btrfs: export the caching control helpers

Man a lot of people use this stuff.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2019-06-20 15:37:50 -04:00 • committed by David Sterba
commit e3cb339fa5
2 changed files with 21 additions and 18 deletions