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Message-ID: <500D5A5D.8080703@linux.vnet.ibm.com>
Date: Mon, 23 Jul 2012 22:06:21 +0800
From: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
CC: Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: [PATCH 2/3] KVM: use kvm_release_page_clean to guest page
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@...ux.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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