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authorYinghai Lu <yhlu.kernel@gmail.com>2008-07-02 18:54:40 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-08 13:16:24 +0200
commit329513a35d1a2b6b28d54f5c2c0dde4face8200b (patch)
treeef517f954c7dc6e86952e372608bde091b13f803
parent5f4765f96eebee6a0adc4009758b597ba48a0a3a (diff)
x86: move prefill_possible_map calling early
call it right after we are done with MADT/mptable handling, instead of doing that in setup_per_cpu_areas() later on... this way for_possible_cpu() can be used early. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/kernel/setup.c1
-rw-r--r--arch/x86/kernel/setup_percpu.c10
-rw-r--r--arch/x86/kernel/smpboot.c8
-rw-r--r--include/asm-x86/smp.h4
4 files changed, 13 insertions, 10 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index f52a6fb9023..cfcfbefee0b 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -818,6 +818,7 @@ void __init setup_arch(char **cmdline_p)
get_smp_config();
#endif
+ prefill_possible_map();
#ifdef CONFIG_X86_64
init_cpu_to_node();
#endif
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 43aca2de624..5fc310f746f 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -162,16 +162,6 @@ void __init setup_per_cpu_areas(void)
char *ptr;
int cpu;
- /* no processor from mptable or madt */
- if (!num_processors)
- num_processors = 1;
-
-#ifdef CONFIG_HOTPLUG_CPU
- prefill_possible_map();
-#else
- nr_cpu_ids = num_processors;
-#endif
-
/* Setup cpu_pda map */
setup_cpu_pda_map();
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 3b19441d78b..e1200b202ed 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1278,12 +1278,20 @@ __init void prefill_possible_map(void)
int i;
int possible;
+ /* no processor from mptable or madt */
+ if (!num_processors)
+ num_processors = 1;
+
+#ifdef CONFIG_HOTPLUG_CPU
if (additional_cpus == -1) {
if (disabled_cpus > 0)
additional_cpus = disabled_cpus;
else
additional_cpus = 0;
}
+#else
+ additional_cpus = 0;
+#endif
possible = num_processors + additional_cpus;
if (possible > NR_CPUS)
possible = NR_CPUS;
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index fad45f6a193..b324a0645a7 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -119,6 +119,10 @@ static inline int num_booting_cpus(void)
{
return cpus_weight(cpu_callout_map);
}
+#else
+static inline void prefill_possible_map(void)
+{
+}
#endif /* CONFIG_SMP */
extern unsigned disabled_cpus __cpuinitdata;