#include <linux/mpage.h>
#include <linux/swap.h>
#include <linux/writeback.h>
-#include <linux/statfs.h>
#include <linux/compat.h>
#include <linux/bit_spinlock.h>
#include <linux/xattr.h>
int compress_type,
struct page **compressed_pages)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *trans;
u64 isize = i_size_read(inode);
u64 actual_end = min(end + 1, isize);
u64 inline_len = actual_end - start;
- u64 aligned_end = ALIGN(end, root->sectorsize);
+ u64 aligned_end = ALIGN(end, fs_info->sectorsize);
u64 data_len = inline_len;
int ret;
struct btrfs_path *path;
data_len = compressed_size;
if (start > 0 ||
- actual_end > root->sectorsize ||
- data_len > BTRFS_MAX_INLINE_DATA_SIZE(root) ||
+ actual_end > fs_info->sectorsize ||
+ data_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info) ||
(!compressed_size &&
- (actual_end & (root->sectorsize - 1)) == 0) ||
+ (actual_end & (fs_info->sectorsize - 1)) == 0) ||
end + 1 < isize ||
- data_len > root->fs_info->max_inline) {
+ data_len > fs_info->max_inline) {
return 1;
}
btrfs_free_path(path);
return PTR_ERR(trans);
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
if (compressed_size && compressed_pages)
extent_item_size = btrfs_file_extent_calc_inline_size(
*/
btrfs_qgroup_free_data(inode, 0, PAGE_SIZE);
btrfs_free_path(path);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
return ret;
}
static inline int inode_need_compress(struct inode *inode)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
/* force compress */
- if (btrfs_test_opt(root->fs_info, FORCE_COMPRESS))
+ if (btrfs_test_opt(fs_info, FORCE_COMPRESS))
return 1;
/* bad compression ratios */
if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS)
return 0;
- if (btrfs_test_opt(root->fs_info, COMPRESS) ||
+ if (btrfs_test_opt(fs_info, COMPRESS) ||
BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS ||
BTRFS_I(inode)->force_compress)
return 1;
struct async_cow *async_cow,
int *num_added)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 num_bytes;
- u64 blocksize = root->sectorsize;
+ u64 blocksize = fs_info->sectorsize;
u64 actual_end;
u64 isize = i_size_read(inode);
int ret = 0;
unsigned long max_uncompressed = SZ_128K;
int i;
int will_compress;
- int compress_type = root->fs_info->compress_type;
+ int compress_type = fs_info->compress_type;
int redirty = 0;
/* if this is a small write inside eof, kick off a defrag */
nr_pages_ret = 0;
/* flag the file so we don't compress in the future */
- if (!btrfs_test_opt(root->fs_info, FORCE_COMPRESS) &&
+ if (!btrfs_test_opt(fs_info, FORCE_COMPRESS) &&
!(BTRFS_I(inode)->force_compress)) {
BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS;
}
static noinline void submit_compressed_extents(struct inode *inode,
struct async_cow *async_cow)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct async_extent *async_extent;
u64 alloc_hint = 0;
struct btrfs_key ins;
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
em->ram_bytes = async_extent->ram_size;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
em->compress_type = async_extent->compress_type;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
set_bit(EXTENT_FLAG_COMPRESSED, &em->flags);
async_extent->ram_size - 1, 0);
goto out_free_reserve;
}
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
/*
* clear dirty, set writeback and unlock the pages.
}
return;
out_free_reserve:
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
- btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
+ btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 1);
out_free:
extent_clear_unlock_delalloc(inode, async_extent->start,
async_extent->start +
int *page_started, unsigned long *nr_written,
int unlock, struct btrfs_dedupe_hash *hash)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 alloc_hint = 0;
u64 num_bytes;
unsigned long ram_size;
u64 disk_num_bytes;
u64 cur_alloc_size;
- u64 blocksize = root->sectorsize;
+ u64 blocksize = fs_info->sectorsize;
struct btrfs_key ins;
struct extent_map *em;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
}
BUG_ON(disk_num_bytes >
- btrfs_super_total_bytes(root->fs_info->super_copy));
+ btrfs_super_total_bytes(fs_info->super_copy));
alloc_hint = get_extent_allocation_hint(inode, start, num_bytes);
btrfs_drop_extent_cache(inode, start, start + num_bytes - 1, 0);
cur_alloc_size = disk_num_bytes;
ret = btrfs_reserve_extent(root, cur_alloc_size, cur_alloc_size,
- root->sectorsize, 0, alloc_hint,
+ fs_info->sectorsize, 0, alloc_hint,
&ins, 1, 1);
if (ret < 0)
goto out_unlock;
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
em->ram_bytes = ram_size;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
em->generation = -1;
goto out_drop_extent_cache;
}
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
if (disk_num_bytes < cur_alloc_size)
break;
out_drop_extent_cache:
btrfs_drop_extent_cache(inode, start, start + ram_size - 1, 0);
out_reserve:
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
- btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
+ btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 1);
out_unlock:
extent_clear_unlock_delalloc(inode, start, end, delalloc_end,
locked_page,
*/
static noinline void async_cow_submit(struct btrfs_work *work)
{
+ struct btrfs_fs_info *fs_info;
struct async_cow *async_cow;
struct btrfs_root *root;
unsigned long nr_pages;
async_cow = container_of(work, struct async_cow, work);
root = async_cow->root;
+ fs_info = root->fs_info;
nr_pages = (async_cow->end - async_cow->start + PAGE_SIZE) >>
PAGE_SHIFT;
/*
* atomic_sub_return implies a barrier for waitqueue_active
*/
- if (atomic_sub_return(nr_pages, &root->fs_info->async_delalloc_pages) <
+ if (atomic_sub_return(nr_pages, &fs_info->async_delalloc_pages) <
5 * SZ_1M &&
- waitqueue_active(&root->fs_info->async_submit_wait))
- wake_up(&root->fs_info->async_submit_wait);
+ waitqueue_active(&fs_info->async_submit_wait))
+ wake_up(&fs_info->async_submit_wait);
if (async_cow->inode)
submit_compressed_extents(async_cow->inode, async_cow);
u64 start, u64 end, int *page_started,
unsigned long *nr_written)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct async_cow *async_cow;
struct btrfs_root *root = BTRFS_I(inode)->root;
unsigned long nr_pages;
async_cow->start = start;
if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS &&
- !btrfs_test_opt(root->fs_info, FORCE_COMPRESS))
+ !btrfs_test_opt(fs_info, FORCE_COMPRESS))
cur_end = end;
else
cur_end = min(end, start + SZ_512K - 1);
nr_pages = (cur_end - start + PAGE_SIZE) >>
PAGE_SHIFT;
- atomic_add(nr_pages, &root->fs_info->async_delalloc_pages);
+ atomic_add(nr_pages, &fs_info->async_delalloc_pages);
- btrfs_queue_work(root->fs_info->delalloc_workers,
- &async_cow->work);
+ btrfs_queue_work(fs_info->delalloc_workers, &async_cow->work);
- if (atomic_read(&root->fs_info->async_delalloc_pages) > limit) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->async_delalloc_pages) <
- limit));
+ if (atomic_read(&fs_info->async_delalloc_pages) > limit) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->async_delalloc_pages) <
+ limit));
}
- while (atomic_read(&root->fs_info->async_submit_draining) &&
- atomic_read(&root->fs_info->async_delalloc_pages)) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->async_delalloc_pages) ==
- 0));
+ while (atomic_read(&fs_info->async_submit_draining) &&
+ atomic_read(&fs_info->async_delalloc_pages)) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->async_delalloc_pages) ==
+ 0));
}
*nr_written += nr_pages;
return 0;
}
-static noinline int csum_exist_in_range(struct btrfs_root *root,
+static noinline int csum_exist_in_range(struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num_bytes)
{
int ret;
struct btrfs_ordered_sum *sums;
LIST_HEAD(list);
- ret = btrfs_lookup_csums_range(root->fs_info->csum_root, bytenr,
+ ret = btrfs_lookup_csums_range(fs_info->csum_root, bytenr,
bytenr + num_bytes - 1, &list, 0);
if (ret == 0 && list_empty(&list))
return 0;
u64 start, u64 end, int *page_started, int force,
unsigned long *nr_written)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
struct extent_buffer *leaf;
return PTR_ERR(trans);
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
cow_start = (u64)-1;
cur_offset = start;
goto out_check;
if (extent_type == BTRFS_FILE_EXTENT_REG && !force)
goto out_check;
- if (btrfs_extent_readonly(root, disk_bytenr))
+ if (btrfs_extent_readonly(fs_info, disk_bytenr))
goto out_check;
if (btrfs_cross_ref_exist(trans, root, ino,
found_key.offset -
* this ensure that csum for a given extent are
* either valid or do not exist.
