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Date: Tue, 24 Apr 2012 11:34:31 +0800 From: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com> To: Marcelo Tosatti <mtosatti@...hat.com> CC: Xiao Guangrong <xiaoguangrong.eric@...il.com>, Avi Kivity <avi@...hat.com>, LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org> Subject: Re: [PATCH v3 5/9] KVM: MMU: introduce SPTE_WRITE_PROTECT bit On 04/24/2012 08:45 AM, Marcelo Tosatti wrote: >> I think it is not too hard to check. :) > > You are minimizing the possible impact these modifications have. > > Perhaps you should prepare code under mmu_lock to handle concurrent spte > R->W updates first, and then later introduce the concurrent updates. In > a way that its clear for somebody reading the code that parallel updates > can happen (say read spte once, work on local copy, later re-read spte). > Good idea. I will refine it in the next version. Thank you, Marcelo! :) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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