Libin 025df77554 drm: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT ...

(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented
as a inline funcion vma_pages() in linux/mm.h, so using it.

Signed-off-by: Libin <huawei.libin@huawei.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

2013-04-16 13:14:00 +10:00

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