  out_err:
-       pr_err("send_cap_releases mds%d, failed to allocate message\n",
-               session->s_mds);
+       pr_err_client(cl, "mds%d, failed to allocate message\n",
+                     session->s_mds);
        spin_lock(&session->s_cap_lock);
        list_splice(&tmp_list, &session->s_cap_releases);
        session->s_num_cap_releases += num_cap_releases;
@@@ -2373,16 -2409,17 +2409,17 @@@ static void ceph_cap_release_work(struc
  void ceph_flush_cap_releases(struct ceph_mds_client *mdsc,
                             struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        if (mdsc->stopping)
                return;
  
        ceph_get_mds_session(session);
        if (queue_work(mdsc->fsc->cap_wq,
                       &session->s_cap_release_work)) {
-               dout("cap release work queued\n");
+               doutc(cl, "cap release work queued\n");
        } else {
                ceph_put_mds_session(session);
-               dout("failed to queue cap release work\n");
+               doutc(cl, "failed to queue cap release work\n");
        }
  }
  
@@@ -2410,13 -2447,14 +2447,14 @@@ static void ceph_cap_reclaim_work(struc
  
  void ceph_queue_cap_reclaim_work(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        if (mdsc->stopping)
                return;
  
          if (queue_work(mdsc->fsc->cap_wq, &mdsc->cap_reclaim_work)) {
-                 dout("caps reclaim work queued\n");
+                 doutc(cl, "caps reclaim work queued\n");
          } else {
-                 dout("failed to queue caps release work\n");
+                 doutc(cl, "failed to queue caps release work\n");
          }
  }
  
@@@ -2588,6 -2626,7 +2626,7 @@@ static u8 *get_fscrypt_altname(const st
  
  /**
   * ceph_mdsc_build_path - build a path string to a given dentry
+  * @mdsc: mds client
   * @dentry: dentry to which path should be built
   * @plen: returned length of string
   * @pbase: returned base inode number
   * Encode hidden .snap dirs as a double /, i.e.
   *   foo/.snap/bar -> foo//bar
   */
- char *ceph_mdsc_build_path(struct dentry *dentry, int *plen, u64 *pbase,
-                          int for_wire)
+ char *ceph_mdsc_build_path(struct ceph_mds_client *mdsc, struct dentry *dentry,
+                          int *plen, u64 *pbase, int for_wire)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct dentry *cur;
        struct inode *inode;
        char *path;
@@@ -2635,8 -2675,7 +2675,7 @@@ retry
                spin_lock(&cur->d_lock);
                inode = d_inode(cur);
                if (inode && ceph_snap(inode) == CEPH_SNAPDIR) {
-                       dout("build_path path+%d: %p SNAPDIR\n",
-                            pos, cur);
+                       doutc(cl, "path+%d: %p SNAPDIR\n", pos, cur);
                        spin_unlock(&cur->d_lock);
                        parent = dget_parent(cur);
                } else if (for_wire && inode && dentry != cur &&
                 * A rename didn't occur, but somehow we didn't end up where
                 * we thought we would. Throw a warning and try again.
                 */
-               pr_warn("build_path did not end path lookup where expected (pos = %d)\n",
-                       pos);
+               pr_warn_client(cl, "did not end path lookup where expected (pos = %d)\n",
+                              pos);
                goto retry;
        }
  
        *pbase = base;
        *plen = PATH_MAX - 1 - pos;
-       dout("build_path on %p %d built %llx '%.*s'\n",
-            dentry, d_count(dentry), base, *plen, path + pos);
+       doutc(cl, "on %p %d built %llx '%.*s'\n", dentry, d_count(dentry),
+             base, *plen, path + pos);
        return path + pos;
  }
  
- static int build_dentry_path(struct dentry *dentry, struct inode *dir,
-                            const char **ppath, int *ppathlen, u64 *pino,
-                            bool *pfreepath, bool parent_locked)
+ static int build_dentry_path(struct ceph_mds_client *mdsc, struct dentry *dentry,
+                            struct inode *dir, const char **ppath, int *ppathlen,
+                            u64 *pino, bool *pfreepath, bool parent_locked)
  {
        char *path;
  
                return 0;
        }
        rcu_read_unlock();
-       path = ceph_mdsc_build_path(dentry, ppathlen, pino, 1);
+       path = ceph_mdsc_build_path(mdsc, dentry, ppathlen, pino, 1);
        if (IS_ERR(path))
                return PTR_ERR(path);
        *ppath = path;
@@@ -2756,6 -2795,7 +2795,7 @@@ static int build_inode_path(struct inod
                            const char **ppath, int *ppathlen, u64 *pino,
                            bool *pfreepath)
  {
+       struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
        struct dentry *dentry;
        char *path;
  
                return 0;
        }
        dentry = d_find_alias(inode);
-       path = ceph_mdsc_build_path(dentry, ppathlen, pino, 1);
+       path = ceph_mdsc_build_path(mdsc, dentry, ppathlen, pino, 1);
        dput(dentry);
        if (IS_ERR(path))
                return PTR_ERR(path);
   * request arguments may be specified via an inode *, a dentry *, or
   * an explicit ino+path.
   */
- static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry,
-                                 struct inode *rdiri, const char *rpath,
-                                 u64 rino, const char **ppath, int *pathlen,
-                                 u64 *ino, bool *freepath, bool parent_locked)
+ static int set_request_path_attr(struct ceph_mds_client *mdsc, struct inode *rinode,
+                                struct dentry *rdentry, struct inode *rdiri,
+                                const char *rpath, u64 rino, const char **ppath,
+                                int *pathlen, u64 *ino, bool *freepath,
+                                bool parent_locked)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int r = 0;
  
        if (rinode) {
                r = build_inode_path(rinode, ppath, pathlen, ino, freepath);
-               dout(" inode %p %llx.%llx\n", rinode, ceph_ino(rinode),
-                    ceph_snap(rinode));
+               doutc(cl, " inode %p %llx.%llx\n", rinode, ceph_ino(rinode),
+                     ceph_snap(rinode));
        } else if (rdentry) {
-               r = build_dentry_path(rdentry, rdiri, ppath, pathlen, ino,
+               r = build_dentry_path(mdsc, rdentry, rdiri, ppath, pathlen, ino,
                                        freepath, parent_locked);
-               dout(" dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen,
-                    *ppath);
+               doutc(cl, " dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen, *ppath);
        } else if (rpath || rino) {
                *ino = rino;
                *ppath = rpath;
                *pathlen = rpath ? strlen(rpath) : 0;
-               dout(" path %.*s\n", *pathlen, rpath);
+               doutc(cl, " path %.*s\n", *pathlen, rpath);
        }
  
        return r;
@@@ -2840,6 -2881,17 +2881,17 @@@ static void encode_mclientrequest_tail(
        }
  }
  
+ static inline u16 mds_supported_head_version(struct ceph_mds_session *session)
+ {
+       if (!test_bit(CEPHFS_FEATURE_32BITS_RETRY_FWD, &session->s_features))
+               return 1;
+       if (!test_bit(CEPHFS_FEATURE_HAS_OWNER_UIDGID, &session->s_features))
+               return 2;
+       return CEPH_MDS_REQUEST_HEAD_VERSION;
+ }
  static struct ceph_mds_request_head_legacy *
  find_legacy_request_head(void *p, u64 features)
  {
@@@ -2861,6 -2913,7 +2913,7 @@@ static struct ceph_msg *create_request_
  {
        int mds = session->s_mds;
        struct ceph_mds_client *mdsc = session->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_msg *msg;
        struct ceph_mds_request_head_legacy *lhead;
        const char *path1 = NULL;
        void *p, *end;
        int ret;
        bool legacy = !(session->s_con.peer_features & CEPH_FEATURE_FS_BTIME);
-       bool old_version = !test_bit(CEPHFS_FEATURE_32BITS_RETRY_FWD,
-                                    &session->s_features);
+       u16 request_head_version = mds_supported_head_version(session);
+       kuid_t caller_fsuid = req->r_cred->fsuid;
+       kgid_t caller_fsgid = req->r_cred->fsgid;
  
-       ret = set_request_path_attr(req->r_inode, req->r_dentry,
+       ret = set_request_path_attr(mdsc, req->r_inode, req->r_dentry,
                              req->r_parent, req->r_path1, req->r_ino1.ino,
                              &path1, &pathlen1, &ino1, &freepath1,
                              test_bit(CEPH_MDS_R_PARENT_LOCKED,
        if (req->r_old_dentry &&
            !(req->r_old_dentry->d_flags & DCACHE_DISCONNECTED))
                old_dentry = req->r_old_dentry;
-       ret = set_request_path_attr(NULL, old_dentry,
+       ret = set_request_path_attr(mdsc, NULL, old_dentry,
                              req->r_old_dentry_dir,
                              req->r_path2, req->r_ino2.ino,
                              &path2, &pathlen2, &ino2, &freepath2, true);
         */
        if (legacy)
                len = sizeof(struct ceph_mds_request_head_legacy);
-       else if (old_version)
+       else if (request_head_version == 1)
                len = sizeof(struct ceph_mds_request_head_old);
+       else if (request_head_version == 2)
+               len = offsetofend(struct ceph_mds_request_head, ext_num_fwd);
        else
                len = sizeof(struct ceph_mds_request_head);
  
        lhead = find_legacy_request_head(msg->front.iov_base,
                                         session->s_con.peer_features);
  
+       if ((req->r_mnt_idmap != &nop_mnt_idmap) &&
+           !test_bit(CEPHFS_FEATURE_HAS_OWNER_UIDGID, &session->s_features)) {
+               WARN_ON_ONCE(!IS_CEPH_MDS_OP_NEWINODE(req->r_op));
+               if (enable_unsafe_idmap) {
+                       pr_warn_once_client(cl,
+                               "idmapped mount is used and CEPHFS_FEATURE_HAS_OWNER_UIDGID"
+                               " is not supported by MDS. UID/GID-based restrictions may"
+                               " not work properly.\n");
+                       caller_fsuid = from_vfsuid(req->r_mnt_idmap, &init_user_ns,
+                                                  VFSUIDT_INIT(req->r_cred->fsuid));
+                       caller_fsgid = from_vfsgid(req->r_mnt_idmap, &init_user_ns,
+                                                  VFSGIDT_INIT(req->r_cred->fsgid));
+               } else {
+                       pr_err_ratelimited_client(cl,
+                               "idmapped mount is used and CEPHFS_FEATURE_HAS_OWNER_UIDGID"
+                               " is not supported by MDS. Fail request with -EIO.\n");
+                       ret = -EIO;
+                       goto out_err;
+               }
+       }
        /*
         * The ceph_mds_request_head_legacy didn't contain a version field, and
         * one was added when we moved the message version from 3->4.
        if (legacy) {
                msg->hdr.version = cpu_to_le16(3);
                p = msg->front.iov_base + sizeof(*lhead);
-       } else if (old_version) {
+       } else if (request_head_version == 1) {
                struct ceph_mds_request_head_old *ohead = msg->front.iov_base;
  
                msg->hdr.version = cpu_to_le16(4);
                ohead->version = cpu_to_le16(1);
                p = msg->front.iov_base + sizeof(*ohead);
+       } else if (request_head_version == 2) {
+               struct ceph_mds_request_head *nhead = msg->front.iov_base;
+               msg->hdr.version = cpu_to_le16(6);
+               nhead->version = cpu_to_le16(2);
+               p = msg->front.iov_base + offsetofend(struct ceph_mds_request_head, ext_num_fwd);
        } else {
                struct ceph_mds_request_head *nhead = msg->front.iov_base;
+               kuid_t owner_fsuid;
+               kgid_t owner_fsgid;
  
                msg->hdr.version = cpu_to_le16(6);
                nhead->version = cpu_to_le16(CEPH_MDS_REQUEST_HEAD_VERSION);
+               nhead->struct_len = cpu_to_le32(sizeof(struct ceph_mds_request_head));
+               if (IS_CEPH_MDS_OP_NEWINODE(req->r_op)) {
+                       owner_fsuid = from_vfsuid(req->r_mnt_idmap, &init_user_ns,
+                                               VFSUIDT_INIT(req->r_cred->fsuid));
+                       owner_fsgid = from_vfsgid(req->r_mnt_idmap, &init_user_ns,
+                                               VFSGIDT_INIT(req->r_cred->fsgid));
+                       nhead->owner_uid = cpu_to_le32(from_kuid(&init_user_ns, owner_fsuid));
+                       nhead->owner_gid = cpu_to_le32(from_kgid(&init_user_ns, owner_fsgid));
+               } else {
+                       nhead->owner_uid = cpu_to_le32(-1);
+                       nhead->owner_gid = cpu_to_le32(-1);
+               }
                p = msg->front.iov_base + sizeof(*nhead);
        }
  
        lhead->mdsmap_epoch = cpu_to_le32(mdsc->mdsmap->m_epoch);
        lhead->op = cpu_to_le32(req->r_op);
        lhead->caller_uid = cpu_to_le32(from_kuid(&init_user_ns,
-                                                 req->r_cred->fsuid));
+                                                 caller_fsuid));
        lhead->caller_gid = cpu_to_le32(from_kgid(&init_user_ns,
-                                                 req->r_cred->fsgid));
+                                                 caller_fsgid));
        lhead->ino = cpu_to_le64(req->r_deleg_ino);
        lhead->args = req->r_args;
  
