nodemask: use new node_to_cpumask_ptr function

  * Use new node_to_cpumask_ptr.  This creates a pointer to the
    cpumask for a given node.  This definition is in mm patch:

	asm-generic-add-node_to_cpumask_ptr-macro.patch

  * Use new set_cpus_allowed_ptr function.

Depends on:
	[mm-patch]: asm-generic-add-node_to_cpumask_ptr-macro.patch
	[sched-devel]: sched: add new set_cpus_allowed_ptr function
	[x86/latest]: x86: add cpus_scnprintf function

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Greg Banks <gnb@melbourne.sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 3 deletions

diff --git a/mm/slab.c b/mm/slab.c
index 04b308c3bc54..03927cb5ec9e 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1160,14 +1160,13 @@ static void __cpuinit cpuup_canceled(long cpu)
         struct kmem_cache *cachep;
         struct kmem_list3 *l3 = NULL;
         int node = cpu_to_node(cpu);
+        node_to_cpumask_ptr(mask, node);
 
         list_for_each_entry(cachep, &cache_chain, next) {
                 struct array_cache *nc;
                 struct array_cache *shared;
                 struct array_cache **alien;
-                cpumask_t mask;
 
-                mask = node_to_cpumask(node);
                 /* cpu is dead; no one can alloc from it. */
                 nc = cachep->array[cpu];
                 cachep->array[cpu] = NULL;
@@ -1183,7 +1182,7 @@ static void __cpuinit cpuup_canceled(long cpu)
                 if (nc)
                         free_block(cachep, nc->entry, nc->avail, node);
 
-                if (!cpus_empty(mask)) {
+                if (!cpus_empty(*mask)) {
                         spin_unlock_irq(&l3->list_lock);
                         goto free_array_cache;
                 }