RE: [PATCH] fix subarch breakage in intel_cacheinfo.c

From: Pallipadi, Venkatesh
Date: Sun Apr 03 2005 - 11:21:28 EST



Errr. That was my oversight. I will compile-test the patches
against all sub-archs in future. Thanks for catching this
and sending the patch.

Thanks,
Venki

>-----Original Message-----
>From: James Bottomley [mailto:James.Bottomley@xxxxxxxxxxxx]
>Sent: Saturday, April 02, 2005 10:10 AM
>To: Andrew Morton
>Cc: Pallipadi, Venkatesh; Linux Kernel
>Subject: [PATCH] fix subarch breakage in intel_cacheinfo.c
>
>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 <James.Bottomley@xxxxxxxxxxxx>
>
>===== 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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