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xen: use vma_pages(). 

Replace explicit computation of vma page count by a call to
vma_pages().

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Muhammad Falak R Wani 2016-05-24 05:34:32 +05:30 committed by David Vrabel
parent 0cac5c3018
commit c7ebf9d9c6
3 changed files with 3 additions and 3 deletions
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2
drivers/xen/gntalloc.c
View File

@ -504,7 +504,7 @@ static int gntalloc_mmap(struct file *filp, struct vm_area_struct *vma)
struct gntalloc_file_private_data *priv = filp->private_data;
struct gntalloc_vma_private_data *vm_priv;
struct gntalloc_gref *gref;
int count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
int count = vma_pages(vma);
int rv, i;
if (!(vma->vm_flags & VM_SHARED)) {

2
drivers/xen/gntdev.c
View File

@ -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;

2
drivers/xen/privcmd.c
View File

@ -582,7 +582,7 @@ static long privcmd_ioctl(struct file *file,
static void privcmd_close(struct vm_area_struct *vma)
{
struct page **pages = vma->vm_private_data;
int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
int numpgs = vma_pages(vma);
int numgfns = (vma->vm_end - vma->vm_start) >> XEN_PAGE_SHIFT;
int rc;