1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/range.h b/include/linux/range.h
index 274681cc3154..7efb6a9b069b 100644
--- a/include/linux/range.h
+++ b/include/linux/range.h
@@ -13,6 +13,11 @@ static inline u64 range_len(const struct range *range)
 	return range->end - range->start + 1;
 }
 
+static inline bool range_contains(struct range *r1, struct range *r2)
+{
+	return r1->start <= r2->start && r1->end >= r2->end;
+}
+
 int add_range(struct range *range, int az, int nr_range,
 		u64 start, u64 end);