[PATCH 1/8] Evalue bio->bi_rw after calling bio

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 1/8] Evalue bio->bi_rw after calling bio_alloc() and before calling bio_add_page().
From:	kedacomkernel <kedacomkernel@xxxxxxxxx>
Date:	Mon, 30 Jul 2012 15:15:52 +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>, ocfs2-devel <ocfs2-devel@xxxxxxxxxxxxxx>, 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>
---
 block/blk-lib.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-lib.c b/block/blk-lib.c
index 2b461b4..fac777b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -151,6 +151,7 @@ int blkdev_issue_zeroout(struct block_device *bdev, 
sector_t sector,
                bio->bi_bdev   = bdev;
                bio->bi_end_io = bio_batch_end_io;
                bio->bi_private = &bb;
+               bio->bi_rw = WRITE;
 
                while (nr_sects != 0) {
                        sz = min((sector_t) PAGE_SIZE >> 9 , nr_sects);
-- 
1.7.9.5

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[PATCH 1/8] Evalue bio->bi_rw after calling bio_alloc() and before calli