*/
- if (csum_exist_in_range(root, disk_bytenr, num_bytes))
+ if (csum_exist_in_range(fs_info, disk_bytenr,
+ num_bytes))
goto out_check;
- if (!btrfs_inc_nocow_writers(root->fs_info,
- disk_bytenr))
+ if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr))
goto out_check;
nocow = 1;
} else if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
extent_end = found_key.offset +
btrfs_file_extent_inline_len(leaf,
path->slots[0], fi);
- extent_end = ALIGN(extent_end, root->sectorsize);
+ extent_end = ALIGN(extent_end,
+ fs_info->sectorsize);
} else {
BUG_ON(1);
}
if (!nolock && nocow)
btrfs_end_write_no_snapshoting(root);
if (nocow)
- btrfs_dec_nocow_writers(root->fs_info,
- disk_bytenr);
+ btrfs_dec_nocow_writers(fs_info, disk_bytenr);
goto next_slot;
}
if (!nocow) {
if (!nolock && nocow)
btrfs_end_write_no_snapshoting(root);
if (nocow)
- btrfs_dec_nocow_writers(root->fs_info,
+ btrfs_dec_nocow_writers(fs_info,
disk_bytenr);
goto error;
}
em->block_start = disk_bytenr;
em->orig_block_len = disk_num_bytes;
em->ram_bytes = ram_bytes;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
em->mod_start = em->start;
em->mod_len = em->len;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
ret = btrfs_add_ordered_extent(inode, cur_offset, disk_bytenr,
num_bytes, num_bytes, type);
if (nocow)
- btrfs_dec_nocow_writers(root->fs_info, disk_bytenr);
+ btrfs_dec_nocow_writers(fs_info, disk_bytenr);
BUG_ON(ret); /* -ENOMEM */
if (root->root_key.objectid ==
}
error:
- err = btrfs_end_transaction(trans, root);
+ err = btrfs_end_transaction(trans);
if (!ret)
ret = err;
static void btrfs_add_delalloc_inodes(struct btrfs_root *root,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+
spin_lock(&root->delalloc_lock);
if (list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
list_add_tail(&BTRFS_I(inode)->delalloc_inodes,
&BTRFS_I(inode)->runtime_flags);
root->nr_delalloc_inodes++;
if (root->nr_delalloc_inodes == 1) {
- spin_lock(&root->fs_info->delalloc_root_lock);
+ spin_lock(&fs_info->delalloc_root_lock);
BUG_ON(!list_empty(&root->delalloc_root));
list_add_tail(&root->delalloc_root,
- &root->fs_info->delalloc_roots);
- spin_unlock(&root->fs_info->delalloc_root_lock);
+ &fs_info->delalloc_roots);
+ spin_unlock(&fs_info->delalloc_root_lock);
}
}
spin_unlock(&root->delalloc_lock);
static void btrfs_del_delalloc_inode(struct btrfs_root *root,
struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+
spin_lock(&root->delalloc_lock);
if (!list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
list_del_init(&BTRFS_I(inode)->delalloc_inodes);
&BTRFS_I(inode)->runtime_flags);
root->nr_delalloc_inodes--;
if (!root->nr_delalloc_inodes) {
- spin_lock(&root->fs_info->delalloc_root_lock);
+ spin_lock(&fs_info->delalloc_root_lock);
BUG_ON(list_empty(&root->delalloc_root));
list_del_init(&root->delalloc_root);
- spin_unlock(&root->fs_info->delalloc_root_lock);
+ spin_unlock(&fs_info->delalloc_root_lock);
}
}
spin_unlock(&root->delalloc_lock);
struct extent_state *state, unsigned *bits)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+
if ((*bits & EXTENT_DEFRAG) && !(*bits & EXTENT_DELALLOC))
WARN_ON(1);
/*
}
/* For sanity tests */
- if (btrfs_is_testing(root->fs_info))
+ if (btrfs_is_testing(fs_info))
return;
- __percpu_counter_add(&root->fs_info->delalloc_bytes, len,
- root->fs_info->delalloc_batch);
+ __percpu_counter_add(&fs_info->delalloc_bytes, len,
+ fs_info->delalloc_batch);
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->delalloc_bytes += len;
if (*bits & EXTENT_DEFRAG)
struct extent_state *state,
unsigned *bits)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 len = state->end + 1 - state->start;
u64 num_extents = div64_u64(len + BTRFS_MAX_EXTENT_SIZE -1,
BTRFS_MAX_EXTENT_SIZE);
* error.
*/
if (*bits & EXTENT_DO_ACCOUNTING &&
- root != root->fs_info->tree_root)
+ root != fs_info->tree_root)
btrfs_delalloc_release_metadata(inode, len);
/* For sanity tests. */
- if (btrfs_is_testing(root->fs_info))
+ if (btrfs_is_testing(fs_info))
return;
if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
btrfs_free_reserved_data_space_noquota(inode,
state->start, len);
- __percpu_counter_add(&root->fs_info->delalloc_bytes, -len,
- root->fs_info->delalloc_batch);
+ __percpu_counter_add(&fs_info->delalloc_bytes, -len,
+ fs_info->delalloc_batch);
spin_lock(&BTRFS_I(inode)->lock);
BTRFS_I(inode)->delalloc_bytes -= len;
if (do_list && BTRFS_I(inode)->delalloc_bytes == 0 &&
size_t size, struct bio *bio,
unsigned long bio_flags)
{
- struct btrfs_root *root = BTRFS_I(page->mapping->host)->root;
+ struct inode *inode = page->mapping->host;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 logical = (u64)bio->bi_iter.bi_sector << 9;
u64 length = 0;
u64 map_length;
length = bio->bi_iter.bi_size;
map_length = length;
- ret = btrfs_map_block(root->fs_info, bio_op(bio), logical,
- &map_length, NULL, 0);
+ ret = btrfs_map_block(fs_info, btrfs_op(bio), logical, &map_length,
+ NULL, 0);
if (ret < 0)
return ret;
if (map_length < length + size)
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
int ret = 0;
- ret = btrfs_csum_one_bio(root, inode, bio, 0, 0);
+ ret = btrfs_csum_one_bio(inode, bio, 0, 0);
BUG_ON(ret); /* -ENOMEM */
return 0;
}
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
- ret = btrfs_map_bio(root, bio, mirror_num, 1);
+ ret = btrfs_map_bio(fs_info, bio, mirror_num, 1);
if (ret) {
bio->bi_error = ret;
bio_endio(bio);
int mirror_num, unsigned long bio_flags,
u64 bio_offset)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
enum btrfs_wq_endio_type metadata = BTRFS_WQ_ENDIO_DATA;
int ret = 0;
metadata = BTRFS_WQ_ENDIO_FREE_SPACE;
if (bio_op(bio) != REQ_OP_WRITE) {
- ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata);
+ ret = btrfs_bio_wq_end_io(fs_info, bio, metadata);
if (ret)
goto out;
bio_flags);
goto out;
} else if (!skip_sum) {
- ret = btrfs_lookup_bio_sums(root, inode, bio, NULL);
+ ret = btrfs_lookup_bio_sums(inode, bio, NULL);
if (ret)
goto out;
}
if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID)
goto mapit;
/* we're doing a write, do the async checksumming */
- ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- inode, bio, mirror_num,
- bio_flags, bio_offset,
- __btrfs_submit_bio_start,
- __btrfs_submit_bio_done);
+ ret = btrfs_wq_submit_bio(fs_info, inode, bio, mirror_num,
+ bio_flags, bio_offset,
+ __btrfs_submit_bio_start,
+ __btrfs_submit_bio_done);
goto out;
} else if (!skip_sum) {
- ret = btrfs_csum_one_bio(root, inode, bio, 0, 0);
+ ret = btrfs_csum_one_bio(inode, bio, 0, 0);
if (ret)
goto out;
}
mapit:
- ret = btrfs_map_bio(root, bio, mirror_num, 0);
+ ret = btrfs_map_bio(fs_info, bio, mirror_num, 0);
out:
if (ret < 0) {
static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end)
{
struct inode *inode = page->mapping->host;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_writepage_fixup *fixup;
- struct btrfs_root *root = BTRFS_I(inode)->root;
/* this page is properly in the ordered list */
if (TestClearPagePrivate2(page))
btrfs_init_work(&fixup->work, btrfs_fixup_helper,
btrfs_writepage_fixup_worker, NULL, NULL);
fixup->page = page;
- btrfs_queue_work(root->fs_info->fixup_workers, &fixup->work);
+ btrfs_queue_work(fs_info->fixup_workers, &fixup->work);
return -EBUSY;
}
ins.objectid = disk_bytenr;
ins.offset = disk_num_bytes;
ins.type = BTRFS_EXTENT_ITEM_KEY;
- ret = btrfs_alloc_reserved_file_extent(trans, root,
- root->root_key.objectid,
- btrfs_ino(inode), file_pos,
- ram_bytes, &ins);
+ ret = btrfs_alloc_reserved_file_extent(trans, root->root_key.objectid,
+ btrfs_ino(inode), file_pos,
+ ram_bytes, &ins);
/*
* Release the reserved range from inode dirty range map, as it is
* already moved into delayed_ref_head
void *ctx)
{
struct btrfs_file_extent_item *extent;
- struct btrfs_fs_info *fs_info;
struct old_sa_defrag_extent *old = ctx;
struct new_sa_defrag_extent *new = old->new;
struct btrfs_path *path = new->path;
struct sa_defrag_extent_backref *backref;
struct extent_buffer *leaf;
struct inode *inode = new->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int slot;
int ret;
u64 extent_offset;
key.type = BTRFS_ROOT_ITEM_KEY;
key.offset = (u64)-1;
- fs_info = BTRFS_I(inode)->root->fs_info;
root = btrfs_read_fs_root_no_name(fs_info, &key);
if (IS_ERR(root)) {
if (PTR_ERR(root) == -ENOENT)
static noinline bool record_extent_backrefs(struct btrfs_path *path,
struct new_sa_defrag_extent *new)
{
- struct btrfs_fs_info *fs_info = BTRFS_I(new->inode)->root->fs_info;
+ struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb);
struct old_sa_defrag_extent *old, *tmp;
int ret;
struct btrfs_file_extent_item *item;
struct btrfs_ordered_extent *ordered;
struct btrfs_trans_handle *trans;
- struct btrfs_fs_info *fs_info;
struct btrfs_root *root;
struct btrfs_key key;
struct extent_buffer *leaf;
struct old_sa_defrag_extent *old = backref->old;
struct new_sa_defrag_extent *new = old->new;
- struct inode *src_inode = new->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb);
struct inode *inode;
struct extent_state *cached = NULL;
int ret = 0;
key.type = BTRFS_ROOT_ITEM_KEY;
key.offset = (u64)-1;
- fs_info = BTRFS_I(src_inode)->root->fs_info;
index = srcu_read_lock(&fs_info->subvol_srcu);
root = btrfs_read_fs_root_no_name(fs_info, &key);
inode_add_bytes(inode, len);
btrfs_release_path(path);
- ret = btrfs_inc_extent_ref(trans, root, new->bytenr,
+ ret = btrfs_inc_extent_ref(trans, fs_info, new->bytenr,
new->disk_len, 0,
backref->root_id, backref->inum,
new->file_pos); /* start - extent_offset */
out_free_path:
btrfs_release_path(path);
path->leave_spinning = 0;
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
out_unlock:
unlock_extent_cached(&BTRFS_I(inode)->io_tree, lock_start, lock_end,
&cached, GFP_NOFS);
static void relink_file_extents(struct new_sa_defrag_extent *new)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb);
struct btrfs_path *path;
struct sa_defrag_extent_backref *backref;
struct sa_defrag_extent_backref *prev = NULL;
out:
free_sa_defrag_extent(new);
- atomic_dec(&root->fs_info->defrag_running);
- wake_up(&root->fs_info->transaction_wait);
+ atomic_dec(&fs_info->defrag_running);
+ wake_up(&fs_info->transaction_wait);
}
static struct new_sa_defrag_extent *
record_old_file_extents(struct inode *inode,
struct btrfs_ordered_extent *ordered)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_path *path;
struct btrfs_key key;
}
btrfs_free_path(path);
- atomic_inc(&root->fs_info->defrag_running);
+ atomic_inc(&fs_info->defrag_running);
return new;
return NULL;
}
-static void btrfs_release_delalloc_bytes(struct btrfs_root *root,
+static void btrfs_release_delalloc_bytes(struct btrfs_fs_info *fs_info,
u64 start, u64 len)
{
struct btrfs_block_group_cache *cache;
- cache = btrfs_lookup_block_group(root->fs_info, start);
+ cache = btrfs_lookup_block_group(fs_info, start);
ASSERT(cache);
spin_lock(&cache->lock);
static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
{
struct inode *inode = ordered_extent->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans = NULL;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
trans = NULL;
goto out;
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
ret = btrfs_update_inode_fallback(trans, root, inode);
if (ret) /* -ENOMEM or corruption */
btrfs_abort_transaction(trans, ret);
goto out_unlock;
}
- trans->block_rsv = &root->fs_info->delalloc_block_rsv;
+ trans->block_rsv = &fs_info->delalloc_block_rsv;
if (test_bit(BTRFS_ORDERED_COMPRESSED, &ordered_extent->flags))
compress_type = ordered_extent->compress_type;
ordered_extent->file_offset +
logical_len);
} else {
- BUG_ON(root == root->fs_info->tree_root);
+ BUG_ON(root == fs_info->tree_root);
ret = insert_reserved_file_extent(trans, inode,
ordered_extent->file_offset,
ordered_extent->start,
compress_type, 0, 0,
BTRFS_FILE_EXTENT_REG);
if (!ret)
- btrfs_release_delalloc_bytes(root,
+ btrfs_release_delalloc_bytes(fs_info,
ordered_extent->start,
ordered_extent->disk_len);
}
ordered_extent->file_offset +
ordered_extent->len - 1, &cached_state, GFP_NOFS);
out:
- if (root != root->fs_info->tree_root)
+ if (root != fs_info->tree_root)
btrfs_delalloc_release_metadata(inode, ordered_extent->len);
if (trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret || truncated) {
u64 start, end;
if ((ret || !logical_len) &&
!test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags) &&
!test_bit(BTRFS_ORDERED_PREALLOC, &ordered_extent->flags))
- btrfs_free_reserved_extent(root, ordered_extent->start,
+ btrfs_free_reserved_extent(fs_info,
+ ordered_extent->start,
ordered_extent->disk_len, 1);
}
if (new) {
if (ret) {
free_sa_defrag_extent(new);
- atomic_dec(&root->fs_info->defrag_running);
+ atomic_dec(&fs_info->defrag_running);
} else {
relink_file_extents(new);
}
struct extent_state *state, int uptodate)
{
struct inode *inode = page->mapping->host;
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_extent *ordered_extent = NULL;
struct btrfs_workqueue *wq;
btrfs_work_func_t func;
return 0;
if (btrfs_is_free_space_inode(inode)) {
- wq = root->fs_info->endio_freespace_worker;
+ wq = fs_info->endio_freespace_worker;
func = btrfs_freespace_write_helper;
} else {
- wq = root->fs_info->endio_write_workers;
+ wq = fs_info->endio_write_workers;
func = btrfs_endio_write_helper;
}
kaddr = kmap_atomic(page);
csum = btrfs_csum_data(kaddr + pgoff, csum, len);
- btrfs_csum_final(csum, (char *)&csum);
+ btrfs_csum_final(csum, (u8 *)&csum);
if (csum != csum_expected)
goto zeroit;
void btrfs_add_delayed_iput(struct inode *inode)
{
- struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_inode *binode = BTRFS_I(inode);
if (atomic_add_unless(&inode->i_count, -1, 1))
spin_unlock(&fs_info->delayed_iput_lock);
}
-void btrfs_run_delayed_iputs(struct btrfs_root *root)
+void btrfs_run_delayed_iputs(struct btrfs_fs_info *fs_info)
{
- struct btrfs_fs_info *fs_info = root->fs_info;
spin_lock(&fs_info->delayed_iput_lock);
while (!list_empty(&fs_info->delayed_iputs)) {
void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_block_rsv *block_rsv;
int ret;
if (test_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state) &&
btrfs_root_refs(&root->root_item) > 0) {
- ret = btrfs_del_orphan_item(trans, root->fs_info->tree_root,
+ ret = btrfs_del_orphan_item(trans, fs_info->tree_root,
root->root_key.objectid);
if (ret)
btrfs_abort_transaction(trans, ret);
if (block_rsv) {
WARN_ON(block_rsv->size > 0);
- btrfs_free_block_rsv(root, block_rsv);
+ btrfs_free_block_rsv(fs_info, block_rsv);
}
}
*/
int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *block_rsv = NULL;
int reserve = 0;
int ret;
if (!root->orphan_block_rsv) {
- block_rsv = btrfs_alloc_block_rsv(root, BTRFS_BLOCK_RSV_TEMP);
+ block_rsv = btrfs_alloc_block_rsv(fs_info,
+ BTRFS_BLOCK_RSV_TEMP);
if (!block_rsv)
return -ENOMEM;
}
if (!root->orphan_block_rsv) {
root->orphan_block_rsv = block_rsv;
} else if (block_rsv) {
- btrfs_free_block_rsv(root, block_rsv);
+ btrfs_free_block_rsv(fs_info, block_rsv);
block_rsv = NULL;
}
/* insert an orphan item to track subvolume contains orphan files */
if (insert >= 2) {
- ret = btrfs_insert_orphan_item(trans, root->fs_info->tree_root,
+ ret = btrfs_insert_orphan_item(trans, fs_info->tree_root,
root->root_key.objectid);
if (ret && ret != -EEXIST) {
btrfs_abort_transaction(trans, ret);
*/
int btrfs_orphan_cleanup(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_key key, found_key;
*/
if (found_key.offset == last_objectid) {
- btrfs_err(root->fs_info,
- "Error removing orphan entry, stopping orphan cleanup");
+ btrfs_err(fs_info,
+ "Error removing orphan entry, stopping orphan cleanup");
ret = -EINVAL;
goto out;
}
found_key.objectid = found_key.offset;
found_key.type = BTRFS_INODE_ITEM_KEY;
found_key.offset = 0;
- inode = btrfs_iget(root->fs_info->sb, &found_key, root, NULL);
+ inode = btrfs_iget(fs_info->sb, &found_key, root, NULL);
ret = PTR_ERR_OR_ZERO(inode);
if (ret && ret != -ENOENT)
goto out;
- if (ret == -ENOENT && root == root->fs_info->tree_root) {
+ if (ret == -ENOENT && root == fs_info->tree_root) {
struct btrfs_root *dead_root;
struct btrfs_fs_info *fs_info = root->fs_info;
int is_dead_root = 0;
ret = PTR_ERR(trans);
goto out;
}
- btrfs_debug(root->fs_info, "auto deleting %Lu",
- found_key.objectid);
+ btrfs_debug(fs_info, "auto deleting %Lu",
+ found_key.objectid);
ret = btrfs_del_orphan_item(trans, root,
found_key.objectid);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret)
goto out;
continue;
goto out;
}
ret = btrfs_orphan_add(trans, inode);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret) {
iput(inode);
goto out;
root->orphan_cleanup_state = ORPHAN_CLEANUP_DONE;
if (root->orphan_block_rsv)
- btrfs_block_rsv_release(root, root->orphan_block_rsv,
+ btrfs_block_rsv_release(fs_info, root->orphan_block_rsv,
(u64)-1);
if (root->orphan_block_rsv ||
test_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state)) {
trans = btrfs_join_transaction(root);
if (!IS_ERR(trans))
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
}
if (nr_unlink)
- btrfs_debug(root->fs_info, "unlinked %d orphans", nr_unlink);
+ btrfs_debug(fs_info, "unlinked %d orphans", nr_unlink);
if (nr_truncate)
- btrfs_debug(root->fs_info, "truncated %d orphans", nr_truncate);
+ btrfs_debug(fs_info, "truncated %d orphans", nr_truncate);
out:
if (ret)
- btrfs_err(root->fs_info,
- "could not do orphan cleanup %d", ret);
+ btrfs_err(fs_info, "could not do orphan cleanup %d", ret);
btrfs_free_path(path);
return ret;
}
*/
static int btrfs_read_locked_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_inode_item *inode_item;
* This is required for both inode re-read from disk and delayed inode
* in delayed_nodes_tree.
