Re: [PATCH 01/10] percpu: use dynamic percpu allocator as thedefault percpu allocator

[James Bottomley]

On Wed, 2009-06-24 at 15:45 +0900, Tejun Heo wrote:
> This patch makes most !CONFIG_HAVE_SETUP_PER_CPU_AREA archs use
> dynamic percpu allocator.  The first chunk is allocated using
> embedding helper and 8k is reserved for modules.  This ensures that
> the new allocator behaves almost identically to the original allocator
> as long as static percpu variables are concerned, so it shouldn't
> introduce much breakage.
> 
> s390 and alpha use custom SHIFT_PERCPU_PTR() to work around addressing
> range limit the addressing model imposes.  Unfortunately, this breaks
> if the address is specified using a variable, so for now, the two
> archs aren't converted.
> 
> The following architectures are affected by this change.
> 
> * sh
> * arm
> * cris
> * mips
> * sparc(32)
> * blackfin
> * avr32
> * parisc (broken, under investigation)

OK, I thought I'd investigate this.  Unfortunately, your git tree
doesn't build when pulled into head ... could you update?

mm/percpu.c: In function 'setup_per_cpu_areas':
mm/percpu.c:2007: error: too many arguments to function 'pcpu_embed_first_chunk'

James


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