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/20230417003919.930515-1-zhangpeng362@huawei.com
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
struct vm_area_struct *dst_vma;
dst_vma = find_vma(dst_mm, dst_start);
- if (!dst_vma)
- return NULL;
-
- if (dst_start < dst_vma->vm_start ||
- dst_start + len > dst_vma->vm_end)
+ if (!range_in_vma(dst_vma, dst_start, dst_start + len))
return NULL;
/*