*/
- if (BTRFS_I(inode)->last_trans == root->fs_info->generation)
+ if (BTRFS_I(inode)->last_trans == fs_info->generation)
set_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
&BTRFS_I(inode)->runtime_flags);
path->slots[0] = first_xattr_slot;
ret = btrfs_load_inode_props(inode, path);
if (ret)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"error loading props for ino %llu (root %llu): %d",
btrfs_ino(inode),
root->root_key.objectid, ret);
break;
case S_IFDIR:
inode->i_fop = &btrfs_dir_file_operations;
- if (root == root->fs_info->tree_root)
+ if (root == fs_info->tree_root)
inode->i_op = &btrfs_dir_ro_inode_operations;
else
inode->i_op = &btrfs_dir_inode_operations;
noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
/*
*/
if (!btrfs_is_free_space_inode(inode)
&& root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
- && !test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) {
+ && !test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags)) {
btrfs_update_root_times(trans, root);
ret = btrfs_delayed_update_inode(trans, root, inode);
struct inode *dir, struct inode *inode,
const char *name, int name_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
int ret = 0;
struct extent_buffer *leaf;
ret = btrfs_del_inode_ref(trans, root, name, name_len, ino,
dir_ino, &index);
if (ret) {
- btrfs_info(root->fs_info,
+ btrfs_info(fs_info,
"failed to delete reference to %.*s, inode %llu parent %llu",
name_len, name, ino, dir_ino);
btrfs_abort_transaction(trans, ret);
goto err;
}
skip_backref:
- ret = btrfs_delete_delayed_dir_index(trans, root, dir, index);
+ ret = btrfs_delete_delayed_dir_index(trans, fs_info, dir, index);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto err;
}
out:
- btrfs_end_transaction(trans, root);
- btrfs_btree_balance_dirty(root);
+ btrfs_end_transaction(trans);
+ btrfs_btree_balance_dirty(root->fs_info);
return ret;
}
struct inode *dir, u64 objectid,
const char *name, int name_len)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_dir_item *di;
}
btrfs_release_path(path);
- ret = btrfs_del_root_ref(trans, root->fs_info->tree_root,
- objectid, root->root_key.objectid,
- dir_ino, &index, name, name_len);
+ ret = btrfs_del_root_ref(trans, fs_info, objectid,
+ root->root_key.objectid, dir_ino,
+ &index, name, name_len);
if (ret < 0) {
if (ret != -ENOENT) {
btrfs_abort_transaction(trans, ret);
}
btrfs_release_path(path);
- ret = btrfs_delete_delayed_dir_index(trans, root, dir, index);
+ ret = btrfs_delete_delayed_dir_index(trans, fs_info, dir, index);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
BTRFS_I(dir)->last_unlink_trans = last_unlink_trans;
}
out:
- btrfs_end_transaction(trans, root);
- btrfs_btree_balance_dirty(root);
+ btrfs_end_transaction(trans);
+ btrfs_btree_balance_dirty(root->fs_info);
return err;
}
struct btrfs_root *root,
u64 bytes_deleted)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
/*
* This is only used to apply pressure to the enospc system, we don't
* intend to use this reservation at all.
*/
- bytes_deleted = btrfs_csum_bytes_to_leaves(root, bytes_deleted);
- bytes_deleted *= root->nodesize;
- ret = btrfs_block_rsv_add(root, &root->fs_info->trans_block_rsv,
+ bytes_deleted = btrfs_csum_bytes_to_leaves(fs_info, bytes_deleted);
+ bytes_deleted *= fs_info->nodesize;
+ ret = btrfs_block_rsv_add(root, &fs_info->trans_block_rsv,
bytes_deleted, BTRFS_RESERVE_NO_FLUSH);
if (!ret) {
- trace_btrfs_space_reservation(root->fs_info, "transaction",
+ trace_btrfs_space_reservation(fs_info, "transaction",
trans->transid,
bytes_deleted, 1);
trans->bytes_reserved += bytes_deleted;
btrfs_set_file_extent_ram_bytes(leaf, fi, size);
size = btrfs_file_extent_calc_inline_size(size);
- btrfs_truncate_item(root, path, size, 1);
+ btrfs_truncate_item(root->fs_info, path, size, 1);
if (test_bit(BTRFS_ROOT_REF_COWS, &root->state))
inode_sub_bytes(inode, item_end + 1 - new_size);
struct inode *inode,
u64 new_size, u32 min_type)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_file_extent_item *fi;
* extent just the way it is.
*/
if (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
- root == root->fs_info->tree_root)
+ root == fs_info->tree_root)
btrfs_drop_extent_cache(inode, ALIGN(new_size,
- root->sectorsize), (u64)-1, 0);
+ fs_info->sectorsize),
+ (u64)-1, 0);
/*
* This function is also used to drop the items in the log tree before
* bytes_deleted is > 0, it will be huge by the time we get here
*/
if (be_nice && bytes_deleted > SZ_32M) {
- if (btrfs_should_end_transaction(trans, root)) {
+ if (btrfs_should_end_transaction(trans)) {
err = -EAGAIN;
goto error;
}
btrfs_file_extent_num_bytes(leaf, fi);
extent_num_bytes = ALIGN(new_size -
found_key.offset,
- root->sectorsize);
+ fs_info->sectorsize);
btrfs_set_file_extent_num_bytes(leaf, fi,
extent_num_bytes);
num_dec = (orig_num_bytes -
if (found_extent &&
(test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
- root == root->fs_info->tree_root)) {
+ root == fs_info->tree_root)) {
btrfs_set_path_blocking(path);
bytes_deleted += extent_num_bytes;
- ret = btrfs_free_extent(trans, root, extent_start,
+ ret = btrfs_free_extent(trans, fs_info, extent_start,
extent_num_bytes, 0,
btrfs_header_owner(leaf),
ino, extent_offset);
BUG_ON(ret);
- if (btrfs_should_throttle_delayed_refs(trans, root))
- btrfs_async_run_delayed_refs(root,
+ if (btrfs_should_throttle_delayed_refs(trans, fs_info))
+ btrfs_async_run_delayed_refs(fs_info,
trans->delayed_ref_updates * 2,
trans->transid, 0);
if (be_nice) {
should_end = 1;
}
if (btrfs_should_throttle_delayed_refs(trans,
- root)) {
+ fs_info))
should_throttle = 1;
- }
}
}
unsigned long updates = trans->delayed_ref_updates;
if (updates) {
trans->delayed_ref_updates = 0;
- ret = btrfs_run_delayed_refs(trans, root, updates * 2);
+ ret = btrfs_run_delayed_refs(trans,
+ fs_info,
+ updates * 2);
if (ret && !err)
err = ret;
}
unsigned long updates = trans->delayed_ref_updates;
if (updates) {
trans->delayed_ref_updates = 0;
- ret = btrfs_run_delayed_refs(trans, root, updates * 2);
+ ret = btrfs_run_delayed_refs(trans, fs_info,
+ updates * 2);
if (ret && !err)
err = ret;
}
int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
int front)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
char *kaddr;
- u32 blocksize = root->sectorsize;
+ u32 blocksize = fs_info->sectorsize;
pgoff_t index = from >> PAGE_SHIFT;
unsigned offset = from & (blocksize - 1);
struct page *page;
static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode,
u64 offset, u64 len)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_trans_handle *trans;
int ret;
* Still need to make sure the inode looks like it's been updated so
* that any holes get logged if we fsync.
*/
- if (btrfs_fs_incompat(root->fs_info, NO_HOLES)) {
- BTRFS_I(inode)->last_trans = root->fs_info->generation;
+ if (btrfs_fs_incompat(fs_info, NO_HOLES)) {
+ BTRFS_I(inode)->last_trans = fs_info->generation;
BTRFS_I(inode)->last_sub_trans = root->log_transid;
BTRFS_I(inode)->last_log_commit = root->last_log_commit;
return 0;
ret = btrfs_drop_extents(trans, root, inode, offset, offset + len, 1);
if (ret) {
btrfs_abort_transaction(trans, ret);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
return ret;
}
btrfs_abort_transaction(trans, ret);
else
btrfs_update_inode(trans, root, inode);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
return ret;
}
*/
int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct extent_map *em = NULL;
struct extent_state *cached_state = NULL;
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
- u64 hole_start = ALIGN(oldsize, root->sectorsize);
- u64 block_end = ALIGN(size, root->sectorsize);
+ u64 hole_start = ALIGN(oldsize, fs_info->sectorsize);
+ u64 block_end = ALIGN(size, fs_info->sectorsize);
u64 last_byte;
u64 cur_offset;
u64 hole_size;
break;
}
last_byte = min(extent_map_end(em), block_end);
- last_byte = ALIGN(last_byte , root->sectorsize);
+ last_byte = ALIGN(last_byte, fs_info->sectorsize);
if (!test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) {
struct extent_map *hole_em;
hole_size = last_byte - cur_offset;
hole_em->block_len = 0;
hole_em->orig_block_len = 0;
hole_em->ram_bytes = hole_size;
- hole_em->bdev = root->fs_info->fs_devices->latest_bdev;
+ hole_em->bdev = fs_info->fs_devices->latest_bdev;
hole_em->compress_type = BTRFS_COMPRESS_NONE;
- hole_em->generation = root->fs_info->generation;
+ hole_em->generation = fs_info->generation;
while (1) {
write_lock(&em_tree->lock);
pagecache_isize_extended(inode, oldsize, newsize);
ret = btrfs_update_inode(trans, root, inode);
btrfs_end_write_no_snapshoting(root);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
} else {
/*
* will be consistent.
*/
ret = btrfs_orphan_add(trans, inode);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret)
return ret;
err = btrfs_orphan_del(trans, inode);
if (err)
btrfs_abort_transaction(trans, err);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
}
}
void btrfs_evict_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *rsv, *global_rsv;
return;
}
- min_size = btrfs_calc_trunc_metadata_size(root, 1);
+ min_size = btrfs_calc_trunc_metadata_size(fs_info, 1);
evict_inode_truncate_pages(inode);
btrfs_free_io_failure_record(inode, 0, (u64)-1);
- if (test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) {
+ if (test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags)) {
BUG_ON(test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags));
goto no_delete;
goto no_delete;
}
- rsv = btrfs_alloc_block_rsv(root, BTRFS_BLOCK_RSV_TEMP);
+ rsv = btrfs_alloc_block_rsv(fs_info, BTRFS_BLOCK_RSV_TEMP);
if (!rsv) {
btrfs_orphan_del(NULL, inode);
goto no_delete;
}
rsv->size = min_size;
rsv->failfast = 1;
- global_rsv = &root->fs_info->global_block_rsv;
+ global_rsv = &fs_info->global_block_rsv;
btrfs_i_size_write(inode, 0);
* steal_from_global == 3: abandon all hope!
*/
if (steal_from_global > 2) {
- btrfs_warn(root->fs_info,
- "Could not get space for a delete, will truncate on mount %d",
- ret);
+ btrfs_warn(fs_info,
+ "Could not get space for a delete, will truncate on mount %d",
+ ret);
btrfs_orphan_del(NULL, inode);
- btrfs_free_block_rsv(root, rsv);
+ btrfs_free_block_rsv(fs_info, rsv);
goto no_delete;
}
trans = btrfs_join_transaction(root);
if (IS_ERR(trans)) {
btrfs_orphan_del(NULL, inode);
- btrfs_free_block_rsv(root, rsv);
+ btrfs_free_block_rsv(fs_info, rsv);
goto no_delete;
}
* again.
