From: Zhao Lei <zhaolei@cn.fujitsu.com>
Date: Wed, 22 Jul 2015 05:14:48 +0000 (+0800)
Subject: btrfs: Bypass unrelated items before accessing its contents in scrub
X-Git-Tag: omap-for-v4.3/fixes-rc1~86^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7cad2389560f3249435ac928bc13e9408ae467e;p=pandora-kernel.git

btrfs: Bypass unrelated items before accessing its contents in scrub

When we access extent_root in scrub_stripe() and
scrub_raid56_parity(), we need bypass unrelated tree item firstly
before using its contents to do other condition.

It is not a bug fix, only making code sequence in logic.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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