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Subject[191/272] powerpc/numa: Fix bug in unmap_cpu_from_node
2.6.37-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Anton Blanchard <anton@samba.org>

commit 429f4d8d20b91e4a6c239f951c06a56a6ac22957 upstream.

When converting to the new cpumask code I screwed up:

- if (cpu_isset(cpu, numa_cpumask_lookup_table[node])) {
- cpu_clear(cpu, numa_cpumask_lookup_table[node]);
+ if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) {
+ cpumask_set_cpu(cpu, node_to_cpumask_map[node]);

This was introduced in commit 25863de07af9 (powerpc/cpumask: Convert NUMA code
to new cpumask API)

Fix it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
arch/powerpc/mm/numa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -181,7 +181,7 @@ static void unmap_cpu_from_node(unsigned
dbg("removing cpu %lu from node %d\n", cpu, node);

if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) {
- cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
+ cpumask_clear_cpu(cpu, node_to_cpumask_map[node]);
} else {
printk(KERN_ERR "WARNING: cpu %lu not found in node %d\n",
cpu, node);



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