+/* sets the proper subarray and container_dev according to the metadata
+ * version super_by_fd does this automatically, this routine is meant as
+ * a supplement for guess_super()
+ */
+static char *get_member_info(struct mdstat_ent *ent)
+{
+
+ if (ent->metadata_version == NULL ||
+ strncmp(ent->metadata_version, "external:", 9) != 0)
+ return NULL;
+
+ if (is_subarray(&ent->metadata_version[9])) {
+ char *subarray;
+
+ subarray = strrchr(ent->metadata_version, '/');
+ return subarray + 1;
+ }
+ return NULL;
+}
+