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| author |   Omar Sandoval <osandov@fb.com> | 2019-11-18 22:45:55 -0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-03-14 13:13:51 +0100 |
| commit | 28c9b1e75aa1794897a9cb709f20f27f4aadebac (patch) | |
| tree | eff413c080922d074c0f750237e63e32ac3159e8 /fs/btrfs/ctree.h | |
| parent | btrfs: add ram_bytes and offset to btrfs_ordered_extent (diff) | |
| download | linux-dev-28c9b1e75aa1794897a9cb709f20f27f4aadebac.tar.xz linux-dev-28c9b1e75aa1794897a9cb709f20f27f4aadebac.zip | |
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/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index aa88dd70ac48..91b27d5eb8cf 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2887,7 +2887,8 @@ void btrfs_subvolume_release_metadata(struct btrfs_root *root, struct btrfs_block_rsv *rsv); void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes); -int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes); +int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes, + u64 disk_num_bytes); u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo); int btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info, u64 start, u64 end); |