linux/arch/ppc
Ingo Molnar 39c715b717 [PATCH] smp_processor_id() cleanup
This patch implements a number of smp_processor_id() cleanup ideas that
Arjan van de Ven and I came up with.

The previous __smp_processor_id/_smp_processor_id/smp_processor_id API
spaghetti was hard to follow both on the implementational and on the
usage side.

Some of the complexity arose from picking wrong names, some of the
complexity comes from the fact that not all architectures defined
__smp_processor_id.

In the new code, there are two externally visible symbols:

 - smp_processor_id(): debug variant.

 - raw_smp_processor_id(): nondebug variant. Replaces all existing
   uses of _smp_processor_id() and __smp_processor_id(). Defined
   by every SMP architecture in include/asm-*/smp.h.

There is one new internal symbol, dependent on DEBUG_PREEMPT:

 - debug_smp_processor_id(): internal debug variant, mapped to
                             smp_processor_id().

Also, i moved debug_smp_processor_id() from lib/kernel_lock.c into a new
lib/smp_processor_id.c file.  All related comments got updated and/or
clarified.

I have build/boot tested the following 8 .config combinations on x86:

 {SMP,UP} x {PREEMPT,!PREEMPT} x {DEBUG_PREEMPT,!DEBUG_PREEMPT}

I have also build/boot tested x64 on UP/PREEMPT/DEBUG_PREEMPT.  (Other
architectures are untested, but should work just fine.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:13 -07:00
..
4xx_io Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
8xx_io Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
8260_io Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amiga Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
boot [PATCH] ppc32: Fix uImage make target to report success correctly 2005-05-28 16:46:14 -07:00
configs [PATCH] ppc32: Add VIA IDE support to MPC8555 CDS platform 2005-05-28 16:46:15 -07:00
kernel [PATCH] Driver Core: arch: update device attribute callbacks 2005-06-20 15:15:32 -07:00
lib [PATCH] smp_processor_id() cleanup 2005-06-21 18:46:13 -07:00
math-emu Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mm [PATCH] ppc32: don't call progress functions after boot 2005-05-20 07:54:10 -07:00
oprofile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
platforms [PATCH] ppc32: Fix nasty sleep/wakeup problem 2005-06-09 21:33:35 -07:00
syslib [PATCH] Driver Core: arch: update device attribute callbacks 2005-06-20 15:15:32 -07:00
xmon Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 2005-06-02 16:39:11 +01:00
Kconfig.debug Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] ppc32: refactor FPU exception handling 2005-05-01 08:58:40 -07:00