From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 15 Jul 2013 04:09:19 +0000 (-0400)
Subject: ext4: fix error handling in ext4_ext_truncate()
X-Git-Tag: v3.11-rc2~5^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8acd5e9b1217e58a57124d9e225afa12efeae20d;p=pandora-kernel.git

ext4: fix error handling in ext4_ext_truncate()

Previously ext4_ext_truncate() was ignoring potential error returns
from ext4_es_remove_extent() and ext4_ext_remove_space().  This can
lead to the on-diks extent tree and the extent status tree cache
getting out of sync, which is particuarlly bad, and can lead to file
system corruption and potential data loss.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
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