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From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
To: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Avi Kivity <avi@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: [PATCH v2 2/3] KVM: use kvm_release_page_clean to release the page
Date: Thu, 26 Jul 2012 11:58:17 +0800	[thread overview]
Message-ID: <5010C059.50007@linux.vnet.ibm.com> (raw)
In-Reply-To: <5010C008.4030304@linux.vnet.ibm.com>

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

  parent reply	other threads:[~2012-07-26  3:58 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26  3:56 [PATCH v2 0/3] KVM: remove dummy pages Xiao Guangrong
2012-07-26  3:57 ` [PATCH v2 1/3] KVM: MMU: use kvm_release_pfn_clean to release pfn Xiao Guangrong
2012-07-26  3:58 ` Xiao Guangrong [this message]
2012-07-26  3:58 ` [PATCH v2 3/3] KVM: remove dummy pages Xiao Guangrong
2012-07-26  8:56   ` Avi Kivity
2012-07-26  9:20     ` Takuya Yoshikawa
2012-07-26  9:35       ` Xiao Guangrong
2012-07-26  9:52         ` Takuya Yoshikawa
2012-07-26  9:25     ` Xiao Guangrong

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