diff options
| -rw-r--r-- | include/linux/sched.h | 5 | ||||
| -rw-r--r-- | kernel/sched.c | 250 |
2 files changed, 128 insertions, 127 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index c2797f0..1c876e2 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -534,7 +534,6 @@ extern struct user_struct *find_user(uid_t); extern struct user_struct root_user; #define INIT_USER (&root_user) -typedef struct prio_array prio_array_t; struct backing_dev_info; struct reclaim_state; @@ -715,6 +714,8 @@ enum sleep_type { SLEEP_INTERRUPTED, }; +struct prio_array; + struct task_struct { volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ struct thread_info *thread_info; @@ -732,7 +733,7 @@ struct task_struct { int load_weight; /* for niceness load balancing purposes */ int prio, static_prio, normal_prio; struct list_head run_list; - prio_array_t *array; + struct prio_array *array; unsigned short ioprio; unsigned int btrace_seq; diff --git a/kernel/sched.c b/kernel/sched.c index 021b3121..4ee400f 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -188,8 +188,6 @@ static inline unsigned int task_timeslice(struct task_struct *p) * These are the runqueue data structures: */ -typedef struct runqueue runqueue_t; - struct prio_array { unsigned int nr_active; DECLARE_BITMAP(bitmap, MAX_PRIO+1); /* include 1 bit for delimiter */ @@ -203,7 +201,7 @@ struct prio_array { * (such as the load balancing or the thread migration code), lock * acquire operations must be ordered by ascending &runqueue. */ -struct runqueue { +struct rq { spinlock_t lock; /* @@ -229,7 +227,7 @@ struct runqueue { unsigned long long timestamp_last_tick; struct task_struct *curr, *idle; struct mm_struct *prev_mm; - prio_array_t *active, *expired, arrays[2]; + struct prio_array *active, *expired, arrays[2]; int best_expired_prio; atomic_t nr_iowait; @@ -266,7 +264,7 @@ struct runqueue { struct lock_class_key rq_lock_key; }; -static DEFINE_PER_CPU(struct runqueue, runqueues); +static DEFINE_PER_CPU(struct rq, runqueues); /* * The domain tree (rq->sd) is protected by RCU's quiescent state transition. @@ -291,16 +289,16 @@ static DEFINE_PER_CPU(struct runqueue, runqueues); #endif #ifndef __ARCH_WANT_UNLOCKED_CTXSW -static inline int task_running(runqueue_t *rq, struct task_struct *p) +static inline int task_running(struct rq *rq, struct task_struct *p) { return rq->curr == p; } -static inline void prepare_lock_switch(runqueue_t *rq, struct task_struct *next) +static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) { } -static inline void finish_lock_switch(runqueue_t *rq, struct task_struct *prev) +static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) { #ifdef CONFIG_DEBUG_SPINLOCK /* this is a valid case when another task releases the spinlock */ @@ -317,7 +315,7 @@ static inline void finish_lock_switch(runqueue_t *rq, struct task_struct *prev) } #else /* __ARCH_WANT_UNLOCKED_CTXSW */ -static inline int task_running(runqueue_t *rq, struct task_struct *p) +static inline int task_running(struct rq *rq, struct task_struct *p) { #ifdef CONFIG_SMP return p->oncpu; @@ -326,7 +324,7 @@ static inline int task_running(runqueue_t *rq, struct task_struct *p) #endif } -static inline void prepare_lock_switch(runqueue_t *rq, struct task_struct *next) +static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) { #ifdef CONFIG_SMP /* @@ -343,7 +341,7 @@ static inline void prepare_lock_switch(runqueue_t *rq, struct task_struct *next) #endif } -static inline void finish_lock_switch(runqueue_t *rq, struct task_struct *prev) +static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) { #ifdef CONFIG_SMP /* @@ -364,10 +362,10 @@ static inline void finish_lock_switch(runqueue_t *rq, struct task_struct *prev) * __task_rq_lock - lock the runqueue a given task resides on. * Must be called interrupts disabled. */ -static inline runqueue_t *__task_rq_lock(struct task_struct *p) +static inline struct rq *__task_rq_lock(struct task_struct *p) __acquires(rq->lock) { - struct runqueue *rq; + struct rq *rq; repeat_lock_task: rq = task_rq(p); @@ -384,10 +382,10 @@ repeat_lock_task: * interrupts. Note the ordering: we can safely lookup the task_rq without * explicitly disabling preemption. */ -static runqueue_t *task_rq_lock(struct task_struct *p, unsigned long *flags) +static struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags) __acquires(rq->lock) { - struct runqueue *rq; + struct rq *rq; repeat_lock_task: local_irq_save(*flags); @@ -400,13 +398,13 @@ repeat_lock_task: return rq; } -static inline void __task_rq_unlock(runqueue_t *rq) +static inline void __task_rq_unlock(struct rq *rq) __releases(rq->lock) { spin_unlock(&rq->lock); } -static inline void task_rq_unlock(runqueue_t *rq, unsigned long *flags) +static inline void task_rq_unlock(struct