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sched: let arch_update_cpu_topology indicate if topology changed

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Change arch_update_cpu_topology so it returns 1 if the cpu topology changed
and 0 if it didn't change. This will be useful for the next patch which adds
a call to this function in partition_sched_domains.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Heiko Carstens 2008-12-09 18:49:50 +01:00 • committed by Ingo Molnar
parent c1dfdc7597
commit ee79d1bdb6
3 changed files with 11 additions and 4 deletions
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2
include/linux/topology.h
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@ -49,7 +49,7 @@
for_each_online_node(node) \
if (nr_cpus_node(node))
void arch_update_cpu_topology(void);
int arch_update_cpu_topology(void);
/* Conform to ACPI 2.0 SLIT distance definitions */
#define LOCAL_DISTANCE 10