*/
if (steal_from_global) {
- if (!btrfs_check_space_for_delayed_refs(trans, root))
+ if (!btrfs_check_space_for_delayed_refs(trans, fs_info))
ret = btrfs_block_rsv_migrate(global_rsv, rsv,
min_size, 0);
else
* again.
*/
if (ret) {
- ret = btrfs_commit_transaction(trans, root);
+ ret = btrfs_commit_transaction(trans);
if (ret) {
btrfs_orphan_del(NULL, inode);
- btrfs_free_block_rsv(root, rsv);
+ btrfs_free_block_rsv(fs_info, rsv);
goto no_delete;
}
continue;
if (ret != -ENOSPC && ret != -EAGAIN)
break;
- trans->block_rsv = &root->fs_info->trans_block_rsv;
- btrfs_end_transaction(trans, root);
+ trans->block_rsv = &fs_info->trans_block_rsv;
+ btrfs_end_transaction(trans);
trans = NULL;
- btrfs_btree_balance_dirty(root);
+ btrfs_btree_balance_dirty(fs_info);
}
- btrfs_free_block_rsv(root, rsv);
+ btrfs_free_block_rsv(fs_info, rsv);
/*
* Errors here aren't a big deal, it just means we leave orphan items
btrfs_orphan_del(NULL, inode);
}
- trans->block_rsv = &root->fs_info->trans_block_rsv;
- if (!(root == root->fs_info->tree_root ||
+ trans->block_rsv = &fs_info->trans_block_rsv;
+ if (!(root == fs_info->tree_root ||
root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID))
btrfs_return_ino(root, btrfs_ino(inode));
- btrfs_end_transaction(trans, root);
- btrfs_btree_balance_dirty(root);
+ btrfs_end_transaction(trans);
+ btrfs_btree_balance_dirty(fs_info);
no_delete:
btrfs_remove_delayed_node(inode);
clear_inode(inode);
* needs to be changed to reflect the root directory of the tree root. This
* is kind of like crossing a mount point.
*/
-static int fixup_tree_root_location(struct btrfs_root *root,
+static int fixup_tree_root_location(struct btrfs_fs_info *fs_info,
struct inode *dir,
struct dentry *dentry,
struct btrfs_key *location,
key.type = BTRFS_ROOT_REF_KEY;
key.offset = location->objectid;
- ret = btrfs_search_slot(NULL, root->fs_info->tree_root, &key, path,
- 0, 0);
+ ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
if (ret) {
if (ret < 0)
err = ret;
btrfs_release_path(path);
- new_root = btrfs_read_fs_root_no_name(root->fs_info, location);
+ new_root = btrfs_read_fs_root_no_name(fs_info, location);
if (IS_ERR(new_root)) {
err = PTR_ERR(new_root);
goto out;
static void inode_tree_del(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
int empty = 0;
spin_unlock(&root->inode_lock);
if (empty && btrfs_root_refs(&root->root_item) == 0) {
- synchronize_srcu(&root->fs_info->subvol_srcu);
+ synchronize_srcu(&fs_info->subvol_srcu);
spin_lock(&root->inode_lock);
empty = RB_EMPTY_ROOT(&root->inode_tree);
spin_unlock(&root->inode_lock);
void btrfs_invalidate_inodes(struct btrfs_root *root)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct rb_node *node;
struct rb_node *prev;
struct btrfs_inode *entry;
struct inode *inode;
u64 objectid = 0;
- if (!test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ if (!test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
WARN_ON(btrfs_root_refs(&root->root_item) != 0);
spin_lock(&root->inode_lock);
struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct inode *inode;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_root *sub_root = root;
BUG_ON(location.type != BTRFS_ROOT_ITEM_KEY);
- index = srcu_read_lock(&root->fs_info->subvol_srcu);
- ret = fixup_tree_root_location(root, dir, dentry,
+ index = srcu_read_lock(&fs_info->subvol_srcu);
+ ret = fixup_tree_root_location(fs_info, dir, dentry,
&location, &sub_root);
if (ret < 0) {
if (ret != -ENOENT)
} else {
inode = btrfs_iget(dir->i_sb, &location, sub_root, NULL);
}
- srcu_read_unlock(&root->fs_info->subvol_srcu, index);
+ srcu_read_unlock(&fs_info->subvol_srcu, index);
if (!IS_ERR(inode) && root != sub_root) {
- down_read(&root->fs_info->cleanup_work_sem);
+ down_read(&fs_info->cleanup_work_sem);
if (!(inode->i_sb->s_flags & MS_RDONLY))
ret = btrfs_orphan_cleanup(sub_root);
- up_read(&root->fs_info->cleanup_work_sem);
+ up_read(&fs_info->cleanup_work_sem);
if (ret) {
iput(inode);
inode = ERR_PTR(ret);
static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
{
struct inode *inode = file_inode(file);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_item *item;
struct btrfs_dir_item *di;
int slot;
unsigned char d_type;
int over = 0;
- u32 di_cur;
- u32 di_total;
- u32 di_len;
- int key_type = BTRFS_DIR_INDEX_KEY;
char tmp_name[32];
char *name_ptr;
int name_len;
- int is_curr = 0; /* ctx->pos points to the current index? */
- bool emitted;
bool put = false;
-
- /* FIXME, use a real flag for deciding about the key type */
- if (root->fs_info->tree_root == root)
- key_type = BTRFS_DIR_ITEM_KEY;
+ struct btrfs_key location;
if (!dir_emit_dots(file, ctx))
return 0;
path->reada = READA_FORWARD;
- if (key_type == BTRFS_DIR_INDEX_KEY) {
- INIT_LIST_HEAD(&ins_list);
- INIT_LIST_HEAD(&del_list);
- put = btrfs_readdir_get_delayed_items(inode, &ins_list,
- &del_list);
- }
+ INIT_LIST_HEAD(&ins_list);
+ INIT_LIST_HEAD(&del_list);
+ put = btrfs_readdir_get_delayed_items(inode, &ins_list, &del_list);
- key.type = key_type;
+ key.type = BTRFS_DIR_INDEX_KEY;
key.offset = ctx->pos;
key.objectid = btrfs_ino(inode);
if (ret < 0)
goto err;
- emitted = false;
while (1) {
leaf = path->nodes[0];
slot = path->slots[0];
if (found_key.objectid != key.objectid)
break;
- if (found_key.type != key_type)
+ if (found_key.type != BTRFS_DIR_INDEX_KEY)
break;
if (found_key.offset < ctx->pos)
goto next;
- if (key_type == BTRFS_DIR_INDEX_KEY &&
- btrfs_should_delete_dir_index(&del_list,
- found_key.offset))
+ if (btrfs_should_delete_dir_index(&del_list, found_key.offset))
goto next;
ctx->pos = found_key.offset;
- is_curr = 1;
di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item);
- di_cur = 0;
- di_total = btrfs_item_size(leaf, item);
-
- while (di_cur < di_total) {
- struct btrfs_key location;
-
- if (verify_dir_item(root, leaf, di))
- break;
+ if (verify_dir_item(fs_info, leaf, di))
+ goto next;
- name_len = btrfs_dir_name_len(leaf, di);
- if (name_len <= sizeof(tmp_name)) {
- name_ptr = tmp_name;
- } else {
- name_ptr = kmalloc(name_len, GFP_KERNEL);
- if (!name_ptr) {
- ret = -ENOMEM;
- goto err;
- }
+ name_len = btrfs_dir_name_len(leaf, di);
+ if (name_len <= sizeof(tmp_name)) {
+ name_ptr = tmp_name;
+ } else {
+ name_ptr = kmalloc(name_len, GFP_KERNEL);
+ if (!name_ptr) {
+ ret = -ENOMEM;
+ goto err;
}
- read_extent_buffer(leaf, name_ptr,
- (unsigned long)(di + 1), name_len);
-
- d_type = btrfs_filetype_table[btrfs_dir_type(leaf, di)];
- btrfs_dir_item_key_to_cpu(leaf, di, &location);
+ }
+ read_extent_buffer(leaf, name_ptr, (unsigned long)(di + 1),
+ name_len);
+ d_type = btrfs_filetype_table[btrfs_dir_type(leaf, di)];
+ btrfs_dir_item_key_to_cpu(leaf, di, &location);
- /* is this a reference to our own snapshot? If so
- * skip it.
- *
- * In contrast to old kernels, we insert the snapshot's
- * dir item and dir index after it has been created, so
- * we won't find a reference to our own snapshot. We
- * still keep the following code for backward
- * compatibility.
- */
- if (location.type == BTRFS_ROOT_ITEM_KEY &&
- location.objectid == root->root_key.objectid) {
- over = 0;
- goto skip;
- }
- over = !dir_emit(ctx, name_ptr, name_len,
- location.objectid, d_type);
+ over = !dir_emit(ctx, name_ptr, name_len, location.objectid,
+ d_type);
-skip:
- if (name_ptr != tmp_name)
- kfree(name_ptr);
+ if (name_ptr != tmp_name)
+ kfree(name_ptr);
- if (over)
- goto nopos;
- emitted = true;
- di_len = btrfs_dir_name_len(leaf, di) +
- btrfs_dir_data_len(leaf, di) + sizeof(*di);
- di_cur += di_len;
- di = (struct btrfs_dir_item *)((char *)di + di_len);
- }
+ if (over)
+ goto nopos;
+ ctx->pos++;
next:
path->slots[0]++;
}
- if (key_type == BTRFS_DIR_INDEX_KEY) {
- if (is_curr)
- ctx->pos++;
- ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list, &emitted);
- if (ret)
- goto nopos;
- }
-
- /*
- * If we haven't emitted any dir entry, we must not touch ctx->pos as
- * it was was set to the termination value in previous call. We assume
- * that "." and ".." were emitted if we reach this point and set the
- * termination value as well for an empty directory.
- */
- if (ctx->pos > 2 && !emitted)
+ ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list);
+ if (ret)
goto nopos;
- /* Reached end of directory/root. Bump pos past the last item. */
- ctx->pos++;
-
/*
* Stop new entries from being returned after we return the last
* entry.
