create_mddev: add support for /dev/md_XXX non-numeric names.

With the 'devnm' infrastructure fixed, it is quite easy to support
names like "md_home" for md arrays.
The currently defaults to "off" and can be enabled in mdadm.conf with
  CREATE names=yes
This is incase other tools get confused by the new names.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/mdadm.h b/mdadm.h
index c7b5183b..3139259d 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -257,6 +257,7 @@ struct createinfo {
 	int	autof;
 	int	mode;
 	int	symlinks;
+	int	names;
 	struct supertype *supertype;
 };