linux-kernel - Re: [PATCH v2 19/22] KVM: MMU: lockless walking shadow page table

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Message-ID: <4E0B231B.4070808@cn.fujitsu.com>
Date:	Wed, 29 Jun 2011 21:05:31 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Avi Kivity <avi@...hat.com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH v2 19/22] KVM: MMU: lockless walking shadow page table

On 06/29/2011 09:01 PM, Avi Kivity wrote:
> On 06/29/2011 03:39 PM, Xiao Guangrong wrote:
>> >
>> >  Ok.  Let's drop the two paths, and put this improvement on the TODO instead.
>> >
>>
>> Avi, i am sorry, i do not understand it clearly, it means keep the patch as the
>> original way and do the improvement after it merged?
> 
> I mean, do all freeing using RCU and improve fork detection after merge.  I don't like the extra complexity and the extra atomic ops.
> 

Oh, i see, thanks! :-)
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