@@@ -3099,6 -3202,7 +3202,7 @@@ static int __prepare_send_request(struc
  {
        int mds = session->s_mds;
        struct ceph_mds_client *mdsc = session->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request_head_legacy *lhead;
        struct ceph_mds_request_head *nhead;
        struct ceph_msg *msg;
               old_max_retry = 1 << (old_max_retry * BITS_PER_BYTE);
               if ((old_version && req->r_attempts >= old_max_retry) ||
                   ((uint32_t)req->r_attempts >= U32_MAX)) {
-                       pr_warn_ratelimited("%s request tid %llu seq overflow\n",
-                                           __func__, req->r_tid);
+                       pr_warn_ratelimited_client(cl, "request tid %llu seq overflow\n",
+                                                  req->r_tid);
                        return -EMULTIHOP;
               }
        }
                else
                        req->r_sent_on_mseq = -1;
        }
-       dout("%s %p tid %lld %s (attempt %d)\n", __func__, req,
-            req->r_tid, ceph_mds_op_name(req->r_op), req->r_attempts);
+       doutc(cl, "%p tid %lld %s (attempt %d)\n", req, req->r_tid,
+             ceph_mds_op_name(req->r_op), req->r_attempts);
  
        if (test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags)) {
                void *p;
                nhead->ext_num_retry = cpu_to_le32(req->r_attempts - 1);
        }
  
-       dout(" r_parent = %p\n", req->r_parent);
+       doutc(cl, " r_parent = %p\n", req->r_parent);
        return 0;
  }
  
@@@ -3230,6 -3334,7 +3334,7 @@@ static int __send_request(struct ceph_m
  static void __do_request(struct ceph_mds_client *mdsc,
                        struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_session *session = NULL;
        int mds = -1;
        int err = 0;
        }
  
        if (READ_ONCE(mdsc->fsc->mount_state) == CEPH_MOUNT_FENCE_IO) {
-               dout("do_request metadata corrupted\n");
+               doutc(cl, "metadata corrupted\n");
                err = -EIO;
                goto finish;
        }
        if (req->r_timeout &&
            time_after_eq(jiffies, req->r_started + req->r_timeout)) {
-               dout("do_request timed out\n");
+               doutc(cl, "timed out\n");
                err = -ETIMEDOUT;
                goto finish;
        }
        if (READ_ONCE(mdsc->fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
-               dout("do_request forced umount\n");
+               doutc(cl, "forced umount\n");
                err = -EIO;
                goto finish;
        }
        if (READ_ONCE(mdsc->fsc->mount_state) == CEPH_MOUNT_MOUNTING) {
                if (mdsc->mdsmap_err) {
                        err = mdsc->mdsmap_err;
-                       dout("do_request mdsmap err %d\n", err);
+                       doutc(cl, "mdsmap err %d\n", err);
                        goto finish;
                }
                if (mdsc->mdsmap->m_epoch == 0) {
-                       dout("do_request no mdsmap, waiting for map\n");
+                       doutc(cl, "no mdsmap, waiting for map\n");
                        list_add(&req->r_wait, &mdsc->waiting_for_map);
                        return;
                }
                        err = -EJUKEBOX;
                        goto finish;
                }
-               dout("do_request no mds or not active, waiting for map\n");
+               doutc(cl, "no mds or not active, waiting for map\n");
                list_add(&req->r_wait, &mdsc->waiting_for_map);
                return;
        }
        }
        req->r_session = ceph_get_mds_session(session);
  
-       dout("do_request mds%d session %p state %s\n", mds, session,
-            ceph_session_state_name(session->s_state));
+       doutc(cl, "mds%d session %p state %s\n", mds, session,
+             ceph_session_state_name(session->s_state));
  
        /*
         * The old ceph will crash the MDSs when see unknown OPs
                spin_lock(&ci->i_ceph_lock);
                cap = ci->i_auth_cap;
                if (ci->i_ceph_flags & CEPH_I_ASYNC_CREATE && mds != cap->mds) {
-                       dout("do_request session changed for auth cap %d -> %d\n",
-                            cap->session->s_mds, session->s_mds);
+                       doutc(cl, "session changed for auth cap %d -> %d\n",
+                             cap->session->s_mds, session->s_mds);
  
                        /* Remove the auth cap from old session */
                        spin_lock(&cap->session->s_cap_lock);
@@@ -3421,7 -3526,7 +3526,7 @@@ out_session
        ceph_put_mds_session(session);
  finish:
        if (err) {
-               dout("__do_request early error %d\n", err);
+               doutc(cl, "early error %d\n", err);
                req->r_err = err;
                complete_request(mdsc, req);
                __unregister_request(mdsc, req);
  static void __wake_requests(struct ceph_mds_client *mdsc,
                            struct list_head *head)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request *req;
        LIST_HEAD(tmp_list);
  
                req = list_entry(tmp_list.next,
                                 struct ceph_mds_request, r_wait);
                list_del_init(&req->r_wait);
-               dout(" wake request %p tid %llu\n", req, req->r_tid);
+               doutc(cl, " wake request %p tid %llu\n", req,
+                     req->r_tid);
                __do_request(mdsc, req);
        }
  }
   */
  static void kick_requests(struct ceph_mds_client *mdsc, int mds)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request *req;
        struct rb_node *p = rb_first(&mdsc->request_tree);
  
-       dout("kick_requests mds%d\n", mds);
+       doutc(cl, "kick_requests mds%d\n", mds);
        while (p) {
                req = rb_entry(p, struct ceph_mds_request, r_node);
                p = rb_next(p);
                        continue; /* only new requests */
                if (req->r_session &&
                    req->r_session->s_mds == mds) {
-                       dout(" kicking tid %llu\n", req->r_tid);
+                       doutc(cl, " kicking tid %llu\n", req->r_tid);
                        list_del_init(&req->r_wait);
                        __do_request(mdsc, req);
                }
  int ceph_mdsc_submit_request(struct ceph_mds_client *mdsc, struct inode *dir,
                              struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int err = 0;
  
        /* take CAP_PIN refs for r_inode, r_parent, r_old_dentry */
        if (req->r_inode) {
                err = ceph_wait_on_async_create(req->r_inode);
                if (err) {
-                       dout("%s: wait for async create returned: %d\n",
-                            __func__, err);
+                       doutc(cl, "wait for async create returned: %d\n", err);
                        return err;
                }
        }
        if (!err && req->r_old_inode) {
                err = ceph_wait_on_async_create(req->r_old_inode);
                if (err) {
-                       dout("%s: wait for async create returned: %d\n",
-                            __func__, err);
+                       doutc(cl, "wait for async create returned: %d\n", err);
                        return err;
                }
        }
  
-       dout("submit_request on %p for inode %p\n", req, dir);
+       doutc(cl, "submit_request on %p for inode %p\n", req, dir);
        mutex_lock(&mdsc->mutex);
        __register_request(mdsc, req, dir);
        __do_request(mdsc, req);
@@@ -3527,10 -3634,11 +3634,11 @@@ int ceph_mdsc_wait_request(struct ceph_
                           struct ceph_mds_request *req,
                           ceph_mds_request_wait_callback_t wait_func)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int err;
  
        /* wait */
-       dout("do_request waiting\n");
+       doutc(cl, "do_request waiting\n");
        if (wait_func) {
                err = wait_func(mdsc, req);
        } else {
                else
                        err = timeleft;  /* killed */
        }
-       dout("do_request waited, got %d\n", err);
+       doutc(cl, "do_request waited, got %d\n", err);
        mutex_lock(&mdsc->mutex);
  
        /* only abort if we didn't race with a real reply */
        if (test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags)) {
                err = le32_to_cpu(req->r_reply_info.head->result);
        } else if (err < 0) {
-               dout("aborted request %lld with %d\n", req->r_tid, err);
+               doutc(cl, "aborted request %lld with %d\n", req->r_tid, err);
  
                /*
                 * ensure we aren't running concurrently with
@@@ -3582,15 -3690,16 +3690,16 @@@ int ceph_mdsc_do_request(struct ceph_md
                         struct inode *dir,
                         struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        int err;
  
-       dout("do_request on %p\n", req);
+       doutc(cl, "do_request on %p\n", req);
  
        /* issue */
        err = ceph_mdsc_submit_request(mdsc, dir, req);
        if (!err)
                err = ceph_mdsc_wait_request(mdsc, req, NULL);
-       dout("do_request %p done, result %d\n", req, err);
+       doutc(cl, "do_request %p done, result %d\n", req, err);
        return err;
  }
  
@@@ -3602,8 -3711,10 +3711,10 @@@ void ceph_invalidate_dir_request(struc
  {
        struct inode *dir = req->r_parent;
        struct inode *old_dir = req->r_old_dentry_dir;
+       struct ceph_client *cl = req->r_mdsc->fsc->client;
  
-       dout("invalidate_dir_request %p %p (complete, lease(s))\n", dir, old_dir);
+       doutc(cl, "invalidate_dir_request %p %p (complete, lease(s))\n",
+             dir, old_dir);
  
        ceph_dir_clear_complete(dir);
        if (old_dir)
  static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
  {
        struct ceph_mds_client *mdsc = session->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request *req;
        struct ceph_mds_reply_head *head = msg->front.iov_base;
        struct ceph_mds_reply_info_parsed *rinfo;  /* parsed reply info */
        bool close_sessions = false;
  
        if (msg->front.iov_len < sizeof(*head)) {
-               pr_err("mdsc_handle_reply got corrupt (short) reply\n");
+               pr_err_client(cl, "got corrupt (short) reply\n");
                ceph_msg_dump(msg);
                return;
        }
        mutex_lock(&mdsc->mutex);
        req = lookup_get_request(mdsc, tid);
        if (!req) {
-               dout("handle_reply on unknown tid %llu\n", tid);
+               doutc(cl, "on unknown tid %llu\n", tid);
                mutex_unlock(&mdsc->mutex);
                return;
        }
-       dout("handle_reply %p\n", req);
+       doutc(cl, "handle_reply %p\n", req);
  
        /* correct session? */
        if (req->r_session != session) {
-               pr_err("mdsc_handle_reply got %llu on session mds%d"
-                      " not mds%d\n", tid, session->s_mds,
-                      req->r_session ? req->r_session->s_mds : -1);
+               pr_err_client(cl, "got %llu on session mds%d not mds%d\n",
+                             tid, session->s_mds,
+                             req->r_session ? req->r_session->s_mds : -1);
                mutex_unlock(&mdsc->mutex);
                goto out;
        }
        /* dup? */
        if ((test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags) && !head->safe) ||
            (test_bit(CEPH_MDS_R_GOT_SAFE, &req->r_req_flags) && head->safe)) {
-               pr_warn("got a dup %s reply on %llu from mds%d\n",
-                          head->safe ? "safe" : "unsafe", tid, mds);
+               pr_warn_client(cl, "got a dup %s reply on %llu from mds%d\n",
+                              head->safe ? "safe" : "unsafe", tid, mds);
                mutex_unlock(&mdsc->mutex);
                goto out;
        }
        if (test_bit(CEPH_MDS_R_GOT_SAFE, &req->r_req_flags)) {
-               pr_warn("got unsafe after safe on %llu from mds%d\n",
-                          tid, mds);
+               pr_warn_client(cl, "got unsafe after safe on %llu from mds%d\n",
+                              tid, mds);
                mutex_unlock(&mdsc->mutex);
                goto out;
        }
                         * response.  And even if it did, there is nothing
                         * useful we could do with a revised return value.
                         */
-                       dout("got safe reply %llu, mds%d\n", tid, mds);
+                       doutc(cl, "got safe reply %llu, mds%d\n", tid, mds);
  
