tree 5174bb512dde0009be5b4e9567da281bea2c38cd
parent 87d24fc3abb0666b23b6136d81dc29014b3c76dd
author Libin <huawei.libin@huawei.com> 1366030137 +0800
committer Dave Airlie <airlied@redhat.com> 1366082040 +1000

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>