From: Mark Fasheh <mfasheh@suse.com>
Date: Thu, 1 Sep 2011 18:27:57 +0000 (-0700)
Subject: btrfs: Go readonly on tree errors in balance_level
X-Git-Tag: v3.4-rc1~22^2~13^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=305a26af5b2561a66859ef05ed7eb73d3c9f0913;p=pandora-kernel.git

btrfs: Go readonly on tree errors in balance_level

balace_level() seems to deal with missing tree nodes by BUG_ON(). Instead,
we can easily just set the file system readonly and bubble -EROFS back up
the stack.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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