X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmd%2Fraid5.c;h=ed859e08d600fbbc31ba8877fe440fd6167201cd;hb=8ddf9efe6708f3674f0ddfeb6425fd27bea109a2;hp=43f231a467d5cb0137f15bd5568de80993a0bb08;hpb=1703ecc7e88ea2d583fc9ebe7de8edb004eff863;p=linux-2.6

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 43f231a467..ed859e08d6 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1411,6 +1411,11 @@ static int make_request (request_queue_t *q, struct bio * bi)
 	sector_t logical_sector, last_sector;
 	struct stripe_head *sh;
 
+	if (unlikely(bio_barrier(bi))) {
+		bio_endio(bi, bi->bi_size, -EOPNOTSUPP);
+		return 0;
+	}
+
 	md_write_start(mddev, bi);
 
 	if (bio_data_dir(bi)==WRITE) {