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authorDavid Sterba <dsterba@suse.com>2018-02-19 19:24:18 +0300
committerDavid Sterba <dsterba@suse.com>2018-03-26 16:09:39 +0300
commite67c718b5b9a306bde7e966be7b4ca48fa063d73 (patch)
tree5b4905cba33483869094404c531cba4d30767780 /fs/btrfs/extent_io.h
parentffc5a3794f9779c1a09e18e6d75bb6cc22b37523 (diff)
downloadlinux-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.h2
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,