[PATCH 3/8]fs/btrfs: Evalue bio->bi_rw after calling bio_alloc() and before calling bio_add_page().

[majianpeng]

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 at gmail.com>
---
 fs/btrfs/check-integrity.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 9197e2e..25440aa 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1700,6 +1700,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
 		bio->bi_sector = dev_bytenr >> 9;
 		bio->bi_end_io = btrfsic_complete_bio_end_io;
 		bio->bi_private = &complete;
+		bio->bi_rw = READ;
 
 		for (j = i; j < num_pages; j++) {
 			ret = bio_add_page(bio, block_ctx->pagev[j],
-- 
1.7.9.5