Re: [PATCH] mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED

From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>,
	Pekka Enberg <penberg@kernel.org>,
	 David Rientjes <rientjes@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	 Roman Gushchin <roman.gushchin@linux.dev>,
	Hyeonggon Yoo <42.hyeyoo@gmail.com>,
	 Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	 Vladimir Zapolskiy <vz@mleia.com>, Andrew Lunn <andrew@lunn.ch>,
	 Gregory Clement <gregory.clement@bootlin.com>,
	 Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Tony Lindgren <tony@atomide.com>,  Qin Jian <qinjian@cqplus1.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	 Dinh Nguyen <dinguyen@kernel.org>,
	 "James E . J . Bottomley"
	<James.Bottomley@hansenpartnership.com>,
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	linux-mm@kvack.org
Subject: Re: [PATCH] mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED
Date: Tue, 23 May 2023 11:22:04 +0200	[thread overview]
Message-ID: <CAMuHMdWRZmA1iEG2aXdKZ+wWgSTgg-P7KY7pTTJx9EmvuEa58A@mail.gmail.com> (raw)
In-Reply-To: <20230523091139.21449-1-vbabka@suse.cz>

Hi Vlastimil,

Thanks for your patch!

On Tue, May 23, 2023 at 11:12 AM Vlastimil Babka <vbabka@suse.cz> wrote:
> As discussed at LSF/MM [1] [2] and with no objections raised there,
> deprecate the SLAB allocator. Rename the user-visible option so that
> users with CONFIG_SLAB=y get a new prompt with explanation during make
> oldconfig, while make olddefconfig will just switch to SLUB.
>
> In all defconfigs with CONFIG_SLAB=y remove the line so those also
> switch to SLUB. Regressions due to the switch should be reported to
> linux-mm and slab maintainers.

Technically, removing these lines from the defconfig files does not
have any impact, right?
And it removes one more sync point indicating the last time some
defconfig files were (not) updated by their maintainers ;-)

> [1] https://lore.kernel.org/all/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz/
> [2] https://lwn.net/Articles/932201/
>
> Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

>  arch/m68k/configs/amiga_defconfig               |  1 -
>  arch/m68k/configs/apollo_defconfig              |  1 -
>  arch/m68k/configs/atari_defconfig               |  1 -
>  arch/m68k/configs/bvme6000_defconfig            |  1 -
>  arch/m68k/configs/hp300_defconfig               |  1 -
>  arch/m68k/configs/mac_defconfig                 |  1 -
>  arch/m68k/configs/multi_defconfig               |  1 -
>  arch/m68k/configs/mvme147_defconfig             |  1 -
>  arch/m68k/configs/mvme16x_defconfig             |  1 -
>  arch/m68k/configs/q40_defconfig                 |  1 -
>  arch/m68k/configs/sun3_defconfig                |  1 -
>  arch/m68k/configs/sun3x_defconfig               |  1 -

Regardless,
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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