Initial DDF support code.

Create a ddf array by naming the device /dev/ddf* or
specifying metadata 'ddf'.

If ddf is specified with no level, assume a container (indeed,
anything else would be wrong).

**Need to use text_Version to set external metadata...

More ddf support

Load a ddf container.  Now
   --examine /dev/ddf
works.
super-ddf: fix compile warning

From: Dan Williams <dan.j.williams@intel.com>

super-ddf.c:723: format %lu expects type long unsigned int, but argument 3 has type unsigned int

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/Create.c b/Create.c
index 6e58b53..1099dcb 100644
--- a/Create.c
+++ b/Create.c
@@ -93,6 +93,14 @@ int Create(struct supertype *st, char *mddev, int mdfd,
 		}
 	}
 	if (level == UnSet) {
+		/* "ddf" metadata only supports one level - should possibly
+		 * push this into metadata handler??
+		 */
+		if (st && st->ss == &super_ddf)
+			level = LEVEL_CONTAINER;
+	}
+
+	if (level == UnSet) {
 		fprintf(stderr,
 			Name ": a RAID level is needed to create an array.\n");
 		return 1;