[PATCH] Don't attempt to power off if power off is not implemented

[powerpc.git] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index b650667..9273309 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -176,6 +176,13 @@ static unsigned int task_timeslice(task_t *p)
 #define task_hot(p, now, sd) ((long long) ((now) - (p)->last_ran)      \
                                < (long long) (sd)->cache_hot_time)
 
+void __put_task_struct_cb(struct rcu_head *rhp)
+{
+       __put_task_struct(container_of(rhp, struct task_struct, rcu));
+}
+
+EXPORT_SYMBOL_GPL(__put_task_struct_cb);
+
 /*
  * These are the runqueue data structures:
  */
@@ -1437,7 +1444,7 @@ void fastcall sched_fork(task_t *p, int clone_flags)
 #endif
 #ifdef CONFIG_PREEMPT
        /* Want to start with kernel preemption disabled. */
-       p->thread_info->preempt_count = 1;
+       task_thread_info(p)->preempt_count = 1;
 #endif
        /*
         * Share the timeslice between parent and child, thus the
@@ -4327,10 +4334,10 @@ static void show_task(task_t *p)
 #endif
 #ifdef CONFIG_DEBUG_STACK_USAGE
        {
-               unsigned long *n = (unsigned long *) (p->thread_info+1);
+               unsigned long *n = end_of_stack(p);
                while (!*n)
                        n++;
-               free = (unsigned long) n - (unsigned long)(p->thread_info+1);
+               free = (unsigned long)n - (unsigned long)end_of_stack(p);
        }
 #endif
        printk("%5lu %5d %6d ", free, p->pid, p->parent->pid);
@@ -4410,9 +4417,9 @@ void __devinit init_idle(task_t *idle, int cpu)
 
        /* Set the preempt count _outside_ the spinlocks! */
 #if defined(CONFIG_PREEMPT) && !defined(CONFIG_PREEMPT_BKL)
-       idle->thread_info->preempt_count = (idle->lock_depth >= 0);
+       task_thread_info(idle)->preempt_count = (idle->lock_depth >= 0);
 #else
-       idle->thread_info->preempt_count = 0;
+       task_thread_info(idle)->preempt_count = 0;
 #endif
 }