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-rw-r--r--arch/x86/kernel/head64.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 0ab59edd7067..4bcb61cd9fcd 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -29,17 +29,13 @@
static struct x8664_pda _boot_cpu_pda __read_mostly;
#ifdef CONFIG_SMP
-#ifdef CONFIG_DEBUG_PER_CPU_MAPS
/*
- * We install an empty cpu_pda pointer table to trap references before
- * the actual cpu_pda pointer table is created in setup_cpu_pda_map().
+ * We install an empty cpu_pda pointer table to indicate to early users
+ * (numa_set_node) that the cpu_pda pointer table for cpus other than
+ * the boot cpu is not yet setup.
*/
static struct x8664_pda *__cpu_pda[NR_CPUS] __initdata;
#else
-static struct x8664_pda *__cpu_pda[1] __read_mostly;
-#endif
-
-#else /* !CONFIG_SMP (NR_CPUS will be 1) */
static struct x8664_pda *__cpu_pda[NR_CPUS] __read_mostly;
#endif