sched: Cure nr_iowait_cpu() users

[net-next-2.6.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index a95a2455cebe8f9041347dc090595bba64e69b09..747fcaedddb70d6cb0a49b43c0d2f2a6f23a693f 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -139,7 +139,7 @@ extern int nr_processes(void);
 extern unsigned long nr_running(void);
 extern unsigned long nr_uninterruptible(void);
 extern unsigned long nr_iowait(void);
-extern unsigned long nr_iowait_cpu(void);
+extern unsigned long nr_iowait_cpu(int cpu);
 extern unsigned long this_cpu_load(void);
 
 
@@ -268,7 +268,6 @@ extern void init_idle(struct task_struct *idle, int cpu);
 extern void init_idle_bootup_task(struct task_struct *idle);
 
 extern int runqueue_is_locked(int cpu);
-extern void task_rq_unlock_wait(struct task_struct *p);
 
 extern cpumask_var_t nohz_cpu_mask;
 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
@@ -527,8 +526,9 @@ struct thread_group_cputimer {
  * the locking of signal_struct.
  */
 struct signal_struct {
-       atomic_t                count;
+       atomic_t                sigcnt;
        atomic_t                live;
+       int                     nr_threads;
 
        wait_queue_head_t       wait_chldexit;  /* for wait4() */
 
@@ -2101,7 +2101,6 @@ extern void flush_thread(void);
 extern void exit_thread(void);
 
 extern void exit_files(struct task_struct *);
-extern void __cleanup_signal(struct signal_struct *);
 extern void __cleanup_sighand(struct sighand_struct *);
 
 extern void exit_itimers(struct signal_struct *);
@@ -2148,6 +2147,11 @@ extern bool current_is_single_threaded(void);
 #define while_each_thread(g, t) \
        while ((t = next_thread(t)) != g)
 
+static inline int get_nr_threads(struct task_struct *tsk)
+{
+       return tsk->signal->nr_threads;
+}
+
 /* de_thread depends on thread_group_leader not being a pid based check */
 #define thread_group_leader(p) (p == p->group_leader)
 
@@ -2394,10 +2398,6 @@ static inline void thread_group_cputime_init(struct signal_struct *sig)
        spin_lock_init(&sig->cputimer.lock);
 }
 
-static inline void thread_group_cputime_free(struct signal_struct *sig)
-{
-}
-
 /*
  * Reevaluate whether the task has signals pending delivery.
  * Wake the task if so.