diff options
author | David Sterba <dsterba@suse.com> | 2018-02-19 19:24:18 +0300 |
---|---|---|
committer | David Sterba <dsterba@suse.com> | 2018-03-26 16:09:39 +0300 |
commit | e67c718b5b9a306bde7e966be7b4ca48fa063d73 (patch) | |
tree | 5b4905cba33483869094404c531cba4d30767780 /fs/btrfs/extent_io.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/extent_io.h')
-rw-r--r-- | fs/btrfs/extent_io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index da9be2fb0502..e359c5d4305c 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -286,7 +286,7 @@ int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end); int extent_read_full_page(struct extent_io_tree *tree, struct page *page, get_extent_t *get_extent, int mirror_num); int __init extent_io_init(void); -void extent_io_exit(void); +void __cold extent_io_exit(void); u64 count_range_bits(struct extent_io_tree *tree, u64 *start, u64 search_end, |