linux-kernel - Re: [PATCH 1/3] sched: topology: add input parameter for sched_domain_flags

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Date:   Tue, 29 Mar 2022 11:23:30 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Qing Wang <wangqing@...o.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 1/3] sched: topology: add input parameter for
 sched_domain_flags_f()

On Tue, Mar 29, 2022 at 02:15:19AM -0700, Qing Wang wrote:
> From: Wang Qing <wangqing@...o.com>
> 
> sched_domain_flags_f() are statically set now, but actually, we can get a lot
> of necessary information based on the cpu_map. e.g. we can know whether its
> cache is shared.
> 
> Allows custom extension without affecting current.

Still NAK