Grow: allow --data-offset to be specified for raid4/5/6

Previously it was rejected for non-RAID10.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/Grow.c b/Grow.c
index 3bd0b3ed..32776491 100644
--- a/Grow.c
+++ b/Grow.c
@@ -1540,7 +1540,8 @@ int Grow_reshape(char *devname, int fd,
 			devname);
 		return 1;
 	}
-	if (data_offset != INVALID_SECTORS && array.level != 10) {
+	if (data_offset != INVALID_SECTORS && array.level != 10
+	    && (array.level < 4 || array.level > 6)) {
 		pr_err("--grow --data-offset not yet supported\n");
 		return 1;
 	}