On Wed, May 19, 2010 at 13:40, David Woodhouse <dw...@infradead.org> wrote:
> On Wed, 2010-05-19 at 13:32 +0200, Geert Uytterhoeven wrote:
>> Instead of having (different) defaults in sl[aou]b, perhaps we should
>> just remove the defaults completely, to ensure all architectures set
>> ARCH_SLAB_MINALIGN to the correct value?
>
> What is 'correct'? The architecture sets it to the minimum value that it
> can cope with, according to its own alignment constraints (and DMA/cache
> constraints, in the case of ARCH_KMALLOC_MINALIGN).
>
> Some architectures don't _have_ any minimum required alignment, so they
> have no need to set it. If the architecture _does_ specify a minimum,
> the allocators must honour it. Otherwise, they're free to do their own
> thing. And slob chooses to use a smaller alignment than slab and slub
> do, in accordance with its design and its raison d'ĂȘtre.

Currently 7 out of 20+ architectures set it.
Any bets on how many are missing, but should set it?

Gr{oetje,eeting}s,

                                                Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@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
--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to