linux-kernel - [PATCH 1 of 5] xen/blkfront: Make sure we don't use bounce buffers, we don't need them

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Message-Id: <967afd96e8ece92cb863.1212191401@localhost>
Date:	Sat, 31 May 2008 00:50:01 +0100
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Jeff Garzik <jgarzik.pobox.com@...p.org>
Cc:	Jens Axboe <jens.axboe@...cle.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1 of 5] xen/blkfront: Make sure we don't use bounce buffers,
	we don't need them

From: Ian Campbell <ian.campbell@...source.com>

[ linux-2.6.18-xen changeset 667228bf8fc5 ]

Signed-off-by: Ian Campbell <ian.campbell@...source.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
 drivers/block/xen-blkfront.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
--- 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;


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