md/raid5: Convert to hotplug state machine
Install the callbacks via the state machine and let the core invoke
the callbacks on the already online CPUs.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Neil Brown <neilb@suse.com>
Cc: linux-raid@vger.kernel.org
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160818125731.27256-10-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 517d4b6..57ec49f 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -512,9 +512,7 @@
} __percpu *percpu;
int scribble_disks;
int scribble_sectors;
-#ifdef CONFIG_HOTPLUG_CPU
- struct notifier_block cpu_notify;
-#endif
+ struct hlist_node node;
/*
* Free stripes pool