Re: [PATCH 0/6] percpu: Per cpu code simplification fixup

From: Mike Travis
Date: Thu Jan 17 2008 - 17:52:55 EST


Hi Andrew,

My automatic scripts accidentally sent this mail prematurely. Please hold
off applying yet.

Thanks,
Mike

travis@xxxxxxx wrote:
> This patchset simplifies the code that arches need to maintain to support
> per cpu functionality. Most of the code is moved into arch independent
> code. Only a minimal set of definitions is kept for each arch.
>
> The patch also unifies the x86 arch so that there is only a single
> asm-x86/percpu.h
>
> Based on: 2.6.24-rc8-mm1
>
> Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
> Signed-off-by: Mike Travis <travis@xxxxxxx>
> ---
>
> fixup:
>
> - rebased from 2.6.24-rc6-mm1 to 2.6.24-rc8-mm1
> (removed changes that are in the git-x86.patch)
> - added back in missing fold-percpu_modcopy pieces
>
> V3->V4:
> - rebased patchset on 2.6.24-rc6-mm1
> (removes the percpu_modcopy changes that are already in.)
> - change config ARCH_SETS_UP_PER_CPU_AREA to a global var
> and use select HAVE_SETUP_PER_CPU_AREA to specify.
>
> V2->V3:
> - fix x86_64 non-SMP case
> - change SHIFT_PTR to SHIFT_PERCPU_PTR
> - fix various percpu_modcopy()'s to reference correct per_cpu_offset()
> - s390 has a special way to determine the pointer to a per cpu area
>
> V1->V2:
> - Add support for specifying attributes for per cpu declarations (preserves
> IA64 model(small) attribute).
> - Drop first patch that removes the model(small) attribute for IA64
> - Missing #endif in powerpc generic config / Wrong Kconfig
> - Follow Randy's suggestions on how to do the Kconfig settings
>

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