* last entry requires it because doing so has broken 32bit apps
* in the past.
*/
- if (key_type == BTRFS_DIR_INDEX_KEY) {
- if (ctx->pos >= INT_MAX)
- ctx->pos = LLONG_MAX;
- else
- ctx->pos = INT_MAX;
- }
+ if (ctx->pos >= INT_MAX)
+ ctx->pos = LLONG_MAX;
+ else
+ ctx->pos = INT_MAX;
nopos:
ret = 0;
err:
trans = btrfs_join_transaction(root);
if (IS_ERR(trans))
return PTR_ERR(trans);
- ret = btrfs_commit_transaction(trans, root);
+ ret = btrfs_commit_transaction(trans);
}
return ret;
}
*/
static int btrfs_dirty_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
int ret;
ret = btrfs_update_inode(trans, root, inode);
if (ret && ret == -ENOSPC) {
/* whoops, lets try again with the full transaction */
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans))
return PTR_ERR(trans);
ret = btrfs_update_inode(trans, root, inode);
}
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (BTRFS_I(inode)->delayed_node)
- btrfs_balance_delayed_items(root);
+ btrfs_balance_delayed_items(fs_info);
return ret;
}
u64 ref_objectid, u64 objectid,
umode_t mode, u64 *index)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
struct inode *inode;
struct btrfs_inode_item *inode_item;
struct btrfs_key *location;
if (!path)
return ERR_PTR(-ENOMEM);
- inode = new_inode(root->fs_info->sb);
+ inode = new_inode(fs_info->sb);
if (!inode) {
btrfs_free_path(path);
return ERR_PTR(-ENOMEM);
inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
- memset_extent_buffer(path->nodes[0], 0, (unsigned long)inode_item,
+ memzero_extent_buffer(path->nodes[0], (unsigned long)inode_item,
sizeof(*inode_item));
fill_inode_item(trans, path->nodes[0], inode_item, inode);
btrfs_inherit_iflags(inode, dir);
if (S_ISREG(mode)) {
- if (btrfs_test_opt(root->fs_info, NODATASUM))
+ if (btrfs_test_opt(fs_info, NODATASUM))
BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM;
- if (btrfs_test_opt(root->fs_info, NODATACOW))
+ if (btrfs_test_opt(fs_info, NODATACOW))
BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW |
BTRFS_INODE_NODATASUM;
}
ret = btrfs_inode_inherit_props(trans, inode, dir);
if (ret)
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"error inheriting props for ino %llu (root %llu): %d",
btrfs_ino(inode), root->root_key.objectid, ret);
struct inode *parent_inode, struct inode *inode,
const char *name, int name_len, int add_backref, u64 index)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret = 0;
struct btrfs_key key;
struct btrfs_root *root = BTRFS_I(parent_inode)->root;
}
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
- ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
- key.objectid, root->root_key.objectid,
- parent_ino, index, name, name_len);
+ ret = btrfs_add_root_ref(trans, fs_info, key.objectid,
+ root->root_key.objectid, parent_ino,
+ index, name, name_len);
} else if (add_backref) {
ret = btrfs_insert_inode_ref(trans, root, name, name_len, ino,
parent_ino, index);
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
u64 local_index;
int err;
- err = btrfs_del_root_ref(trans, root->fs_info->tree_root,
- key.objectid, root->root_key.objectid,
- parent_ino, &local_index, name, name_len);
+ err = btrfs_del_root_ref(trans, fs_info, key.objectid,
+ root->root_key.objectid, parent_ino,
+ &local_index, name, name_len);
} else if (add_backref) {
u64 local_index;
static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
umode_t mode, dev_t rdev)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct inode *inode = NULL;
}
out_unlock:
- btrfs_end_transaction(trans, root);
- btrfs_balance_delayed_items(root);
- btrfs_btree_balance_dirty(root);
+ btrfs_end_transaction(trans);
+ btrfs_balance_delayed_items(fs_info);
+ btrfs_btree_balance_dirty(fs_info);
if (drop_inode) {
inode_dec_link_count(inode);
iput(inode);
static int btrfs_create(struct inode *dir, struct dentry *dentry,
umode_t mode, bool excl)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct inode *inode = NULL;
d_instantiate(dentry, inode);
out_unlock:
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (err && drop_inode_on_err) {
inode_dec_link_count(inode);
iput(inode);
}
- btrfs_balance_delayed_items(root);
- btrfs_btree_balance_dirty(root);
+ btrfs_balance_delayed_items(fs_info);
+ btrfs_btree_balance_dirty(fs_info);
return err;
out_unlock_inode:
struct btrfs_trans_handle *trans = NULL;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct inode *inode = d_inode(old_dentry);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 index;
int err;
int drop_inode = 0;
btrfs_log_new_name(trans, inode, NULL, parent);
}
- btrfs_balance_delayed_items(root);
+ btrfs_balance_delayed_items(fs_info);
fail:
if (trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (drop_inode) {
inode_dec_link_count(inode);
iput(inode);
}
- btrfs_btree_balance_dirty(root);
+ btrfs_btree_balance_dirty(fs_info);
return err;
}
static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct inode *inode = NULL;
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
drop_on_err = 0;
out_fail:
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (drop_on_err) {
inode_dec_link_count(inode);
iput(inode);
}
- btrfs_balance_delayed_items(root);
- btrfs_btree_balance_dirty(root);
+ btrfs_balance_delayed_items(fs_info);
+ btrfs_btree_balance_dirty(fs_info);
return err;
out_fail_inode:
size_t pg_offset, u64 start, u64 len,
int create)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
int err = 0;
u64 extent_start = 0;
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, start, len);
if (em)
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
read_unlock(&em_tree->lock);
if (em) {
err = -ENOMEM;
goto out;
}
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
em->start = EXTENT_MAP_HOLE;
em->orig_start = EXTENT_MAP_HOLE;
em->len = (u64)-1;
} else if (found_type == BTRFS_FILE_EXTENT_INLINE) {
size_t size;
size = btrfs_file_extent_inline_len(leaf, path->slots[0], item);
- extent_end = ALIGN(extent_start + size, root->sectorsize);
+ extent_end = ALIGN(extent_start + size,
+ fs_info->sectorsize);
}
next:
if (start >= extent_end) {
copy_size = min_t(u64, PAGE_SIZE - pg_offset,
size - extent_offset);
em->start = extent_start + extent_offset;
- em->len = ALIGN(copy_size, root->sectorsize);
+ em->len = ALIGN(copy_size, fs_info->sectorsize);
em->orig_block_len = em->len;
em->orig_start = em->start;
ptr = btrfs_file_extent_inline_start(item) + extent_offset;
insert:
btrfs_release_path(path);
if (em->start > start || extent_map_end(em) <= start) {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"bad extent! em: [%llu %llu] passed [%llu %llu]",
em->start, em->len, start, len);
err = -EIO;
* extent causing the -EEXIST.
*/
if (existing->start == em->start &&
- extent_map_end(existing) == extent_map_end(em) &&
+ extent_map_end(existing) >= extent_map_end(em) &&
em->block_start == existing->block_start) {
/*
- * these two extents are the same, it happens
- * with inlines especially
+ * The existing extent map already encompasses the
+ * entire extent map we tried to add.
