linux-kernel - Re: [PATCH 4/5] memcg: nmi-safe slab stats updates

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Message-ID: <2b57766f-d4ac-4193-8c00-27b558073934@suse.cz>
Date: Fri, 16 May 2025 11:44:14 +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>, Alexei Starovoitov <ast@...nel.org>,
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 Harry Yoo <harry.yoo@...cle.com>, Yosry Ahmed <yosry.ahmed@...ux.dev>,
 Peter Zijlstra <peterz@...radead.org>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, bpf@...r.kernel.org,
 linux-mm@...ck.org, cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
 Meta kernel team <kernel-team@...a.com>
Subject: Re: [PATCH 4/5] memcg: nmi-safe slab stats updates

On 5/16/25 08:49, Shakeel Butt wrote:
> The objcg based kmem [un]charging can be called in nmi context and it
> may need to update NR_SLAB_[UN]RECLAIMABLE_B stats. So, let's correctly
> handle the updates of these stats in the nmi context.
> 
> Signed-off-by: Shakeel Butt <shakeel.butt@...ux.dev>

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