linux-kernel - Re: [PATCH v3 2/7] x86/resctrl: Remove few unnecessary rftype flags

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Date:   Thu, 16 Mar 2023 13:41:50 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     <babu.moger@....com>, <corbet@....net>, <tglx@...utronix.de>,
        <mingo@...hat.com>, <bp@...en8.de>
CC:     <fenghua.yu@...el.com>, <dave.hansen@...ux.intel.com>,
        <x86@...nel.org>, <hpa@...or.com>, <paulmck@...nel.org>,
        <akpm@...ux-foundation.org>, <quic_neeraju@...cinc.com>,
        <rdunlap@...radead.org>, <damien.lemoal@...nsource.wdc.com>,
        <songmuchun@...edance.com>, <peterz@...radead.org>,
        <jpoimboe@...nel.org>, <pbonzini@...hat.com>,
        <chang.seok.bae@...el.com>, <pawan.kumar.gupta@...ux.intel.com>,
        <jmattson@...gle.com>, <daniel.sneddon@...ux.intel.com>,
        <sandipan.das@....com>, <tony.luck@...el.com>,
        <james.morse@....com>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <bagasdotme@...il.com>,
        <eranian@...gle.com>, <christophe.leroy@...roup.eu>,
        <jarkko@...nel.org>, <adrian.hunter@...el.com>,
        <quic_jiles@...cinc.com>, <peternewman@...gle.com>
Subject: Re: [PATCH v3 2/7] x86/resctrl: Remove few unnecessary rftype flags

Hi Babu,

On 3/16/2023 1:31 PM, Moger, Babu wrote:
> On 3/15/23 13:33, Reinette Chatre wrote:
>> On 3/2/2023 12:24 PM, Babu Moger wrote:
>>> diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
>>> index 15ea5b550fe9..3c86506e54c1 100644
>>> --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
>>> +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
>>> @@ -3163,7 +3163,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
>>>  {
>>>  	struct rdtgroup *prdtgrp, *rdtgrp;
>>>  	struct kernfs_node *kn;
>>> -	uint files = 0;
>>> +	uint fflags = 0;
>>
>> Hoe does changing the variable name from "files" to "fflags" simplify
>> the code?
> 
> I should have said readability of the code. Its actually fflags we are
> passing to rdtgroup_add_files. While changing flags below, I changed the
> variable name to fflags.

You are correct in that it is the actual fflags parameter but what it
reflects is which files will be created. I do not find that using "files"
makes the code unreadable. 

Reinette