mdadm: don't show cluster name once the bitmap is cleared

Don't show cluster name if bitmap is cleared.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>

diff --git a/super1.c b/super1.c
index 893f9bf6eb138eaf601bc0770befe2a608ea1085..332d492eb05f3c7aaf4ebfc433aef7f5122e6d23 100644 (file)
--- a/super1.c
+++ b/super1.c
@@ -324,7 +324,7 @@ static void examine_super1(struct supertype *st, char *homehost)
            strncmp(sb->set_name, homehost, l) == 0)
                printf("  (local to host %s)", homehost);
        printf("\n");
-       if (bms->nodes > 0)
+       if (bms->nodes > 0 && (__le32_to_cpu(sb->feature_map) & MD_FEATURE_BITMAP_OFFSET))
                printf("   Cluster Name : %-64s\n", bms->cluster_name);
        atime = __le64_to_cpu(sb->ctime) & 0xFFFFFFFFFFULL;
        printf("  Creation Time : %.24s\n", ctime(&atime));
@@ -780,7 +780,7 @@ static void detail_super1(struct supertype *st, char *homehost)
            sb->set_name[l] == ':' &&
            strncmp(sb->set_name, homehost, l) == 0)
                printf("  (local to host %s)", homehost);
-       if (bms->nodes > 0)
+       if (bms->nodes > 0 && (__le32_to_cpu(sb->feature_map) & MD_FEATURE_BITMAP_OFFSET))
            printf("\n   Cluster Name : %-64s", bms->cluster_name);
        printf("\n           UUID : ");
        for (i=0; i<16; i++) {