linux-kernel - Re: [PATCH 6/6] memcg: do not tweak node in alloc_mem_cgroup_per_node

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Message-ID: <20220201024544.p2iqj2mz7bgq4pf3@master>
Date:   Tue, 1 Feb 2022 02:45:44 +0000
From:   Wei Yang <richard.weiyang@...il.com>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>,
        David Hildenbrand <david@...hat.com>,
        Alexey Makhalov <amakhalov@...are.com>,
        Dennis Zhou <dennis@...nel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Oscar Salvador <osalvador@...e.de>, Tejun Heo <tj@...nel.org>,
        Christoph Lameter <cl@...ux.com>,
        Nico Pache <npache@...hat.com>,
        Wei Yang <richard.weiyang@...il.com>,
        Rafael Aquini <raquini@...hat.com>,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [PATCH 6/6] memcg: do not tweak node in
 alloc_mem_cgroup_per_node_info

On Thu, Jan 27, 2022 at 09:53:05AM +0100, Michal Hocko wrote:
>From: Wei Yang <richard.weiyang@...il.com>
>
>alloc_mem_cgroup_per_node_info is allocated for each possible node and
>this used to be a problem because not !node_online nodes didn't have
                                   ^^^ a typo here?

				   !node_online nodes is enough?

>appropriate data structure allocated. This has changed by "mm: handle
>uninitialized numa nodes gracefully" so we can drop the special casing
>here.
>
>Signed-off-by: Wei Yang <richard.weiyang@...il.com>
>Signed-off-by: Michal Hocko <mhocko@...e.com>

-- 
Wei Yang
Help you, Help me