Messages in this thread Patch in this message | | | Date | Thu, 22 Apr 2004 00:07:51 -0700 | From | Paul Jackson <> | Subject | [Patch 14 of 17] cpumask v4 - Optimize i386 cpumask macro usage. |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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