1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c
index bd33be24a386..79190891fbc5 100644
--- a/arch/x86_64/kernel/setup64.c
+++ b/arch/x86_64/kernel/setup64.c
@@ -87,6 +87,10 @@ void __init setup_per_cpu_areas(void)
         int i;
         unsigned long size;
 
+#ifdef CONFIG_HOTPLUG_CPU
+        prefill_possible_map();
+#endif
+
         /* Copy section for each CPU (we discard the original) */
         size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
 #ifdef CONFIG_MODULES