The patch titled
v4l: nopage
has been added to the -mm tree. Its filename is
v4l-nopage.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: v4l: nopage
From: Nick Piggin <npiggin@xxxxxxx>
Convert v4l from nopage to fault.
Remove redundant vma range checks.
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/media/video/videobuf-dma-sg.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
diff -puN drivers/media/video/videobuf-dma-sg.c~v4l-nopage drivers/media/video/videobuf-dma-sg.c
--- a/drivers/media/video/videobuf-dma-sg.c~v4l-nopage
+++ a/drivers/media/video/videobuf-dma-sg.c
@@ -385,30 +385,26 @@ videobuf_vm_close(struct vm_area_struct
* 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,
};
/* ---------------------------------------------------------------------
_
Patches currently in -mm which might be from npiggin@xxxxxxx are
mm-fix-xip-file-writes.patch
git-jfs.patch
nfs-use-gfp_nofs-preloads-for-radix-tree-insertion.patch
slub-use-non-atomic-bit-unlock.patch
radix-tree-avoid-atomic-allocations-for-preloaded-insertions.patch
mm-dont-allow-ioremapping-of-ranges-larger-than-vmalloc-space.patch
vt-bitlock-fix.patch
radix_treeh-trivial-comment-correction.patch
inotify-fix-race.patch
inotify-remove-debug-code.patch
rewrite-rd.patch
rewrite-rd-fix.patch
rd-support-xip.patch
reiser4.patch
ia64-ia32-nopage.patch
relay-nopage.patch
uio-nopage.patch
ieee1394-nopage.patch
v4l-nopage.patch
fb-defio-nopage.patch
agp-alpha-nopage.patch
sg-nopage.patch
ib-nopage.patch
usb-mon-nopage.patch
alsa-nopage.patch
alsa-usx2y-nopage.patch
mm-special-mapping-nopage.patch
-
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