linux-kernel - [ 43/48] ocfs2: clear unaligned io flag when dio fails

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Message-Id: <20120709143122.828489522@decadent.org.uk>
Date:	Mon, 09 Jul 2012 15:31:59 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Junxiao Bi <junxiao.bi@...cle.com>,
	Joel Becker <jlbec@...lplan.org>
Subject: [ 43/48] ocfs2: clear unaligned io flag when dio fails

3.2-stable review patch.  If anyone has any objections, please let me know.

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

From: Junxiao Bi <junxiao.bi@...cle.com>

commit 3e5d3c35a68c9a933bdbdd8685bd1a205b57e806 upstream.

The unaligned io flag is set in the kiocb when an unaligned
dio is issued, it should be cleared even when the dio fails,
or it may affect the following io which are using the same
kiocb.

Signed-off-by: Junxiao Bi <junxiao.bi@...cle.com>
Signed-off-by: Joel Becker <jlbec@...lplan.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 fs/ocfs2/file.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 061591a..98513c8 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2422,8 +2422,10 @@ out_dio:
 		unaligned_dio = 0;
 	}
 
-	if (unaligned_dio)
+	if (unaligned_dio) {
+		ocfs2_iocb_clear_unaligned_aio(iocb);
 		atomic_dec(&OCFS2_I(inode)->ip_unaligned_aio);
+	}
 
 out:
 	if (rw_level != -1)


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