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arm64: cpu hotplug: ensure we mask out CPU_TASKS_FROZEN in notifiers
[firefly-linux-kernel-4.4.55.git]
/
arch
/
arm64
/
kernel
/
debug-monitors.c
diff --git
a/arch/arm64/kernel/debug-monitors.c
b/arch/arm64/kernel/debug-monitors.c
index 9b3b62ac9c244ba91b9f7020ac7fe0dbb141c5ec..cebf78661a553775003bfee8ec89f65e33e3ec55 100644
(file)
--- a/
arch/arm64/kernel/debug-monitors.c
+++ b/
arch/arm64/kernel/debug-monitors.c
@@
-134,7
+134,7
@@
static int os_lock_notify(struct notifier_block *self,
unsigned long action, void *data)
{
int cpu = (unsigned long)data;
- if (
action
== CPU_ONLINE)
+ if (
(action & ~CPU_TASKS_FROZEN)
== CPU_ONLINE)
smp_call_function_single(cpu, clear_os_lock, NULL, 1);
return NOTIFY_OK;
}