From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: linux-parisc@xxxxxxxxxxxxxxx
---
arch/parisc/Kconfig | 1 +
arch/parisc/kernel/process.c | 4 ++--
arch/parisc/kernel/smp.c | 7 +++----
3 files changed, 6 insertions(+), 6 deletions(-)
---
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -57,6 +57,7 @@ config PARISC
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_REGS_AND_STACK_ACCESS_API
+ select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
select GENERIC_SCHED_CLOCK
select GENERIC_IRQ_MIGRATION if SMP
select HAVE_UNSTABLE_SCHED_CLOCK if SMP
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -166,8 +166,8 @@ void __noreturn arch_cpu_idle_dead(void)
local_irq_disable();
- /* Tell __cpu_die() that this CPU is now safe to dispose of. */
- (void)cpu_report_death();
+ /* Tell the core that this CPU is now safe to dispose of. */
+ cpuhp_ap_report_dead();
/* Ensure that the cache lines are written out. */
flush_cache_all_local();
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -500,11 +500,10 @@ int __cpu_disable(void)
void __cpu_die(unsigned int cpu)
{
pdc_cpu_rendezvous_lock();
+}
- if (!cpu_wait_death(cpu, 5)) {
- pr_crit("CPU%u: cpu didn't die\n", cpu);
- return;
- }
+void arch_cpuhp_cleanup_dead_cpu(unsigned int cpu)
+{
pr_info("CPU%u: is shutting down\n", cpu);
/* set task's state to interruptible sleep */