*/
free_extent_map(em);
em = existing;
btrfs_free_path(path);
if (trans) {
- ret = btrfs_end_transaction(trans, root);
+ ret = btrfs_end_transaction(trans);
if (!err)
err = ret;
}
static struct extent_map *btrfs_new_extent_direct(struct inode *inode,
u64 start, u64 len)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_map *em;
struct btrfs_key ins;
int ret;
alloc_hint = get_extent_allocation_hint(inode, start, len);
- ret = btrfs_reserve_extent(root, len, len, root->sectorsize, 0,
- alloc_hint, &ins, 1, 1);
+ ret = btrfs_reserve_extent(root, len, len, fs_info->sectorsize,
+ 0, alloc_hint, &ins, 1, 1);
if (ret)
return ERR_PTR(ret);
em = btrfs_create_dio_extent(inode, start, ins.offset, start,
ins.objectid, ins.offset, ins.offset,
ins.offset, 0);
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
if (IS_ERR(em))
- btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1);
+ btrfs_free_reserved_extent(fs_info, ins.objectid,
+ ins.offset, 1);
return em;
}
u64 *orig_start, u64 *orig_block_len,
u64 *ram_bytes)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_path *path;
int ret;
*ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi);
}
- if (btrfs_extent_readonly(root, disk_bytenr))
+ if (btrfs_extent_readonly(fs_info, disk_bytenr))
goto out;
num_bytes = min(offset + *len, extent_end) - offset;
if (!nocow && found_type == BTRFS_FILE_EXTENT_PREALLOC) {
u64 range_end;
- range_end = round_up(offset + num_bytes, root->sectorsize) - 1;
+ range_end = round_up(offset + num_bytes,
+ root->fs_info->sectorsize) - 1;
ret = test_range_bit(io_tree, offset, range_end,
EXTENT_DELALLOC, 0, NULL);
if (ret) {
ret = btrfs_cross_ref_exist(trans, root, btrfs_ino(inode),
key.offset - backref_offset, disk_bytenr);
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret) {
ret = 0;
goto out;
*/
disk_bytenr += backref_offset;
disk_bytenr += offset - key.offset;
- if (csum_exist_in_range(root, disk_bytenr, num_bytes))
- goto out;
+ if (csum_exist_in_range(fs_info, disk_bytenr, num_bytes))
+ goto out;
/*
* all of the above have passed, it is safe to overwrite this extent
* without cow
static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map *em;
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_state *cached_state = NULL;
struct btrfs_dio_data *dio_data = NULL;
u64 start = iblock << inode->i_blkbits;
if (create)
unlock_bits |= EXTENT_DIRTY;
else
- len = min_t(u64, len, root->sectorsize);
+ len = min_t(u64, len, fs_info->sectorsize);
lockstart = start;
lockend = start + len - 1;
if (can_nocow_extent(inode, start, &len, &orig_start,
&orig_block_len, &ram_bytes) == 1 &&
- btrfs_inc_nocow_writers(root->fs_info, block_start)) {
+ btrfs_inc_nocow_writers(fs_info, block_start)) {
struct extent_map *em2;
em2 = btrfs_create_dio_extent(inode, start, len,
orig_start, block_start,
len, orig_block_len,
ram_bytes, type);
- btrfs_dec_nocow_writers(root->fs_info, block_start);
+ btrfs_dec_nocow_writers(fs_info, block_start);
if (type == BTRFS_ORDERED_PREALLOC) {
free_extent_map(em);
em = em2;
static inline int submit_dio_repair_bio(struct inode *inode, struct bio *bio,
int mirror_num)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
int ret;
BUG_ON(bio_op(bio) == REQ_OP_WRITE);
bio_get(bio);
- ret = btrfs_bio_wq_end_io(root->fs_info, bio,
- BTRFS_WQ_ENDIO_DIO_REPAIR);
+ ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DIO_REPAIR);
if (ret)
goto err;
- ret = btrfs_map_bio(root, bio, mirror_num, 0);
+ ret = btrfs_map_bio(fs_info, bio, mirror_num, 0);
err:
bio_put(bio);
return ret;
struct io_failure_record *failrec;
struct bio *bio;
int isector;
- int read_mode;
+ int read_mode = 0;
int ret;
BUG_ON(bio_op(failed_bio) == REQ_OP_WRITE);
if ((failed_bio->bi_vcnt > 1)
|| (failed_bio->bi_io_vec->bv_len
- > BTRFS_I(inode)->root->sectorsize))
- read_mode = READ_SYNC | REQ_FAILFAST_DEV;
- else
- read_mode = READ_SYNC;
+ > btrfs_inode_sectorsize(inode)))
+ read_mode |= REQ_FAILFAST_DEV;
isector = start - btrfs_io_bio(failed_bio)->logical;
isector >>= inode->i_sb->s_blocksize_bits;
ASSERT(bio->bi_vcnt == 1);
inode = bio->bi_io_vec->bv_page->mapping->host;
- ASSERT(bio->bi_io_vec->bv_len == BTRFS_I(inode)->root->sectorsize);
+ ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
done->uptodate = 1;
bio_for_each_segment_all(bvec, bio, i)
int ret;
fs_info = BTRFS_I(inode)->root->fs_info;
- sectorsize = BTRFS_I(inode)->root->sectorsize;
+ sectorsize = fs_info->sectorsize;
start = io_bio->logical;
done.inode = inode;
ASSERT(bio->bi_vcnt == 1);
inode = bio->bi_io_vec->bv_page->mapping->host;
- ASSERT(bio->bi_io_vec->bv_len == BTRFS_I(inode)->root->sectorsize);
+ ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
bio_for_each_segment_all(bvec, bio, i) {
ret = __readpage_endio_check(done->inode, io_bio, i,
int ret;
fs_info = BTRFS_I(inode)->root->fs_info;
- sectorsize = BTRFS_I(inode)->root->sectorsize;
+ sectorsize = fs_info->sectorsize;
err = 0;
start = io_bio->logical;
const u64 bytes,
const int uptodate)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_extent *ordered = NULL;
u64 ordered_offset = offset;
u64 ordered_bytes = bytes;
btrfs_init_work(&ordered->work, btrfs_endio_write_helper,
finish_ordered_fn, NULL, NULL);
- btrfs_queue_work(root->fs_info->endio_write_workers,
- &ordered->work);
+ btrfs_queue_work(fs_info->endio_write_workers, &ordered->work);
out_test:
/*
* our bio might span multiple ordered extents. If we haven't
unsigned long bio_flags, u64 offset)
{
int ret;
- struct btrfs_root *root = BTRFS_I(inode)->root;
- ret = btrfs_csum_one_bio(root, inode, bio, offset, 1);
+ ret = btrfs_csum_one_bio(inode, bio, offset, 1);
BUG_ON(ret); /* -ENOMEM */
return 0;
}
return bio;
}
-static inline int btrfs_lookup_and_bind_dio_csum(struct btrfs_root *root,
- struct inode *inode,
+static inline int btrfs_lookup_and_bind_dio_csum(struct inode *inode,
struct btrfs_dio_private *dip,
struct bio *bio,
u64 file_offset)
* contention.
*/
if (dip->logical_offset == file_offset) {
- ret = btrfs_lookup_bio_sums_dio(root, inode, dip->orig_bio,
+ ret = btrfs_lookup_bio_sums_dio(inode, dip->orig_bio,
file_offset);
if (ret)
return ret;
u64 file_offset, int skip_sum,
int async_submit)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_dio_private *dip = bio->bi_private;
bool write = bio_op(bio) == REQ_OP_WRITE;
- struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
if (async_submit)
bio_get(bio);
if (!write) {
- ret = btrfs_bio_wq_end_io(root->fs_info, bio,
- BTRFS_WQ_ENDIO_DATA);
+ ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA);
if (ret)
goto err;
}
goto map;
if (write && async_submit) {
- ret = btrfs_wq_submit_bio(root->fs_info,
- inode, bio, 0, 0, file_offset,
- __btrfs_submit_bio_start_direct_io,
- __btrfs_submit_bio_done);
+ ret = btrfs_wq_submit_bio(fs_info, inode, bio, 0, 0,
+ file_offset,
+ __btrfs_submit_bio_start_direct_io,
+ __btrfs_submit_bio_done);
goto err;
} else if (write) {
/*
* If we aren't doing async submit, calculate the csum of the
* bio now.
*/
- ret = btrfs_csum_one_bio(root, inode, bio, file_offset, 1);
+ ret = btrfs_csum_one_bio(inode, bio, file_offset, 1);
if (ret)
goto err;
} else {
- ret = btrfs_lookup_and_bind_dio_csum(root, inode, dip, bio,
+ ret = btrfs_lookup_and_bind_dio_csum(inode, dip, bio,
file_offset);
if (ret)
goto err;
}
map:
- ret = btrfs_map_bio(root, bio, 0, async_submit);
+ ret = btrfs_map_bio(fs_info, bio, 0, async_submit);
err:
bio_put(bio);
return ret;
int skip_sum)
{
struct inode *inode = dip->inode;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct bio *bio;
struct bio *orig_bio = dip->orig_bio;
- struct bio_vec *bvec = orig_bio->bi_io_vec;
+ struct bio_vec *bvec;
u64 start_sector = orig_bio->bi_iter.bi_sector;
u64 file_offset = dip->logical_offset;
u64 submit_len = 0;
u64 map_length;
- u32 blocksize = root->sectorsize;
+ u32 blocksize = fs_info->sectorsize;
int async_submit = 0;
int nr_sectors;
int ret;
- int i;
+ int i, j;
map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(root->fs_info, bio_op(orig_bio),
- start_sector << 9, &map_length, NULL, 0);
+ ret = btrfs_map_block(fs_info, btrfs_op(orig_bio), start_sector << 9,
+ &map_length, NULL, 0);
if (ret)
return -EIO;
if (!bio)
return -ENOMEM;
- bio_set_op_attrs(bio, bio_op(orig_bio), bio_flags(orig_bio));
+ bio->bi_opf = orig_bio->bi_opf;
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
btrfs_io_bio(bio)->logical = file_offset;
atomic_inc(&dip->pending_bios);
- while (bvec <= (orig_bio->bi_io_vec + orig_bio->bi_vcnt - 1)) {
- nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, bvec->bv_len);
+ bio_for_each_segment_all(bvec, orig_bio, j) {
+ nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec->bv_len);
i = 0;
next_block:
if (unlikely(map_length < submit_len + blocksize ||
start_sector, GFP_NOFS);
if (!bio)
goto out_err;
- bio_set_op_attrs(bio, bio_op(orig_bio),
- bio_flags(orig_bio));
+ bio->bi_opf = orig_bio->bi_opf;
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
btrfs_io_bio(bio)->logical = file_offset;
map_length = orig_bio->bi_iter.bi_size;
- ret = btrfs_map_block(root->fs_info, bio_op(orig_bio),
+ ret = btrfs_map_block(fs_info, btrfs_op(orig_bio),
start_sector << 9,
&map_length, NULL, 0);
if (ret) {
i++;
goto next_block;
}
- bvec++;
}
}
kfree(dip);
}
-static ssize_t check_direct_IO(struct btrfs_root *root, struct kiocb *iocb,
- const struct iov_iter *iter, loff_t offset)
+static ssize_t check_direct_IO(struct btrfs_fs_info *fs_info,
+ struct kiocb *iocb,
+ const struct iov_iter *iter, loff_t offset)
{
int seg;
int i;
- unsigned blocksize_mask = root->sectorsize - 1;
+ unsigned int blocksize_mask = fs_info->sectorsize - 1;
ssize_t retval = -EINVAL;
if (offset & blocksize_mask)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_dio_data dio_data = { 0 };
loff_t offset = iocb->ki_pos;
size_t count = 0;
bool relock = false;
ssize_t ret;
- if (check_direct_IO(BTRFS_I(inode)->root, iocb, iter, offset))
+ if (check_direct_IO(fs_info, iocb, iter, offset))
return 0;
inode_dio_begin(inode);
* do the accounting properly if we go over the number we
* originally calculated. Abuse current->journal_info for this.
*/
- dio_data.reserve = round_up(count, root->sectorsize);
+ dio_data.reserve = round_up(count,
+ fs_info->sectorsize);
dio_data.unsubmitted_oe_range_start = (u64)offset;
dio_data.unsubmitted_oe_range_end = (u64)offset;
current->journal_info = &dio_data;
}
ret = __blockdev_direct_IO(iocb, inode,
- BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev,
+ fs_info->fs_devices->latest_bdev,
iter, btrfs_get_blocks_direct, NULL,
btrfs_submit_direct, flags);
if (iov_iter_rw(iter) == WRITE) {
{
struct page *page = vmf->page;
struct inode *inode = file_inode(vma->vm_file);
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
}
if (page->index == ((size - 1) >> PAGE_SHIFT)) {
- reserved_space = round_up(size - page_start, root->sectorsize);
+ reserved_space = round_up(size - page_start,
+ fs_info->sectorsize);
if (reserved_space < PAGE_SIZE) {
end = page_start + reserved_space - 1;
spin_lock(&BTRFS_I(inode)->lock);
set_page_dirty(page);
SetPageUptodate(page);
- BTRFS_I(inode)->last_trans = root->fs_info->generation;
+ BTRFS_I(inode)->last_trans = fs_info->generation;
BTRFS_I(inode)->last_sub_trans = BTRFS_I(inode)->root->log_transid;
BTRFS_I(inode)->last_log_commit = BTRFS_I(inode)->root->last_log_commit;
static int btrfs_truncate(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *rsv;
int ret = 0;
int err = 0;
struct btrfs_trans_handle *trans;
- u64 mask = root->sectorsize - 1;
- u64 min_size = btrfs_calc_trunc_metadata_size(root, 1);
+ u64 mask = fs_info->sectorsize - 1;
+ u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1);
ret = btrfs_wait_ordered_range(inode, inode->i_size & (~mask),
(u64)-1);
* 3) fs_info->trans_block_rsv - this will have 1 items worth left for
* updating the inode.
