linux-kernel - Re: [PATCH V2 2/3] x86/numa_emulation: assign physnode_mask directly from numa_nodes

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Message-ID: <20170626231226.GB53180@WeideMacBook-Pro.local>
Date:   Tue, 27 Jun 2017 07:12:26 +0800
From:   Wei Yang <richard.weiyang@...il.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Wei Yang <richard.weiyang@...il.com>, kirill@...temov.name,
        tglx@...utronix.de, mingo@...hat.com, hpa@...or.com, tj@...nel.org,
        rientjes@...gle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 2/3] x86/numa_emulation: assign physnode_mask directly
 from numa_nodes_parsed

On Mon, Jun 26, 2017 at 08:40:26PM +0200, Borislav Petkov wrote:
>On Tue, May 02, 2017 at 09:04:52PM +0800, Wei Yang wrote:
>> numa_init() has already called init_func(), which is responsible for
>> setting numa_nodes_parsed, so use this nodemask instead of re-finding it
>> when calling numa_emulation().
>> 
>> This patch gets the physnode_mask directly from numa_nodes_parsed. At
>> the same time, it corrects the comment of these two functions.
>> 
>> Signed-off-by: Wei Yang <richard.weiyang@...il.com>
>> Acked-by: David Rientjes <rientjes@...gle.com>
>> 
>> ---
>> v2: refresh the change log based on David Rientjes comment
>> ---
>>  arch/x86/mm/numa_emulation.c | 18 ++++++++----------
>>  1 file changed, 8 insertions(+), 10 deletions(-)
>> 
>> diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
>> index eb017c816de6..a6d01931b9a1 100644
>> --- a/arch/x86/mm/numa_emulation.c
>> +++ b/arch/x86/mm/numa_emulation.c
>> @@ -75,13 +75,15 @@ static int __init emu_setup_memblk(struct numa_meminfo *ei,
>>  
>>  /*
>>   * Sets up nr_nodes fake nodes interleaved over physical nodes ranging from addr
>> - * to max_addr.  The return value is the number of nodes allocated.
>> + * to max_addr.
>> + *
>> + * Returns zero on success or negative error code.
>
>						     ... on error.
>
>Other than that:
>
>Reviewed-by: Borislav Petkov <bp@...e.de>
>

Thanks

>-- 
>Regards/Gruss,
>    Boris.
>
>Good mailing practices for 400: avoid top-posting and trim the reply.

-- 
Wei Yang
Help you, Help me

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