From: Ian Campbell <ian.campbell@xensource.com>
Date: Tue, 17 Jun 2008 08:47:08 +0000 (+0200)
Subject: xen/blkfront: Make sure we don't use bounce buffers, we don't need them.
X-Git-Tag: v2.6.27-rc1~1114^2~30
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1c91fe1a0d577f2e53475e789c9d63a0feb7d93c;p=karo-tx-linux.git

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 f2fff5799ddf..e8d3bf6f3918 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -324,6 +324,9 @@ static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size)
 	/* 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;