                        mutex_unlock(&mdsc->mutex);
                        goto out;
                list_add_tail(&req->r_unsafe_item, &req->r_session->s_unsafe);
        }
  
-       dout("handle_reply tid %lld result %d\n", tid, result);
+       doutc(cl, "tid %lld result %d\n", tid, result);
        if (test_bit(CEPHFS_FEATURE_REPLY_ENCODING, &session->s_features))
                err = parse_reply_info(session, msg, req, (u64)-1);
        else
  
        mutex_lock(&session->s_mutex);
        if (err < 0) {
-               pr_err("mdsc_handle_reply got corrupt reply mds%d(tid:%lld)\n", mds, tid);
+               pr_err_client(cl, "got corrupt reply mds%d(tid:%lld)\n",
+                             mds, tid);
                ceph_msg_dump(msg);
                goto out_err;
        }
@@@ -3806,7 -3919,7 +3919,7 @@@ out_err
                        set_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags);
                }
        } else {
-               dout("reply arrived after request %lld was aborted\n", tid);
+               doutc(cl, "reply arrived after request %lld was aborted\n", tid);
        }
        mutex_unlock(&mdsc->mutex);
  
@@@ -3835,6 -3948,7 +3948,7 @@@ static void handle_forward(struct ceph_
                           struct ceph_mds_session *session,
                           struct ceph_msg *msg)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request *req;
        u64 tid = le64_to_cpu(msg->hdr.tid);
        u32 next_mds;
        req = lookup_get_request(mdsc, tid);
        if (!req) {
                mutex_unlock(&mdsc->mutex);
-               dout("forward tid %llu to mds%d - req dne\n", tid, next_mds);
+               doutc(cl, "forward tid %llu to mds%d - req dne\n", tid, next_mds);
                return;  /* dup reply? */
        }
  
        if (test_bit(CEPH_MDS_R_ABORTED, &req->r_req_flags)) {
-               dout("forward tid %llu aborted, unregistering\n", tid);
+               doutc(cl, "forward tid %llu aborted, unregistering\n", tid);
                __unregister_request(mdsc, req);
        } else if (fwd_seq <= req->r_num_fwd || (uint32_t)fwd_seq >= U32_MAX) {
                /*
                set_bit(CEPH_MDS_R_ABORTED, &req->r_req_flags);
                mutex_unlock(&req->r_fill_mutex);
                aborted = true;
-               pr_warn_ratelimited("forward tid %llu seq overflow\n", tid);
+               pr_warn_ratelimited_client(cl, "forward tid %llu seq overflow\n",
+                                          tid);
        } else {
                /* resend. forward race not possible; mds would drop */
-               dout("forward tid %llu to mds%d (we resend)\n", tid, next_mds);
+               doutc(cl, "forward tid %llu to mds%d (we resend)\n", tid, next_mds);
                BUG_ON(req->r_err);
                BUG_ON(test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags));
                req->r_attempts = 0;
        return;
  
  bad:
-       pr_err("mdsc_handle_forward decode error err=%d\n", err);
+       pr_err_client(cl, "decode error err=%d\n", err);
        ceph_msg_dump(msg);
  }
  
@@@ -3933,6 -4048,7 +4048,7 @@@ static void handle_session(struct ceph_
                           struct ceph_msg *msg)
  {
        struct ceph_mds_client *mdsc = session->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        int mds = session->s_mds;
        int msg_version = le16_to_cpu(msg->hdr.version);
        void *p = msg->front.iov_base;
                /* version >= 5, flags   */
                ceph_decode_32_safe(&p, end, flags, bad);
                if (flags & CEPH_SESSION_BLOCKLISTED) {
-                       pr_warn("mds%d session blocklisted\n", session->s_mds);
+                       pr_warn_client(cl, "mds%d session blocklisted\n",
+                                      session->s_mds);
                        blocklisted = true;
                }
        }
  
        mutex_lock(&session->s_mutex);
  
-       dout("handle_session mds%d %s %p state %s seq %llu\n",
-            mds, ceph_session_op_name(op), session,
-            ceph_session_state_name(session->s_state), seq);
+       doutc(cl, "mds%d %s %p state %s seq %llu\n", mds,
+             ceph_session_op_name(op), session,
+             ceph_session_state_name(session->s_state), seq);
  
        if (session->s_state == CEPH_MDS_SESSION_HUNG) {
                session->s_state = CEPH_MDS_SESSION_OPEN;
-               pr_info("mds%d came back\n", session->s_mds);
+               pr_info_client(cl, "mds%d came back\n", session->s_mds);
        }
  
        switch (op) {
        case CEPH_SESSION_OPEN:
                if (session->s_state == CEPH_MDS_SESSION_RECONNECTING)
-                       pr_info("mds%d reconnect success\n", session->s_mds);
+                       pr_info_client(cl, "mds%d reconnect success\n",
+                                      session->s_mds);
  
                if (session->s_state == CEPH_MDS_SESSION_OPEN) {
-                       pr_notice("mds%d is already opened\n", session->s_mds);
+                       pr_notice_client(cl, "mds%d is already opened\n",
+                                        session->s_mds);
                } else {
                        session->s_state = CEPH_MDS_SESSION_OPEN;
                        session->s_features = features;
  
        case CEPH_SESSION_CLOSE:
                if (session->s_state == CEPH_MDS_SESSION_RECONNECTING)
-                       pr_info("mds%d reconnect denied\n", session->s_mds);
+                       pr_info_client(cl, "mds%d reconnect denied\n",
+                                      session->s_mds);
                session->s_state = CEPH_MDS_SESSION_CLOSED;
                cleanup_session_requests(mdsc, session);
                remove_session_caps(session);
                break;
  
        case CEPH_SESSION_STALE:
-               pr_info("mds%d caps went stale, renewing\n",
-                       session->s_mds);
+               pr_info_client(cl, "mds%d caps went stale, renewing\n",
+                              session->s_mds);
                atomic_inc(&session->s_cap_gen);
                session->s_cap_ttl = jiffies - 1;
                send_renew_caps(mdsc, session);
                break;
  
        case CEPH_SESSION_FORCE_RO:
-               dout("force_session_readonly %p\n", session);
+               doutc(cl, "force_session_readonly %p\n", session);
                spin_lock(&session->s_cap_lock);
                session->s_readonly = true;
                spin_unlock(&session->s_cap_lock);
  
        case CEPH_SESSION_REJECT:
                WARN_ON(session->s_state != CEPH_MDS_SESSION_OPENING);
-               pr_info("mds%d rejected session\n", session->s_mds);
+               pr_info_client(cl, "mds%d rejected session\n",
+                              session->s_mds);
                session->s_state = CEPH_MDS_SESSION_REJECTED;
                cleanup_session_requests(mdsc, session);
                remove_session_caps(session);
                break;
  
        default:
-               pr_err("mdsc_handle_session bad op %d mds%d\n", op, mds);
+               pr_err_client(cl, "bad op %d mds%d\n", op, mds);
                WARN_ON(1);
        }
  
        return;
  
  bad:
-       pr_err("mdsc_handle_session corrupt message mds%d len %d\n", mds,
-              (int)msg->front.iov_len);
+       pr_err_client(cl, "corrupt message mds%d len %d\n", mds,
+                     (int)msg->front.iov_len);
        ceph_msg_dump(msg);
        return;
  }
  
  void ceph_mdsc_release_dir_caps(struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = req->r_mdsc->fsc->client;
        int dcaps;
  
        dcaps = xchg(&req->r_dir_caps, 0);
        if (dcaps) {
-               dout("releasing r_dir_caps=%s\n", ceph_cap_string(dcaps));
+               doutc(cl, "releasing r_dir_caps=%s\n", ceph_cap_string(dcaps));
                ceph_put_cap_refs(ceph_inode(req->r_parent), dcaps);
        }
  }
  
  void ceph_mdsc_release_dir_caps_no_check(struct ceph_mds_request *req)
  {
+       struct ceph_client *cl = req->r_mdsc->fsc->client;
        int dcaps;
  
        dcaps = xchg(&req->r_dir_caps, 0);
        if (dcaps) {
-               dout("releasing r_dir_caps=%s\n", ceph_cap_string(dcaps));
+               doutc(cl, "releasing r_dir_caps=%s\n", ceph_cap_string(dcaps));
                ceph_put_cap_refs_no_check_caps(ceph_inode(req->r_parent),
                                                dcaps);
        }
@@@ -4146,7 -4269,7 +4269,7 @@@ static void replay_unsafe_requests(stru
        struct ceph_mds_request *req, *nreq;
        struct rb_node *p;
  
-       dout("replay_unsafe_requests mds%d\n", session->s_mds);
+       doutc(mdsc->fsc->client, "mds%d\n", session->s_mds);
  
        mutex_lock(&mdsc->mutex);
        list_for_each_entry_safe(req, nreq, &session->s_unsafe, r_unsafe_item)
@@@ -4290,6 -4413,8 +4413,8 @@@ out_unlock
   */
  static int reconnect_caps_cb(struct inode *inode, int mds, void *arg)
  {
+       struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        union {
                struct ceph_mds_cap_reconnect v2;
                struct ceph_mds_cap_reconnect_v1 v1;
        dentry = d_find_primary(inode);
        if (dentry) {
                /* set pathbase to parent dir when msg_version >= 2 */
-               path = ceph_mdsc_build_path(dentry, &pathlen, &pathbase,
+               path = ceph_mdsc_build_path(mdsc, dentry, &pathlen, &pathbase,
                                            recon_state->msg_version >= 2);
                dput(dentry);
                if (IS_ERR(path)) {
                err = 0;
                goto out_err;
        }
-       dout(" adding %p ino %llx.%llx cap %p %lld %s\n",
-            inode, ceph_vinop(inode), cap, cap->cap_id,
-            ceph_cap_string(cap->issued));
+       doutc(cl, " adding %p ino %llx.%llx cap %p %lld %s\n", inode,
+             ceph_vinop(inode), cap, cap->cap_id,
+             ceph_cap_string(cap->issued));
  
        cap->seq = 0;        /* reset cap seq */
        cap->issue_seq = 0;  /* and issue_seq */
                rec.v2.flock_len = (__force __le32)
                        ((ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK) ? 0 : 1);
        } else {
 +              struct timespec64 ts;
 +
                rec.v1.cap_id = cpu_to_le64(cap->cap_id);
                rec.v1.wanted = cpu_to_le32(__ceph_caps_wanted(ci));
                rec.v1.issued = cpu_to_le32(cap->issued);
                rec.v1.size = cpu_to_le64(i_size_read(inode));
 -              ceph_encode_timespec64(&rec.v1.mtime, &inode->i_mtime);
 -              ceph_encode_timespec64(&rec.v1.atime, &inode->i_atime);
 +              ts = inode_get_mtime(inode);
 +              ceph_encode_timespec64(&rec.v1.mtime, &ts);
 +              ts = inode_get_atime(inode);
 +              ceph_encode_timespec64(&rec.v1.atime, &ts);
                rec.v1.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
                rec.v1.pathbase = cpu_to_le64(pathbase);
        }
@@@ -4482,6 -4603,7 +4607,7 @@@ static int encode_snap_realms(struct ce
  {
        struct rb_node *p;
        struct ceph_pagelist *pagelist = recon_state->pagelist;
+       struct ceph_client *cl = mdsc->fsc->client;
        int err = 0;
  
        if (recon_state->msg_version >= 4) {
                        ceph_pagelist_encode_32(pagelist, sizeof(sr_rec));
                }
  
-               dout(" adding snap realm %llx seq %lld parent %llx\n",
-                    realm->ino, realm->seq, realm->parent_ino);
+               doutc(cl, " adding snap realm %llx seq %lld parent %llx\n",
+                     realm->ino, realm->seq, realm->parent_ino);
                sr_rec.ino = cpu_to_le64(realm->ino);
                sr_rec.seq = cpu_to_le64(realm->seq);
                sr_rec.parent = cpu_to_le64(realm->parent_ino);
@@@ -4550,6 -4672,7 +4676,7 @@@ fail
  static void send_mds_reconnect(struct ceph_mds_client *mdsc,
                               struct ceph_mds_session *session)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_msg *reply;
        int mds = session->s_mds;
        int err = -ENOMEM;
        };
        LIST_HEAD(dispose);
  
