KVM: use kvm_release_page_clean to release the page

In kvm_async_pf_wakeup_all, it uses bad_page to generate broadcast wakeup,
and uses put_page to release bad_page, the work depends on the fact that
bad_page is the normal page. But we will use the error code instead of
bad_page, so use kvm_release_page_clean to release the page which will
release the error code properly

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 74268b4c2ee1..ebae24b62c90 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -112,7 +112,7 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu)
                                    typeof(*work), link);
                 list_del(&work->link);
                 if (work->page)
-                        put_page(work->page);
+                        kvm_release_page_clean(work->page);
                 kmem_cache_free(async_pf_cache, work);
         }
         spin_unlock(&vcpu->async_pf.lock);
@@ -139,7 +139,7 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu)
                 list_del(&work->queue);
                 vcpu->async_pf.queued--;
                 if (work->page)
-                        put_page(work->page);
+                        kvm_release_page_clean(work->page);
                 kmem_cache_free(async_pf_cache, work);
         }
 }