diff options
Diffstat (limited to 'virt/kvm/async_pf.c')
| -rw-r--r-- | virt/kvm/async_pf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 44660aee335f..77d42be6970e 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -94,6 +94,10 @@ static void async_pf_execute(struct work_struct *work) trace_kvm_async_pf_completed(addr, gva); + /* + * This memory barrier pairs with prepare_to_wait's set_current_state() + */ + smp_mb(); if (waitqueue_active(&vcpu->wq)) wake_up_interruptible(&vcpu->wq); |