generic: use new set_cpus_allowed_ptr function

  * Use new set_cpus_allowed_ptr() function added by previous patch,
    which instead of passing the "newly allowed cpus" cpumask_t arg
    by value,  pass it by pointer:

    -int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
    +int set_cpus_allowed_ptr(struct task_struct *p, const cpumask_t *new_mask)

  * Modify CPU_MASK_ALL

Depends on:
	[sched-devel]: sched: add new set_cpus_allowed_ptr function

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 2eff3f63abed..2011ad8d2697 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -232,9 +232,9 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen)
 
         /* Ensure that we are not runnable on dying cpu */
         old_allowed = current->cpus_allowed;
-        tmp = CPU_MASK_ALL;
+        cpus_setall(tmp);
         cpu_clear(cpu, tmp);
-        set_cpus_allowed(current, tmp);
+        set_cpus_allowed_ptr(current, &tmp);
 
         p = __stop_machine_run(take_cpu_down, &tcd_param, cpu);
 
@@ -268,7 +268,7 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen)
 out_thread:
         err = kthread_stop(p);
 out_allowed:
-        set_cpus_allowed(current, old_allowed);
+        set_cpus_allowed_ptr(current, &old_allowed);
 out_release:
         cpu_hotplug_done();
         return err;