1 files changed, 1 insertions, 0 deletions
diff --git a/mdadm.h b/mdadm.h
index 55e9e46..f1fe24f 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -930,6 +930,7 @@ extern int open_mddev(char *dev, int report_errors);
 extern int open_container(int fd);
 extern int is_container_member(struct mdstat_ent *ent, char *devname);
 extern int is_subarray_active(char *subarray, char *devname);
+int is_container_active(char *devname);
 extern int open_subarray(char *dev, struct supertype *st, int quiet);
 extern struct superswitch *version_to_superswitch(char *vers);