linux-kernel - Re: [PATCH-cgroup v2] cgroup: Move rcu_head up near the top of cgroup

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Message-ID: <z7363pa5vy6trlioqe2eczgz2yfww2xqzxf3ocbqvgc4jvb7vk@rubf3ey4ktoh>
Date:   Thu, 7 Dec 2023 19:04:48 +0100
From:   Michal Koutný <mkoutny@...e.com>
To:     Waiman Long <longman@...hat.com>
Cc:     Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Yafang Shao <laoar.shao@...il.com>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Yosry Ahmed <yosryahmed@...gle.com>
Subject: Re: [PATCH-cgroup v2] cgroup: Move rcu_head up near the top of
 cgroup_root

On Thu, Dec 07, 2023 at 12:40:33PM -0500, Waiman Long <longman@...hat.com> wrote:
> CONFIG_LOCKDEP and some other debug configs are enabled with allmodconfig.

Interesting, I had CONFIG_LOCKDEP=y.

I shared the numbers to rule out you're after something unrelated

> However, I can reproduce the build failure and the patch is  able to
> fix it.

That is a good proof :-)
The patch makes sense for future robustness,

Reviewed-by: Michal Koutný <mkoutny@...e.com>

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