x86, numa: fix boot without RAM on node0 again

[net-next-2.6.git] / arch / x86 / kernel / setup_percpu.c

diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index cf592767812ece9b934ca819141a1f9744c0cda6..690c2c09faf3258ab1a7d8b70a446b460c383fe7 100644 (file)
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -21,12 +21,6 @@
 #include <asm/cpu.h>
 #include <asm/stackprotector.h>
 
-#ifdef CONFIG_DEBUG_PER_CPU_MAPS
-# define DBG(fmt, ...) pr_dbg(fmt, ##__VA_ARGS__)
-#else
-# define DBG(fmt, ...) do { if (0) pr_dbg(fmt, ##__VA_ARGS__); } while (0)
-#endif
-
 DEFINE_PER_CPU(int, cpu_number);
 EXPORT_PER_CPU_SYMBOL(cpu_number);
 
@@ -244,6 +238,15 @@ void __init setup_per_cpu_areas(void)
 #ifdef CONFIG_NUMA
                per_cpu(x86_cpu_to_node_map, cpu) =
                        early_per_cpu_map(x86_cpu_to_node_map, cpu);
+               /*
+                * Ensure taht the boot cpu numa_node is correct when the boot
+                * cpu is on a node that doesn't have memory installed.
+                * Also cpu_up() will call cpu_to_node() for APs when
+                * MEMORY_HOTPLUG is defined, before per_cpu(numa_node) is set
+                * up later with c_init aka intel_init/amd_init.
+                * So set them all (boot cpu and all APs).
+                */
+               set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
 #endif
 #endif
                /*
@@ -263,14 +266,6 @@ void __init setup_per_cpu_areas(void)
        early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
 #endif
 
-#if defined(CONFIG_X86_64) && defined(CONFIG_NUMA)
-       /*
-        * make sure boot cpu numa_node is right, when boot cpu is on the
-        * node that doesn't have mem installed
-        */
-       set_cpu_numa_node(boot_cpu_id, early_cpu_to_node(boot_cpu_id));
-#endif
-
        /* Setup node to cpumask map */
        setup_node_to_cpumask_map();