[PATCH] x86-64: Only allocate per cpu data for possible CPUs, not compiled in CPUs.

Saves some memory except for hotplug situations.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c
index e8b54dccb3e..bd33be24a38 100644
--- a/arch/x86_64/kernel/setup64.c
+++ b/arch/x86_64/kernel/setup64.c
@@ -94,7 +94,7 @@ void __init setup_per_cpu_areas(void)
                 size = PERCPU_ENOUGH_ROOM;
 #endif
 
-        for (i = 0; i < NR_CPUS; i++) { 
+        for_each_cpu_mask (i, cpu_possible_map) {
                 char *ptr;
 
                 if (!NODE_DATA(cpu_to_node(i))) {