Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / kernel / cpu.c

diff --git a/kernel/cpu.c b/kernel/cpu.c
index ff8bc38..92c2451 100644 (file)
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1025,12 +1025,13 @@ EXPORT_SYMBOL_GPL(cpu_up);
 #ifdef CONFIG_PM_SLEEP_SMP
 static cpumask_var_t frozen_cpus;
 
-int disable_nonboot_cpus(void)
+int freeze_secondary_cpus(int primary)
 {
-       int cpu, first_cpu, error = 0;
+       int cpu, error = 0;
 
        cpu_maps_update_begin();
-       first_cpu = cpumask_first(cpu_online_mask);
+       if (!cpu_online(primary))
+               primary = cpumask_first(cpu_online_mask);
        /*
         * We take down all of the non-boot CPUs in one shot to avoid races
         * with the userspace trying to use the CPU hotplug at the same time
@@ -1039,7 +1040,7 @@ int disable_nonboot_cpus(void)
 
        pr_info("Disabling non-boot CPUs ...\n");
        for_each_online_cpu(cpu) {
-               if (cpu == first_cpu)
+               if (cpu == primary)
                        continue;
                trace_suspend_resume(TPS("CPU_OFF"), cpu, true);
                error = _cpu_down(cpu, 1, CPUHP_OFFLINE);