diff options
Diffstat (limited to 'drivers/block/virtio_blk.c')
-rw-r--r-- | drivers/block/virtio_blk.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 2aafafca2b13..79652809eee8 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c | |||
@@ -395,15 +395,6 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) | |||
395 | * to implement write barrier support. | 395 | * to implement write barrier support. |
396 | */ | 396 | */ |
397 | blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH); | 397 | blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH); |
398 | } else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER)) { | ||
399 | /* | ||
400 | * If the BARRIER feature is supported the host expects us | ||
401 | * to order request by tags. This implies there is not | ||
402 | * volatile write cache on the host, and that the host | ||
403 | * never re-orders outstanding I/O. This feature is not | ||
404 | * useful for real life scenarious and deprecated. | ||
405 | */ | ||
406 | blk_queue_ordered(q, QUEUE_ORDERED_TAG); | ||
407 | } else { | 398 | } else { |
408 | /* | 399 | /* |
409 | * If the FLUSH feature is not supported we must assume that | 400 | * If the FLUSH feature is not supported we must assume that |