linux-kernel - Re: [PATCH v2] memcg: add per-memcg vmalloc stat

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Message-ID: <YcPfy6PwapNz0Hz/@casper.infradead.org>
Date:   Thu, 23 Dec 2021 02:32:43 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Roman Gushchin <guro@...com>
Cc:     Shakeel Butt <shakeelb@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Muchun Song <songmuchun@...edance.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] memcg: add per-memcg vmalloc stat

On Wed, Dec 22, 2021 at 06:02:55PM -0800, Roman Gushchin wrote:
> It's a bid sad that this counter will partially intersect with others
> (e.g. percpu and stack), but I don't see how it can be easily fixed.

If it's worth fixing, we could add a VM_NO_ACCT flag?