From: Chris Mason <chris.mason@fusionio.com>
Date: Wed, 25 Jul 2012 20:03:32 +0000 (-0400)
Subject: Btrfs: add a barrier before a waitqueue_active check
X-Git-Tag: v3.6-rc1~81^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd1cfc49153ba2bef247e500d8bd4d135193ece9;p=pandora-kernel.git

Btrfs: add a barrier before a waitqueue_active check

We were missing wakeups on the delayed ref waitqueue due
to races on waitqueue_active.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

Reading git-diff-tree failed