linux-kernel - Re: [PATCH RFC 11/19] slab: remove SLUB_CPU

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Message-ID: <CAADnVQ+TQZXhOhfG27kKdX8QUmua6AAqX81CnkS2W=4TANPUiA@mail.gmail.com>
Date: Wed, 29 Oct 2025 17:26:15 -0700
From: Alexei Starovoitov <alexei.starovoitov@...il.com>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Christoph Lameter <cl@...two.org>, 
	David Rientjes <rientjes@...gle.com>, Roman Gushchin <roman.gushchin@...ux.dev>, 
	Harry Yoo <harry.yoo@...cle.com>, Uladzislau Rezki <urezki@...il.com>, 
	"Liam R. Howlett" <Liam.Howlett@...cle.com>, Suren Baghdasaryan <surenb@...gle.com>, 
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Alexei Starovoitov <ast@...nel.org>, linux-mm <linux-mm@...ck.org>, 
	LKML <linux-kernel@...r.kernel.org>, linux-rt-devel@...ts.linux.dev, 
	bpf <bpf@...r.kernel.org>, kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: [PATCH RFC 11/19] slab: remove SLUB_CPU_PARTIAL

On Wed, Oct 29, 2025 at 3:31 PM Vlastimil Babka <vbabka@...e.cz> wrote:
>
> > but... since AI didn't find any bugs here, I must be wrong :)
> It's tricky. I think we could add a "bool was_partial == (prior != NULL)" or
> something to make it more obvious, that one is rather cryptic.

That would help. prior and !prior are hard to think about.
Your explanation makes sense. Thanks