diff --git a/utils/src/bitmap.c b/utils/src/bitmap.c
index 5e9ab615..c295b21a 100644
--- a/utils/src/bitmap.c
+++ b/utils/src/bitmap.c
@@ -10,6 +10,11 @@
  * Just a quick simple native bitmap.
  */
 
+int test_bit(unsigned long *bits, u64 nr)
+{
+	return !!(bits[nr / BITS_PER_LONG] & (1UL << (nr & (BITS_PER_LONG - 1))));
+}
+
 void set_bit(unsigned long *bits, u64 nr)
 {
 	bits[nr / BITS_PER_LONG] |= 1UL << (nr & (BITS_PER_LONG - 1));
diff --git a/utils/src/bitmap.h b/utils/src/bitmap.h
index 993bad4e..7b3ef927 100644
--- a/utils/src/bitmap.h
+++ b/utils/src/bitmap.h
@@ -1,6 +1,7 @@
 #ifndef _BITMAP_H_
 #define _BITMAP_H_
 
+int test_bit(unsigned long *bits, u64 nr);
 void set_bit(unsigned long *bits, u64 nr);
 void clear_bit(unsigned long *bits, u64 nr);
 u64 find_next_set_bit(unsigned long *start, u64 from, u64 total);