linux-kernel - [PATCH 7/9] V4L/DVB (5069): Fix bttv and friends on 64bit machines with lots of memory

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Message-id: <20070115183706.PS6698000007@infradead.org>
Date:	Mon, 15 Jan 2007 16:37:06 -0200
From:	Mauro Carvalho Chehab <mchehab@...radead.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	V4L-DVB Maintainers <v4l-dvb-maintainer@...uxtv.org>,
	Gerd Hoffmann <kraxel@...ell.com>,
	Gerds Hoffmann <kraxel@...e.de>, Andrew Morton <akpm@...l.org>,
	Mauro Carvalho Chehab <mchehab@...radead.org>
Subject: [PATCH 7/9] V4L/DVB (5069): Fix bttv and friends on 64bit machines
	with lots of memory


From: Gerd Hoffmann <kraxel@...ell.com>

We have a DMA32 zone now, lets use it to make sure the card
can reach the memory we have allocated for the video frame
buffers.

Signed-off-by: Gerds Hoffmann <kraxel@...e.de>
Signed-off-by: Andrew Morton <akpm@...l.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...radead.org>
---

 drivers/media/video/video-buf.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index f429f49..635d102 100644
--- a/drivers/media/video/video-buf.c
+++ b/drivers/media/video/video-buf.c
@@ -1229,7 +1229,7 @@ videobuf_vm_nopage(struct vm_area_struct
 		vaddr,vma->vm_start,vma->vm_end);
 	if (vaddr > vma->vm_end)
 		return NOPAGE_SIGBUS;
-	page = alloc_page(GFP_USER);
+	page = alloc_page(GFP_USER | __GFP_DMA32);
 	if (!page)
 		return NOPAGE_OOM;
 	clear_user_page(page_address(page), vaddr, page);

-
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