tree bed4ad81c3d8e8c169da070b63155578dd9b3b37
parent ef9f515a4c38c759c56c7d1e760cc243b6d516f4
author Libin <huawei.libin@huawei.com> 1372888887 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1372892846 -0700

uio: 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>