linux-kernel - Re: [PATCH v2 2/9] KVM: MMU: introduce for_each_rmap

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Message-ID: <5551C99A.3020002@linux.intel.com>
Date:	Tue, 12 May 2015 17:36:26 +0800
From:	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
To:	Paolo Bonzini <pbonzini@...hat.com>
CC:	gleb@...nel.org, mtosatti@...hat.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/9] KVM: MMU: introduce for_each_rmap_spte()



On 05/12/2015 04:08 PM, Paolo Bonzini wrote:
>
>
> On 12/05/2015 04:32, Xiao Guangrong wrote:
>> -	while ((sptep = rmap_get_first(*rmapp, &iter))) {
>> -		BUG_ON(!(*sptep & PT_PRESENT_MASK));
>> +restart:
>> +	for_each_rmap_spte(rmapp, &iter, sptep) {
>>   		rmap_printk("kvm_rmap_unmap_hva: spte %p %llx gfn %llx (%d)\n",
>>   			     sptep, *sptep, gfn, level);
>>
>>   		drop_spte(kvm, sptep);
>>   		need_tlb_flush = 1;
>> +		goto restart;
>>   	}
>>
>
> For this one, I would keep using rmap_get_first.  Otherwise looks good.
>
> Paolo
>

Okay, will do.
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