userfaultfd: use helper function range_in_vma()

We can use range_in_vma() to check if dst_start, dst_start + len are
within the dst_vma range.  Minor readability improvement.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: ZhangPeng <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Cc: Kefeng Wang <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Nanyong Sun <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions