[PATCH 1/8] block/blk-lib.c: Evalue bio->bi_rw after calling bio_alloc() and before calling bio_add_page().

[majianpeng <majianpeng@xxxxxxxxx>]

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