-       pr_info("mds%d reconnect start\n", mds);
+       pr_info_client(cl, "mds%d reconnect start\n", mds);
  
        recon_state.pagelist = ceph_pagelist_alloc(GFP_NOFS);
        if (!recon_state.pagelist)
        session->s_state = CEPH_MDS_SESSION_RECONNECTING;
        session->s_seq = 0;
  
-       dout("session %p state %s\n", session,
-            ceph_session_state_name(session->s_state));
+       doutc(cl, "session %p state %s\n", session,
+             ceph_session_state_name(session->s_state));
  
        atomic_inc(&session->s_cap_gen);
  
@@@ -4709,7 -4832,8 +4836,8 @@@ fail
  fail_nomsg:
        ceph_pagelist_release(recon_state.pagelist);
  fail_nopagelist:
-       pr_err("error %d preparing reconnect for mds%d\n", err, mds);
+       pr_err_client(cl, "error %d preparing reconnect for mds%d\n",
+                     err, mds);
        return;
  }
  
@@@ -4728,9 -4852,9 +4856,9 @@@ static void check_new_map(struct ceph_m
        int oldstate, newstate;
        struct ceph_mds_session *s;
        unsigned long targets[DIV_ROUND_UP(CEPH_MAX_MDS, sizeof(unsigned long))] = {0};
+       struct ceph_client *cl = mdsc->fsc->client;
  
-       dout("check_new_map new %u old %u\n",
-            newmap->m_epoch, oldmap->m_epoch);
+       doutc(cl, "new %u old %u\n", newmap->m_epoch, oldmap->m_epoch);
  
        if (newmap->m_info) {
                for (i = 0; i < newmap->possible_max_rank; i++) {
                oldstate = ceph_mdsmap_get_state(oldmap, i);
                newstate = ceph_mdsmap_get_state(newmap, i);
  
-               dout("check_new_map mds%d state %s%s -> %s%s (session %s)\n",
-                    i, ceph_mds_state_name(oldstate),
-                    ceph_mdsmap_is_laggy(oldmap, i) ? " (laggy)" : "",
-                    ceph_mds_state_name(newstate),
-                    ceph_mdsmap_is_laggy(newmap, i) ? " (laggy)" : "",
-                    ceph_session_state_name(s->s_state));
+               doutc(cl, "mds%d state %s%s -> %s%s (session %s)\n",
+                     i, ceph_mds_state_name(oldstate),
+                     ceph_mdsmap_is_laggy(oldmap, i) ? " (laggy)" : "",
+                     ceph_mds_state_name(newstate),
+                     ceph_mdsmap_is_laggy(newmap, i) ? " (laggy)" : "",
+                     ceph_session_state_name(s->s_state));
  
                if (i >= newmap->possible_max_rank) {
                        /* force close session for stopped mds */
                    newstate >= CEPH_MDS_STATE_ACTIVE) {
                        if (oldstate != CEPH_MDS_STATE_CREATING &&
                            oldstate != CEPH_MDS_STATE_STARTING)
-                               pr_info("mds%d recovery completed\n", s->s_mds);
+                               pr_info_client(cl, "mds%d recovery completed\n",
+                                              s->s_mds);
                        kick_requests(mdsc, i);
                        mutex_unlock(&mdsc->mutex);
                        mutex_lock(&s->s_mutex);
                        s = __open_export_target_session(mdsc, i);
                        if (IS_ERR(s)) {
                                err = PTR_ERR(s);
-                               pr_err("failed to open export target session, err %d\n",
-                                      err);
+                               pr_err_client(cl,
+                                             "failed to open export target session, err %d\n",
+                                             err);
                                continue;
                        }
                }
-               dout("send reconnect to export target mds.%d\n", i);
+               doutc(cl, "send reconnect to export target mds.%d\n", i);
                mutex_unlock(&mdsc->mutex);
                send_mds_reconnect(mdsc, s);
                ceph_put_mds_session(s);
                if (s->s_state == CEPH_MDS_SESSION_OPEN ||
                    s->s_state == CEPH_MDS_SESSION_HUNG ||
                    s->s_state == CEPH_MDS_SESSION_CLOSING) {
-                       dout(" connecting to export targets of laggy mds%d\n",
-                            i);
+                       doutc(cl, " connecting to export targets of laggy mds%d\n", i);
                        __open_export_target_sessions(mdsc, s);
                }
        }
@@@ -4897,6 -5022,7 +5026,7 @@@ static void handle_lease(struct ceph_md
                         struct ceph_mds_session *session,
                         struct ceph_msg *msg)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct super_block *sb = mdsc->fsc->sb;
        struct inode *inode;
        struct dentry *parent, *dentry;
        struct qstr dname;
        int release = 0;
  
-       dout("handle_lease from mds%d\n", mds);
+       doutc(cl, "from mds%d\n", mds);
  
        if (!ceph_inc_mds_stopping_blocker(mdsc, session))
                return;
  
        /* lookup inode */
        inode = ceph_find_inode(sb, vino);
-       dout("handle_lease %s, ino %llx %p %.*s\n",
-            ceph_lease_op_name(h->action), vino.ino, inode,
-            dname.len, dname.name);
+       doutc(cl, "%s, ino %llx %p %.*s\n", ceph_lease_op_name(h->action),
+             vino.ino, inode, dname.len, dname.name);
  
        mutex_lock(&session->s_mutex);
        if (!inode) {
-               dout("handle_lease no inode %llx\n", vino.ino);
+               doutc(cl, "no inode %llx\n", vino.ino);
                goto release;
        }
  
        /* dentry */
        parent = d_find_alias(inode);
        if (!parent) {
-               dout("no parent dentry on inode %p\n", inode);
+               doutc(cl, "no parent dentry on inode %p\n", inode);
                WARN_ON(1);
                goto release;  /* hrm... */
        }
@@@ -4999,7 -5124,7 +5128,7 @@@ out
  bad:
        ceph_dec_mds_stopping_blocker(mdsc);
  
-       pr_err("corrupt lease message\n");
+       pr_err_client(cl, "corrupt lease message\n");
        ceph_msg_dump(msg);
  }
  
@@@ -5007,13 -5132,14 +5136,14 @@@ void ceph_mdsc_lease_send_msg(struct ce
                              struct dentry *dentry, char action,
                              u32 seq)
  {
+       struct ceph_client *cl = session->s_mdsc->fsc->client;
        struct ceph_msg *msg;
        struct ceph_mds_lease *lease;
        struct inode *dir;
        int len = sizeof(*lease) + sizeof(u32) + NAME_MAX;
  
-       dout("lease_send_msg identry %p %s to mds%d\n",
-            dentry, ceph_lease_op_name(action), session->s_mds);
+       doutc(cl, "identry %p %s to mds%d\n", dentry, ceph_lease_op_name(action),
+             session->s_mds);
  
        msg = ceph_msg_new(CEPH_MSG_CLIENT_LEASE, len, GFP_NOFS, false);
        if (!msg)
@@@ -5046,6 -5172,7 +5176,7 @@@ static void lock_unlock_session(struct 
  
  static void maybe_recover_session(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_fs_client *fsc = mdsc->fsc;
  
        if (!ceph_test_mount_opt(fsc, CLEANRECOVER))
        if (!READ_ONCE(fsc->blocklisted))
                return;
  
-       pr_info("auto reconnect after blocklisted\n");
+       pr_info_client(cl, "auto reconnect after blocklisted\n");
        ceph_force_reconnect(fsc->sb);
  }
  
  bool check_session_state(struct ceph_mds_session *s)
  {
+       struct ceph_client *cl = s->s_mdsc->fsc->client;
        switch (s->s_state) {
        case CEPH_MDS_SESSION_OPEN:
                if (s->s_ttl && time_after(jiffies, s->s_ttl)) {
                        s->s_state = CEPH_MDS_SESSION_HUNG;
-                       pr_info("mds%d hung\n", s->s_mds);
+                       pr_info_client(cl, "mds%d hung\n", s->s_mds);
                }
                break;
        case CEPH_MDS_SESSION_CLOSING:
   */
  void inc_session_sequence(struct ceph_mds_session *s)
  {
+       struct ceph_client *cl = s->s_mdsc->fsc->client;
        lockdep_assert_held(&s->s_mutex);
  
        s->s_seq++;
        if (s->s_state == CEPH_MDS_SESSION_CLOSING) {
                int ret;
  
-               dout("resending session close request for mds%d\n", s->s_mds);
+               doutc(cl, "resending session close request for mds%d\n", s->s_mds);
                ret = request_close_session(s);
                if (ret < 0)
-                       pr_err("unable to close session to mds%d: %d\n",
-                              s->s_mds, ret);
+                       pr_err_client(cl, "unable to close session to mds%d: %d\n",
+                                     s->s_mds, ret);
        }
  }
  
@@@ -5127,7 -5258,7 +5262,7 @@@ static void delayed_work(struct work_st
        int renew_caps;
        int i;
  
-       dout("mdsc delayed_work\n");
+       doutc(mdsc->fsc->client, "mdsc delayed_work\n");
  
        if (mdsc->stopping >= CEPH_MDSC_STOPPING_FLUSHED)
                return;
@@@ -5256,6 -5387,7 +5391,7 @@@ err_mdsc
   */
  static void wait_requests(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_options *opts = mdsc->fsc->client->options;
        struct ceph_mds_request *req;
  
        if (__get_oldest_req(mdsc)) {
                mutex_unlock(&mdsc->mutex);
  
-               dout("wait_requests waiting for requests\n");
+               doutc(cl, "waiting for requests\n");
                wait_for_completion_timeout(&mdsc->safe_umount_waiters,
                                    ceph_timeout_jiffies(opts->mount_timeout));
  
                /* tear down remaining requests */
                mutex_lock(&mdsc->mutex);
                while ((req = __get_oldest_req(mdsc))) {
-                       dout("wait_requests timed out on tid %llu\n",
-                            req->r_tid);
+                       doutc(cl, "timed out on tid %llu\n", req->r_tid);
                        list_del_init(&req->r_wait);
                        __unregister_request(mdsc, req);
                }
        }
        mutex_unlock(&mdsc->mutex);
-       dout("wait_requests done\n");
+       doutc(cl, "done\n");
  }
  
  void send_flush_mdlog(struct ceph_mds_session *s)
  {
+       struct ceph_client *cl = s->s_mdsc->fsc->client;
        struct ceph_msg *msg;
  
        /*
                return;
  
        mutex_lock(&s->s_mutex);
-       dout("request mdlog flush to mds%d (%s)s seq %lld\n", s->s_mds,
-            ceph_session_state_name(s->s_state), s->s_seq);
+       doutc(cl, "request mdlog flush to mds%d (%s)s seq %lld\n",
+             s->s_mds, ceph_session_state_name(s->s_state), s->s_seq);
        msg = ceph_create_session_msg(CEPH_SESSION_REQUEST_FLUSH_MDLOG,
                                      s->s_seq);
        if (!msg) {
-               pr_err("failed to request mdlog flush to mds%d (%s) seq %lld\n",
-                      s->s_mds, ceph_session_state_name(s->s_state), s->s_seq);
+               pr_err_client(cl, "failed to request mdlog flush to mds%d (%s) seq %lld\n",
+                             s->s_mds, ceph_session_state_name(s->s_state), s->s_seq);
        } else {
                ceph_con_send(&s->s_con, msg);
        }
   */
  void ceph_mdsc_pre_umount(struct ceph_mds_client *mdsc)
  {
-       dout("pre_umount\n");
+       doutc(mdsc->fsc->client, "begin\n");
        mdsc->stopping = CEPH_MDSC_STOPPING_BEGIN;
  
        ceph_mdsc_iterate_sessions(mdsc, send_flush_mdlog, true);
        ceph_msgr_flush();
  
        ceph_cleanup_quotarealms_inodes(mdsc);
+       doutc(mdsc->fsc->client, "done\n");
  }
  
