We used raise_barrier to suspend nornal IO while we reconfigure the
array. Now we replace it with freeze_array.
Raise_barrier only suspends normal IO. But freeze_array not only susend
nornal io,but it can suspend resync io. For the place where call
raise_barrier for reconfigure, it don't has a problem.
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
atomic_read(&bitmap->behind_writes) == 0);
}
- raise_barrier(conf);
- lower_barrier(conf);
+ freeze_array(conf, 0);
+ unfreeze_array(conf);
md_unregister_thread(&mddev->thread);
if (conf->r1bio_pool)
wake_up(&conf->wait_barrier);
break;
case 1:
- raise_barrier(conf);
+ freeze_array(conf, 0);
break;
case 0:
- lower_barrier(conf);
+ unfreeze_array(conf);
break;
}
}