From: Abhijith Das <adas@redhat.com>
Date: Sun, 4 Jul 2010 05:33:24 +0000 (-0400)
Subject: GFS2: BUG in gfs2_adjust_quota
X-Git-Tag: v2.6.35-rc6~37^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8b4216018bdbfbb1b76150d202b15ee68c38e991;p=pandora-kernel.git

GFS2: BUG in gfs2_adjust_quota

HighMem pages on i686 do not get mapped to the buffer_heads and this was
causing a NULL pointer dereference when we were trying to memset page buffers
to zero.
We now use zero_user() that kmaps the page and directly manipulates page data.
This patch also fixes a boundary condition that was incorrect.

Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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