Messages in this thread Patch in this message | | | Date | Mon, 24 Mar 2003 16:41:57 +0000 | From | davej@codemonk ... | Subject | mark context switch wrmsr path unlikely |
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diff -urpN --exclude-from=/home/davej/.exclude bk-linus/include/asm-i386/processor.h linux-2.5/include/asm-i386/processor.h --- bk-linus/include/asm-i386/processor.h 2003-03-21 12:53:30.000000000 +0000 +++ linux-2.5/include/asm-i386/processor.h 2003-03-21 13:45:20.000000000 +0000 @@ -419,7 +419,7 @@ static inline void load_esp0(struct tss_ { tss->esp0 = esp0; /* This can only happen when SEP is enabled, no need to test "SEP"arately */ - if (tss->ss1 != __KERNEL_CS) { + if ((unlikely(tss->ss1 != __KERNEL_CS))) { tss->ss1 = __KERNEL_CS; wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0); } - 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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