Not all x86 subarchitectures have support for hyperthreading, so every
piece you add for it has to be predicated on checks for CONFIG_X86_HT.
The patch corrects this hyperthreading leakage problem in
intel_cacheinfo.c
Signed-off-by: James Bottomley <[email protected]>
===== arch/i386/kernel/cpu/intel_cacheinfo.c 1.3 vs edited =====
--- 1.3/arch/i386/kernel/cpu/intel_cacheinfo.c 2005-03-31 05:06:44 -06:00
+++ edited/arch/i386/kernel/cpu/intel_cacheinfo.c 2005-04-02 12:03:39 -06:00
@@ -311,8 +311,10 @@
if (num_threads_sharing == 1)
cpu_set(cpu, this_leaf->shared_cpu_map);
+#ifdef CONFIG_X86_HT
else if (num_threads_sharing == smp_num_siblings)
this_leaf->shared_cpu_map = cpu_sibling_map[cpu];
+#endif
else
printk(KERN_INFO "Number of CPUs sharing cache didn't match "
"any known set of CPUs\n");
-
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