From 8af12fc1c2c44a6fac07e4a8b7f44ca0c6ea038a Mon Sep 17 00:00:00 2001
From: Sunil Mushran <sunil.mushran@oracle.com>
Date: Fri, 4 Sep 2009 11:12:01 -0700
Subject: [PATCH] ocfs2: ocfs2_write_begin_nolock() should handle len=0

commit 8379e7c46cc48f51197dd663fc6676f47f2a1e71 upstream.

Bug introduced by mainline commit e7432675f8ca868a4af365759a8d4c3779a3d922
The bug causes ocfs2_write_begin_nolock() to oops when len=0.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
Reading git-format-patch failed