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 <[email protected]> Signed-off-by: Sven-Thorsten Dietrich <[email protected]> --- 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(); -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
