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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>
This commit is contained in:
Xiao Guangrong 2012-07-26 11:58:17 +08:00 committed by Avi Kivity
parent 3b2bd2f800
commit 2b4b5af8f8
1 changed files with 2 additions and 2 deletions
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4
virt/kvm/async_pf.c
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@ -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);
}
}