HOTPLUG: Adapt cpuset hotplug callback to CPU_DYING
CPU_DYING is called in atomic context, so don't try to take any locks.
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 4c49188..c4d123f 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2138,6 +2138,9 @@
static int cpuset_handle_cpuhp(struct notifier_block *nb,
unsigned long phase, void *cpu)
{
+ if (phase == CPU_DYING || phase == CPU_DYING_FROZEN)
+ return NOTIFY_DONE;
+
common_cpu_mem_hotplug_unplug();
return 0;
}