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authorXiantao Zhang <xiantao.zhang@intel.com>2008-10-23 07:03:38 (GMT)
committerAvi Kivity <avi@redhat.com>2008-12-31 14:51:49 (GMT)
commit853dafb62b386a3a75808483a120998e734eb6e1 (patch)
treeb18153869727ba2f81ac35726025af197d0a8f00 /arch/ia64
parenta917f7af3905953329361d29b6db78eb17b4d44c (diff)
downloadlinux-fsl-qoriq-853dafb62b386a3a75808483a120998e734eb6e1.tar.xz
KVM: ia64: Remove lock held by halted vcpu
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@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kvm/kvm-ia64.c2
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;