*/
- rsv = btrfs_alloc_block_rsv(root, BTRFS_BLOCK_RSV_TEMP);
+ rsv = btrfs_alloc_block_rsv(fs_info, BTRFS_BLOCK_RSV_TEMP);
if (!rsv)
return -ENOMEM;
rsv->size = min_size;
}
/* Migrate the slack space for the truncate to our reserve */
- ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv,
+ ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv,
min_size, 0);
BUG_ON(ret);
break;
}
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
ret = btrfs_update_inode(trans, root, inode);
if (ret) {
err = ret;
break;
}
- btrfs_end_transaction(trans, root);
- btrfs_btree_balance_dirty(root);
+ btrfs_end_transaction(trans);
+ btrfs_btree_balance_dirty(fs_info);
trans = btrfs_start_transaction(root, 2);
if (IS_ERR(trans)) {
break;
}
- ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv,
+ ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv,
rsv, min_size, 0);
BUG_ON(ret); /* shouldn't happen */
trans->block_rsv = rsv;
}
if (trans) {
- trans->block_rsv = &root->fs_info->trans_block_rsv;
+ trans->block_rsv = &fs_info->trans_block_rsv;
ret = btrfs_update_inode(trans, root, inode);
if (ret && !err)
err = ret;
- ret = btrfs_end_transaction(trans, root);
- btrfs_btree_balance_dirty(root);
+ ret = btrfs_end_transaction(trans);
+ btrfs_btree_balance_dirty(fs_info);
}
out:
- btrfs_free_block_rsv(root, rsv);
+ btrfs_free_block_rsv(fs_info, rsv);
if (ret && !err)
err = ret;
void btrfs_destroy_inode(struct inode *inode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_ordered_extent *ordered;
struct btrfs_root *root = BTRFS_I(inode)->root;
if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags)) {
- btrfs_info(root->fs_info, "inode %llu still on the orphan list",
- btrfs_ino(inode));
+ btrfs_info(fs_info, "inode %llu still on the orphan list",
+ btrfs_ino(inode));
atomic_dec(&root->orphan_inodes);
}
if (!ordered)
break;
else {
- btrfs_err(root->fs_info,
+ btrfs_err(fs_info,
"found ordered extent %llu %llu on inode cleanup",
ordered->file_offset, ordered->len);
btrfs_remove_ordered_extent(inode, ordered);
struct inode *new_dir,
struct dentry *new_dentry)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(old_dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(old_dir)->root;
struct btrfs_root *dest = BTRFS_I(new_dir)->root;
/* close the race window with snapshot create/destroy ioctl */
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- down_read(&root->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
if (new_ino == BTRFS_FIRST_FREE_OBJECTID)
- down_read(&dest->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
/*
* We want to reserve the absolute worst case amount of items. So if
/* Reference for the source. */
if (old_ino == BTRFS_FIRST_FREE_OBJECTID) {
/* force full log commit if subvolume involved. */
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
} else {
btrfs_pin_log_trans(root);
root_log_pinned = true;
/* And now for the dest. */
if (new_ino == BTRFS_FIRST_FREE_OBJECTID) {
/* force full log commit if subvolume involved. */
- btrfs_set_log_full_commit(dest->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
} else {
btrfs_pin_log_trans(dest);
dest_log_pinned = true;
* allow the tasks to sync it.
*/
if (ret && (root_log_pinned || dest_log_pinned)) {
- if (btrfs_inode_in_log(old_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(new_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(old_inode, root->fs_info->generation) ||
+ if (btrfs_inode_in_log(old_dir, fs_info->generation) ||
+ btrfs_inode_in_log(new_dir, fs_info->generation) ||
+ btrfs_inode_in_log(old_inode, fs_info->generation) ||
(new_inode &&
- btrfs_inode_in_log(new_inode, root->fs_info->generation)))
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_inode_in_log(new_inode, fs_info->generation)))
+ btrfs_set_log_full_commit(fs_info, trans);
if (root_log_pinned) {
btrfs_end_log_trans(root);
dest_log_pinned = false;
}
}
- ret = btrfs_end_transaction(trans, root);
+ ret = btrfs_end_transaction(trans);
out_notrans:
if (new_ino == BTRFS_FIRST_FREE_OBJECTID)
- up_read(&dest->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- up_read(&root->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
return ret;
}
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(old_dir->i_sb);
struct btrfs_trans_handle *trans;
unsigned int trans_num_items;
struct btrfs_root *root = BTRFS_I(old_dir)->root;
/* close the racy window with snapshot create/destroy ioctl */
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- down_read(&root->fs_info->subvol_sem);
+ down_read(&fs_info->subvol_sem);
/*
* We want to reserve the absolute worst case amount of items. So if
* both inodes are subvols and we need to unlink them then that would
BTRFS_I(old_inode)->dir_index = 0ULL;
if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
/* force full log commit if subvolume involved. */
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_set_log_full_commit(fs_info, trans);
} else {
btrfs_pin_log_trans(root);
log_pinned = true;
* allow the tasks to sync it.
*/
if (ret && log_pinned) {
- if (btrfs_inode_in_log(old_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(new_dir, root->fs_info->generation) ||
- btrfs_inode_in_log(old_inode, root->fs_info->generation) ||
+ if (btrfs_inode_in_log(old_dir, fs_info->generation) ||
+ btrfs_inode_in_log(new_dir, fs_info->generation) ||
+ btrfs_inode_in_log(old_inode, fs_info->generation) ||
(new_inode &&
- btrfs_inode_in_log(new_inode, root->fs_info->generation)))
- btrfs_set_log_full_commit(root->fs_info, trans);
+ btrfs_inode_in_log(new_inode, fs_info->generation)))
+ btrfs_set_log_full_commit(fs_info, trans);
btrfs_end_log_trans(root);
log_pinned = false;
}
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
out_notrans:
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
- up_read(&root->fs_info->subvol_sem);
+ up_read(&fs_info->subvol_sem);
return ret;
}
int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
{
+ struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
return -EROFS;
ret = __start_delalloc_inodes(root, delay_iput, -1);
* we have to make sure the IO is actually started and that
* ordered extents get created before we return
*/
- atomic_inc(&root->fs_info->async_submit_draining);
- while (atomic_read(&root->fs_info->nr_async_submits) ||
- atomic_read(&root->fs_info->async_delalloc_pages)) {
- wait_event(root->fs_info->async_submit_wait,
- (atomic_read(&root->fs_info->nr_async_submits) == 0 &&
- atomic_read(&root->fs_info->async_delalloc_pages) == 0));
- }
- atomic_dec(&root->fs_info->async_submit_draining);
+ atomic_inc(&fs_info->async_submit_draining);
+ while (atomic_read(&fs_info->nr_async_submits) ||
+ atomic_read(&fs_info->async_delalloc_pages)) {
+ wait_event(fs_info->async_submit_wait,
+ (atomic_read(&fs_info->nr_async_submits) == 0 &&
+ atomic_read(&fs_info->async_delalloc_pages) == 0));
+ }
+ atomic_dec(&fs_info->async_submit_draining);
return ret;
}
static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
const char *symname)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct btrfs_path *path;
struct extent_buffer *leaf;
name_len = strlen(symname);
- if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root))
+ if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info))
return -ENAMETOOLONG;
/*
d_instantiate(dentry, inode);
out_unlock:
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (drop_inode) {
inode_dec_link_count(inode);
iput(inode);
}
- btrfs_btree_balance_dirty(root);
+ btrfs_btree_balance_dirty(fs_info);
return err;
out_unlock_inode:
loff_t actual_len, u64 *alloc_hint,
struct btrfs_trans_handle *trans)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em;
struct btrfs_root *root = BTRFS_I(inode)->root;
min_size, 0, *alloc_hint, &ins, 1, 0);
if (ret) {
if (own_trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
break;
}
- btrfs_dec_block_group_reservations(root->fs_info, ins.objectid);
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
last_alloc = ins.offset;
ret = insert_reserved_file_extent(trans, inode,
ins.offset, 0, 0, 0,
BTRFS_FILE_EXTENT_PREALLOC);
if (ret) {
- btrfs_free_reserved_extent(root, ins.objectid,
+ btrfs_free_reserved_extent(fs_info, ins.objectid,
ins.offset, 0);
btrfs_abort_transaction(trans, ret);
if (own_trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
break;
}
em->block_len = ins.offset;
em->orig_block_len = ins.offset;
em->ram_bytes = ins.offset;
- em->bdev = root->fs_info->fs_devices->latest_bdev;
+ em->bdev = fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PREALLOC, &em->flags);
em->generation = trans->transid;
if (ret) {
btrfs_abort_transaction(trans, ret);
if (own_trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
break;
}
if (own_trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
}
if (cur_offset < end)
btrfs_free_reserved_data_space(inode, cur_offset,
static int btrfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct inode *inode = NULL;
mark_inode_dirty(inode);
out:
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret)
iput(inode);
- btrfs_balance_delayed_items(root);
- btrfs_btree_balance_dirty(root);
+ btrfs_balance_delayed_items(fs_info);
+ btrfs_btree_balance_dirty(fs_info);
return ret;
out_inode:
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
- .readlink = generic_readlink,
.get_link = page_get_link,
.getattr = btrfs_getattr,
.setattr = btrfs_setattr,
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