linux-kernel - Re: [RESEND PATCH] sched/topology: Remove unused numa_distance in cpu_attach

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Date:   Mon, 04 Oct 2021 16:20:39 +0100
From:   Valentin Schneider <valentin.schneider@....com>
To:     Yicong Yang <yangyicong@...ilicon.com>, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, 21cnbao@...il.com
Cc:     linux-kernel@...r.kernel.org, song.bao.hua@...ilicon.com,
        prime.zeng@...wei.com, yangyicong@...ilicon.com
Subject: Re: [RESEND PATCH] sched/topology: Remove unused numa_distance in cpu_attach_domain()

On 15/09/21 14:31, Yicong Yang wrote:
> numa_distance in cpu_attach_domain() is introduced in
> commit b5b217346de8 ("sched/topology: Warn when NUMA diameter > 2")
> to warn user when NUMA diameter > 2 as we'll misrepresent
> the scheduler topology structures at that time. This is
> fixed by Barry in commit 585b6d2723dc ("sched/topology: fix the issue
> groups don't span domain->span for NUMA diameter > 2") and
> numa_distance is unused now. So remove it.
>

Ah, 585b6d2723dc didn't contain a proper revert of b5b217346de8, leaving
those hunks behind.

Reviewed-by: Valentin Schneider <valentin.schneider@....com>