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Subject[PATCH 35/46] KVM: Drop obsolete cpu_get/put in make_all_cpus_request
Date
From: Jan Kiszka <jan.kiszka@siemens.com>

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>
---
virt/kvm/kvm_main.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 532af9b..646cf2a 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;
}
--
1.6.4.1


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