Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / arch / x86_64 / kernel / genapic_flat.c

diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c
index 1a2ab82..eb86d37 100644 (file)
--- a/arch/x86_64/kernel/genapic_flat.c
+++ b/arch/x86_64/kernel/genapic_flat.c
@@ -8,7 +8,6 @@
  * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
  * James Cleverdon.
  */
-#include <linux/config.h>
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/string.h>
@@ -78,22 +77,29 @@ static void flat_send_IPI_mask(cpumask_t cpumask, int vector)
 
 static void flat_send_IPI_allbutself(int vector)
 {
-#ifndef CONFIG_HOTPLUG_CPU
-       if (((num_online_cpus()) - 1) >= 1)
-               __send_IPI_shortcut(APIC_DEST_ALLBUT, vector,APIC_DEST_LOGICAL);
+#ifdef CONFIG_HOTPLUG_CPU
+       int hotplug = 1;
 #else
-       cpumask_t allbutme = cpu_online_map;
+       int hotplug = 0;
+#endif
+       if (hotplug || vector == NMI_VECTOR) {
+               cpumask_t allbutme = cpu_online_map;
 
-       cpu_clear(smp_processor_id(), allbutme);
+               cpu_clear(smp_processor_id(), allbutme);
 
-       if (!cpus_empty(allbutme))
-               flat_send_IPI_mask(allbutme, vector);
-#endif
+               if (!cpus_empty(allbutme))
+                       flat_send_IPI_mask(allbutme, vector);
+       } else if (num_online_cpus() > 1) {
+               __send_IPI_shortcut(APIC_DEST_ALLBUT, vector,APIC_DEST_LOGICAL);
+       }
 }
 
 static void flat_send_IPI_all(int vector)
 {
-       __send_IPI_shortcut(APIC_DEST_ALLINC, vector, APIC_DEST_LOGICAL);
+       if (vector == NMI_VECTOR)
+               flat_send_IPI_mask(cpu_online_map, vector);
+       else
+               __send_IPI_shortcut(APIC_DEST_ALLINC, vector, APIC_DEST_LOGICAL);
 }
 
 static int flat_apic_id_registered(void)
@@ -108,10 +114,7 @@ static unsigned int flat_cpu_mask_to_apicid(cpumask_t cpumask)
 
 static unsigned int phys_pkg_id(int index_msb)
 {
-       u32 ebx;
-
-       ebx = cpuid_ebx(1);
-       return ((ebx >> 24) & 0xFF) >> index_msb;
+       return hard_smp_processor_id() >> index_msb;
 }
 
 struct genapic apic_flat =  {