From: Abhijith Das <adas@redhat.com>
Subject: Re: [RHEL5.1 PATCH] GFS2 - bz 250772: GFS2: assertion 	failure gfs2_block_map
Date: Mon, 20 Aug 2007 11:37:54 -0500
Bugzilla: 250772
Message-Id: <46C9C362.6010101@redhat.com>
Changelog: [gfs2] unstuff quota inode

Hi,
This patch forcibly unstuffs (if stuffed) the hidden quota inode at the
first available opportunity. In any practical scenario the quota inode
won't be stuffed, so this is ok to do. Unstuffing the quota inode allows
us to ignore the case of a stuffed quota inode in gfs2_adjust_quota().

This patch is upstream:
http://git.kernel.org/?p=linux/kernel/git/steve/gfs2-2.6-nmw.git;a=commit;h=79cdc1550364ea51c9220f629d7dd015561fb26d

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

Index: linux-rhel51-quilt/fs/gfs2/quota.c
===================================================================
--- linux-rhel51-quilt.orig/fs/gfs2/quota.c    2007-08-15
17:34:41.000000000 -0500
+++ linux-rhel51-quilt/fs/gfs2/quota.c    2007-08-16 14:11:09.000000000
-0500
@@ -617,6 +617,16 @@
	s64 value;
	int err = -EIO;

+	if (gfs2_is_stuffed(ip)) {
+		struct gfs2_alloc *al = NULL;
+		al = gfs2_alloc_get(ip);
+		/* just request 1 blk */
+		al->al_requested = 1;
+		gfs2_inplace_reserve(ip);
+		gfs2_unstuff_dinode(ip, NULL);
+		gfs2_inplace_release(ip);
+		gfs2_alloc_put(ip);
+	}
	page = grab_cache_page(mapping, index);
	if (!page)
		return -ENOMEM;