Messages in this thread Patch in this message | | | Date | Thu, 18 Sep 2003 16:46:01 -0700 | From | Chris Wright <> | Subject | [PATCH 13/13] use cpu_relax() in busy loop |
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Replace busy loop rep_nop() with cpu_relax().
This is bordering on a gratuitous change given the x86_64 def'n of cpu_relax(). But I was fixing up other busy loops, and my grep found this one.
===== arch/x86_64/kernel/smpboot.c 1.21 vs edited ===== --- 1.21/arch/x86_64/kernel/smpboot.c Sat Aug 23 05:13:33 2003 +++ edited/arch/x86_64/kernel/smpboot.c Thu Sep 18 10:26:41 2003 @@ -282,7 +282,7 @@ */ if (cpu_isset(cpuid, cpu_callout_map)) break; - rep_nop(); + cpu_relax(); } if (!time_before(jiffies, timeout)) { - 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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