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    Subject[PATCH v2 2/3] 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>
    ---
    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


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