Merge branch 'sched/locking' into sched/core

Merge reason: the rq locking changes are stable,
              propagate them into the .40 queue.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 15 insertions, 9 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index e43e5b0ab0b5..d9ca3aa511ff 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -360,7 +360,7 @@ extern signed long schedule_timeout_interruptible(signed long timeout);
 extern signed long schedule_timeout_killable(signed long timeout);
 extern signed long schedule_timeout_uninterruptible(signed long timeout);
 asmlinkage void schedule(void);
-extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner);
+extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner);
 
 struct nsproxy;
 struct user_namespace;
@@ -1038,8 +1038,12 @@ struct sched_domain;
 #define WF_FORK         0x02            /* child wakeup after fork */
 
 #define ENQUEUE_WAKEUP          1
-#define ENQUEUE_WAKING          2
-#define ENQUEUE_HEAD            4
+#define ENQUEUE_HEAD            2
+#ifdef CONFIG_SMP
+#define ENQUEUE_WAKING          4       /* sched_class::task_waking was called */
+#else
+#define ENQUEUE_WAKING          0
+#endif
 
 #define DEQUEUE_SLEEP           1
 
@@ -1057,12 +1061,11 @@ struct sched_class {
         void (*put_prev_task) (struct rq *rq, struct task_struct *p);
 
 #ifdef CONFIG_SMP
-        int  (*select_task_rq)(struct rq *rq, struct task_struct *p,
-                               int sd_flag, int flags);
+        int  (*select_task_rq)(struct task_struct *p, int sd_flag, int flags);
 
         void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
         void (*post_schedule) (struct rq *this_rq);
-        void (*task_waking) (struct rq *this_rq, struct task_struct *task);
+        void (*task_waking) (struct task_struct *task);
         void (*task_woken) (struct rq *this_rq, struct task_struct *task);
 
         void (*set_cpus_allowed)(struct task_struct *p,
@@ -1190,10 +1193,10 @@ struct task_struct {
         int lock_depth;         /* BKL lock depth */
 
 #ifdef CONFIG_SMP
-#ifdef __ARCH_WANT_UNLOCKED_CTXSW
-        int oncpu;
-#endif
+        struct task_struct *wake_entry;
+        int on_cpu;
 #endif
+        int on_rq;
 
         int prio, static_prio, normal_prio;
         unsigned int rt_priority;
@@ -1261,6 +1264,7 @@ struct task_struct {
 
         /* Revert to default priority/policy when forking */
         unsigned sched_reset_on_fork:1;
+        unsigned sched_contributes_to_load:1;
 
         pid_t pid;
         pid_t tgid;
@@ -2179,8 +2183,10 @@ extern void set_task_comm(struct task_struct *tsk, char *from);
 extern char *get_task_comm(char *to, struct task_struct *tsk);
 
 #ifdef CONFIG_SMP
+void scheduler_ipi(void);
 extern unsigned long wait_task_inactive(struct task_struct *, long match_state);
 #else
+static inline void scheduler_ipi(void) { }
 static inline unsigned long wait_task_inactive(struct task_struct *p,
                                                long match_state)
 {