linux-kernel - Re: [PATCH 1/4] cgroup: Eliminate cgrp_ancestor_storage in cgroup

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Message-ID: <aV1OhkWD9fZgrVtz@slm.duckdns.org>
Date: Tue, 6 Jan 2026 08:03:50 -1000
From: Tejun Heo <tj@...nel.org>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc: Michal Koutný <mkoutny@...e.com>,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
	David Laight <david.laight.linux@...il.com>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH 1/4] cgroup: Eliminate cgrp_ancestor_storage in
 cgroup_root

On Tue, Jan 06, 2026 at 04:06:47PM +0900, Gustavo A. R. Silva wrote:
> Instead of the above anonymous struct, we can use the DECLARE_FLEX_ARRAY()
> helper here:
> 
> 		DECLARE_FLEX_ARRAY(struct cgroup, *ancestors);

Michal, can you update the patch with the above and resend?

Thanks.

-- 
tejun