diff options
| author | Omar Sandoval <osandov@fb.com> | 2019-11-19 09:45:55 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-03-14 15:13:51 +0300 |
| commit | 28c9b1e75aa1794897a9cb709f20f27f4aadebac (patch) | |
| tree | eff413c080922d074c0f750237e63e32ac3159e8 /fs/btrfs/inode.c | |
| parent | cb36a9bb17c4abf720123dacd449408588247005 (diff) | |
| download | linux-28c9b1e75aa1794897a9cb709f20f27f4aadebac.tar.xz | |
btrfs: support different disk extent size for delalloc
Currently, we always reserve the same extent size in the file and extent
size on disk for delalloc because the former is the worst case for the
latter. For BTRFS_IOC_ENCODED_WRITE writes, we know the exact size of
the extent on disk, which may be less than or greater than (for
bookends) the size in the file. Add a disk_num_bytes parameter to
btrfs_delalloc_reserve_metadata() so that we can reserve the correct
amount of csum bytes. No functional change.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 5f77554686db..38ea51d64553 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4697,7 +4697,7 @@ int btrfs_truncate_block(struct btrfs_inode *inode, loff_t from, loff_t len, goto out; } } - ret = btrfs_delalloc_reserve_metadata(inode, blocksize); + ret = btrfs_delalloc_reserve_metadata(inode, blocksize, blocksize); if (ret < 0) { if (!only_release_metadata) btrfs_free_reserved_data_space(inode, data_reserved, @@ -7467,7 +7467,7 @@ static int btrfs_get_blocks_direct_write(struct extent_map **map, struct extent_map *em2; /* We can NOCOW, so only need to reserve metadata space. */ - ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode), len); + ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode), len, len); if (ret < 0) { /* Our caller expects us to free the input extent map. */ free_extent_map(em); |