Add support for --add-spare

--add-spare is like --add, but a --re-add is never attempted.
So it is equivalent to two separate commands:

 --zero-metadata
 --add

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

1 files changed, 4 insertions, 0 deletions

diff --git a/mdadm.c b/mdadm.c
index d3cf0fad..359e9f91 100644
--- a/mdadm.c
+++ b/mdadm.c
@@ -187,6 +187,7 @@ int main(int argc, char *argv[])
 			break;
 		case 'a':
 		case Add:
+		case AddSpare:
 		case 'r':
 		case Remove:
 		case Replace:
@@ -915,6 +916,9 @@ int main(int argc, char *argv[])
 		case O(MANAGE,Add): /* add a drive */
 			devmode = 'a';
 			continue;
+		case O(MANAGE,AddSpare): /* add drive - never re-add */
+			devmode = 'S';
+			continue;
 		case O(MANAGE,ReAdd):
 			devmode = 'A';
 			continue;