sched: convert nohz_cpu_mask to cpumask_var_t.

[safe/jmp/linux-2.6] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index 6b9606a..2723d7a 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5870,9 +5870,9 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu)
  * indicates which cpus entered this state. This is used
  * in the rcu update to wait only for active cpus. For system
  * which do not switch off the HZ timer nohz_cpu_mask should
- * always be CPU_MASK_NONE.
+ * always be CPU_BITS_NONE.
  */
-cpumask_t nohz_cpu_mask = CPU_MASK_NONE;
+cpumask_var_t nohz_cpu_mask;
 
 /*
  * Increase the granularity value when there are more CPUs,
@@ -8274,6 +8274,9 @@ void __init sched_init(void)
         */
        current->sched_class = &fair_sched_class;
 
+       /* Allocate the nohz_cpu_mask if CONFIG_CPUMASK_OFFSTACK */
+       alloc_bootmem_cpumask_var(&nohz_cpu_mask);
+
        scheduler_running = 1;
 }