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authorThomas Gleixner <tglx@linutronix.de>2012-05-08 14:07:48 +0200
committerThomas Gleixner <tglx@linutronix.de>2012-05-08 14:07:48 +0200
commit67ba5293f705eb1d1b98710e5ccb0f615936a6fc (patch)
treecdb4cfd94033b5c0f42eeb4de368802049880a12 /arch/arm/kernel/smp.c
parent86627c93b35082f7a0e4d3111546943984b932c7 (diff)
parentd909a81b198a397593495508c4a5755fe95552fb (diff)
downloadvexpress-lsk-67ba5293f705eb1d1b98710e5ccb0f615936a6fc.tar.gz
Merge branch 'smp/threadalloc' into smp/hotplug
Reason: Pull in the separate branch which was created so arch/tile can base further work on it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/arm/kernel/smp.c')
-rw-r--r--arch/arm/kernel/smp.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 5e86f7c4782..e8d7b1afa03 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -486,10 +486,6 @@ static void ipi_cpu_stop(unsigned int cpu)
local_fiq_disable();
local_irq_disable();
-#ifdef CONFIG_HOTPLUG_CPU
- platform_cpu_kill(cpu);
-#endif
-
while (1)
cpu_relax();
}
@@ -552,17 +548,25 @@ void smp_send_reschedule(int cpu)
smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
}
+#ifdef CONFIG_HOTPLUG_CPU
+static void smp_kill_cpus(cpumask_t *mask)
+{
+ unsigned int cpu;
+ for_each_cpu(cpu, mask)
+ platform_cpu_kill(cpu);
+}
+#else
+static void smp_kill_cpus(cpumask_t *mask) { }
+#endif
+
void smp_send_stop(void)
{
unsigned long timeout;
+ struct cpumask mask;
- if (num_online_cpus() > 1) {
- struct cpumask mask;
- cpumask_copy(&mask, cpu_online_mask);
- cpumask_clear_cpu(smp_processor_id(), &mask);
-
- smp_cross_call(&mask, IPI_CPU_STOP);
- }
+ cpumask_copy(&mask, cpu_online_mask);
+ cpumask_clear_cpu(smp_processor_id(), &mask);
+ smp_cross_call(&mask, IPI_CPU_STOP);
/* Wait up to one second for other CPUs to stop */
timeout = USEC_PER_SEC;
@@ -571,6 +575,8 @@ void smp_send_stop(void)
if (num_online_cpus() > 1)
pr_warning("SMP: failed to stop secondary CPUs\n");
+
+ smp_kill_cpus(&mask);
}
/*