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| author | Filipe Manana <fdmanana@suse.com> | 2022-09-01 15:18:27 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-09-26 12:28:01 +0200 |
| commit | 8eedaddaab6a6b8ccfd8d942a173500b73894643 (patch) | |
| tree | 279584e3dea71194e836082bb9d1c79e914cc971 /fs/btrfs/backref.c | |
| parent | btrfs: allow fiemap to be interruptible (diff) | |
| download | linux-8eedaddaab6a6b8ccfd8d942a173500b73894643.tar.xz linux-8eedaddaab6a6b8ccfd8d942a173500b73894643.zip | |
btrfs: rename btrfs_check_shared() to a more descriptive name
The function btrfs_check_shared() is supposed to be used to check if a
data extent is shared, but its name is too generic, may easily cause
confusion in the sense that it may be used for metadata extents.
So rename it to btrfs_is_data_extent_shared(), which will also make it
less confusing after the next change that adds a backref lookup cache for
the b+tree nodes that lead to the leaf that contains the file extent item
that points to the target data extent.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/backref.c')
| -rw-r--r-- | fs/btrfs/backref.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index d385357e19b6..7766a6717a7d 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1511,8 +1511,8 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, return ret; } -/** - * Check if an extent is shared or not +/* + * Check if a data extent is shared or not. * * @root: root inode belongs to * @inum: inode number of the inode whose extent we are checking @@ -1520,7 +1520,7 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, * @roots: list of roots this extent is shared among * @tmp: temporary list used for iteration * - * btrfs_check_shared uses the backref walking code but will short + * btrfs_is_data_extent_shared uses the backref walking code but will short * circuit as soon as it finds a root or inode that doesn't match the * one passed in. This provides a significant performance benefit for * callers (such as fiemap) which want to know whether the extent is @@ -1531,8 +1531,8 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, * * Return: 0 if extent is not shared, 1 if it is shared, < 0 on error. */ -int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr, - struct ulist *roots, struct ulist *tmp) +int btrfs_is_data_extent_shared(struct btrfs_root *root, u64 inum, u64 bytenr, + struct ulist *roots, struct ulist *tmp) { struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; |