V4L/DVB (5069): Fix bttv and friends on 64bit machines with lots of memory

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@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index f429f49..635d102 100644 (file)
--- 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 *vma, unsigned long vaddr,
                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);