Add subarray field to supertype.

When loading the metadata for a subarray (super_by_fd), we set
->subarray to be the name read from md/metadata_version so that
getinfo_super can return info about the correct array.

With this we can differentiate between a container and
an array within the container by looking at ->subarray[0].

1 files changed, 1 insertions, 1 deletions

diff --git a/mdadm.h b/mdadm.h
index 97569fa..c728bad 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -563,6 +563,7 @@ struct supertype {
 	int minor_version;
 	int max_devs;
 	int container_dev;    /* devnum of container */
+	char subarray[32];	/* name of array inside container */
 	void *sb;
 	void *info;
 
@@ -582,7 +583,6 @@ struct supertype {
 
 };
 
-extern struct supertype supertype_container_member;
 extern struct supertype *super_by_fd(int fd);
 extern struct supertype *guess_super(int fd);
 extern struct supertype *dup_super(struct supertype *st);