kernel/cpuset.c: use register_hotmemory_notifier()
Use the new interface, remove one ifdef. No code size changes.
We could/should have been using __meminit/__meminitdata here but there's
now no point in doing that because all this code is elided at compile time.
Cc: Li Zefan <lizefan@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 4f9dfe4..334d983 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2251,7 +2251,6 @@
schedule_work(&cpuset_hotplug_work);
}
-#ifdef CONFIG_MEMORY_HOTPLUG
/*
* Keep top_cpuset.mems_allowed tracking node_states[N_MEMORY].
* Call this routine anytime after node_states[N_MEMORY] changes.
@@ -2263,20 +2262,23 @@
schedule_work(&cpuset_hotplug_work);
return NOTIFY_OK;
}
-#endif
+
+static struct notifier_block cpuset_track_online_nodes_nb = {
+ .notifier_call = cpuset_track_online_nodes,
+ .priority = 10, /* ??! */
+};
/**
* cpuset_init_smp - initialize cpus_allowed
*
* Description: Finish top cpuset after cpu, node maps are initialized
- **/
-
+ */
void __init cpuset_init_smp(void)
{
cpumask_copy(top_cpuset.cpus_allowed, cpu_active_mask);
top_cpuset.mems_allowed = node_states[N_MEMORY];
- hotplug_memory_notifier(cpuset_track_online_nodes, 10);
+ register_hotmemory_notifier(&cpuset_track_online_nodes_nb);
cpuset_propagate_hotplug_wq =
alloc_ordered_workqueue("cpuset_hotplug", 0);
