diff options
| author | Nick Piggin <npiggin@suse.de> | 2007-12-07 17:57:38 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-25 19:03:18 -0200 |
| commit | 105354a0f0410d4715f38e67d5790dead5dafdad (patch) | |
| tree | ce1b29f0dd2f6382143358ac85d6ef50c41cc723 /drivers/media/video/videobuf-dma-sg.c | |
| parent | 14e3c152a14cb96b5f584d3885d2aedf1a1353fc (diff) | |
V4L/DVB (6748): Subject: v4l: nopage
Convert v4l from nopage to fault.
Remove redundant vma range checks.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/videobuf-dma-sg.c')
| -rw-r--r-- | drivers/media/video/videobuf-dma-sg.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c index 44ee408e145..eea5b4ecfc3 100644 --- a/drivers/media/video/videobuf-dma-sg.c +++ b/drivers/media/video/videobuf-dma-sg.c @@ -385,30 +385,26 @@ videobuf_vm_close(struct vm_area_struct *vma) * now ...). Bounce buffers don't work very well for the data rates * video capture has. */ -static struct page* -videobuf_vm_nopage(struct vm_area_struct *vma, unsigned long vaddr, - int *type) +static int +videobuf_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct page *page; - dprintk(3,"nopage: fault @ %08lx [vma %08lx-%08lx]\n", - vaddr,vma->vm_start,vma->vm_end); - if (vaddr > vma->vm_end) - return NOPAGE_SIGBUS; + dprintk(3,"fault: fault @ %08lx [vma %08lx-%08lx]\n", + (unsigned long)vmf->virtual_address,vma->vm_start,vma->vm_end); page = alloc_page(GFP_USER | __GFP_DMA32); if (!page) - return NOPAGE_OOM; + return VM_FAULT_OOM; clear_user_page(page_address(page), vaddr, page); - if (type) - *type = VM_FAULT_MINOR; - return page; + vmf->page = page; + return 0; } static struct vm_operations_struct videobuf_vm_ops = { .open = videobuf_vm_open, .close = videobuf_vm_close, - .nopage = videobuf_vm_nopage, + .fault = videobuf_vm_fault, }; /* --------------------------------------------------------------------- |