linux-kernel - Re: [PATCH v2 cgroup/for-5.20] cgroup: Replace cgroup->ancestor

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Message-ID: <YuRiQc35guAWcbjt@blackbook>
Date:   Sat, 30 Jul 2022 00:42:09 +0200
From:   Michal Koutný <mkoutny@...e.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     cgroups@...r.kernel.org, Zefan Li <lizefan.x@...edance.com>,
        Christian Brauner <brauner@...nel.org>,
        linux-kernel@...r.kernel.org, kernel-team@...com,
        Namhyung Kim <namhyung@...nel.org>,
        Pablo Neira Ayuso <pablo@...filter.org>
Subject: Re: [PATCH v2 cgroup/for-5.20] cgroup: Replace
 cgroup->ancestor_ids[] with ->ancestors[]

On Fri, Jul 29, 2022 at 10:58:22AM -1000, Tejun Heo <tj@...nel.org> wrote:
> @@ -520,8 +520,8 @@ struct cgroup_root {
>  	/* The root cgroup.  Root is destroyed on its release. */
>  	struct cgroup cgrp;
>  
> -	/* for cgrp->ancestor_ids[0] */
> -	u64 cgrp_ancestor_id_storage;
> +	/* for cgrp->ancestors[0] */
> +	u64 cgrp_ancestor_storage;

Just noticed, this member is (and was AFAICS) superfluous.


Michal