dm: make flush bios explicitly sync

[sfrench/cifs-2.6.git] / drivers / md / dm.c

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 6ef9500226c0c7d789ed78e6876195f73ef9d6b7..37ccd73c79ecf2eeb4f33b5bc597f88ca5750d4b 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1657,7 +1657,7 @@ static struct mapped_device *alloc_dev(int minor)
 
        bio_init(&md->flush_bio, NULL, 0);
        md->flush_bio.bi_bdev = md->bdev;
-       md->flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
+       md->flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC;
 
        dm_stats_init(&md->stats);