[PATCH 2/8] drivers/block/xen-blkback:Evalue bio->bi

To:	axboe <axboe@xxxxxxxxx>, "konrad.wilk" <konrad.wilk@xxxxxxxxxx>, "chris.mason" <chris.mason@xxxxxxxxxxxx>, viro <viro@xxxxxxxxxxxxxxxxxx>, tytso <tytso@xxxxxxx>, "adilger.kernel" <adilger.kernel@xxxxxxxxx>, shaggy <shaggy@xxxxxxxxxx>, mfasheh <mfasheh@xxxxxxxx>, jlbec <jlbec@xxxxxxxxxxxx>, bpm <bpm@xxxxxxx>, elder <elder@xxxxxxxxxx>
Subject:	[PATCH 2/8] drivers/block/xen-blkback:Evalue bio->bi_rw after calling bio_alloc() and before calling bio_add_page().
From:	majianpeng <majianpeng@xxxxxxxxx>
Date:	Mon, 30 Jul 2012 15:23:55 +0800
Cc:	linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>, linux-btrfs <linux-btrfs@xxxxxxxxxxxxxxx>, linux-fsdevel <linux-fsdevel@xxxxxxxxxxxxxxx>, linux-ext4 <linux-ext4@xxxxxxxxxxxxxxx>, jfs-discussion <jfs-discussion@xxxxxxxxxxxxxxxxxxxxx>, xfs <xfs@xxxxxxxxxxx>
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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@xxxxxxxxx>
---
 drivers/block/xen-blkback/blkback.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/xen-blkback/blkback.c 
b/drivers/block/xen-blkback/blkback.c
index 73f196c..02ca290 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -701,6 +701,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
                        bio->bi_private = pending_req;
                        bio->bi_end_io  = end_block_io_op;
                        bio->bi_sector  = preq.sector_number;
+                       bio->bi_rw      = operation;
                }
 
                preq.sector_number += seg[i].nsec;
-- 
1.7.9.5

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[PATCH 2/8] drivers/block/xen-blkback:Evalue bio->bi_rw after calling bi