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Commit 4ef8e5a1 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "ARM64: smp: Fix cpu_up() racing with sys_reboot"

parents 6e507d26 cb071736

arch/arm64/kernel/smp.c

+3 −3
Original line number Diff line number Diff line
@@ -790,7 +790,7 @@ void arch_irq_work_raise(void) 
 */

static void ipi_cpu_stop(unsigned int cpu)

{

	set_cpu_online(cpu, false);

	set_cpu_active(cpu, false);



	local_daif_mask();

	sdei_mask_local_cpu();
@@ -925,10 +925,10 @@ void smp_send_stop(void) 


	/* Wait up to one second for other CPUs to stop */

	timeout = USEC_PER_SEC;

	while (num_online_cpus() > 1 && timeout--)

	while (num_active_cpus() > 1 && timeout--)

		udelay(1);



	if (num_online_cpus() > 1)

	if (num_active_cpus() > 1)

		pr_warning("SMP: failed to stop secondary CPUs %*pbl\n",

			   cpumask_pr_args(cpu_online_mask));