linux-kernel - Re: [PATCH 8/8] KVM: MMU: remove PT64_SECOND_AVAIL_BITS

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Message-ID: <4EF3FE64.4070102@linux.vnet.ibm.com>
Date:	Fri, 23 Dec 2011 12:07:00 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.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 8/8] KVM: MMU: remove PT64_SECOND_AVAIL_BITS_SHIFT

On 12/18/2011 06:42 PM, Avi Kivity wrote:

> On 12/16/2011 12:18 PM, Xiao Guangrong wrote:
>> It is not used, remove it
>>
>> Signed-off-by: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
>> ---
>>  arch/x86/kvm/mmu.c |    1 -
>>  1 files changed, 0 insertions(+), 1 deletions(-)
>>
>> diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
>> index 5d0f0e3..234a32e 100644
>> --- a/arch/x86/kvm/mmu.c
>> +++ b/arch/x86/kvm/mmu.c
>> @@ -91,7 +91,6 @@ module_param(dbg, bool, 0644);
>>  #define PTE_PREFETCH_NUM		8
>>
>>  #define PT_FIRST_AVAIL_BITS_SHIFT 9
>> -#define PT64_SECOND_AVAIL_BITS_SHIFT 52
>>
>>
> 
> Don't see a reason to drop it, we may use it some day.
> 


Anyway, it is not used in currently code, I do not have strong opinion on it :)
Please ignore it if you do not like.

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