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-rw-r--r--drivers/md/md.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index b2d8813ed71..292dad31d5e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1807,10 +1807,19 @@ md_mismatches = __ATTR_RO(mismatch_cnt);
static struct attribute *md_default_attrs[] = {
&md_level.attr,
&md_raid_disks.attr,
+ NULL,
+};
+
+static struct attribute *md_redundancy_attrs[] = {
&md_scan_mode.attr,
&md_mismatches.attr,
NULL,
};
+static struct attribute_group md_redundancy_group = {
+ .name = NULL,
+ .attrs = md_redundancy_attrs,
+};
+
static ssize_t
md_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
@@ -2047,6 +2056,8 @@ static int do_md_run(mddev_t * mddev)
bitmap_destroy(mddev);
return err;
}
+ if (mddev->pers->sync_request)
+ sysfs_create_group(&mddev->kobj, &md_redundancy_group);
atomic_set(&mddev->writes_pending,0);
mddev->safemode = 0;
mddev->safemode_timer.function = md_safemode_timeout;
@@ -2155,6 +2166,9 @@ static int do_md_stop(mddev_t * mddev, int ro)
set_disk_ro(disk, 0);
blk_queue_make_request(mddev->queue, md_fail_request);
mddev->pers->stop(mddev);
+ if (mddev->pers->sync_request)
+ sysfs_remove_group(&mddev->kobj, &md_redundancy_group);
+
module_put(mddev->pers->owner);
mddev->pers = NULL;
if (mddev->ro)