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WSL2-Linux-Kernel
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btrfs: make btrfs_truncate_block take btrfs_inode 

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2020-11-02 16:49:03 +02:00 коммит произвёл David Sterba
Родитель 03fcb1ab6f
Коммит 217f42eb3d
3 изменённых файлов: 37 добавлений и 36 удалений
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4
fs/btrfs/ctree.h
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@ -3068,8 +3068,8 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
struct btrfs_inode *parent_inode, struct btrfs_inode *inode,
const char *name, int name_len, int add_backref, u64 index);
int btrfs_delete_subvolume(struct inode *dir, struct dentry *dentry);
int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
int front);
int btrfs_truncate_block(struct btrfs_inode *inode, loff_t from, loff_t len,
int front);
int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_inode *inode, u64 new_size,

17
fs/btrfs/file.c
Просмотреть файл

@ -2899,7 +2899,8 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
if (same_block && len < fs_info->sectorsize) {
if (offset < ino_size) {
truncated_block = true;
ret = btrfs_truncate_block(inode, offset, len, 0);
ret = btrfs_truncate_block(BTRFS_I(inode), offset, len,
0);
} else {
ret = 0;
}
@ -2909,7 +2910,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
/* zero back part of the first block */
if (offset < ino_size) {
truncated_block = true;
ret = btrfs_truncate_block(inode, offset, 0, 0);
ret = btrfs_truncate_block(BTRFS_I(inode), offset, 0, 0);
if (ret) {
inode_unlock(inode);
return ret;
@ -2945,7 +2946,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
/* zero the front end of the last page */
if (tail_start + tail_len < ino_size) {
truncated_block = true;
ret = btrfs_truncate_block(inode,
ret = btrfs_truncate_block(BTRFS_I(inode),
tail_start + tail_len,
0, 1);
if (ret)
@ -3187,7 +3188,8 @@ static int btrfs_zero_range(struct inode *inode,
}
if (len < sectorsize && em->block_start != EXTENT_MAP_HOLE) {
free_extent_map(em);
ret = btrfs_truncate_block(inode, offset, len, 0);
ret = btrfs_truncate_block(BTRFS_I(inode), offset, len,
0);
if (!ret)
ret = btrfs_fallocate_update_isize(inode,
offset + len,
@ -3218,7 +3220,7 @@ static int btrfs_zero_range(struct inode *inode,
alloc_start = round_down(offset, sectorsize);
ret = 0;
} else if (ret == RANGE_BOUNDARY_WRITTEN_EXTENT) {
ret = btrfs_truncate_block(inode, offset, 0, 0);
ret = btrfs_truncate_block(BTRFS_I(inode), offset, 0, 0);
if (ret)
goto out;
} else {
@ -3235,7 +3237,8 @@ static int btrfs_zero_range(struct inode *inode,
alloc_end = round_up(offset + len, sectorsize);
ret = 0;
} else if (ret == RANGE_BOUNDARY_WRITTEN_EXTENT) {
ret = btrfs_truncate_block(inode, offset + len, 0, 1);
ret = btrfs_truncate_block(BTRFS_I(inode), offset + len,
0, 1);
if (ret)
goto out;
} else {
@ -3355,7 +3358,7 @@ static long btrfs_fallocate(struct file *file, int mode,
* need to zero out the end of the block if i_size lands in the
* middle of a block.
*/
ret = btrfs_truncate_block(inode, inode->i_size, 0, 0);
ret = btrfs_truncate_block(BTRFS_I(inode), inode->i_size, 0, 0);
if (ret)
goto out;
}

