add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/x86/lib/cache-smp.c
..
..
@@ -15,6 +15,7 @@
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 int wbinvd_on_all_cpus(void)
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 {
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-	return on_each_cpu(__wbinvd, NULL, 1);
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+	on_each_cpu(__wbinvd, NULL, 1);
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+	return 0;
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 }
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 EXPORT_SYMBOL(wbinvd_on_all_cpus);