linux-kernel - [033/117] ocfs2: Compute metaecc for superblocks during online resize.

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Message-Id: <20100510223320.179273402@kvm.kroah.org>
Date:	Mon, 10 May 2010 15:32:04 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Joel Becker <joel.becker@...cle.com>,
	Mark Fasheh <mfasheh@...e.com>
Subject: [033/117] ocfs2: Compute metaecc for superblocks during online resize.

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Joel Becker <joel.becker@...cle.com>

commit a42ab8e1a37257da37e0f018e707bf365ac24531 upstream.

Online resize writes out the new superblock and its backups directly.
The metaecc data wasn't being recomputed.  Let's do that directly.

Signed-off-by: Joel Becker <joel.becker@...cle.com>
Acked-by: Mark Fasheh <mfasheh@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/ocfs2/buffer_head_io.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/fs/ocfs2/buffer_head_io.c
+++ b/fs/ocfs2/buffer_head_io.c
@@ -407,6 +407,7 @@ int ocfs2_write_super_or_backup(struct o
 				struct buffer_head *bh)
 {
 	int ret = 0;
+	struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
 
 	mlog_entry_void();
 
@@ -426,6 +427,7 @@ int ocfs2_write_super_or_backup(struct o
 
 	get_bh(bh); /* for end_buffer_write_sync() */
 	bh->b_end_io = end_buffer_write_sync;
+	ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check);
 	submit_bh(WRITE, bh);
 
 	wait_on_buffer(bh);


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