From f4387149ec71fed11535b49400bad17d22fdc935 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Tue, 8 Aug 2006 13:23:19 -0400
Subject: [PATCH] [GFS2] Fix lack of buffers in writepage bug

In some cases we can enter write page without there being buffers
attached to the page. In this case the function to add gfs2_bufdata
to the buffers fails sliently causing further failures down the
stack.

This fix ensures that we always add buffers in writepage if they
didn't already exist (mmap is one way to trigger this).

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