From c7ebf9d9c6b4e9402b978da0b0785db4129c1f79 Mon Sep 17 00:00:00 2001 From: Muhammad Falak R Wani Date: Tue, 24 May 2016 05:34:32 +0530 Subject: xen: use vma_pages(). Replace explicit computation of vma page count by a call to vma_pages(). Signed-off-by: Muhammad Falak R Wani Reviewed-by: Boris Ostrovsky Signed-off-by: David Vrabel --- drivers/xen/gntdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/xen/gntdev.c') diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 67939578cd6d..bb952121ea94 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -982,7 +982,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) { struct gntdev_priv *priv = flip->private_data; int index = vma->vm_pgoff; - int count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + int count = vma_pages(vma); struct grant_map *map; int i, err = -EINVAL; -- cgit v1.2.3