linux-kernel - Re: [PATCH v17 1/3] proc: add /proc/<pid>/arch

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Message-ID: <4456cc68-5120-e820-90ed-cb5b5dfcd760@linux.intel.com>
Date:   Thu, 25 Apr 2019 18:42:04 +0800
From:   "Li, Aubrey" <aubrey.li@...ux.intel.com>
To:     "Enrico Weigelt, metux IT consult" <lkml@...ux.net>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     mingo@...hat.com, peterz@...radead.org, hpa@...or.com,
        ak@...ux.intel.com, tim.c.chen@...ux.intel.com,
        dave.hansen@...el.com, arjan@...ux.intel.com, adobriyan@...il.com,
        akpm@...ux-foundation.org, aubrey.li@...el.com,
        linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Lutomirski <luto@...nel.org>
Subject: Re: [PATCH v17 1/3] proc: add /proc/<pid>/arch_status

On 2019/4/25 18:11, Enrico Weigelt, metux IT consult wrote:
> On 25.04.19 03:50, Li, Aubrey wrote:
> 
>>>> +>>> +config PROC_PID_ARCH_STATUS>>> +	bool "Enable
> /proc/<pid>/arch_status file">>>> Why is this switchable? x86 selects it
> if PROC_FS is enabled and all other>> architectures are absolutely not
> interested in this.> > Above and this, I was trying to avoid an empty
> arch_file on other architectures.> In previous proposal the entry only
> exists on the platform with AVX512.
> Why not making it depend on those archs that actually support it ?

Yep, I'll make it disabled by default and not switchable and let arch select it.