From: Bob Peterson <rpeterso@redhat.com>
Date: Wed, 18 Jun 2008 16:30:40 +0000 (-0500)
Subject: [GFS2] BUG: unable to handle kernel paging request at ffff81002690e000
X-Git-Tag: v2.6.26-rc8~2^2~1
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17c15da00c0e7289375ad57e8fea0c7892b74aa0;p=linux-2.6

[GFS2] BUG: unable to handle kernel paging request at ffff81002690e000

This patch fixes bugzilla bug bz448866: gfs2: BUG: unable to
handle kernel paging request at ffff81002690e000.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 6387523a31..3401628d74 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -195,7 +195,7 @@ ulong_aligned:
 	   depending on architecture.  I've experimented with several ways
 	   of writing this section such as using an else before the goto
 	   but this one seems to be the fastest. */
-	while ((unsigned char *)plong < end - 1) {
+	while ((unsigned char *)plong < end - sizeof(unsigned long)) {
 		prefetch(plong + 1);
 		if (((*plong) & LBITMASK) != lskipval)
 			break;