2 * linux/fs/nfs/nfs3proc.c
4 * Client-side NFSv3 procedures stubs.
6 * Copyright (C) 1997, Olaf Kirch
10 #include <linux/errno.h>
11 #include <linux/string.h>
12 #include <linux/sunrpc/clnt.h>
13 #include <linux/slab.h>
14 #include <linux/nfs.h>
15 #include <linux/nfs3.h>
16 #include <linux/nfs_fs.h>
17 #include <linux/nfs_page.h>
18 #include <linux/lockd/bind.h>
19 #include <linux/nfs_mount.h>
20 #include <linux/freezer.h>
21 #include <linux/xattr.h>
27 #define NFSDBG_FACILITY NFSDBG_PROC
29 /* A wrapper to handle the EJUKEBOX error messages */
31 nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
35 res = rpc_call_sync(clnt, msg, flags);
38 freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME);
40 } while (!fatal_signal_pending(current));
44 #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
47 nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
49 if (task->tk_status != -EJUKEBOX)
51 if (task->tk_status == -EJUKEBOX)
52 nfs_inc_stats(inode, NFSIOS_DELAY);
54 rpc_restart_call(task);
55 rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
60 do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
61 struct nfs_fsinfo *info)
63 struct rpc_message msg = {
64 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
70 dprintk("%s: call fsinfo\n", __func__);
71 nfs_fattr_init(info->fattr);
72 status = rpc_call_sync(client, &msg, 0);
73 dprintk("%s: reply fsinfo: %d\n", __func__, status);
74 if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) {
75 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
76 msg.rpc_resp = info->fattr;
77 status = rpc_call_sync(client, &msg, 0);
78 dprintk("%s: reply getattr: %d\n", __func__, status);
84 * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb
87 nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
88 struct nfs_fsinfo *info)
92 status = do_proc_get_root(server->client, fhandle, info);
93 if (status && server->nfs_client->cl_rpcclient != server->client)
94 status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info);
99 * One function for each procedure in the NFS protocol.
102 nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
103 struct nfs_fattr *fattr, struct nfs4_label *label)
105 struct rpc_message msg = {
106 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
112 dprintk("NFS call getattr\n");
113 nfs_fattr_init(fattr);
114 status = rpc_call_sync(server->client, &msg, 0);
115 dprintk("NFS reply getattr: %d\n", status);
120 nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
123 struct inode *inode = d_inode(dentry);
124 struct nfs3_sattrargs arg = {
128 struct rpc_message msg = {
129 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
135 dprintk("NFS call setattr\n");
136 if (sattr->ia_valid & ATTR_FILE)
137 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
138 nfs_fattr_init(fattr);
139 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
141 nfs_setattr_update_inode(inode, sattr, fattr);
142 dprintk("NFS reply setattr: %d\n", status);
147 nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
148 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
149 struct nfs4_label *label)
151 struct nfs3_diropargs arg = {
156 struct nfs3_diropres res = {
160 struct rpc_message msg = {
161 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
167 dprintk("NFS call lookup %s\n", name->name);
168 res.dir_attr = nfs_alloc_fattr();
169 if (res.dir_attr == NULL)
172 nfs_fattr_init(fattr);
173 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
174 nfs_refresh_inode(dir, res.dir_attr);
175 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
176 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
177 msg.rpc_argp = fhandle;
178 msg.rpc_resp = fattr;
179 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
181 nfs_free_fattr(res.dir_attr);
182 dprintk("NFS reply lookup: %d\n", status);
186 static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
188 struct nfs3_accessargs arg = {
191 struct nfs3_accessres res;
192 struct rpc_message msg = {
193 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
196 .rpc_cred = entry->cred,
198 int mode = entry->mask;
199 int status = -ENOMEM;
201 dprintk("NFS call access\n");
204 arg.access |= NFS3_ACCESS_READ;
205 if (S_ISDIR(inode->i_mode)) {
206 if (mode & MAY_WRITE)
207 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
209 arg.access |= NFS3_ACCESS_LOOKUP;
211 if (mode & MAY_WRITE)
