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authorSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>2012-05-16 00:32:37 +0530
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-15 18:16:57 -0700
commit568b44559d7ca269d367e694c74eb4436e7e3ccf (patch)
tree333478faa3142c3210f23224ce77408c16f1d4a2 /arch
parentec2e0f9811a2c667d06feecb413c57f74c6b84f4 (diff)
downloadop-kernel-dev-568b44559d7ca269d367e694c74eb4436e7e3ccf.zip
op-kernel-dev-568b44559d7ca269d367e694c74eb4436e7e3ccf.tar.gz
mn10300/CPU hotplug: Add missing call to notify_cpu_starting()
The scheduler depends on receiving the CPU_STARTING notification, without which we end up into a lot of trouble. So add the missing call to notify_cpu_starting() in the bringup code. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mn10300/kernel/smp.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 910dddf..9cd69ad 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/profile.h>
#include <linux/smp.h>
+#include <linux/cpu.h>
#include <asm/tlbflush.h>
#include <asm/bitops.h>
#include <asm/processor.h>
@@ -38,7 +39,6 @@
#include "internal.h"
#ifdef CONFIG_HOTPLUG_CPU
-#include <linux/cpu.h>
#include <asm/cacheflush.h>
static unsigned long sleep_mode[NR_CPUS];
@@ -874,10 +874,13 @@ static void __init smp_online(void)
cpu = smp_processor_id();
- local_irq_enable();
+ notify_cpu_starting(cpu);
+ ipi_call_lock();
set_cpu_online(cpu, true);
- smp_wmb();
+ ipi_call_unlock();
+
+ local_irq_enable();
}
/**
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