Re: [patch 00/10] (no)bootmem bits for 3.5

From: Johannes Weiner
Date: Mon May 07 2012 - 18:01:55 EST


On Mon, May 07, 2012 at 10:41:13PM +0200, Sam Ravnborg wrote:
> Hi Johannes.
>
> > here are some (no)bootmem fixes and cleanups for 3.5. Most of it is
> > unifying allocation behaviour across bootmem and nobootmem when it
> > comes to respecting the specified allocation address goal and numa.
> >
> > But also refactoring the codebases of the two bootmem APIs so that we
> > can think about sharing code between them again.
>
> Could you check up on CONFIG_HAVE_ARCH_BOOTMEM use in bootmem.c too?
> x86 no longer uses bootmem.c
> avr define it - but to n.
>
> So no-one is actually using this anymore.
> I have sent patches to remove it from Kconfig for both x86 and avr.
>
> I looked briefly at cleaning up bootmem.c myslef - but I felt not
> familiar enough with the code to do the cleanup.
>
> I did not check your patchset - but based on the shortlog you
> did not kill HAVE_ARCH_BOOTMEM.

It was used on x86-32 numa to try all bootmem allocations from node 0
first (see only remaining definition of bootmem_arch_preferred_node),
which AFAICS nobootmem no longer respects.

Shouldn't this be fixed instead?

But yeah, we can remove the bootmem.c parts, I think.
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