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Subject[patch 01/45] XFS: corruption fix
-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Mandy Kirkconnell <alkirkco@sgi.com>

Fix nused counter. It's currently getting set to -1 rather than getting
decremented by 1. Since nused never reaches 0, the "if (!free->hdr.nused)"
check in xfs_dir2_leafn_remove() fails every time and xfs_dir2_shrink_inode()
doesn't get called when it should. This causes extra blocks to be left on
an empty directory and the directory in unable to be converted back to
inline extent mode.
Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
fs/xfs/xfs_dir2_node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.17.2.orig/fs/xfs/xfs_dir2_node.c
+++ linux-2.6.17.2/fs/xfs/xfs_dir2_node.c
@@ -970,7 +970,7 @@ xfs_dir2_leafn_remove(
/*
* One less used entry in the free table.
*/
- free->hdr.nused = cpu_to_be32(-1);
+ be32_add(&free->hdr.nused, -1);
xfs_dir2_free_log_header(tp, fbp);
/*
* If this was the last entry in the table, we can
--
-
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