From: liubo <liubo2009@cn.fujitsu.com>
Date: Wed, 1 Jun 2011 09:42:49 +0000 (+0000)
Subject: Btrfs: don't save the inode cache in non-FS roots
X-Git-Tag: v3.0-rc2~5^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca456ae280c0646e1e571c3b9a3834c55e90adfe;p=pandora-kernel.git

Btrfs: don't save the inode cache in non-FS roots

This adds extra checks to make sure the inode map we are caching really
belongs to a FS root instead of a special relocation tree.  It
prevents crashes during balancing operations.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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