[PATCH 2/3] KVM: use kvm_release_page_clean to guest page

Xiao Guangrong
2012-07-23T14:06:30Z

In kvm_async_pf_wakeup_all, it uses bad_page to generate broadcast wakeup,
and use put_page to release the page, the work depends on 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 probably

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
---
virt/kvm/async_pf.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 74268b4..ebae24b 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);
}
}
--
1.7.7.6