uio: nopage

Convert uio from nopage to fault.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Hans J Koch <hjk@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 8 deletions

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index cc246faa3590..2a77e9d42c68 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -417,30 +417,28 @@ static void uio_vma_close(struct vm_area_struct *vma)
         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)