From: NeilBrown <neilb@suse.com>
Date: Mon, 28 Sep 2015 01:49:53 +0000 (+1000)
Subject: super1: Do not create bad block log for clustered devices.
X-Git-Tag: mdadm-3.4~54
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=86a406c2262e1db3309623413992eecbb9ee1ce3;p=thirdparty%2Fmdadm.git

super1: Do not create bad block log for clustered devices.

We currently have no synchronization techniques for the bad
block log, so disable it for the cluster.

Reported-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>
---

diff --git a/super1.c b/super1.c
index 52952eb4..6f422919 100644
--- a/super1.c
+++ b/super1.c
@@ -1701,7 +1701,8 @@ static int write_init_super1(struct supertype *st)
 			rv = -EINVAL;
 			goto out;
 		}
-		if (conf_get_create_info()->bblist == 0) {
+		/* Disable badblock log on clusters, or when explicitly requested */
+		if (st->nodes > 0 || conf_get_create_info()->bblist == 0) {
 			sb->bblog_size = 0;
 			sb->bblog_offset = 0;
 		}