From: Hongfu Li <hongfu.li@linux.dev>
To: akpm@linux-foundation.org
Cc: cgroups@vger.kernel.org, hannes@cmpxchg.org, hongfu.li@linux.dev,
lihongfu@kylinos.cn, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, mhocko@kernel.org, muchun.song@linux.dev,
roman.gushchin@linux.dev, shakeel.butt@linux.dev
Subject: Re: [PATCH] mm/memcg: check kzalloc_node() return in memcg1_init()
Date: Wed, 22 Jul 2026 14:18:26 +0800 [thread overview]
Message-ID: <20260722061826.43420-1-hongfu.li@linux.dev> (raw)
In-Reply-To: <20260721171351.ec213c13afab38b89c14f849@linux-foundation.org>
> > rtpn = kzalloc_node(sizeof(*rtpn), GFP_KERNEL, node);
> > + if (!rtpn)
> > + continue;
> >
> > rtpn->rb_root = RB_ROOT;
> > rtpn->rb_rightmost = NULL;
>
> Thanks. We assume that mamory allocations cannot fail within __init
> code. Because if they do, the kernel has some ghastly problem and it
> cannot possibly run.
Understood, thanks for the clarification. I'll drop this patch.
Best regards,
Hongfu
prev parent reply other threads:[~2026-07-22 6:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-21 10:09 [PATCH] mm/memcg: check kzalloc_node() return in memcg1_init() Hongfu Li
2026-07-22 0:13 ` Andrew Morton
2026-07-22 6:18 ` Hongfu Li [this message]
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