Am Wed, 05 Dec 2007 18:15:51 +1100
schrieb [EMAIL PROTECTED]:
> Convert uio from nopage to fault.
>
> Signed-off-by: Nick Piggin <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
Hi Nick,
could you please add me to Cc: for UIO stuff:
Cc: [EMAIL PROTECTED]
The patch itself looks alright to me, but I didn't test with a real
driver.
Acked-by: Hans J Koch <[EMAIL PROTECTED]>
Thanks,
Hans
> Cc: linux-kernel@vger.kernel.org
> ---
> drivers/uio/uio.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> Index: linux-2.6/drivers/uio/uio.c
> ===================================================================
> --- linux-2.6.orig/drivers/uio/uio.c
> +++ linux-2.6/drivers/uio/uio.c
> @@ -412,30 +412,28 @@ static void uio_vma_close(struct vm_area
> idev->vma_count--;
> }
>
> -static struct page *uio_vma_nopage(struct vm_area_struct *vma,
> - unsigned long address, int *type)
> +static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault
> *vmf) {
> struct uio_device *idev = vma->vm_private_data;
> - struct page* page = NOPAGE_SIGBUS;
> + struct page *page;
>
> int mi = uio_find_mem_index(vma);
> if (mi < 0)
> - return page;
> + return VM_FAULT_SIGBUS;
>
> if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL)
> page = virt_to_page(idev->info->mem[mi].addr);
> else
> page =
> vmalloc_to_page((void*)idev->info->mem[mi].addr); get_page(page);
> - if (type)
> - *type = VM_FAULT_MINOR;
> - return page;
> + vmf->page = page;
> + return 0;
> }
>
> static struct vm_operations_struct uio_vm_ops = {
> .open = uio_vma_open,
> .close = uio_vma_close,
> - .nopage = uio_vma_nopage,
> + .fault = uio_vma_fault,
> };
>
> static int uio_mmap_physical(struct vm_area_struct *vma)
>
--
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