  /*
  static void flush_mdlog_and_wait_mdsc_unsafe_requests(struct ceph_mds_client *mdsc,
                                                 u64 want_tid)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_request *req = NULL, *nextreq;
        struct ceph_mds_session *last_session = NULL;
        struct rb_node *n;
  
        mutex_lock(&mdsc->mutex);
-       dout("%s want %lld\n", __func__, want_tid);
+       doutc(cl, "want %lld\n", want_tid);
  restart:
        req = __get_oldest_req(mdsc);
        while (req && req->r_tid <= want_tid) {
                        } else {
                                ceph_put_mds_session(s);
                        }
-                       dout("%s wait on %llu (want %llu)\n", __func__,
-                            req->r_tid, want_tid);
+                       doutc(cl, "wait on %llu (want %llu)\n",
+                             req->r_tid, want_tid);
                        wait_for_completion(&req->r_safe_completion);
  
                        mutex_lock(&mdsc->mutex);
        }
        mutex_unlock(&mdsc->mutex);
        ceph_put_mds_session(last_session);
-       dout("%s done\n", __func__);
+       doutc(cl, "done\n");
  }
  
  void ceph_mdsc_sync(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        u64 want_tid, want_flush;
  
        if (READ_ONCE(mdsc->fsc->mount_state) >= CEPH_MOUNT_SHUTDOWN)
                return;
  
-       dout("sync\n");
+       doutc(cl, "sync\n");
        mutex_lock(&mdsc->mutex);
        want_tid = mdsc->last_tid;
        mutex_unlock(&mdsc->mutex);
        }
        spin_unlock(&mdsc->cap_dirty_lock);
  
-       dout("sync want tid %lld flush_seq %lld\n",
-            want_tid, want_flush);
+       doutc(cl, "sync want tid %lld flush_seq %lld\n", want_tid, want_flush);
  
        flush_mdlog_and_wait_mdsc_unsafe_requests(mdsc, want_tid);
        wait_caps_flush(mdsc, want_flush);
@@@ -5440,11 -5574,12 +5578,12 @@@ static bool done_closing_sessions(struc
  void ceph_mdsc_close_sessions(struct ceph_mds_client *mdsc)
  {
        struct ceph_options *opts = mdsc->fsc->client->options;
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_session *session;
        int i;
        int skipped = 0;
  
-       dout("close_sessions\n");
+       doutc(cl, "begin\n");
  
        /* close sessions */
        mutex_lock(&mdsc->mutex);
        }
        mutex_unlock(&mdsc->mutex);
  
-       dout("waiting for sessions to close\n");
+       doutc(cl, "waiting for sessions to close\n");
        wait_event_timeout(mdsc->session_close_wq,
                           done_closing_sessions(mdsc, skipped),
                           ceph_timeout_jiffies(opts->mount_timeout));
        cancel_work_sync(&mdsc->cap_reclaim_work);
        cancel_delayed_work_sync(&mdsc->delayed_work); /* cancel timer */
  
-       dout("stopped\n");
+       doutc(cl, "done\n");
  }
  
  void ceph_mdsc_force_umount(struct ceph_mds_client *mdsc)
        struct ceph_mds_session *session;
        int mds;
  
-       dout("force umount\n");
+       doutc(mdsc->fsc->client, "force umount\n");
  
        mutex_lock(&mdsc->mutex);
        for (mds = 0; mds < mdsc->max_sessions; mds++) {
  
  static void ceph_mdsc_stop(struct ceph_mds_client *mdsc)
  {
-       dout("stop\n");
+       doutc(mdsc->fsc->client, "stop\n");
        /*
         * Make sure the delayed work stopped before releasing
         * the resources.
  void ceph_mdsc_destroy(struct ceph_fs_client *fsc)
  {
        struct ceph_mds_client *mdsc = fsc->mdsc;
-       dout("mdsc_destroy %p\n", mdsc);
+       doutc(fsc->client, "%p\n", mdsc);
  
        if (!mdsc)
                return;
  
        fsc->mdsc = NULL;
        kfree(mdsc);
-       dout("mdsc_destroy %p done\n", mdsc);
+       doutc(fsc->client, "%p done\n", mdsc);
  }
  
  void ceph_mdsc_handle_fsmap(struct ceph_mds_client *mdsc, struct ceph_msg *msg)
  {
        struct ceph_fs_client *fsc = mdsc->fsc;
+       struct ceph_client *cl = fsc->client;
        const char *mds_namespace = fsc->mount_options->mds_namespace;
        void *p = msg->front.iov_base;
        void *end = p + msg->front.iov_len;
        ceph_decode_need(&p, end, sizeof(u32), bad);
        epoch = ceph_decode_32(&p);
  
-       dout("handle_fsmap epoch %u\n", epoch);
+       doutc(cl, "epoch %u\n", epoch);
  
        /* struct_v, struct_cv, map_len, epoch, legacy_client_fscid */
        ceph_decode_skip_n(&p, end, 2 + sizeof(u32) * 3, bad);
        return;
  
  bad:
-       pr_err("error decoding fsmap %d. Shutting down mount.\n", err);
+       pr_err_client(cl, "error decoding fsmap %d. Shutting down mount.\n",
+                     err);
        ceph_umount_begin(mdsc->fsc->sb);
        ceph_msg_dump(msg);
  err_out:
   */
  void ceph_mdsc_handle_mdsmap(struct ceph_mds_client *mdsc, struct ceph_msg *msg)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        u32 epoch;
        u32 maplen;
        void *p = msg->front.iov_base;
                return;
        epoch = ceph_decode_32(&p);
        maplen = ceph_decode_32(&p);
-       dout("handle_map epoch %u len %d\n", epoch, (int)maplen);
+       doutc(cl, "epoch %u len %d\n", epoch, (int)maplen);
  
        /* do we need it? */
        mutex_lock(&mdsc->mutex);
        if (mdsc->mdsmap && epoch <= mdsc->mdsmap->m_epoch) {
-               dout("handle_map epoch %u <= our %u\n",
-                    epoch, mdsc->mdsmap->m_epoch);
+               doutc(cl, "epoch %u <= our %u\n", epoch, mdsc->mdsmap->m_epoch);
                mutex_unlock(&mdsc->mutex);
                return;
        }
  
-       newmap = ceph_mdsmap_decode(&p, end, ceph_msgr2(mdsc->fsc->client));
+       newmap = ceph_mdsmap_decode(mdsc, &p, end, ceph_msgr2(mdsc->fsc->client));
        if (IS_ERR(newmap)) {
                err = PTR_ERR(newmap);
                goto bad_unlock;
  bad_unlock:
        mutex_unlock(&mdsc->mutex);
  bad:
-       pr_err("error decoding mdsmap %d. Shutting down mount.\n", err);
+       pr_err_client(cl, "error decoding mdsmap %d. Shutting down mount.\n",
+                     err);
        ceph_umount_begin(mdsc->fsc->sb);
        ceph_msg_dump(msg);
        return;
@@@ -5726,7 -5864,8 +5868,8 @@@ static void mds_peer_reset(struct ceph_
        struct ceph_mds_session *s = con->private;
        struct ceph_mds_client *mdsc = s->s_mdsc;
  
-       pr_warn("mds%d closed our session\n", s->s_mds);
+       pr_warn_client(mdsc->fsc->client, "mds%d closed our session\n",
+                      s->s_mds);
        if (READ_ONCE(mdsc->fsc->mount_state) != CEPH_MOUNT_FENCE_IO)
                send_mds_reconnect(mdsc, s);
  }
@@@ -5735,6 -5874,7 +5878,7 @@@ static void mds_dispatch(struct ceph_co
  {
        struct ceph_mds_session *s = con->private;
        struct ceph_mds_client *mdsc = s->s_mdsc;
+       struct ceph_client *cl = mdsc->fsc->client;
        int type = le16_to_cpu(msg->hdr.type);
  
        mutex_lock(&mdsc->mutex);
                break;
  
        default:
-               pr_err("received unknown message type %d %s\n", type,
-                      ceph_msg_type_name(type));
+               pr_err_client(cl, "received unknown message type %d %s\n",
+                             type, ceph_msg_type_name(type));
        }
  out:
        ceph_msg_put(msg);
diff --combined fs/ceph/snap.c
index 6732e1ea97d99126f2f18c42cddb82f21ff07272,73c526954749198444592167fa24cf89f9d3743d..c65f2b202b2b3e8bf9055f046a5d9a848c13b6b0
@@@ -138,7 -138,7 +138,7 @@@ static struct ceph_snap_realm *ceph_cre
        __insert_snap_realm(&mdsc->snap_realms, realm);
        mdsc->num_snap_realms++;
  
-       dout("%s %llx %p\n", __func__, realm->ino, realm);
+       doutc(mdsc->fsc->client, "%llx %p\n", realm->ino, realm);
        return realm;
  }
  
  static struct ceph_snap_realm *__lookup_snap_realm(struct ceph_mds_client *mdsc,
                                                   u64 ino)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct rb_node *n = mdsc->snap_realms.rb_node;
        struct ceph_snap_realm *r;
  
                else if (ino > r->ino)
                        n = n->rb_right;
                else {
-                       dout("%s %llx %p\n", __func__, r->ino, r);
+                       doutc(cl, "%llx %p\n", r->ino, r);
                        return r;
                }
        }
@@@ -188,9 -189,10 +189,10 @@@ static void __put_snap_realm(struct cep
  static void __destroy_snap_realm(struct ceph_mds_client *mdsc,
                                 struct ceph_snap_realm *realm)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        lockdep_assert_held_write(&mdsc->snap_rwsem);
  
-       dout("%s %p %llx\n", __func__, realm, realm->ino);
+       doutc(cl, "%p %llx\n", realm, realm->ino);
  
        rb_erase(&realm->node, &mdsc->snap_realms);
        mdsc->num_snap_realms--;
@@@ -290,6 -292,7 +292,7 @@@ static int adjust_snap_realm_parent(str
                                    struct ceph_snap_realm *realm,
                                    u64 parentino)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_snap_realm *parent;
  
        lockdep_assert_held_write(&mdsc->snap_rwsem);
                if (IS_ERR(parent))
                        return PTR_ERR(parent);
        }
-       dout("%s %llx %p: %llx %p -> %llx %p\n", __func__, realm->ino,
-            realm, realm->parent_ino, realm->parent, parentino, parent);
+       doutc(cl, "%llx %p: %llx %p -> %llx %p\n", realm->ino, realm,
+             realm->parent_ino, realm->parent, parentino, parent);
        if (realm->parent) {
                list_del_init(&realm->child_item);
                ceph_put_snap_realm(mdsc, realm->parent);
@@@ -329,10 -332,12 +332,12 @@@ static int cmpu64_rev(const void *a, co
  /*
   * build the snap context for a given realm.
   */
- static int build_snap_context(struct ceph_snap_realm *realm,
+ static int build_snap_context(struct ceph_mds_client *mdsc,
+                             struct ceph_snap_realm *realm,
                              struct list_head *realm_queue,
                              struct list_head *dirty_realms)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_snap_realm *parent = realm->parent;
        struct ceph_snap_context *snapc;
        int err = 0;
            realm->cached_context->seq == realm->seq &&
            (!parent ||
             realm->cached_context->seq >= parent->cached_context->seq)) {
-               dout("%s %llx %p: %p seq %lld (%u snaps) (unchanged)\n",
-                    __func__, realm->ino, realm, realm->cached_context,
-                    realm->cached_context->seq,
-                    (unsigned int)realm->cached_context->num_snaps);
+               doutc(cl, "%llx %p: %p seq %lld (%u snaps) (unchanged)\n",
+                     realm->ino, realm, realm->cached_context,
+                     realm->cached_context->seq,
+                     (unsigned int)realm->cached_context->num_snaps);
                return 0;
        }
  
  
        sort(snapc->snaps, num, sizeof(u64), cmpu64_rev, NULL);
        snapc->num_snaps = num;
-       dout("%s %llx %p: %p seq %lld (%u snaps)\n", __func__, realm->ino,
-            realm, snapc, snapc->seq, (unsigned int) snapc->num_snaps);
+       doutc(cl, "%llx %p: %p seq %lld (%u snaps)\n", realm->ino, realm,
+             snapc, snapc->seq, (unsigned int) snapc->num_snaps);
  
        ceph_put_snap_context(realm->cached_context);
        realm->cached_context = snapc;
@@@ -418,16 -423,18 +423,18 @@@ fail
                ceph_put_snap_context(realm->cached_context);
                realm->cached_context = NULL;
        }
-       pr_err("%s %llx %p fail %d\n", __func__, realm->ino, realm, err);
+       pr_err_client(cl, "%llx %p fail %d\n", realm->ino, realm, err);
        return err;
  }
  