52
fs/btrfs/inode.c
Просмотреть файл

@ -4655,12 +4655,12 @@ out:
* This will find the block for the "from" offset and cow the block and zero the
* part we want to zero. This is used with truncate and hole punching.
*/
int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
int front)
int btrfs_truncate_block(struct btrfs_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 extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_fs_info *fs_info = inode->root->fs_info;
struct address_space *mapping = inode->vfs_inode.i_mapping;
struct extent_io_tree *io_tree = &inode->io_tree;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
struct extent_changeset *data_reserved = NULL;
@ -4683,30 +4683,29 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
block_start = round_down(from, blocksize);
block_end = block_start + blocksize - 1;
ret = btrfs_check_data_free_space(BTRFS_I(inode), &data_reserved,
block_start, blocksize);
ret = btrfs_check_data_free_space(inode, &data_reserved, block_start,
blocksize);
if (ret < 0) {
if (btrfs_check_nocow_lock(BTRFS_I(inode), block_start,
&write_bytes) > 0) {
if (btrfs_check_nocow_lock(inode, block_start, &write_bytes) > 0) {
/* For nocow case, no need to reserve data space */
only_release_metadata = true;
} else {
goto out;
}
}
ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode), blocksize);
ret = btrfs_delalloc_reserve_metadata(inode, blocksize);
if (ret < 0) {
if (!only_release_metadata)
btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, block_start, blocksize);
btrfs_free_reserved_data_space(inode, data_reserved,
block_start, blocksize);
goto out;
}
again:
page = find_or_create_page(mapping, index, mask);
if (!page) {
btrfs_delalloc_release_space(BTRFS_I(inode), data_reserved,
block_start, blocksize, true);
btrfs_delalloc_release_extents(BTRFS_I(inode), blocksize);
btrfs_delalloc_release_space(inode, data_reserved, block_start,
blocksize, true);
btrfs_delalloc_release_extents(inode, blocksize);
ret = -ENOMEM;
goto out;
}
@ -4729,7 +4728,7 @@ again:
lock_extent_bits(io_tree, block_start, block_end, &cached_state);
set_page_extent_mapped(page);
ordered = btrfs_lookup_ordered_extent(BTRFS_I(inode), block_start);
ordered = btrfs_lookup_ordered_extent(inode, block_start);
if (ordered) {
unlock_extent_cached(io_tree, block_start, block_end,
&cached_state);
@ -4740,11 +4739,11 @@ again:
goto again;
}
clear_extent_bit(&BTRFS_I(inode)->io_tree, block_start, block_end,
clear_extent_bit(&inode->io_tree, block_start, block_end,
EXTENT_DELALLOC | EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG,
0, 0, &cached_state);
ret = btrfs_set_extent_delalloc(BTRFS_I(inode), block_start, block_end, 0,
ret = btrfs_set_extent_delalloc(inode, block_start, block_end, 0,
&cached_state);
if (ret) {
unlock_extent_cached(io_tree, block_start, block_end,
@ -4770,24 +4769,23 @@ again:
unlock_extent_cached(io_tree, block_start, block_end, &cached_state);
if (only_release_metadata)
set_extent_bit(&BTRFS_I(inode)->io_tree, block_start,
block_end, EXTENT_NORESERVE, NULL, GFP_NOFS);
set_extent_bit(&inode->io_tree, block_start, block_end,
EXTENT_NORESERVE, NULL, GFP_NOFS);
out_unlock:
if (ret) {
if (only_release_metadata)
btrfs_delalloc_release_metadata(BTRFS_I(inode),
blocksize, true);
btrfs_delalloc_release_metadata(inode, blocksize, true);
else
btrfs_delalloc_release_space(BTRFS_I(inode), data_reserved,
btrfs_delalloc_release_space(inode, data_reserved,
block_start, blocksize, true);
}
btrfs_delalloc_release_extents(BTRFS_I(inode), blocksize);
btrfs_delalloc_release_extents(inode, blocksize);
unlock_page(page);
put_page(page);
out:
if (only_release_metadata)
btrfs_check_nocow_unlock(BTRFS_I(inode));
btrfs_check_nocow_unlock(inode);
extent_changeset_free(data_reserved);
return ret;
}
@ -4869,7 +4867,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
* rest of the block before we expand the i_size, otherwise we could
* expose stale data.
*/
err = btrfs_truncate_block(inode, oldsize, 0, 0);
err = btrfs_truncate_block(BTRFS_I(inode), oldsize, 0, 0);
if (err)
return err;
@ -8553,7 +8551,7 @@ static int btrfs_truncate(struct inode *inode, bool skip_writeback)
btrfs_end_transaction(trans);
btrfs_btree_balance_dirty(fs_info);
ret = btrfs_truncate_block(inode, inode->i_size, 0, 0);
ret = btrfs_truncate_block(BTRFS_I(inode), inode->i_size, 0, 0);
if (ret)
goto out;
trans = btrfs_start_transaction(root, 1);