From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Mon, 20 Jul 2009 09:30:12 +0000 (+0200)
Subject: KVM: Drop obsolete cpu_get/put in make_all_cpus_request
X-Git-Tag: firefly_0821_release~12973^2~72
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e601e3be7a5324fcfd34fdb8796688cfe48bd0fe;p=firefly-linux-kernel-4.4.55.git

KVM: Drop obsolete cpu_get/put in make_all_cpus_request

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

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

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 532af9b41ee3..646cf2ae32fd 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;
 }