212 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
214 arg.access |= NFS3_ACCESS_EXECUTE;
217 res.fattr = nfs_alloc_fattr();
218 if (res.fattr == NULL)
221 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
222 nfs_refresh_inode(inode, res.fattr);
224 nfs_access_set_mask(entry, res.access);
225 nfs_free_fattr(res.fattr);
227 dprintk("NFS reply access: %d\n", status);
231 static int nfs3_proc_readlink(struct inode *inode, struct page *page,
232 unsigned int pgbase, unsigned int pglen)
234 struct nfs_fattr *fattr;
235 struct nfs3_readlinkargs args = {
241 struct rpc_message msg = {
242 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
245 int status = -ENOMEM;
247 dprintk("NFS call readlink\n");
248 fattr = nfs_alloc_fattr();
251 msg.rpc_resp = fattr;
253 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
254 nfs_refresh_inode(inode, fattr);
255 nfs_free_fattr(fattr);
257 dprintk("NFS reply readlink: %d\n", status);
261 struct nfs3_createdata {
262 struct rpc_message msg;
264 struct nfs3_createargs create;
265 struct nfs3_mkdirargs mkdir;
266 struct nfs3_symlinkargs symlink;
267 struct nfs3_mknodargs mknod;
269 struct nfs3_diropres res;
271 struct nfs_fattr fattr;
272 struct nfs_fattr dir_attr;
275 static struct nfs3_createdata *nfs3_alloc_createdata(void)
277 struct nfs3_createdata *data;
279 data = kzalloc(sizeof(*data), GFP_KERNEL);
281 data->msg.rpc_argp = &data->arg;
282 data->msg.rpc_resp = &data->res;
283 data->res.fh = &data->fh;
284 data->res.fattr = &data->fattr;
285 data->res.dir_attr = &data->dir_attr;
286 nfs_fattr_init(data->res.fattr);
287 nfs_fattr_init(data->res.dir_attr);
292 static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
296 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
297 nfs_post_op_update_inode(dir, data->res.dir_attr);
299 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
303 static void nfs3_free_createdata(struct nfs3_createdata *data)
309 * Create a regular file.
312 nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
315 struct posix_acl *default_acl, *acl;
316 struct nfs3_createdata *data;
317 int status = -ENOMEM;
319 dprintk("NFS call create %pd\n", dentry);
321 data = nfs3_alloc_createdata();
325 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
326 data->arg.create.fh = NFS_FH(dir);
327 data->arg.create.name = dentry->d_name.name;
328 data->arg.create.len = dentry->d_name.len;
329 data->arg.create.sattr = sattr;
331 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
332 if (flags & O_EXCL) {
333 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
334 data->arg.create.verifier[0] = cpu_to_be32(jiffies);
335 data->arg.create.verifier[1] = cpu_to_be32(current->pid);
338 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
343 status = nfs3_do_create(dir, dentry, data);
345 if (status != -ENOTSUPP)
347 /* If the server doesn't support the exclusive creation
348 * semantics, try again with simple 'guarded' mode. */
349 switch (data->arg.create.createmode) {
350 case NFS3_CREATE_EXCLUSIVE:
351 data->arg.create.createmode = NFS3_CREATE_GUARDED;
354 case NFS3_CREATE_GUARDED:
355 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
358 case NFS3_CREATE_UNCHECKED:
361 nfs_fattr_init(data->res.dir_attr);
362 nfs_fattr_init(data->res.fattr);
366 goto out_release_acls;
368 /* When we created the file with exclusive semantics, make
369 * sure we set the attributes afterwards. */
370 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
371 dprintk("NFS call setattr (post-create)\n");
373 if (!(sattr->ia_valid & ATTR_ATIME_SET))
374 sattr->ia_valid |= ATTR_ATIME;
375 if (!(sattr->ia_valid & ATTR_MTIME_SET))
376 sattr->ia_valid |= ATTR_MTIME;
378 /* Note: we could use a guarded setattr here, but I'm
379 * not sure this buys us anything (and I'd have
380 * to revamp the NFSv3 XDR code) */
381 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
382 nfs_post_op_update_inode(d_inode(dentry), data->res.fattr);
383 dprintk("NFS reply setattr (post-create): %d\n", status);
385 goto out_release_acls;
388 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
391 posix_acl_release(acl);
392 posix_acl_release(default_acl);
394 nfs3_free_createdata(data);
395 dprintk("NFS reply create: %d\n", status);
400 nfs3_proc_remove(struct inode *dir, const struct qstr *name)
402 struct nfs_removeargs arg = {
406 struct nfs_removeres res;
407 struct rpc_message msg = {
408 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
