linux-kernel - [PATCH 0/7] percpu: Per cpu code simplification rc8-mm1-fixup with git-x86

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Message-Id: <20080121202821.815918000@sgi.com>
Date:	Mon, 21 Jan 2008 12:28:21 -0800
From:	travis@....com
To:	Andrew Morton <akpm@...ux-foundation.org>, Andi Kleen <ak@...e.de>,
	mingo@...e.hu
Cc:	Christoph Lameter <clameter@....com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/7] percpu: Per cpu code simplification rc8-mm1-fixup with git-x86


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 + latest (08/1/21) git-x86

Note there are two versions of this patchset:
	- 2.6.24-rc8-mm1
	- 2.6.24-rc8-mm1 + latest (08/1/21) git-x86

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

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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