linux-kernel - Re: [RFC PATCH v3 04/17] x86/resctrl: Introduce resctrl_file_fflags

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Date: Thu, 9 May 2024 19:23:58 -0500
From: "Moger, Babu" <bmoger@....com>
To: Reinette Chatre <reinette.chatre@...el.com>, babu.moger@....com,
 corbet@....net, fenghua.yu@...el.com, tglx@...utronix.de, mingo@...hat.com,
 bp@...en8.de, dave.hansen@...ux.intel.com
Cc: x86@...nel.org, hpa@...or.com, paulmck@...nel.org, rdunlap@...radead.org,
 tj@...nel.org, peterz@...radead.org, yanjiewtw@...il.com,
 kim.phillips@....com, lukas.bulwahn@...il.com, seanjc@...gle.com,
 jmattson@...gle.com, leitao@...ian.org, jpoimboe@...nel.org,
 rick.p.edgecombe@...el.com, kirill.shutemov@...ux.intel.com,
 jithu.joseph@...el.com, kai.huang@...el.com, kan.liang@...ux.intel.com,
 daniel.sneddon@...ux.intel.com, pbonzini@...hat.com, sandipan.das@....com,
 ilpo.jarvinen@...ux.intel.com, peternewman@...gle.com,
 maciej.wieczor-retman@...el.com, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, eranian@...gle.com, james.morse@....com
Subject: Re: [RFC PATCH v3 04/17] x86/resctrl: Introduce
 resctrl_file_fflags_init

Hi Reinette,

On 5/7/2024 3:27 PM, Reinette Chatre wrote:
> Hi Babu,
> 
> On 5/6/2024 1:23 PM, Moger, Babu wrote:
>> On 5/3/24 18:26, Reinette Chatre wrote:
>>> Hi Babu,
>>>
>>> In shortlog, please use () to indicate function:
>>> resctrl_file_fflags_init().
>>>
>>> On 3/28/2024 6:06 PM, Babu Moger wrote:
>>>> Consolidate multiple fflags initialization into one function.
>>>>
>>>> Remove thread_throttle_mode_init, mbm_config_rftype_init and
>>>> consolidate them into resctrl_file_fflags_init.
>>>
>>> This changelog has no context and only describes what the code does,
>>> which can be learned from reading the patch. Could you please
>>> update changelog with context and motivation for this change?
>> How about this?
>>
>> Consolidate multiple fflags initialization into one function.
>>
>> The functions thread_throttle_mode_init() and mbm_config_rftype_init()
>> both initialize fflags for resctrl files. This can be simplified into one
>> function passing the file name and flags to be initialized. It also helps
>> code simplification of new flags initialized for ABMC feature.
> 
> I am not sure what you intend here. Is this the entire intended changelog?
> I expected it to reflect x86 requirements as per
> Documentation/process/maintainer-tip.rst. Under "Changelog":
> 
> "It's also useful to structure the changelog into several paragraphs and not
> lump everything together into a single one. A good structure is to explain
> the context, the problem and the solution in separate paragraphs and this
> order."

I will try to elaborate this in next version.
Thanks
- Babu Moger