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Date: Mon, 30 Jul 2012 15:24:24 +0800
From: majianpeng <majianpeng@gmail.com>
Subject: [PATCH 5/8]fs/ext4: Evalue bio->bi_rw after calling bio_alloc() and
	before calling bio_add_page().
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To: axboe <axboe@kernel.dk>, "konrad.wilk" <konrad.wilk@oracle.com>, "chris.mason" <chris.mason@fusionio.com>, viro <viro@ZenIV.linux.org.uk>, tytso <tytso@mit.edu>, "adilger.kernel" <adilger.kernel@dilger.ca>, shaggy <shaggy@kernel.org>, mfasheh <mfasheh@suse.com>, jlbec <jlbec@evilplan.org>, bpm <bpm@sgi.com>, elder <elder@kernel.org>
Cc: jfs-discussion <jfs-discussion@lists.sourceforge.net>, linux-kernel <linux-kernel@vger.kernel.org>, xfs <xfs@oss.sgi.com>, linux-fsdevel <linux-fsdevel@vger.kernel.org>, linux-ext4 <linux-ext4@vger.kernel.org>, linux-btrfs <linux-btrfs@vger.kernel.org>

Because call bio_alloc, the bi_rw is zero by default,but in
bio_add_page used the bi_rw. So evalue bi_rw.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
---
 fs/ext4/page-io.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index dcdeef1..c875502 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -304,6 +304,7 @@ static int io_submit_init(struct ext4_io_submit *io,
 	io->io_bio = bio;
 	io->io_op = (wbc->sync_mode == WB_SYNC_ALL ?  WRITE_SYNC : WRITE);
 	io->io_next_block = bh->b_blocknr;
+	bio->bi_rw = io->io_op;
 	return 0;
 }
 
-- 
1.7.9.5
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