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| author | David Sterba <dsterba@suse.com> | 2018-02-19 17:24:18 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-03-26 15:09:39 +0200 |
| commit | e67c718b5b9a306bde7e966be7b4ca48fa063d73 (patch) | |
| tree | 5b4905cba33483869094404c531cba4d30767780 /fs/btrfs/delayed-ref.h | |
| parent | ffc5a3794f9779c1a09e18e6d75bb6cc22b37523 (diff) | |
| download | lwn-e67c718b5b9a306bde7e966be7b4ca48fa063d73.tar.gz lwn-e67c718b5b9a306bde7e966be7b4ca48fa063d73.zip | |
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/delayed-ref.h')
| -rw-r--r-- | fs/btrfs/delayed-ref.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index c4f625e5a691..9e3e5aff0937 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -204,7 +204,7 @@ extern struct kmem_cache *btrfs_delayed_data_ref_cachep; extern struct kmem_cache *btrfs_delayed_extent_op_cachep; int __init btrfs_delayed_ref_init(void); -void btrfs_delayed_ref_exit(void); +void __cold btrfs_delayed_ref_exit(void); static inline struct btrfs_delayed_extent_op * btrfs_alloc_delayed_extent_op(void) |