  /*
   * rebuild snap context for the given realm and all of its children.
   */
- static void rebuild_snap_realms(struct ceph_snap_realm *realm,
+ static void rebuild_snap_realms(struct ceph_mds_client *mdsc,
+                               struct ceph_snap_realm *realm,
                                struct list_head *dirty_realms)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        LIST_HEAD(realm_queue);
        int last = 0;
        bool skip = false;
                        continue;
                }
  
-               last = build_snap_context(_realm, &realm_queue, dirty_realms);
-               dout("%s %llx %p, %s\n", __func__, _realm->ino, _realm,
-                    last > 0 ? "is deferred" : !last ? "succeeded" : "failed");
+               last = build_snap_context(mdsc, _realm, &realm_queue,
+                                         dirty_realms);
+               doutc(cl, "%llx %p, %s\n", realm->ino, realm,
+                     last > 0 ? "is deferred" : !last ? "succeeded" : "failed");
  
                /* is any child in the list ? */
                list_for_each_entry(child, &_realm->children, child_item) {
@@@ -523,6 -531,7 +531,7 @@@ static void ceph_queue_cap_snap(struct 
                                struct ceph_cap_snap **pcapsnap)
  {
        struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_snap_context *old_snapc, *new_snapc;
        struct ceph_cap_snap *capsnap = *pcapsnap;
        struct ceph_buffer *old_blob = NULL;
                   as no new writes are allowed to start when pending, so any
                   writes in progress now were started before the previous
                   cap_snap.  lucky us. */
-               dout("%s %p %llx.%llx already pending\n",
-                    __func__, inode, ceph_vinop(inode));
+               doutc(cl, "%p %llx.%llx already pending\n", inode,
+                     ceph_vinop(inode));
                goto update_snapc;
        }
        if (ci->i_wrbuffer_ref_head == 0 &&
            !(dirty & (CEPH_CAP_ANY_EXCL|CEPH_CAP_FILE_WR))) {
-               dout("%s %p %llx.%llx nothing dirty|writing\n",
-                    __func__, inode, ceph_vinop(inode));
+               doutc(cl, "%p %llx.%llx nothing dirty|writing\n", inode,
+                     ceph_vinop(inode));
                goto update_snapc;
        }
  
        } else {
                if (!(used & CEPH_CAP_FILE_WR) &&
                    ci->i_wrbuffer_ref_head == 0) {
-                       dout("%s %p %llx.%llx no new_snap|dirty_page|writing\n",
-                            __func__, inode, ceph_vinop(inode));
+                       doutc(cl, "%p %llx.%llx no new_snap|dirty_page|writing\n",
+                             inode, ceph_vinop(inode));
                        goto update_snapc;
                }
        }
  
-       dout("%s %p %llx.%llx cap_snap %p queuing under %p %s %s\n",
-            __func__, inode, ceph_vinop(inode), capsnap, old_snapc,
-            ceph_cap_string(dirty), capsnap->need_flush ? "" : "no_flush");
+       doutc(cl, "%p %llx.%llx cap_snap %p queuing under %p %s %s\n",
+             inode, ceph_vinop(inode), capsnap, old_snapc,
+             ceph_cap_string(dirty), capsnap->need_flush ? "" : "no_flush");
        ihold(inode);
  
        capsnap->follows = old_snapc->seq;
        list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
  
        if (used & CEPH_CAP_FILE_WR) {
-               dout("%s %p %llx.%llx cap_snap %p snapc %p seq %llu used WR,"
-                    " now pending\n", __func__, inode, ceph_vinop(inode),
-                    capsnap, old_snapc, old_snapc->seq);
+               doutc(cl, "%p %llx.%llx cap_snap %p snapc %p seq %llu used WR,"
+                     " now pending\n", inode, ceph_vinop(inode), capsnap,
+                     old_snapc, old_snapc->seq);
                capsnap->writing = 1;
        } else {
                /* note mtime, size NOW. */
@@@ -634,7 -643,7 +643,7 @@@ update_snapc
                ci->i_head_snapc = NULL;
        } else {
                ci->i_head_snapc = ceph_get_snap_context(new_snapc);
-               dout(" new snapc is %p\n", new_snapc);
+               doutc(cl, " new snapc is %p\n", new_snapc);
        }
        spin_unlock(&ci->i_ceph_lock);
  
@@@ -655,11 -664,12 +664,12 @@@ int __ceph_finish_cap_snap(struct ceph_
  {
        struct inode *inode = &ci->netfs.inode;
        struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+       struct ceph_client *cl = mdsc->fsc->client;
  
        BUG_ON(capsnap->writing);
        capsnap->size = i_size_read(inode);
 -      capsnap->mtime = inode->i_mtime;
 -      capsnap->atime = inode->i_atime;
 +      capsnap->mtime = inode_get_mtime(inode);
 +      capsnap->atime = inode_get_atime(inode);
        capsnap->ctime = inode_get_ctime(inode);
        capsnap->btime = ci->i_btime;
        capsnap->change_attr = inode_peek_iversion_raw(inode);
        capsnap->truncate_size = ci->i_truncate_size;
        capsnap->truncate_seq = ci->i_truncate_seq;
        if (capsnap->dirty_pages) {
-               dout("%s %p %llx.%llx cap_snap %p snapc %p %llu %s s=%llu "
-                    "still has %d dirty pages\n", __func__, inode,
-                    ceph_vinop(inode), capsnap, capsnap->context,
-                    capsnap->context->seq, ceph_cap_string(capsnap->dirty),
-                    capsnap->size, capsnap->dirty_pages);
+               doutc(cl, "%p %llx.%llx cap_snap %p snapc %p %llu %s "
+                     "s=%llu still has %d dirty pages\n", inode,
+                     ceph_vinop(inode), capsnap, capsnap->context,
+                     capsnap->context->seq,
+                     ceph_cap_string(capsnap->dirty),
+                     capsnap->size, capsnap->dirty_pages);
                return 0;
        }
  
         * And trigger to flush the buffer immediately.
         */
        if (ci->i_wrbuffer_ref) {
-               dout("%s %p %llx.%llx cap_snap %p snapc %p %llu %s s=%llu "
-                    "used WRBUFFER, delaying\n", __func__, inode,
-                    ceph_vinop(inode), capsnap, capsnap->context,
-                    capsnap->context->seq, ceph_cap_string(capsnap->dirty),
-                    capsnap->size);
+               doutc(cl, "%p %llx.%llx cap_snap %p snapc %p %llu %s "
+                     "s=%llu used WRBUFFER, delaying\n", inode,
+                     ceph_vinop(inode), capsnap, capsnap->context,
+                     capsnap->context->seq, ceph_cap_string(capsnap->dirty),
+                     capsnap->size);
                ceph_queue_writeback(inode);
                return 0;
        }
  
        ci->i_ceph_flags |= CEPH_I_FLUSH_SNAPS;
-       dout("%s %p %llx.%llx cap_snap %p snapc %p %llu %s s=%llu\n",
-            __func__, inode, ceph_vinop(inode), capsnap, capsnap->context,
-            capsnap->context->seq, ceph_cap_string(capsnap->dirty),
-            capsnap->size);
+       doutc(cl, "%p %llx.%llx cap_snap %p snapc %p %llu %s s=%llu\n",
+             inode, ceph_vinop(inode), capsnap, capsnap->context,
+             capsnap->context->seq, ceph_cap_string(capsnap->dirty),
+             capsnap->size);
  
        spin_lock(&mdsc->snap_flush_lock);
        if (list_empty(&ci->i_snap_flush_item)) {
   * Queue cap_snaps for snap writeback for this realm and its children.
   * Called under snap_rwsem, so realm topology won't change.
   */
- static void queue_realm_cap_snaps(struct ceph_snap_realm *realm)
+ static void queue_realm_cap_snaps(struct ceph_mds_client *mdsc,
+                                 struct ceph_snap_realm *realm)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_inode_info *ci;
        struct inode *lastinode = NULL;
        struct ceph_cap_snap *capsnap = NULL;
  
-       dout("%s %p %llx inode\n", __func__, realm, realm->ino);
+       doutc(cl, "%p %llx inode\n", realm, realm->ino);
  
        spin_lock(&realm->inodes_with_caps_lock);
        list_for_each_entry(ci, &realm->inodes_with_caps, i_snap_realm_item) {
                if (!capsnap) {
                        capsnap = kmem_cache_zalloc(ceph_cap_snap_cachep, GFP_NOFS);
                        if (!capsnap) {
-                               pr_err("ENOMEM allocating ceph_cap_snap on %p\n",
-                                      inode);
+                               pr_err_client(cl,
+                                       "ENOMEM allocating ceph_cap_snap on %p\n",
+                                       inode);
                                return;
                        }
                }
  
        if (capsnap)
                kmem_cache_free(ceph_cap_snap_cachep, capsnap);
-       dout("%s %p %llx done\n", __func__, realm, realm->ino);
+       doutc(cl, "%p %llx done\n", realm, realm->ino);
  }
  
  /*
@@@ -766,6 -780,7 +780,7 @@@ int ceph_update_snap_trace(struct ceph_
                           void *p, void *e, bool deletion,
                           struct ceph_snap_realm **realm_ret)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_mds_snap_realm *ri;    /* encoded */
        __le64 *snaps;                     /* encoded */
        __le64 *prior_parent_snaps;        /* encoded */
  
        lockdep_assert_held_write(&mdsc->snap_rwsem);
  
-       dout("%s deletion=%d\n", __func__, deletion);
+       doutc(cl, "deletion=%d\n", deletion);
  more:
        realm = NULL;
        rebuild_snapcs = 0;
        rebuild_snapcs += err;
  
        if (le64_to_cpu(ri->seq) > realm->seq) {
-               dout("%s updating %llx %p %lld -> %lld\n", __func__,
-                    realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
+               doutc(cl, "updating %llx %p %lld -> %lld\n", realm->ino,
+                     realm, realm->seq, le64_to_cpu(ri->seq));
                /* update realm parameters, snap lists */
                realm->seq = le64_to_cpu(ri->seq);
                realm->created = le64_to_cpu(ri->created);
  
                rebuild_snapcs = 1;
        } else if (!realm->cached_context) {
-               dout("%s %llx %p seq %lld new\n", __func__,
-                    realm->ino, realm, realm->seq);
+               doutc(cl, "%llx %p seq %lld new\n", realm->ino, realm,
+                     realm->seq);
                rebuild_snapcs = 1;
        } else {
-               dout("%s %llx %p seq %lld unchanged\n", __func__,
-                    realm->ino, realm, realm->seq);
+               doutc(cl, "%llx %p seq %lld unchanged\n", realm->ino, realm,
+                     realm->seq);
        }
  
-       dout("done with %llx %p, rebuild_snapcs=%d, %p %p\n", realm->ino,
-            realm, rebuild_snapcs, p, e);
+       doutc(cl, "done with %llx %p, rebuild_snapcs=%d, %p %p\n", realm->ino,
+             realm, rebuild_snapcs, p, e);
  
        /*
         * this will always track the uppest parent realm from which
  
        /* rebuild_snapcs when we reach the _end_ (root) of the trace */
        if (realm_to_rebuild && p >= e)
-               rebuild_snap_realms(realm_to_rebuild, &dirty_realms);
+               rebuild_snap_realms(mdsc, realm_to_rebuild, &dirty_realms);
  
        if (!first_realm)
                first_realm = realm;
                realm = list_first_entry(&dirty_realms, struct ceph_snap_realm,
                                         dirty_item);
                list_del_init(&realm->dirty_item);
-               queue_realm_cap_snaps(realm);
+               queue_realm_cap_snaps(mdsc, realm);
        }
  
        if (realm_ret)
@@@ -891,7 -906,7 +906,7 @@@ fail
                ceph_put_snap_realm(mdsc, realm);
        if (first_realm)
                ceph_put_snap_realm(mdsc, first_realm);
-       pr_err("%s error %d\n", __func__, err);
+       pr_err_client(cl, "error %d\n", err);
  
