Acked-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
On Wed, Apr 08, 2009 at 01:58:56AM +0200, Jan Blunck wrote:
> This moves the get_cpu() call down to be called after we wake up the
> waiters. Therefore the waitqueue locks can savely be rt mutex.
>
> Signed-off-by: Jan Blunck <jblunck@xxxxxxx>
> Signed-off-by: Sven-Thorsten Dietrich <sven@xxxxxxxxxxxxxxxxxxxxx>
> ---
> arch/x86/kvm/x86.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> Index: b/arch/x86/kvm/x86.c
> ===================================================================
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -4229,7 +4229,7 @@ static void vcpu_kick_intr(void *info)
> void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
> {
> int ipi_pcpu = vcpu->cpu;
> - int cpu = get_cpu();
> + int cpu;
>
> if (waitqueue_active(&vcpu->wq)) {
> wake_up_interruptible(&vcpu->wq);
> @@ -4239,6 +4239,7 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu
> * We may be called synchronously with irqs disabled in guest mode,
> * So need not to call smp_call_function_single() in that case.
> */
> + cpu = get_cpu();
> if (vcpu->guest_mode && vcpu->cpu != cpu)
> smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0);
> put_cpu();
>
>
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