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KVM: x86: Issue smp_call_function_many with preemption disabled

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smp_call_function_many is specified to be called only with preemption
disabled. Fulfill this requirement.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Jan Kiszka 2010-11-01 14:01:13 +01:00 committed by Marcelo Tosatti
parent 97e69aa62f
commit 453d9c57e2
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kvm/x86.c
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@ -3978,8 +3978,10 @@ int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu)
return X86EMUL_CONTINUE;
if (kvm_x86_ops->has_wbinvd_exit()) {
preempt_disable();
smp_call_function_many(vcpu->arch.wbinvd_dirty_mask,
wbinvd_ipi, NULL, 1);
preempt_enable();
cpumask_clear(vcpu->arch.wbinvd_dirty_mask);
}
wbinvd();