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

On 5/23/23 11:22, Geert Uytterhoeven wrote:

Hi Vlastimil,

Thanks for your patch!

On Tue, May 23, 2023 at 11:12 AM Vlastimil Babka [off-list ref] wrote:

quoted

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?

Well, it doesn't, but I thought it's at least a useful heads-up for the
maintainers in case some have specific reasons for keeping SLAB there.

And it removes one more sync point indicating the last time some
defconfig files were (not) updated by their maintainers ;-)

Sure, I can exclude yours (and anyone else who'd prefer that), the ack on
the deprecation itself is sufficient.

quoted

[1] https://lore.kernel.org/all/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz/ (local)
[2] https://lwn.net/Articles/932201/

Signed-off-by: Vlastimil Babka <redacted>

quoted

 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>

Thanks!

Gr{oetje,eeting}s,

                        Geert