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SubjectRe: Linux 3.4-rc7
On 05/15/2012 11:59 PM, Srivatsa S. Bhat wrote:

> On 05/15/2012 10:54 PM, Linus Torvalds wrote:
>
>> On Sun, May 13, 2012 at 5:42 PM, John David Anglin <dave.anglin@bell.net> wrote:
>>>
>>> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp). My
>>> build also
>>> included cache and other fixes that are being discussed on the parisc list.
>>
>> Can somebody send the final patches with proper subject lines etc,
>> instead of hiding them in unrelated threads? I hate picking up patches
>> that I don't personally know from the middle of some random thread.
>>
>
>
> Okay, here they are:
>


This one is for mn10300:

---
From: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Subject: [PATCH] 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>
---
arch/mn10300/kernel/smp.c | 9 ++++++---
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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