linux-kernel - Re: [PATCH v3 1/3] memcontrol: add helpers for hugetlb memcg accounting

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Message-ID: <20231003124728.GA17012@cmpxchg.org>
Date:   Tue, 3 Oct 2023 08:47:28 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Nhat Pham <nphamcs@...il.com>
Cc:     akpm@...ux-foundation.org, riel@...riel.com, mhocko@...nel.org,
        roman.gushchin@...ux.dev, shakeelb@...gle.com,
        muchun.song@...ux.dev, tj@...nel.org, lizefan.x@...edance.com,
        shuah@...nel.org, mike.kravetz@...cle.com, yosryahmed@...gle.com,
        fvdl@...gle.com, linux-mm@...ck.org, kernel-team@...a.com,
        linux-kernel@...r.kernel.org, cgroups@...r.kernel.org
Subject: Re: [PATCH v3 1/3] memcontrol: add helpers for hugetlb memcg
 accounting

On Mon, Oct 02, 2023 at 05:18:26PM -0700, Nhat Pham wrote:
> This patch exposes charge committing and cancelling as parts of the
> memory controller interface. These functionalities are useful when the
> try_charge() and commit_charge() stages have to be separated by other
> actions in between (which can fail). One such example is the new hugetlb
> accounting behavior in the following patch.
> 
> The patch also adds a helper function to obtain a reference to the
> current task's memcg.
> 
> Signed-off-by: Nhat Pham <nphamcs@...il.com>

Acked-by: Johannes Weiner <hannes@...xchg.org>