diff mbox

xen/gntdev: use vma_pages().

Message ID 1463836161-16524-2-git-send-email-falakreyaz@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Muhammad Falak R Wani May 21, 2016, 1:09 p.m. UTC 
Replace explicit computation of vma page count by a call to
vma_pages()

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
---
 drivers/xen/gntdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 6793957..bb95212 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;