412 int status = -ENOMEM;
414 dprintk("NFS call remove %s\n", name->name);
415 res.dir_attr = nfs_alloc_fattr();
416 if (res.dir_attr == NULL)
419 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
420 nfs_post_op_update_inode(dir, res.dir_attr);
421 nfs_free_fattr(res.dir_attr);
423 dprintk("NFS reply remove: %d\n", status);
428 nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
430 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
433 static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
435 rpc_call_start(task);
439 nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
441 struct nfs_removeres *res;
442 if (nfs3_async_handle_jukebox(task, dir))
444 res = task->tk_msg.rpc_resp;
445 nfs_post_op_update_inode(dir, res->dir_attr);
450 nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
452 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
455 static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
457 rpc_call_start(task);
461 nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
462 struct inode *new_dir)
464 struct nfs_renameres *res;
466 if (nfs3_async_handle_jukebox(task, old_dir))
468 res = task->tk_msg.rpc_resp;
470 nfs_post_op_update_inode(old_dir, res->old_fattr);
471 nfs_post_op_update_inode(new_dir, res->new_fattr);
476 nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
478 struct nfs3_linkargs arg = {
479 .fromfh = NFS_FH(inode),
481 .toname = name->name,
484 struct nfs3_linkres res;
485 struct rpc_message msg = {
486 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
490 int status = -ENOMEM;
492 dprintk("NFS call link %s\n", name->name);
493 res.fattr = nfs_alloc_fattr();
494 res.dir_attr = nfs_alloc_fattr();
495 if (res.fattr == NULL || res.dir_attr == NULL)
498 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
499 nfs_post_op_update_inode(dir, res.dir_attr);
500 nfs_post_op_update_inode(inode, res.fattr);
502 nfs_free_fattr(res.dir_attr);
503 nfs_free_fattr(res.fattr);
504 dprintk("NFS reply link: %d\n", status);
509 nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
510 unsigned int len, struct iattr *sattr)
512 struct nfs3_createdata *data;
513 int status = -ENOMEM;
515 if (len > NFS3_MAXPATHLEN)
516 return -ENAMETOOLONG;
518 dprintk("NFS call symlink %pd\n", dentry);
520 data = nfs3_alloc_createdata();
523 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
524 data->arg.symlink.fromfh = NFS_FH(dir);
525 data->arg.symlink.fromname = dentry->d_name.name;
526 data->arg.symlink.fromlen = dentry->d_name.len;
527 data->arg.symlink.pages = &page;
528 data->arg.symlink.pathlen = len;
529 data->arg.symlink.sattr = sattr;
531 status = nfs3_do_create(dir, dentry, data);
533 nfs3_free_createdata(data);
535 dprintk("NFS reply symlink: %d\n", status);
540 nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
542 struct posix_acl *default_acl, *acl;
543 struct nfs3_createdata *data;
544 int status = -ENOMEM;
546 dprintk("NFS call mkdir %pd\n", dentry);
548 data = nfs3_alloc_createdata();
552 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
556 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
557 data->arg.mkdir.fh = NFS_FH(dir);
558 data->arg.mkdir.name = dentry->d_name.name;
559 data->arg.mkdir.len = dentry->d_name.len;
560 data->arg.mkdir.sattr = sattr;
562 status = nfs3_do_create(dir, dentry, data);
564 goto out_release_acls;
566 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
569 posix_acl_release(acl);
570 posix_acl_release(default_acl);
572 nfs3_free_createdata(data);
573 dprintk("NFS reply mkdir: %d\n", status);
578 nfs3_proc_rmdir(struct inode *dir, const struct qstr *name)
580 struct nfs_fattr *dir_attr;
581 struct nfs3_diropargs arg = {
586 struct rpc_message msg = {
587 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
590 int status = -ENOMEM;
592 dprintk("NFS call rmdir %s\n", name->name);
593 dir_attr = nfs_alloc_fattr();
594 if (dir_attr == NULL)
597 msg.rpc_resp = dir_attr;
598 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
599 nfs_post_op_update_inode(dir, dir_attr);
600 nfs_free_fattr(dir_attr);
602 dprintk("NFS reply rmdir: %d\n", status);
607 * The READDIR implementation is somewhat hackish - we pass the user buffer
608 * to the encode function, which installs it in the receive iovec.
609 * The decode function itself doesn't perform any decoding, it just makes
610 * sure the reply is syntactically correct.
