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Subject[Patch 14 of 17] cpumask v4 - Optimize i386 cpumask macro usage.
mask14-cpumask-i386-simplify - Optimize i386 cpumask macro usage.
Optimize a bit of cpumask code for asm-i386/mach-es7000
Code untested, unreviewed. Feedback welcome.

Index: 2.6.5.bitmap/include/asm-i386/mach-es7000/mach_ipi.h
===================================================================
--- 2.6.5.bitmap.orig/include/asm-i386/mach-es7000/mach_ipi.h 2004-04-08 04:19:28.000000000 -0700
+++ 2.6.5.bitmap/include/asm-i386/mach-es7000/mach_ipi.h 2004-04-08 04:19:34.000000000 -0700
@@ -10,9 +10,8 @@

static inline void send_IPI_allbutself(int vector)
{
- cpumask_t mask = cpumask_of_cpu(smp_processor_id());
- cpus_complement(mask);
- cpus_and(mask, mask, cpu_online_map);
+ cpumask_t mask = cpu_online_map;
+ cpu_clear(smp_processor_id(), mask);
if (!cpus_empty(mask))
send_IPI_mask(mask, vector);
}

--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.650.933.1373
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