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-rw-r--r--drivers/md/multipath.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 2d2ca7fa0265..286342375fb7 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -169,6 +169,11 @@ static int multipath_make_request (request_queue_t *q, struct bio * bio)
struct multipath_bh * mp_bh;
struct multipath_info *multipath;
+ if (unlikely(bio_barrier(bio))) {
+ bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
+ return 0;
+ }
+
mp_bh = mempool_alloc(conf->pool, GFP_NOIO);
mp_bh->master_bio = bio;
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