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author | David Sterba <dsterba@suse.com> | 2018-02-19 19:24:18 +0300 |
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committer | David Sterba <dsterba@suse.com> | 2018-03-26 16:09:39 +0300 |
commit | e67c718b5b9a306bde7e966be7b4ca48fa063d73 (patch) | |
tree | 5b4905cba33483869094404c531cba4d30767780 /fs/btrfs/backref.h | |
parent | ffc5a3794f9779c1a09e18e6d75bb6cc22b37523 (diff) | |
download | linux-e67c718b5b9a306bde7e966be7b4ca48fa063d73.tar.xz |
btrfs: add more __cold annotations
The __cold functions are placed to a special section, as they're
expected to be called rarely. This could help i-cache prefetches or help
compiler to decide which branches are more/less likely to be taken
without any other annotations needed.
Though we can't add more __exit annotations, it's still possible to add
__cold (that's also added with __exit). That way the following function
categories are tagged:
- printf wrappers, error messages
- exit helpers
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/backref.h')
-rw-r--r-- | fs/btrfs/backref.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h index 0c2fab8514ff..0a30028d5196 100644 --- a/fs/btrfs/backref.h +++ b/fs/btrfs/backref.h @@ -73,7 +73,7 @@ int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid, int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr); int __init btrfs_prelim_ref_init(void); -void btrfs_prelim_ref_exit(void); +void __cold btrfs_prelim_ref_exit(void); struct prelim_ref { struct rb_node rbnode; |