[PATCH 00/10] percpu: Per cpu code simplification V4

From: travis
Date: Tue Jan 08 2008 - 16:10:41 EST



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-rc6-mm1
---

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

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

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.

Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Mike Travis <travis@xxxxxxx>

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