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Date:   Fri, 15 Oct 2021 14:34:05 -0700
From:   Andrew Morton <>
To:     Vasily Averin <>
Cc:     Michal Hocko <>,
        Johannes Weiner <>,
        Vladimir Davydov <>,
        Shakeel Butt <>,
        Mel Gorman <>,
        Roman Gushchin <>,
        Uladzislau Rezki <>,
        Vlastimil Babka <>,,,,
Subject: Re: [PATCH mm v5] memcg: enable memory accounting in

On Thu, 14 Oct 2021 11:02:57 +0300 Vasily Averin <> wrote:

> Bulk page allocator is used in vmalloc where it can be called
> with __GFP_ACCOUNT and must charge allocated pages into memory cgroup.

Is this problem serious enough to justify -stable backporting?  Some
words which explaining reasoning for the backport would be helpful.

This patch makes Shakeel's "memcg: page_alloc: skip bulk allocator for
__GFP_ACCOUNT" unnecessary.  Which should we use?

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