From f712c0c7e1796f92e45e4de144e247816d974b8f Mon Sep 17 00:00:00 2001
From: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Date: Sun, 30 Jul 2006 03:02:59 -0700
Subject: [PATCH] sched: build_sched_domains() fix
Use the correct groups while initializing sched groups power for
allnodes_domain. This fixes the crash observed while creating exclusive
cpusets.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Reported-and-tested-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
kernel/sched.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'kernel/sched.c')
diff --git a/kernel/sched.c b/kernel/sched.c
index b44b9a43b0fc..41a571806ce0 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6494,7 +6494,12 @@ static int build_sched_domains(const cpumask_t *cpu_map)
for (i = 0; i < MAX_NUMNODES; i++)
init_numa_sched_groups_power(sched_group_nodes[i]);
- init_numa_sched_groups_power(sched_group_allnodes);
+ if (sched_group_allnodes) {
+ int group = cpu_to_allnodes_group(first_cpu(*cpu_map));
+ struct sched_group *sg = &sched_group_allnodes[group];
+
+ init_numa_sched_groups_power(sg);
+ }
#endif
/* Attach the domains */
--
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