diff options
| -rw-r--r-- | include/linux/sched.h | 2 | ||||
| -rw-r--r-- | kernel/sched.c | 17 | ||||
| -rw-r--r-- | kernel/sched_fair.c | 4 | ||||
| -rw-r--r-- | kernel/sched_idletask.c | 4 | ||||
| -rw-r--r-- | kernel/sched_rt.c | 4 |
5 files changed, 14 insertions, 17 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 639241f4f3d1..24e08d1d900d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -828,6 +828,7 @@ struct sched_class { struct task_struct * (*pick_next_task) (struct rq *rq); void (*put_prev_task) (struct rq *rq, struct task_struct *p); +#ifdef CONFIG_SMP unsigned long (*load_balance) (struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, struct sched_domain *sd, enum cpu_idle_type idle, @@ -836,6 +837,7 @@ struct sched_class { int (*move_one_task) (struct rq *this_rq, int this_cpu, struct rq *busiest, struct sched_domain *sd, enum cpu_idle_type idle); +#endif void (*set_curr_task) (struct rq *rq); void (*task_tick) (struct rq *rq, struct task_struct *p); diff --git a/kernel/sched.c b/kernel/sched.c index 8607795fad69..b4fbbc440453 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -849,23 +849,6 @@ static int iter_move_one_task(struct rq *this_rq, int this_cpu, struct rq *busiest, struct sched_domain *sd, enum cpu_idle_type idle, struct rq_iterator *iterator); -#else -static inline unsigned long -balance_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest, - unsigned long max_load_move, struct sched_domain *sd, - enum cpu_idle_type idle, int *all_pinned, - int *this_best_prio, struct rq_iterator *iterator) -{ - return 0; -} - -static inline int -iter_move_one_task(struct rq *this_rq, int this_cpu, struct rq *busiest, - struct sched_domain *sd, enum cpu_idle_type idle, - struct rq_iterator *iterator) -{ - return 0; -} #endif #include "sched_stats.h" diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index a90d0457d603..9971831b560e 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -876,6 +876,7 @@ static void put_prev_task_fair(struct rq *rq, struct task_struct *prev) } } +#ifdef CONFIG_SMP /************************************************** * Fair scheduling class load-balancing methods: */ @@ -1008,6 +1009,7 @@ move_one_task_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, return 0; } +#endif /* * scheduler tick hitting a task of our scheduling class: @@ -1084,8 +1086,10 @@ static const struct sched_class fair_sched_class = { .pick_next_task = pick_next_task_fair, .put_prev_task = put_prev_task_fair, +#ifdef CONFIG_SMP .load_balance = load_balance_fair, .move_one_task = move_one_task_fair, +#endif .set_curr_task = set_curr_task_fair, .task_tick = task_tick_fair, diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c index 586b06ca30aa..bf9c25c15b8b 100644 --- a/kernel/sched_idletask.c +++ b/kernel/sched_idletask.c @@ -37,6 +37,7 @@ static void put_prev_task_idle(struct rq *rq, struct task_struct *prev) { } +#ifdef CONFIG_SMP static unsigned long load_balance_idle(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, @@ -52,6 +53,7 @@ move_one_task_idle(struct rq *this_rq, int this_cpu, struct rq *busiest, { return 0; } +#endif static void task_tick_idle(struct rq *rq, struct task_struct *curr) { @@ -76,8 +78,10 @@ const struct sched_class idle_sched_class = { .pick_next_task = pick_next_task_idle, .put_prev_task = put_prev_task_idle, +#ifdef CONFIG_SMP .load_balance = load_balance_idle, .move_one_task = move_one_task_idle, +#endif .set_curr_task = set_curr_task_idle, .task_tick = task_tick_idle, diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index e9395b7119e6..8abd752a0ebd 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -98,6 +98,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p) p->se.exec_start = 0; } +#ifdef CONFIG_SMP /* * Load-balancing iterator. Note: while the runqueue stays locked * during the whole iteration, the current task might be @@ -202,6 +203,7 @@ move_one_task_rt(struct rq *this_rq, int this_cpu, struct rq *busiest, return iter_move_one_task(this_rq, this_cpu, busiest, sd, idle, &rt_rq_iterator); } +#endif static void task_tick_rt(struct rq *rq, struct task_struct *p) { @@ -245,8 +247,10 @@ const struct sched_class rt_sched_class = { .pick_next_task = pick_next_task_rt, .put_prev_task = put_prev_task_rt, +#ifdef CONFIG_SMP .load_balance = load_balance_rt, .move_one_task = move_one_task_rt, +#endif .set_curr_task = set_curr_task_rt, .task_tick = task_tick_rt, |