linux-kernel - Re: [PATCH v3 1/7] KVM: MMU: fix release noslot pfn

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Message-ID: <505FE8B4.8030309@linux.vnet.ibm.com>
Date:	Mon, 24 Sep 2012 12:59:32 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To:	Gleb Natapov <gleb@...hat.com>
CC:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH v3 1/7] KVM: MMU: fix release noslot pfn

On 09/23/2012 05:13 PM, Gleb Natapov wrote:
> On Fri, Sep 21, 2012 at 02:57:19PM +0800, Xiao Guangrong wrote:
>> We can not directly call kvm_release_pfn_clean to release the pfn
>> since we can meet noslot pfn which is used to cache mmio info into
>> spte
>>
> Wouldn't it be better to move the check into kvm_release_pfn_clean()?

I think there is no reason for us to prefer to adding this branch in
the common code. :)

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