From: Kumar Gala <galak@kernel.crashing.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
Paul Mackerras <paulus@samba.org>
Subject: Re: [patch 11/14] Powerpc: Use generic per cpu
Date: Tue, 27 Nov 2007 01:41:55 -0600 [thread overview]
Message-ID: <F81BD9A7-9D76-4C2C-AF80-AAA3F70F061E@kernel.crashing.org> (raw)
In-Reply-To: <20071127001431.688565525@sgi.com>
On Nov 26, 2007, at 6:14 PM, Christoph Lameter wrote:
> Powerpc has a way to determine the address of the per cpu area of the
> currently executing processor via the paca and the array of per cpu
> offsets is avoided by looking up the per cpu area from the remote
> paca's (copying x86_64).
>
> Cc: Paul Mackerras <paulus@samba.org>
> Signed-off-by: Christoph Lameter <clameter@sgi.com>
>
> ---
> include/asm-powerpc/percpu.h | 19 -------------------
> 1 file changed, 19 deletions(-)
>
> Index: linux-2.6/include/asm-powerpc/percpu.h
> ===================================================================
> --- linux-2.6.orig/include/asm-powerpc/percpu.h 2007-11-24
> 10:27:31.088350556 -0800
> +++ linux-2.6/include/asm-powerpc/percpu.h 2007-11-24
> 10:29:20.752350757 -0800
> @@ -16,25 +16,6 @@
> #define __my_cpu_offset() get_paca()->data_offset
> #define per_cpu_offset(x) (__per_cpu_offset(x))
This concerns me. paca doesn't exist on all PPC platforms.
- k
next prev parent reply other threads:[~2007-11-27 7:42 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-27 0:14 [patch 00/14] Per cpu code simplification Christoph Lameter
2007-11-27 0:14 ` [patch 01/14] Modules: Handle symbols that have a zero value Christoph Lameter
2007-11-27 0:14 ` [patch 02/14] Modules: Include sections.h to avoid defining linker variables explicitly Christoph Lameter
2007-11-27 0:14 ` [patch 03/14] Modules: Fold percpu_modcopy into module.c and get rid of the macro from hell Christoph Lameter
2007-11-27 0:14 ` [patch 04/14] ia64: Remove the __SMALL_ADDR_AREA attribute for per cpu access Christoph Lameter
2007-11-27 5:20 ` David Mosberger-Tang
2007-11-27 18:15 ` Christoph Lameter
2007-11-27 21:10 ` David Mosberger-Tang
2007-11-27 21:18 ` Christoph Lameter
2007-11-27 21:27 ` David Mosberger-Tang
2007-11-27 22:02 ` Christoph Lameter
2007-11-27 9:30 ` Andreas Schwab
2007-11-27 18:17 ` Christoph Lameter
2007-11-27 21:24 ` Andreas Schwab
2007-11-27 21:38 ` Christoph Lameter
2007-11-27 22:14 ` Adrian Bunk
2007-11-27 0:14 ` [patch 05/14] percpu: Use a Kconfig variable to configure arch specific percpu setup Christoph Lameter
2007-11-27 4:30 ` Rusty Russell
2007-11-27 18:14 ` Christoph Lameter
2007-11-28 1:36 ` Rusty Russell
2007-11-28 18:51 ` Christoph Lameter
2007-11-28 23:17 ` Rusty Russell
2007-11-28 23:36 ` Christoph Lameter
2007-11-30 2:23 ` Rusty Russell
2007-11-28 23:45 ` Jeremy Fitzhardinge
2007-11-29 0:11 ` Christoph Lameter
2007-11-29 1:18 ` Andi Kleen
2007-11-29 1:27 ` Christoph Lameter
2007-11-29 1:30 ` Jeremy Fitzhardinge
2007-11-29 1:32 ` Andi Kleen
2007-11-29 1:35 ` Christoph Lameter
2007-11-29 1:42 ` Jeremy Fitzhardinge
2007-11-29 1:48 ` Christoph Lameter
2007-11-29 1:54 ` Jeremy Fitzhardinge
2007-11-29 2:06 ` Christoph Lameter
2007-11-29 5:29 ` Jeremy Fitzhardinge
2007-11-29 6:08 ` Christoph Lameter
2007-11-29 6:10 ` Christoph Lameter
2007-11-27 23:40 ` Randy Dunlap
2007-11-28 0:03 ` Christoph Lameter
2007-11-28 0:05 ` Randy Dunlap
2007-11-27 0:14 ` [patch 06/14] percpu: Move arch XX_PER_CPU_XX definitions into linux/percpu.h Christoph Lameter
2007-11-27 0:14 ` [patch 07/14] percpu: Make the asm-generic/percpu.h more generic Christoph Lameter
2007-11-27 0:14 ` [patch 08/14] x86_32: Use generic percpu.h Christoph Lameter
2007-11-27 0:14 ` [patch 09/14] x86_64: Use generic percpu Christoph Lameter
2007-11-27 0:14 ` [patch 10/14] s390: " Christoph Lameter
2007-11-27 0:14 ` [patch 11/14] Powerpc: Use generic per cpu Christoph Lameter
2007-11-27 7:41 ` Kumar Gala [this message]
2007-11-27 18:16 ` Christoph Lameter
2007-11-27 20:58 ` Paul Mackerras
2007-11-27 21:13 ` Christoph Lameter
2007-11-28 2:35 ` Paul Mackerras
2007-11-28 18:54 ` Christoph Lameter
2007-12-02 20:55 ` Benjamin Herrenschmidt
2007-11-27 0:14 ` [patch 12/14] Sparc64: Use generic percpu Christoph Lameter
2007-11-27 0:14 ` [patch 13/14] ia64: " Christoph Lameter
2007-11-27 1:37 ` Christoph Lameter
2007-11-27 0:14 ` [patch 14/14] x86: Unify percpu.h Christoph Lameter
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