linux-kernel - Re: [PATCH v2 01/11] arch/x86: Start renaming the rdt files to more generic names

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Date:   Wed, 10 Oct 2018 18:06:17 +0000
From:   "Moger, Babu" <Babu.Moger@....com>
To:     Reinette Chatre <reinette.chatre@...el.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "fenghua.yu@...el.com" <fenghua.yu@...el.com>,
        "james.morse@....com" <james.morse@....com>,
        "vikas.shivappa@...ux.intel.com" <vikas.shivappa@...ux.intel.com>,
        "tony.luck@...el.com" <tony.luck@...el.com>
CC:     "x86@...nel.org" <x86@...nel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "pombredanne@...b.com" <pombredanne@...b.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "kstewart@...uxfoundation.org" <kstewart@...uxfoundation.org>,
        "bp@...e.de" <bp@...e.de>,
        "rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
        "ak@...ux.intel.com" <ak@...ux.intel.com>,
        "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "xiaochen.shen@...el.com" <xiaochen.shen@...el.com>,
        "colin.king@...onical.com" <colin.king@...onical.com>,
        "Hurwitz, Sherry" <sherry.hurwitz@....com>,
        "Lendacky, Thomas" <Thomas.Lendacky@....com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "dwmw@...zon.co.uk" <dwmw@...zon.co.uk>,
        "luto@...nel.org" <luto@...nel.org>,
        "jroedel@...e.de" <jroedel@...e.de>,
        "jannh@...gle.com" <jannh@...gle.com>,
        "dima@...sta.com" <dima@...sta.com>,
        "jpoimboe@...hat.com" <jpoimboe@...hat.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 01/11] arch/x86: Start renaming the rdt files to more
 generic names



On 10/10/2018 12:53 PM, Reinette Chatre wrote:
> Hi Babu,
> 
> On 10/10/2018 7:11 AM, Moger, Babu wrote:
>> On 10/09/2018 05:01 PM, Reinette Chatre wrote:
>>> On 10/9/2018 2:17 PM, Moger, Babu wrote:
>>>> On 10/09/2018 11:39 AM, Reinette Chatre wrote:
>>>>> On 10/5/2018 1:55 PM, Moger, Babu wrote:
>>>>>> New generation of AMD processors start support RDT(or QOS) features.
>>>>>> With more than one vendors supporting these features, it seems more
>>>>>> appropriate to rename these files.
>>>>>>
>>>>>> Signed-off-by: Babu Moger <babu.moger@....com>
>>>>>> ---
>>>>>>  arch/x86/include/asm/{intel_rdt_sched.h => rdt_sched.h}     | 0
>>>>>>  arch/x86/kernel/cpu/Makefile                                | 6 +++---
>>>>>>  arch/x86/kernel/cpu/{intel_rdt.c => rdt.c}                  | 4 ++--
>>>>>>  arch/x86/kernel/cpu/{intel_rdt.h => rdt.h}                  | 0
>>>>>>  .../cpu/{intel_rdt_ctrlmondata.c => rdt_ctrlmondata.c}      | 2 +-
>>>>>>  arch/x86/kernel/cpu/{intel_rdt_monitor.c => rdt_monitor.c}  | 2 +-
>>>>>>  .../cpu/{intel_rdt_pseudo_lock.c => rdt_pseudo_lock.c}      | 6 +++---
>>>>>>  ...ntel_rdt_pseudo_lock_event.h => rdt_pseudo_lock_event.h} | 2 +-
>>>>>>  .../x86/kernel/cpu/{intel_rdt_rdtgroup.c => rdt_rdtgroup.c} | 4 ++--
>>>>>>  arch/x86/kernel/process_32.c                                | 2 +-
>>>>>>  arch/x86/kernel/process_64.c                                | 2 +-
>>>>>>  11 files changed, 15 insertions(+), 15 deletions(-)
>>>>>>  rename arch/x86/include/asm/{intel_rdt_sched.h => rdt_sched.h} (100%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt.c => rdt.c} (99%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt.h => rdt.h} (100%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt_ctrlmondata.c => rdt_ctrlmondata.c} (99%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt_monitor.c => rdt_monitor.c} (99%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt_pseudo_lock.c => rdt_pseudo_lock.c} (99%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt_pseudo_lock_event.h => rdt_pseudo_lock_event.h} (95%)
>>>>>>  rename arch/x86/kernel/cpu/{intel_rdt_rdtgroup.c => rdt_rdtgroup.c} (99%)
>>>>>
>>>>> During the RFC it was agreed that "resctrl" will be the neutral name and
>>>>> "intel_rdt", "amd_qos", or "arm mpam" would be the vendor specific names.
>>>>>
>>>>> It is ok to delay that renaming but I think any renaming done from this
>>>>> point should respect this agreement.
>>>>>
>>>>> For example, if you want to rename intel_rdt.c then please rename it to
>>>>> resctrl.c instead of just rdt.c which does not represent a generic name
>>>>> as expressed as a goal in the subject of this patch.
>>>>
>>>> I knew this was going to bit tricky. I can change all the places where I
>>>> am touching the code to generic names(change from intel_rdt to "resctrl").
>>>
>>> Yes, "intel_rdt" can be changed to the generic "resctrl" when it is not
>>> vendor specific.
>>
>> Ok. sure.
>>
>>>
>>> As far as all the code you touch is concerned it may be easier and cause
>>> less confusion for now to just follow the current naming conventions as
>>> you have done in patches 3 onwards and have it be included in the later
>>> larger restructuring.
>>
>> Yes. I am making sure first 3 patches are renamed to "resctrl" wherever
>> applicable. Will send the patches soon.
>>
>> But I am confused about what you meant by "have it be included in the
>> later larger restructuring". Can you please elaborate?
> 
> I was referring to the restructuring that was discussed during your
> original RFC submission. Specifically,
> http://lkml.kernel.org/r/874cdcfb-26fa-2bdb-095d-b1b5a88250b9@amd.com
> http://lkml.kernel.org/r/9500445c-019d-9b77-0b51-48922bf47007@arm.com

Ok. Got it. Thanks.

> 
> Reinette
> 
> 
>