uio: nopage

Convert uio from nopage to fault.

Signed-off-by: Nick Piggin <[e-mail]>
Acked-by: Hans J Koch <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/uio/uio.c

···
 	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)