Commit e99b861a authored Sep 12, 2005 by Andi Kleen Committed by Linus Torvalds Sep 12, 2005

[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>

parent 2b4a0815

arch/x86_64/kernel/setup64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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))) {