scsi: sbitmap: Export sbitmap_weight

[linux-2.6-microblaze.git] / include / linux / sbitmap.h

diff --git a/include/linux/sbitmap.h b/include/linux/sbitmap.h
index 247776f..c65ba88 100644 (file)
--- a/include/linux/sbitmap.h
+++ b/include/linux/sbitmap.h
@@ -341,6 +341,16 @@ static inline int sbitmap_test_bit(struct sbitmap *sb, unsigned int bitnr)
  */
 void sbitmap_show(struct sbitmap *sb, struct seq_file *m);
 
+
+/**
+ * sbitmap_weight() - Return how many set and not cleared bits in a &struct
+ * sbitmap.
+ * @sb: Bitmap to check.
+ *
+ * Return: How many set and not cleared bits set
+ */
+unsigned int sbitmap_weight(const struct sbitmap *sb);
+
 /**
  * sbitmap_bitmap_show() - Write a hex dump of a &struct sbitmap to a &struct
  * seq_file.