Create: Block automatic enabling bitmap for external metadata

For external metadata, bitmap should be added only when
explicitly set by the administrator.
They could be additional requirements to consider before
enabling the external metadata's functionality
(e.g., kernel support).

Signed-off-by: Jakub Radtke <jakub.radtke@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/Create.c b/Create.c
index b50cb246..18b5e646 100644
--- a/Create.c
+++ b/Create.c
@@ -540,6 +540,7 @@ int Create(struct supertype *st, char *mddev,
 	}
 
 	if (!s->bitmap_file &&
+	    !st->ss->external &&
 	    s->level >= 1 &&
 	    st->ss->add_internal_bitmap &&
 	    s->journaldisks == 0 &&