Use helper function range_in_vma() to check if address, address + size are
within the vma range.  Minor readability improvement.

Link: https://lkml.kernel.org/r/20220219021441.29173-1-linmiaohe@huawei.comSigned-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>