From: Liu Bo <liubo2009@cn.fujitsu.com>
Date: Thu, 12 Apr 2012 20:03:56 +0000 (-0400)
Subject: Btrfs: fix eof while discarding extents
X-Git-Tag: v3.4-rc3~11^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b89203f74bdfcb15407d54d3f257b16a2ea19e62;p=pandora-kernel.git

Btrfs: fix eof while discarding extents

We miscalculate the length of extents we're discarding, and it leads to
an eof of device.

Reported-by: Daniel Blueman <daniel@quora.org>
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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