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From: Greg KH on 12 Mar 2010 19:50
2.6.32-stable review patch. If anyone has any objections, please let me know.

----------------
From: Tao Ma <tao.ma(a)oracle.com>

commit cbaee472f274ea9a98aabe47025f6e5551acadcb upstream.

In ocfs2_direct_IO_get_blocks, we only need to bug out
in case of we are going to write a recounted extent rec.

What a silly bug introduced by me!

Signed-off-by: Tao Ma <tao.ma(a)oracle.com>
Signed-off-by: Joel Becker <joel.becker(a)oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
fs/ocfs2/aops.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -591,8 +591,9 @@ static int ocfs2_direct_IO_get_blocks(st
goto bail;
}

- /* We should already CoW the refcounted extent. */
- BUG_ON(ext_flags & OCFS2_EXT_REFCOUNTED);
+ /* We should already CoW the refcounted extent in case of create. */
+ BUG_ON(create && (ext_flags & OCFS2_EXT_REFCOUNTED));
+
/*
* get_more_blocks() expects us to describe a hole by clearing
* the mapped bit on bh_result().


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