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[PATCH] x86-64: Only allocate per cpu data for possible CPUs, not compiled in CPUs.
author
Andi Kleen
<ak@suse.de>
Mon, 12 Sep 2005 16:49:24 +0000
(18:49 +0200)
committer
Linus Torvalds
<torvalds@g5.osdl.org>
Mon, 12 Sep 2005 17:49:58 +0000
(10:49 -0700)
Saves some memory except for hotplug situations.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/x86_64/kernel/setup64.c
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diff --git
a/arch/x86_64/kernel/setup64.c
b/arch/x86_64/kernel/setup64.c
index
e8b54dc
..
bd33be2
100644
(file)
--- 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))) {