btrfs: Document __etree_search
authorNikolay Borisov <nborisov@suse.com>
Wed, 5 Jun 2019 11:50:04 +0000 (14:50 +0300)
committerDavid Sterba <dsterba@suse.com>
Mon, 1 Jul 2019 11:35:03 +0000 (13:35 +0200)
commit8666e638b07e2be143b91129d3499d2c25f26a5f
treeb41f5996e53b25d311cbaf45fcdaee0f00504411
parent1eaebb341d2b4183d0112b76e31ccff3e1fe3092
btrfs: Document __etree_search

The function has a lot of return values and specific conventions making
it cumbersome to understand what's returned. Have a go at documenting
its parameters and return values.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/extent_io.c