tree 0ecc36238400c974a6c94eee6cda7288d494f515
parent 362a20c5e27614739c46707d1c5f55c214d164ce
author Arne Jansen <sensille@gmx.net> 1315905490 +0200
committer Alexander Block <ablock84@googlemail.com> 1343230398 +0200

Btrfs: add helper for tree enumeration

Often no exact match is wanted but just the next lower or
higher item. There's a lot of duplicated code throughout
btrfs to deal with the corner cases. This patch adds a
helper function that can facilitate searching.

Signed-off-by: Arne Jansen <sensille@gmx.net>