[PATCH] md: add information about superblock version to /proc/mdstat

[linux-2.6-omap-h63xx.git] / drivers / md / raid0.c

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 2120710172c5411a4743686762878a76e8aa7695..f6757259ce7fe3f8ced8b05553f2cf52c25e6dbb 100644 (file)
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -404,6 +404,11 @@ static int raid0_make_request (request_queue_t *q, struct bio *bio)
        unsigned long chunk;
        sector_t block, rsect;
 
+       if (unlikely(bio_barrier(bio))) {
+               bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
+               return 0;
+       }
+
        if (bio_data_dir(bio)==WRITE) {
                disk_stat_inc(mddev->gendisk, writes);
                disk_stat_add(mddev->gendisk, write_sectors, bio_sectors(bio));