diff options
| -rw-r--r-- | virt/kvm/async_pf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 100c66ee0220..74268b4c2ee1 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -196,7 +196,7 @@ int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu) { struct kvm_async_pf *work; - if (!list_empty(&vcpu->async_pf.done)) + if (!list_empty_careful(&vcpu->async_pf.done)) return 0; work = kmem_cache_zalloc(async_pf_cache, GFP_ATOMIC); @@ -207,7 +207,10 @@ int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu) get_page(bad_page); INIT_LIST_HEAD(&work->queue); /* for list_del to work */ + spin_lock(&vcpu->async_pf.lock); list_add_tail(&work->link, &vcpu->async_pf.done); + spin_unlock(&vcpu->async_pf.lock); + vcpu->async_pf.queued++; return 0; } |