mdadm: add an environment variable to prevent auto-launching mdmon

Useful for attaching gdb to mdmon before any action is taken on the array.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/Create.c b/Create.c
index bef221a..c51b7eb 100644
--- a/Create.c
+++ b/Create.c
@@ -767,7 +767,7 @@ int Create(struct supertype *st, char *mddev, int mdfd,
 		if (verbose >= 0)
 			fprintf(stderr, Name ": array %s started.\n", mddev);
 		if (st->ss->external && st->subarray[0]) {
-			if (need_mdmon) {
+			if (need_mdmon && !env_no_mdmon()) {
 				int dn = st->container_dev;
 				int i;
 				switch(fork()) {