mdopen: use small sequence number for uniquifying array names.

Rather than appending the md minor number, we now append a small
sequence number to make sure name in /dev/md/ that aren't LOCAL are
unique.  As the map file is locked while we do this, we are sure
of no losing any races.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/mdassemble.c b/mdassemble.c
index 02afc2d..a680378 100644
--- a/mdassemble.c
+++ b/mdassemble.c
@@ -84,6 +84,10 @@ int map_update(struct map_ent **mpp, int devnum, char *metadata,
 {
 	return 0;
 }
+struct map_ent *map_by_name(struct map_ent **mpp, char *name)
+{
+	return NULL;
+}
 
 int rv;
 int mdfd = -1;