linux-kernel - Re: [RFC PATCH 2/2] mm: multi-gen LRU: cgroup working set stats

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Message-ID: <20230111141929.GB14685@blackbody.suse.cz>
Date:   Wed, 11 Jan 2023 15:19:29 +0100
From:   Michal Koutný <mkoutny@...e.com>
To:     Yuanchu Xie <yuanchu@...gle.com>
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Yu Zhao <yuzhao@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Muchun Song <songmuchun@...edance.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        cgroups@...r.kernel.org
Subject: Re: [RFC PATCH 2/2] mm: multi-gen LRU: cgroup working set stats

On Wed, Dec 14, 2022 at 02:51:23PM -0800, Yuanchu Xie <yuanchu@...gle.com> wrote:
> +static int memory_page_idle_age_format(struct mem_cgroup *root,
> +				       struct seq_file *m)
> +{
> +	struct mem_cgroup *memcg;
> +	unsigned long *table;
[...]
> +	table = kmalloc_array(PAGE_IDLE_AGE_NR_RANGES * nr_node_ids *
> +				      ANON_AND_FILE,
> +			      sizeof(*table), __GFP_ZERO | GFP_KERNEL);
> +
[...]
> +	memory_page_idle_age_print(m, table);
> +	return 0;

FTR, the table seems leaked here.


Michal

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