612 * Also note that this implementation handles both plain readdir and
616 nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
617 u64 cookie, struct page **pages, unsigned int count, bool plus)
619 struct inode *dir = d_inode(dentry);
620 __be32 *verf = NFS_I(dir)->cookieverf;
621 struct nfs3_readdirargs arg = {
624 .verf = {verf[0], verf[1]},
629 struct nfs3_readdirres res = {
633 struct rpc_message msg = {
634 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
639 int status = -ENOMEM;
642 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
644 dprintk("NFS call readdir%s %d\n",
645 plus? "plus" : "", (unsigned int) cookie);
647 res.dir_attr = nfs_alloc_fattr();
648 if (res.dir_attr == NULL)
651 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
653 nfs_invalidate_atime(dir);
654 nfs_refresh_inode(dir, res.dir_attr);
656 nfs_free_fattr(res.dir_attr);
658 dprintk("NFS reply readdir%s: %d\n",
659 plus? "plus" : "", status);
664 nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
667 struct posix_acl *default_acl, *acl;
668 struct nfs3_createdata *data;
669 int status = -ENOMEM;
671 dprintk("NFS call mknod %pd %u:%u\n", dentry,
672 MAJOR(rdev), MINOR(rdev));
674 data = nfs3_alloc_createdata();
678 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
682 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
683 data->arg.mknod.fh = NFS_FH(dir);
684 data->arg.mknod.name = dentry->d_name.name;
685 data->arg.mknod.len = dentry->d_name.len;
686 data->arg.mknod.sattr = sattr;
687 data->arg.mknod.rdev = rdev;
689 switch (sattr->ia_mode & S_IFMT) {
691 data->arg.mknod.type = NF3BLK;
694 data->arg.mknod.type = NF3CHR;
697 data->arg.mknod.type = NF3FIFO;
700 data->arg.mknod.type = NF3SOCK;
707 status = nfs3_do_create(dir, dentry, data);
709 goto out_release_acls;
711 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
714 posix_acl_release(acl);
715 posix_acl_release(default_acl);
717 nfs3_free_createdata(data);
718 dprintk("NFS reply mknod: %d\n", status);
723 nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
724 struct nfs_fsstat *stat)
726 struct rpc_message msg = {
727 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
733 dprintk("NFS call fsstat\n");
734 nfs_fattr_init(stat->fattr);
735 status = rpc_call_sync(server->client, &msg, 0);
736 dprintk("NFS reply fsstat: %d\n", status);
741 do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
742 struct nfs_fsinfo *info)
744 struct rpc_message msg = {
745 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
751 dprintk("NFS call fsinfo\n");
752 nfs_fattr_init(info->fattr);
753 status = rpc_call_sync(client, &msg, 0);
754 dprintk("NFS reply fsinfo: %d\n", status);
759 * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via
763 nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
764 struct nfs_fsinfo *info)
768 status = do_proc_fsinfo(server->client, fhandle, info);
769 if (status && server->nfs_client->cl_rpcclient != server->client)
770 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
775 nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
776 struct nfs_pathconf *info)
778 struct rpc_message msg = {
779 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
785 dprintk("NFS call pathconf\n");
786 nfs_fattr_init(info->fattr);
787 status = rpc_call_sync(server->client, &msg, 0);
788 dprintk("NFS reply pathconf: %d\n", status);
792 static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
794 struct inode *inode = hdr->inode;
796 if (hdr->pgio_done_cb != NULL)
797 return hdr->pgio_done_cb(task, hdr);
799 if (nfs3_async_handle_jukebox(task, inode))
802 nfs_invalidate_atime(inode);
803 nfs_refresh_inode(inode, &hdr->fattr);
807 static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr,
808 struct rpc_message *msg)
810 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
813 static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task,
814 struct nfs_pgio_header *hdr)
816 rpc_call_start(task);
820 static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
822 struct inode *inode = hdr->inode;
824 if (hdr->pgio_done_cb != NULL)
825 return hdr->pgio_done_cb(task, hdr);
827 if (nfs3_async_handle_jukebox(task, inode))
829 if (task->tk_status >= 0)
830 nfs_writeback_update_inode(hdr);
834 static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr,
835 struct rpc_message *msg)
837 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
840 static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
842 rpc_call_start(task);
845 static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
