Arne Jansen e679376911 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>
2012-07-25 17:33:18 +02:00
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