Create: default to bitmap=internal for large arrays.

Here, "large" means components are 100G or more.  It is
usually beneficial to have write-intent bitmaps on such arrays.
They can be suppressed with --bitmap=none

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

1 files changed, 0 insertions, 6 deletions

diff --git a/mdadm.c b/mdadm.c
index 214afa31..c4c5f294 100644
--- a/mdadm.c
+++ b/mdadm.c
@@ -1079,12 +1079,6 @@ int main(int argc, char *argv[])
 		case O(BUILD,Bitmap):
 		case O(CREATE,'b'):
 		case O(CREATE,Bitmap): /* here we create the bitmap */
-			if (strcmp(optarg, "none") == 0) {
-				pr_err("'--bitmap none' only"
-					" supported for --grow\n");
-				exit(2);
-			}
-			/* FALL THROUGH */
 		case O(GROW,'b'):
 		case O(GROW,Bitmap):
 			if (strcmp(optarg, "internal")== 0 ||