Re: [PATCH] kmalloc_percpu

From: Andrew Morton (akpm@digeo.com)
Date: Tue May 06 2003 - 00:48:15 EST


"David S. Miller" <davem@redhat.com> wrote:
>
>
> Please address the ia64 concerns then :-) It probably means we
> have to stay with the dereferencing stuff... at which point you
> might as well use normal kmalloc() and smp_processor_id() indexing
> inside of modules.

I think so. So we'd end up with:

- DEFINE_PER_CPU and kmalloc_percpu() work in core kernel, and use the 32k
  pool.

- DEFINE_PER_CPU in modules uses the 32k pool as well (core kernel does the
  allocation).

- kmalloc_per_cpu() is unavailble to modules (it ain't exported).

AFAICT the only thing which will break is sctp, which needs a trivial
conversion to DEFINE_PER_CPU.

-
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