847 if (data->commit_done_cb != NULL)
848 return data->commit_done_cb(task, data);
850 if (nfs3_async_handle_jukebox(task, data->inode))
852 nfs_refresh_inode(data->inode, data->res.fattr);
856 static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
858 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
861 static void nfs3_nlm_alloc_call(void *data)
863 struct nfs_lock_context *l_ctx = data;
864 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
865 get_nfs_open_context(l_ctx->open_context);
866 nfs_get_lock_context(l_ctx->open_context);
870 static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data)
872 struct nfs_lock_context *l_ctx = data;
873 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags))
874 return nfs_async_iocounter_wait(task, l_ctx);
879 static void nfs3_nlm_release_call(void *data)
881 struct nfs_lock_context *l_ctx = data;
882 struct nfs_open_context *ctx;
883 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
884 ctx = l_ctx->open_context;
885 nfs_put_lock_context(l_ctx);
886 put_nfs_open_context(ctx);
890 const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
891 .nlmclnt_alloc_call = nfs3_nlm_alloc_call,
892 .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare,
893 .nlmclnt_release_call = nfs3_nlm_release_call,
897 nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
899 struct inode *inode = file_inode(filp);
900 struct nfs_lock_context *l_ctx = NULL;
901 struct nfs_open_context *ctx = nfs_file_open_context(filp);
904 if (fl->fl_flags & FL_CLOSE) {
905 l_ctx = nfs_get_lock_context(ctx);
909 set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags);
912 status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx);
915 nfs_put_lock_context(l_ctx);
920 static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
925 static int nfs3_return_delegation(struct inode *inode)
931 static const struct inode_operations nfs3_dir_inode_operations = {
932 .create = nfs_create,
933 .lookup = nfs_lookup,
935 .unlink = nfs_unlink,
936 .symlink = nfs_symlink,
940 .rename = nfs_rename,
941 .permission = nfs_permission,
942 .getattr = nfs_getattr,
943 .setattr = nfs_setattr,
944 #ifdef CONFIG_NFS_V3_ACL
945 .listxattr = nfs3_listxattr,
946 .get_acl = nfs3_get_acl,
947 .set_acl = nfs3_set_acl,
951 static const struct inode_operations nfs3_file_inode_operations = {
952 .permission = nfs_permission,
953 .getattr = nfs_getattr,
954 .setattr = nfs_setattr,
955 #ifdef CONFIG_NFS_V3_ACL
956 .listxattr = nfs3_listxattr,
957 .get_acl = nfs3_get_acl,
958 .set_acl = nfs3_set_acl,
962 const struct nfs_rpc_ops nfs_v3_clientops = {
963 .version = 3, /* protocol version */
964 .dentry_ops = &nfs_dentry_operations,
965 .dir_inode_ops = &nfs3_dir_inode_operations,
966 .file_inode_ops = &nfs3_file_inode_operations,
967 .file_ops = &nfs_file_operations,
968 .nlmclnt_ops = &nlmclnt_fl_close_lock_ops,
969 .getroot = nfs3_proc_get_root,
970 .submount = nfs_submount,
971 .try_mount = nfs_try_mount,
972 .getattr = nfs3_proc_getattr,
973 .setattr = nfs3_proc_setattr,
974 .lookup = nfs3_proc_lookup,
975 .access = nfs3_proc_access,
976 .readlink = nfs3_proc_readlink,
977 .create = nfs3_proc_create,
978 .remove = nfs3_proc_remove,
979 .unlink_setup = nfs3_proc_unlink_setup,
980 .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
981 .unlink_done = nfs3_proc_unlink_done,
982 .rename_setup = nfs3_proc_rename_setup,
983 .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
984 .rename_done = nfs3_proc_rename_done,
985 .link = nfs3_proc_link,
986 .symlink = nfs3_proc_symlink,
987 .mkdir = nfs3_proc_mkdir,
988 .rmdir = nfs3_proc_rmdir,
989 .readdir = nfs3_proc_readdir,
990 .mknod = nfs3_proc_mknod,
991 .statfs = nfs3_proc_statfs,
992 .fsinfo = nfs3_proc_fsinfo,
993 .pathconf = nfs3_proc_pathconf,
994 .decode_dirent = nfs3_decode_dirent,
995 .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
996 .read_setup = nfs3_proc_read_setup,
997 .read_done = nfs3_read_done,
998 .write_setup = nfs3_proc_write_setup,
999 .write_done = nfs3_write_done,
1000 .commit_setup = nfs3_proc_commit_setup,
1001 .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
1002 .commit_done = nfs3_commit_done,
1003 .lock = nfs3_proc_lock,
1004 .clear_acl_cache = forget_all_cached_acls,
1005 .close_context = nfs_close_context,
1006 .have_delegation = nfs3_have_delegation,
1007 .return_delegation = nfs3_return_delegation,
1008 .alloc_client = nfs_alloc_client,
1009 .init_client = nfs_init_client,
1010 .free_client = nfs_free_client,
1011 .create_server = nfs3_create_server,
1012 .clone_server = nfs3_clone_server,