If we are using hotplug enabled kernel, then make bigsmp the default mode.
Signed-off-by: Ashok Raj <[email protected]>
Signed-off-by: Venkatesh Pallipadi <[email protected]>
-------------------------------------------------------
arch/i386/kernel/mpparse.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
Index: linux-2.6.15-rc1-mm2/arch/i386/kernel/mpparse.c
===================================================================
--- linux-2.6.15-rc1-mm2.orig/arch/i386/kernel/mpparse.c
+++ linux-2.6.15-rc1-mm2/arch/i386/kernel/mpparse.c
@@ -38,6 +38,12 @@
int smp_found_config;
unsigned int __initdata maxcpus = NR_CPUS;
+#ifdef CONFIG_HOTPLUG_CPU
+#define CPU_HOTPLUG_ENABLED (1)
+#else
+#define CPU_HOTPLUG_ENABLED (0)
+#endif
+
/*
* Various Linux-internal data structures created from the
* MP-table.
@@ -219,9 +225,10 @@ static void __devinit MP_processor_info
cpu_set(num_processors, cpu_possible_map);
num_processors++;
- if ((num_processors > 8) &&
- APIC_XAPIC(ver) &&
- (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL))
+ if (APIC_XAPIC(ver) &&
+ (CPU_HOTPLUG_ENABLED ||
+ ((num_processors > 8) &&
+ (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL))))
def_to_bigsmp = 1;
else
def_to_bigsmp = 0;
--
-
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