linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] kvm: do not need hardware_disable when CPU_UP_CANCELED
@ 2010-04-17  9:00 Lai Jiangshan
  2010-04-21  8:41 ` Avi Kivity
  0 siblings, 1 reply; 2+ messages in thread
From: Lai Jiangshan @ 2010-04-17  9:00 UTC (permalink / raw)
  To: Avi Kivity, Marcelo Tosatti, LKML, kvm


When CPU_UP_CANCELED, hardware_enable() has not been called at the CPU
which is going up because raw_notifier_call_chain(CPU_ONLINE)
has not been called for this cpu.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5a0cd19..b03f863 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1921,11 +1921,6 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 		       cpu);
 		hardware_disable(NULL);
 		break;
-	case CPU_UP_CANCELED:
-		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
-		       cpu);
-		smp_call_function_single(cpu, hardware_disable, NULL, 1);
-		break;
 	case CPU_ONLINE:
 		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
 		       cpu);




^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] kvm: do not need hardware_disable when CPU_UP_CANCELED
  2010-04-17  9:00 [PATCH] kvm: do not need hardware_disable when CPU_UP_CANCELED Lai Jiangshan
@ 2010-04-21  8:41 ` Avi Kivity
  0 siblings, 0 replies; 2+ messages in thread
From: Avi Kivity @ 2010-04-21  8:41 UTC (permalink / raw)
  To: Lai Jiangshan; +Cc: Marcelo Tosatti, LKML, kvm

On 04/17/2010 12:00 PM, Lai Jiangshan wrote:
> When CPU_UP_CANCELED, hardware_enable() has not been called at the CPU
> which is going up because raw_notifier_call_chain(CPU_ONLINE)
> has not been called for this cpu.
>    

Applied, thanks.

-- 
error compiling committee.c: too many arguments to function


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2010-04-21  8:41 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-04-17  9:00 [PATCH] kvm: do not need hardware_disable when CPU_UP_CANCELED Lai Jiangshan
2010-04-21  8:41 ` Avi Kivity

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).