        /*
         * When receiving a corrupted snap trace we don't know what
        WRITE_ONCE(mdsc->fsc->mount_state, CEPH_MOUNT_FENCE_IO);
        ret = ceph_monc_blocklist_add(&client->monc, &client->msgr.inst.addr);
        if (ret)
-               pr_err("%s failed to blocklist %s: %d\n", __func__,
-                      ceph_pr_addr(&client->msgr.inst.addr), ret);
+               pr_err_client(cl, "failed to blocklist %s: %d\n",
+                             ceph_pr_addr(&client->msgr.inst.addr), ret);
  
-       WARN(1, "%s: %s%sdo remount to continue%s",
-            __func__, ret ? "" : ceph_pr_addr(&client->msgr.inst.addr),
+       WARN(1, "[client.%lld] %s %s%sdo remount to continue%s",
+            client->monc.auth->global_id, __func__,
+            ret ? "" : ceph_pr_addr(&client->msgr.inst.addr),
             ret ? "" : " was blocklisted, ",
             err == -EIO ? " after corrupted snaptrace is fixed" : "");
  
   */
  static void flush_snaps(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_inode_info *ci;
        struct inode *inode;
        struct ceph_mds_session *session = NULL;
  
-       dout("%s\n", __func__);
+       doutc(cl, "begin\n");
        spin_lock(&mdsc->snap_flush_lock);
        while (!list_empty(&mdsc->snap_flush_list)) {
                ci = list_first_entry(&mdsc->snap_flush_list,
        spin_unlock(&mdsc->snap_flush_lock);
  
        ceph_put_mds_session(session);
-       dout("%s done\n", __func__);
+       doutc(cl, "done\n");
  }
  
  /**
  void ceph_change_snap_realm(struct inode *inode, struct ceph_snap_realm *realm)
  {
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_inode_to_fs_client(inode)->mdsc;
        struct ceph_snap_realm *oldrealm = ci->i_snap_realm;
  
        lockdep_assert_held(&ci->i_ceph_lock);
@@@ -1000,6 -1017,7 +1017,7 @@@ void ceph_handle_snap(struct ceph_mds_c
                      struct ceph_mds_session *session,
                      struct ceph_msg *msg)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct super_block *sb = mdsc->fsc->sb;
        int mds = session->s_mds;
        u64 split;
        trace_len = le32_to_cpu(h->trace_len);
        p += sizeof(*h);
  
-       dout("%s from mds%d op %s split %llx tracelen %d\n", __func__,
-            mds, ceph_snap_op_name(op), split, trace_len);
+       doutc(cl, "from mds%d op %s split %llx tracelen %d\n", mds,
+             ceph_snap_op_name(op), split, trace_len);
  
        down_write(&mdsc->snap_rwsem);
        locked_rwsem = 1;
                                goto out;
                }
  
-               dout("splitting snap_realm %llx %p\n", realm->ino, realm);
+               doutc(cl, "splitting snap_realm %llx %p\n", realm->ino, realm);
                for (i = 0; i < num_split_inos; i++) {
                        struct ceph_vino vino = {
                                .ino = le64_to_cpu(split_inos[i]),
                         */
                        if (ci->i_snap_realm->created >
                            le64_to_cpu(ri->created)) {
-                               dout(" leaving %p %llx.%llx in newer realm %llx %p\n",
-                                    inode, ceph_vinop(inode), ci->i_snap_realm->ino,
-                                    ci->i_snap_realm);
+                               doutc(cl, " leaving %p %llx.%llx in newer realm %llx %p\n",
+                                     inode, ceph_vinop(inode), ci->i_snap_realm->ino,
+                                     ci->i_snap_realm);
                                goto skip_inode;
                        }
-                       dout(" will move %p %llx.%llx to split realm %llx %p\n",
-                            inode, ceph_vinop(inode), realm->ino, realm);
+                       doutc(cl, " will move %p %llx.%llx to split realm %llx %p\n",
+                             inode, ceph_vinop(inode), realm->ino, realm);
  
                        ceph_get_snap_realm(mdsc, realm);
                        ceph_change_snap_realm(inode, realm);
@@@ -1154,7 -1172,7 +1172,7 @@@ skip_inode
        return;
  
  bad:
-       pr_err("%s corrupt snap message from mds%d\n", __func__, mds);
+       pr_err_client(cl, "corrupt snap message from mds%d\n", mds);
        ceph_msg_dump(msg);
  out:
        if (locked_rwsem)
  struct ceph_snapid_map* ceph_get_snapid_map(struct ceph_mds_client *mdsc,
                                            u64 snap)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_snapid_map *sm, *exist;
        struct rb_node **p, *parent;
        int ret;
        }
        spin_unlock(&mdsc->snapid_map_lock);
        if (exist) {
-               dout("%s found snapid map %llx -> %x\n", __func__,
-                    exist->snap, exist->dev);
+               doutc(cl, "found snapid map %llx -> %x\n", exist->snap,
+                     exist->dev);
                return exist;
        }
  
        if (exist) {
                free_anon_bdev(sm->dev);
                kfree(sm);
-               dout("%s found snapid map %llx -> %x\n", __func__,
-                    exist->snap, exist->dev);
+               doutc(cl, "found snapid map %llx -> %x\n", exist->snap,
+                     exist->dev);
                return exist;
        }
  
-       dout("%s create snapid map %llx -> %x\n", __func__,
-            sm->snap, sm->dev);
+       doutc(cl, "create snapid map %llx -> %x\n", sm->snap, sm->dev);
        return sm;
  }
  
@@@ -1268,6 -1286,7 +1286,7 @@@ void ceph_put_snapid_map(struct ceph_md
  
  void ceph_trim_snapid_map(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_snapid_map *sm;
        unsigned long now;
        LIST_HEAD(to_free);
        while (!list_empty(&to_free)) {
                sm = list_first_entry(&to_free, struct ceph_snapid_map, lru);
                list_del(&sm->lru);
-               dout("trim snapid map %llx -> %x\n", sm->snap, sm->dev);
+               doutc(cl, "trim snapid map %llx -> %x\n", sm->snap, sm->dev);
                free_anon_bdev(sm->dev);
                kfree(sm);
        }
  
  void ceph_cleanup_snapid_map(struct ceph_mds_client *mdsc)
  {
+       struct ceph_client *cl = mdsc->fsc->client;
        struct ceph_snapid_map *sm;
        struct rb_node *p;
        LIST_HEAD(to_free);
                list_del(&sm->lru);
                free_anon_bdev(sm->dev);
                if (WARN_ON_ONCE(atomic_read(&sm->ref))) {
-                       pr_err("snapid map %llx -> %x still in use\n",
-                              sm->snap, sm->dev);
+                       pr_err_client(cl, "snapid map %llx -> %x still in use\n",
+                                     sm->snap, sm->dev);
                }
                kfree(sm);
        }
diff --combined fs/ceph/super.h
index 98844fc8a2f7af21c53923291bf54fc55b96fa00,504c6f9a5beacfda3935cc42ed00c008982f67e8..fe0f64a0acb27058014b188bec906e07310fad1f
@@@ -488,13 -488,13 +488,13 @@@ ceph_inode(const struct inode *inode
  }
  
  static inline struct ceph_fs_client *
- ceph_inode_to_client(const struct inode *inode)
+ ceph_inode_to_fs_client(const struct inode *inode)
  {
        return (struct ceph_fs_client *)inode->i_sb->s_fs_info;
  }
  
  static inline struct ceph_fs_client *
- ceph_sb_to_client(const struct super_block *sb)
+ ceph_sb_to_fs_client(const struct super_block *sb)
  {
        return (struct ceph_fs_client *)sb->s_fs_info;
  }
  static inline struct ceph_mds_client *
  ceph_sb_to_mdsc(const struct super_block *sb)
  {
-       return (struct ceph_mds_client *)ceph_sb_to_client(sb)->mdsc;
+       return (struct ceph_mds_client *)ceph_sb_to_fs_client(sb)->mdsc;
+ }
+ static inline struct ceph_client *
+ ceph_inode_to_client(const struct inode *inode)
+ {
+       return (struct ceph_client *)ceph_inode_to_fs_client(inode)->client;
  }
  
  static inline struct ceph_vino
@@@ -558,7 -564,7 +564,7 @@@ static inline u64 ceph_snap(struct inod
   */
  static inline u64 ceph_present_ino(struct super_block *sb, u64 ino)
  {
-       if (unlikely(ceph_test_mount_opt(ceph_sb_to_client(sb), INO32)))
+       if (unlikely(ceph_test_mount_opt(ceph_sb_to_fs_client(sb), INO32)))
                return ceph_ino_to_ino32(ino);
        return ino;
  }
@@@ -1094,8 -1100,8 +1100,8 @@@ struct ceph_iattr 
        struct ceph_fscrypt_auth        *fscrypt_auth;
  };
  
- extern int __ceph_setattr(struct inode *inode, struct iattr *attr,
-                         struct ceph_iattr *cia);
+ extern int __ceph_setattr(struct mnt_idmap *idmap, struct inode *inode,
+                         struct iattr *attr, struct ceph_iattr *cia);
  extern int ceph_setattr(struct mnt_idmap *idmap,
                        struct dentry *dentry, struct iattr *attr);
  extern int ceph_getattr(struct mnt_idmap *idmap,
@@@ -1106,7 -1112,7 +1112,7 @@@ void ceph_inode_shutdown(struct inode *
  static inline bool ceph_inode_is_shutdown(struct inode *inode)
  {
        unsigned long flags = READ_ONCE(ceph_inode(inode)->i_ceph_flags);
-       struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+       struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
        int state = READ_ONCE(fsc->mount_state);
  
        return (flags & CEPH_I_SHUTDOWN) || state >= CEPH_MOUNT_SHUTDOWN;
@@@ -1119,7 -1125,7 +1125,7 @@@ ssize_t __ceph_getxattr(struct inode *
  extern ssize_t ceph_listxattr(struct dentry *, char *, size_t);
  extern struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci);
  extern void __ceph_destroy_xattrs(struct ceph_inode_info *ci);
 -extern const struct xattr_handler *ceph_xattr_handlers[];
 +extern const struct xattr_handler * const ceph_xattr_handlers[];
  
  struct ceph_acl_sec_ctx {
  #ifdef CONFIG_CEPH_FS_POSIX_ACL
@@@ -1223,7 -1229,8 +1229,8 @@@ extern void ceph_add_cap(struct inode *
                         unsigned cap, unsigned seq, u64 realmino, int flags,
                         struct ceph_cap **new_cap);
  extern void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release);
- extern void ceph_remove_cap(struct ceph_cap *cap, bool queue_release);
+ extern void ceph_remove_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
+                           bool queue_release);
  extern void __ceph_remove_caps(struct ceph_inode_info *ci);
  extern void ceph_put_cap(struct ceph_mds_client *mdsc,
                         struct ceph_cap *cap);
diff --combined fs/ceph/xattr.c
index 097ce7f74073d4f4ce01b6e7187bce4121a8f050,04d031467193d5110afbdfdfbfdb567d69ece0b6..e066a556eccbfe370afdbf6f4aade3e26df80bb9
@@@ -57,7 -57,8 +57,8 @@@ static bool ceph_vxattrcb_layout_exists
  static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
                                    size_t size)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
+       struct ceph_client *cl = fsc->client;
        struct ceph_osd_client *osdc = &fsc->client->osdc;
        struct ceph_string *pool_ns;
        s64 pool = ci->i_layout.pool_id;
@@@ -69,7 -70,7 +70,7 @@@
  
        pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);
  
-       dout("ceph_vxattrcb_layout %p\n", &ci->netfs.inode);
+       doutc(cl, "%p\n", &ci->netfs.inode);
        down_read(&osdc->lock);
        pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
        if (pool_name) {
@@@ -161,7 -162,7 +162,7 @@@ static ssize_t ceph_vxattrcb_layout_poo
                                         char *val, size_t size)
  {
        ssize_t ret;
-       struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
        struct ceph_osd_client *osdc = &fsc->client->osdc;
        s64 pool = ci->i_layout.pool_id;
        const char *pool_name;
@@@ -313,7 -314,7 +314,7 @@@ static ssize_t ceph_vxattrcb_snap_btime
  static ssize_t ceph_vxattrcb_cluster_fsid(struct ceph_inode_info *ci,
                                          char *val, size_t size)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
  
        return ceph_fmt_xattr(val, size, "%pU", &fsc->client->fsid);
  }
  static ssize_t ceph_vxattrcb_client_id(struct ceph_inode_info *ci,
                                       char *val, size_t size)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
  
        return ceph_fmt_xattr(val, size, "client%lld",
                              ceph_client_gid(fsc->client));
@@@ -570,6 -571,8 +571,8 @@@ static int __set_xattr(struct ceph_inod
                           int flags, int update_xattr,
                           struct ceph_inode_xattr **newxattr)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct rb_node **p;
        struct rb_node *parent = NULL;
        struct ceph_inode_xattr *xattr = NULL;
                xattr->should_free_name = update_xattr;
  
                ci->i_xattrs.count++;
-               dout("%s count=%d\n", __func__, ci->i_xattrs.count);
+               doutc(cl, "count=%d\n", ci->i_xattrs.count);
        } else {
                kfree(*newxattr);
                *newxattr = NULL;
        if (new) {
                rb_link_node(&xattr->node, parent, p);
                rb_insert_color(&xattr->node, &ci->i_xattrs.index);
-               dout("%s p=%p\n", __func__, p);
+               doutc(cl, "p=%p\n", p);
        }
  
