From: Sage Weil <sage@newdream.net>
Date: Sat, 11 Sep 2010 17:55:25 +0000 (-0700)
Subject: ceph: fix file offset wrapping at 4GB on 32-bit archs
X-Git-Tag: v2.6.36-rc6~84^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a77d9f7dce7600058d56f0670ed29d77abffcde2;p=pandora-kernel.git

ceph: fix file offset wrapping at 4GB on 32-bit archs

Cast the value before shifting so that we don't run out of bits with a
32-bit unsigned long.  This fixes wrapping of high file offsets into the
low 4GB of a file on disk, and the subsequent data corruption for large
files.

Signed-off-by: Sage Weil <sage@newdream.net>
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