From: Arne Jansen <sensille@gmx.net>
Date: Tue, 13 Sep 2011 09:18:10 +0000 (+0200)
Subject: Btrfs: add helper for tree enumeration
X-Git-Tag: v3.6-rc1~81^2~5^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f38b3e1900634e64a186873b3388b1bf85dabc0;p=pandora-kernel.git

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>
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