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Message-Id: <1228736216-15787-36-git-send-email-avi@redhat.com> Date: Mon, 8 Dec 2008 13:36:46 +0200 From: Avi Kivity <avi@...hat.com> To: kvm@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Xiantao Zhang <xiantao.zhang@...el.com> Subject: [PATCH 35/45] KVM: ia64: Remove lock held by halted vcpu From: Xiantao Zhang <xiantao.zhang@...el.com> Remove the lock protection for kvm halt logic, otherwise, once other vcpus want to acquire the lock, and they have to wait all vcpus are waken up from halt. Signed-off-by: Xiantao Zhang <xiantao.zhang@...el.com> Signed-off-by: Avi Kivity <avi@...hat.com> --- arch/ia64/kvm/kvm-ia64.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 43e45f6..70eb829 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -439,7 +439,6 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu) expires = div64_u64(itc_diff, cyc_per_usec); kt = ktime_set(0, 1000 * expires); - down_read(&vcpu->kvm->slots_lock); vcpu->arch.ht_active = 1; hrtimer_start(p_ht, kt, HRTIMER_MODE_ABS); @@ -452,7 +451,6 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu) if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED) vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; - up_read(&vcpu->kvm->slots_lock); if (vcpu->arch.mp_state != KVM_MP_STATE_RUNNABLE) return -EINTR; -- 1.6.0.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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