From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [patch 10/10] KVM: MMU: speed up mmu_unsync_walk
Date: Sat, 20 Sep 2008 21:45:40 -0300
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Cc: Avi Kivity <avi@qumranet.com>, kvm@vger.kernel.org,
	"David S. Ahern" <daahern@cisco.com>
To: Avi Kivity <avi@redhat.com>
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On Fri, Sep 19, 2008 at 06:26:56PM -0700, Avi Kivity wrote:
>>  --- kvm.orig/include/asm-x86/kvm_host.h
>> +++ kvm/include/asm-x86/kvm_host.h
>> @@ -201,6 +201,7 @@ struct kvm_mmu_page {
>>  		u64 *parent_pte;               /* !multimapped */
>>  		struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
>>  	};
>> +	DECLARE_BITMAP(unsync_child_bitmap, 512);
>>  };
>>  
>
> Later, we can throw this bitmap out to a separate object. 

Yeah.

> Also, it may make sense to replace it with an array of u16s.

Why?