tree 5b4905cba33483869094404c531cba4d30767780
parent ffc5a3794f9779c1a09e18e6d75bb6cc22b37523
author David Sterba <dsterba@suse.com> 1519057458 +0100
committer David Sterba <dsterba@suse.com> 1522069779 +0200

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>