Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6a0f53ff authored by Chao Yu's avatar Chao Yu Committed by Shaohua Li
Browse files

raid5: fix to detect failure of register_shrinker 



register_shrinker can fail after commit 1d3d4437 ("vmscan: per-node
deferred work"), we should detect the failure of it, otherwise we may
fail to register shrinker after raid5 configuration was setup successfully.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
parent 90bcf133

drivers/md/raid5.c

+6 −1
Original line number Diff line number Diff line
@@ -6670,7 +6670,12 @@ static struct r5conf *setup_conf(struct mddev *mddev) 
	conf->shrinker.count_objects = raid5_cache_count;

	conf->shrinker.batch = 128;

	conf->shrinker.flags = 0;

	register_shrinker(&conf->shrinker);

	if (register_shrinker(&conf->shrinker)) {

		printk(KERN_ERR

		       "md/raid:%s: couldn't register shrinker.\n",

		       mdname(mddev));

		goto abort;

	}



	sprintf(pers_name, "raid%d", mddev->new_level);

	conf->thread = md_register_thread(raid5d, mddev, pers_name);