[COMMIT master] KVM: Drop obsolete cpu_get/put in make_all_cpus_request

[Avi Kivity]

From: Jan Kiszka <jan.kis...@siemens.com>

spin_lock disables preemption, so we can simply read the current cpu.

Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7cd1c10..98e4ec8 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -741,8 +741,8 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned 
int req)
        if (alloc_cpumask_var(&cpus, GFP_ATOMIC))
                cpumask_clear(cpus);
 
-       me = get_cpu();
        spin_lock(&kvm->requests_lock);
+       me = smp_processor_id();
        kvm_for_each_vcpu(i, vcpu, kvm) {
                if (test_and_set_bit(req, &vcpu->requests))
                        continue;
@@ -757,7 +757,6 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned 
int req)
        else
                called = false;
        spin_unlock(&kvm->requests_lock);
-       put_cpu();
        free_cpumask_var(cpus);
        return called;
 }
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