-       dout("%s added %llx.%llx xattr %p %.*s=%.*s%s\n", __func__,
-            ceph_vinop(&ci->netfs.inode), xattr, name_len, name,
-            min(val_len, MAX_XATTR_VAL_PRINT_LEN), val,
-            val_len > MAX_XATTR_VAL_PRINT_LEN ? "..." : "");
+       doutc(cl, "added %p %llx.%llx xattr %p %.*s=%.*s%s\n", inode,
+             ceph_vinop(inode), xattr, name_len, name, min(val_len,
+             MAX_XATTR_VAL_PRINT_LEN), val,
+             val_len > MAX_XATTR_VAL_PRINT_LEN ? "..." : "");
  
        return 0;
  }
  static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,
                           const char *name)
  {
+       struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
        struct rb_node **p;
        struct rb_node *parent = NULL;
        struct ceph_inode_xattr *xattr = NULL;
                else {
                        int len = min(xattr->val_len, MAX_XATTR_VAL_PRINT_LEN);
  
-                       dout("%s %s: found %.*s%s\n", __func__, name, len,
-                            xattr->val, xattr->val_len > len ? "..." : "");
+                       doutc(cl, "%s found %.*s%s\n", name, len, xattr->val,
+                             xattr->val_len > len ? "..." : "");
                        return xattr;
                }
        }
  
-       dout("%s %s: not found\n", __func__, name);
+       doutc(cl, "%s not found\n", name);
  
        return NULL;
  }
@@@ -735,19 -739,20 +739,20 @@@ static int __remove_xattr(struct ceph_i
  static char *__copy_xattr_names(struct ceph_inode_info *ci,
                                char *dest)
  {
+       struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
        struct rb_node *p;
        struct ceph_inode_xattr *xattr = NULL;
  
        p = rb_first(&ci->i_xattrs.index);
-       dout("__copy_xattr_names count=%d\n", ci->i_xattrs.count);
+       doutc(cl, "count=%d\n", ci->i_xattrs.count);
  
        while (p) {
                xattr = rb_entry(p, struct ceph_inode_xattr, node);
                memcpy(dest, xattr->name, xattr->name_len);
                dest[xattr->name_len] = '\0';
  
-               dout("dest=%s %p (%s) (%d/%d)\n", dest, xattr, xattr->name,
-                    xattr->name_len, ci->i_xattrs.names_size);
+               doutc(cl, "dest=%s %p (%s) (%d/%d)\n", dest, xattr, xattr->name,
+                     xattr->name_len, ci->i_xattrs.names_size);
  
                dest += xattr->name_len + 1;
                p = rb_next(p);
  
  void __ceph_destroy_xattrs(struct ceph_inode_info *ci)
  {
+       struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
        struct rb_node *p, *tmp;
        struct ceph_inode_xattr *xattr = NULL;
  
        p = rb_first(&ci->i_xattrs.index);
  
-       dout("__ceph_destroy_xattrs p=%p\n", p);
+       doutc(cl, "p=%p\n", p);
  
        while (p) {
                xattr = rb_entry(p, struct ceph_inode_xattr, node);
                tmp = p;
                p = rb_next(tmp);
-               dout("__ceph_destroy_xattrs next p=%p (%.*s)\n", p,
-                    xattr->name_len, xattr->name);
+               doutc(cl, "next p=%p (%.*s)\n", p, xattr->name_len, xattr->name);
                rb_erase(tmp, &ci->i_xattrs.index);
  
                __free_xattr(xattr);
@@@ -787,6 -792,7 +792,7 @@@ static int __build_xattrs(struct inode 
        __releases(ci->i_ceph_lock)
        __acquires(ci->i_ceph_lock)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        u32 namelen;
        u32 numattr = 0;
        void *p, *end;
        int err = 0;
        int i;
  
-       dout("__build_xattrs() len=%d\n",
-            ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);
+       doutc(cl, "len=%d\n",
+             ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);
  
        if (ci->i_xattrs.index_version >= ci->i_xattrs.version)
                return 0; /* already built */
@@@ -874,6 -880,8 +880,8 @@@ bad
  static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,
                                    int val_size)
  {
+       struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
        /*
         * 4 bytes for the length, and additional 4 bytes per each xattr name,
         * 4 bytes per each value
        int size = 4 + ci->i_xattrs.count*(4 + 4) +
                             ci->i_xattrs.names_size +
                             ci->i_xattrs.vals_size;
-       dout("__get_required_blob_size c=%d names.size=%d vals.size=%d\n",
-            ci->i_xattrs.count, ci->i_xattrs.names_size,
-            ci->i_xattrs.vals_size);
+       doutc(cl, "c=%d names.size=%d vals.size=%d\n", ci->i_xattrs.count,
+             ci->i_xattrs.names_size, ci->i_xattrs.vals_size);
  
        if (name_size)
                size += 4 + 4 + name_size + val_size;
   */
  struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci)
  {
+       struct inode *inode = &ci->netfs.inode;
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct rb_node *p;
        struct ceph_inode_xattr *xattr = NULL;
        struct ceph_buffer *old_blob = NULL;
        void *dest;
  
-       dout("__build_xattrs_blob %p\n", &ci->netfs.inode);
+       doutc(cl, "%p %llx.%llx\n", inode, ceph_vinop(inode));
        if (ci->i_xattrs.dirty) {
                int need = __get_required_blob_size(ci, 0, 0);
  
@@@ -962,6 -971,7 +971,7 @@@ static inline int __get_request_mask(st
  ssize_t __ceph_getxattr(struct inode *inode, const char *name, void *value,
                      size_t size)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_inode_xattr *xattr;
        struct ceph_vxattr *vxattr;
@@@ -1000,8 -1010,9 +1010,9 @@@ handle_non_vxattrs
        req_mask = __get_request_mask(inode);
  
        spin_lock(&ci->i_ceph_lock);
-       dout("getxattr %p name '%s' ver=%lld index_ver=%lld\n", inode, name,
-            ci->i_xattrs.version, ci->i_xattrs.index_version);
+       doutc(cl, "%p %llx.%llx name '%s' ver=%lld index_ver=%lld\n", inode,
+             ceph_vinop(inode), name, ci->i_xattrs.version,
+             ci->i_xattrs.index_version);
  
        if (ci->i_xattrs.version == 0 ||
            !((req_mask & CEPH_CAP_XATTR_SHARED) ||
  
                /* security module gets xattr while filling trace */
                if (current->journal_info) {
-                       pr_warn_ratelimited("sync getxattr %p "
-                                           "during filling trace\n", inode);
+                       pr_warn_ratelimited_client(cl,
+                               "sync %p %llx.%llx during filling trace\n",
+                               inode, ceph_vinop(inode));
                        return -EBUSY;
                }
  
  ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
  {
        struct inode *inode = d_inode(dentry);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        bool len_only = (size == 0);
        u32 namelen;
        int err;
  
        spin_lock(&ci->i_ceph_lock);
-       dout("listxattr %p ver=%lld index_ver=%lld\n", inode,
-            ci->i_xattrs.version, ci->i_xattrs.index_version);
+       doutc(cl, "%p %llx.%llx ver=%lld index_ver=%lld\n", inode,
+             ceph_vinop(inode), ci->i_xattrs.version,
+             ci->i_xattrs.index_version);
  
        if (ci->i_xattrs.version == 0 ||
            !__ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 1)) {
@@@ -1094,7 -1108,8 +1108,8 @@@ out
  static int ceph_sync_setxattr(struct inode *inode, const char *name,
                              const char *value, size_t size, int flags)
  {
-       struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
+       struct ceph_fs_client *fsc = ceph_sb_to_fs_client(inode->i_sb);
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_inode_info *ci = ceph_inode(inode);
        struct ceph_mds_request *req;
        struct ceph_mds_client *mdsc = fsc->mdsc;
                        flags |= CEPH_XATTR_REMOVE;
        }
  
-       dout("setxattr value size: %zu\n", size);
+       doutc(cl, "name %s value size %zu\n", name, size);
  
        /* do request */
        req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS);
        req->r_num_caps = 1;
        req->r_inode_drop = CEPH_CAP_XATTR_SHARED;
  
-       dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);
+       doutc(cl, "xattr.ver (before): %lld\n", ci->i_xattrs.version);
        err = ceph_mdsc_do_request(mdsc, NULL, req);
        ceph_mdsc_put_request(req);
-       dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);
+       doutc(cl, "xattr.ver (after): %lld\n", ci->i_xattrs.version);
  
  out:
        if (pagelist)
  int __ceph_setxattr(struct inode *inode, const char *name,
                        const void *value, size_t size, int flags)
  {
+       struct ceph_client *cl = ceph_inode_to_client(inode);
        struct ceph_vxattr *vxattr;
        struct ceph_inode_info *ci = ceph_inode(inode);
-       struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
        struct ceph_cap_flush *prealloc_cf = NULL;
        struct ceph_buffer *old_blob = NULL;
        int issued;
@@@ -1220,9 -1236,9 +1236,9 @@@ retry
        required_blob_size = __get_required_blob_size(ci, name_len, val_len);
        if ((ci->i_xattrs.version == 0) || !(issued & CEPH_CAP_XATTR_EXCL) ||
            (required_blob_size > mdsc->mdsmap->m_max_xattr_size)) {
-               dout("%s do sync setxattr: version: %llu size: %d max: %llu\n",
-                    __func__, ci->i_xattrs.version, required_blob_size,
-                    mdsc->mdsmap->m_max_xattr_size);
+               doutc(cl, "sync version: %llu size: %d max: %llu\n",
+                     ci->i_xattrs.version, required_blob_size,
+                     mdsc->mdsmap->m_max_xattr_size);
                goto do_sync;
        }
  
                }
        }
  
-       dout("setxattr %p name '%s' issued %s\n", inode, name,
-            ceph_cap_string(issued));
+       doutc(cl, "%p %llx.%llx name '%s' issued %s\n", inode,
+             ceph_vinop(inode), name, ceph_cap_string(issued));
        __build_xattrs(inode);
  
        if (!ci->i_xattrs.prealloc_blob ||
  
                spin_unlock(&ci->i_ceph_lock);
                ceph_buffer_put(old_blob); /* Shouldn't be required */
-               dout(" pre-allocating new blob size=%d\n", required_blob_size);
+               doutc(cl, " pre-allocating new blob size=%d\n",
+                     required_blob_size);
                blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
                if (!blob)
                        goto do_sync_unlocked;
@@@ -1285,8 -1302,9 +1302,9 @@@ do_sync_unlocked
  
        /* security module set xattr while filling trace */
        if (current->journal_info) {
-               pr_warn_ratelimited("sync setxattr %p "
-                                   "during filling trace\n", inode);
+               pr_warn_ratelimited_client(cl,
+                               "sync %p %llx.%llx during filling trace\n",
+                               inode, ceph_vinop(inode));
                err = -EBUSY;
        } else {
                err = ceph_sync_setxattr(inode, name, value, size, flags);
@@@ -1446,7 -1464,7 +1464,7 @@@ void ceph_release_acl_sec_ctx(struct ce
   * List of handlers for synthetic system.* attributes. Other
   * attributes are handled directly.
   */
 -const struct xattr_handler *ceph_xattr_handlers[] = {
 +const struct xattr_handler * const ceph_xattr_handlers[] = {
        &ceph_other_xattr_handler,
        NULL,
  };
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