xen/blkfront: Make sure we don't use bounce buffers, we don't need them.
[ linux-2.6.18-xen changeset 667228bf8fc5 ]
Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index f2fff57..e8d3bf6 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -324,6 +324,9 @@
/* Make sure buffer addresses are sector-aligned. */
blk_queue_dma_alignment(rq, 511);
+ /* Make sure we don't use bounce buffers. */
+ blk_queue_bounce_limit(rq, BLK_BOUNCE_ANY);
+
gd->queue = rq;
return 0;