Use WRITE_BARRIER in blkdev_issue_flush(), not (1<<BIO_RW_BARRIER)

Barriers should be submitted with the WRITE flag set.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 273121c..e544813 100644 (file)
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -293,7 +293,7 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
        bio->bi_end_io = bio_end_empty_barrier;
        bio->bi_private = &wait;
        bio->bi_bdev = bdev;
-       submit_bio(1 << BIO_RW_BARRIER, bio);
+       submit_bio(WRITE_BARRIER, bio);
 
        wait_for_completion(&wait);