From: Miao Xie <miaox@cn.fujitsu.com>
Date: Wed, 15 May 2013 07:48:16 +0000 (+0000)
Subject: Btrfs: fix unprotected root node of the subvolume's inode rb-tree
X-Git-Tag: v3.10-rc2~7^2^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1409cef85894f96f4bddc6633d64d1c5275e2a3;p=pandora-kernel.git

Btrfs: fix unprotected root node of the subvolume's inode rb-tree

The root node of the rb-tree may be changed, so we should get it under
the lock. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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