linux-kernel - Re: [PATCH 3/4] memcg: completely decouple memcg and obj stocks

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Message-ID: <5e54c286-7cac-4280-90b6-8ed15715871d@suse.cz>
Date: Wed, 30 Apr 2025 14:21:56 +0200
From: Vlastimil Babka <vbabka@...e.cz>
To: Shakeel Butt <shakeel.butt@...ux.dev>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: Johannes Weiner <hannes@...xchg.org>, Michal Hocko <mhocko@...nel.org>,
 Roman Gushchin <roman.gushchin@...ux.dev>,
 Muchun Song <muchun.song@...ux.dev>,
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>, linux-mm@...ck.org,
 cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
 Meta kernel team <kernel-team@...a.com>, bpf <bpf@...r.kernel.org>
Subject: Re: [PATCH 3/4] memcg: completely decouple memcg and obj stocks

On 4/30/25 01:04, Shakeel Butt wrote:
> Let's completely decouple the memcg and obj per-cpu stocks. This will
> enable us to make memcg per-cpu stocks to used without disabling irqs.
> Also it will enable us to make obj stocks nmi safe independently which
> is required to make kmalloc/slab safe for allocations from nmi context.
> 
> Signed-off-by: Shakeel Butt <shakeel.butt@...ux.dev>

Acked-by: Vlastimil Babka <vbabka@...e.cz>