rq *rq, unsigned long *flags) __releases(rq->lock) { spin_unlock_irqrestore(&rq->lock, *flags); @@ -426,7 +424,7 @@ static int show_schedstat(struct seq_file *seq, void *v) seq_printf(seq, "version %d\n", SCHEDSTAT_VERSION); seq_printf(seq, "timestamp %lu\n", jiffies); for_each_online_cpu(cpu) { - runqueue_t *rq = cpu_rq(cpu); + struct rq *rq = cpu_rq(cpu); #ifdef CONFIG_SMP struct sched_domain *sd; int dcnt = 0; @@ -513,10 +511,10 @@ struct file_operations proc_schedstat_operations = { /* * rq_lock - lock a given runqueue and disable interrupts. */ -static inline runqueue_t *this_rq_lock(void) +static inline struct rq *this_rq_lock(void) __acquires(rq->lock) { - runqueue_t *rq; + struct rq *rq; local_irq_disable(); rq = this_rq(); @@ -554,7 +552,7 @@ static inline void sched_info_dequeued(struct task_struct *t) static void sched_info_arrive(struct task_struct *t) { unsigned long now = jiffies, diff = 0; - struct runqueue *rq = task_rq(t); + struct rq *rq = task_rq(t); if (t->sched_info.last_queued) diff = now - t->sched_info.last_queued; @@ -597,7 +595,7 @@ static inline void sched_info_queued(struct task_struct *t) */ static inline void sched_info_depart(struct task_struct *t) { - struct runqueue *rq = task_rq(t); + struct rq *rq = task_rq(t); unsigned long diff = jiffies - t->sched_info.last_arrival; t->sched_info.cpu_time += diff; @@ -614,7 +612,7 @@ static inline void sched_info_depart(struct task_struct *t) static inline void sched_info_switch(struct task_struct *prev, struct task_struct *next) { - struct runqueue *rq = task_rq(prev); + struct rq *rq = task_rq(prev); /* * prev now departs the cpu. It's not interesting to record @@ -635,7 +633,7 @@ sched_info_switch(struct task_struct *prev, struct task_struct *next) /* * Adding/removing a task to/from a priority array: */ -static void dequeue_task(struct task_struct *p, prio_array_t *array) +static void dequeue_task(struct task_struct *p, struct prio_array *array) { array->nr_active--; list_del(&p->run_list); @@ -643,7 +641,7 @@ static void dequeue_task(struct task_struct *p, prio_array_t *array) __clear_bit(p->prio, array->bitmap); } -static void enqueue_task(struct task_struct *p, prio_array_t *array) +static void enqueue_task(struct task_struct *p, struct prio_array *array) { sched_info_queued(p); list_add_tail(&p->run_list, array->queue + p->prio); @@ -656,12 +654,13 @@ static void enqueue_task(struct task_struct *p, prio_array_t *array) * Put task to the end of the run list without the overhead of dequeue * followed by enqueue. */ -static void requeue_task(struct task_struct *p, prio_array_t *array) +static void requeue_task(struct task_struct *p, struct prio_array *array) { list_move_tail(&p->run_list, array->queue + p->prio); } -static inline void enqueue_task_head(struct task_struct *p, prio_array_t *array) +static inline void +enqueue_task_head(struct task_struct *p, struct prio_array *array) { list_add(&p->run_list, array->queue + p->prio); __set_bit(p->prio, array->bitmap); @@ -739,24 +738,24 @@ static void set_load_weight(struct task_struct *p) } static inline void -inc_raw_weighted_load(runqueue_t *rq, const struct task_struct *p) +inc_raw_weighted_load(struct rq *rq, const struct task_struct *p) { rq->raw_weighted_load += p->load_weight; } static inline void -dec_raw_weighted_load(runqueue_t *rq, const struct task_struct *p) +dec_raw_weighted_load(struct rq *rq, const struct task_struct *p) { rq->raw_weighted_load -= p->load_weight; } -static inline void inc_nr_running(struct task_struct *p, runqueue_t *rq) +static inline void inc_nr_running(struct task_struct *p, struct rq *rq) { rq->nr_running++; inc_raw_weighted_load(rq, p); } -static inline void dec_nr_running(struct task_struct *p, runqueue_t *rq) +static inline void dec_nr_running(struct task_struct *p, struct rq *rq) { rq->nr_running--; dec_raw_weighted_load(rq, p); @@ -803,9 +802,9 @@ static int effective_prio(struct task_struct *p) /* * __activate_task - move a task to the runqueue. */ -static void __activate_task(struct task_struct *p, runqueue_t *rq) +static void __activate_task(struct task_struct *p, struct rq *rq) { - prio_array_t *target = rq->active; + struct prio_array *target = rq->active; if (batch_task(p)) target = rq->expired; @@ -816,7 +815,7 @@ static void __activate_task(struct task_struct *p, runqueue_t *rq) /* * __activate_idle_task - move idle task to the _front_ of runqueue. */ -static inline void __activate_idle_task(struct task_struct *p, runqueue_t *rq) +static inline void __activate_idle_task(struct task_struct *p, struct rq *rq) { enqueue_task_head(p, rq->active); inc_nr_running(p, rq); @@ -898,7 +897,7 @@ static int recalc_task_prio(struct task_struct *p, unsigned long long now) * Update all the scheduling statistics stuff. (sleep average * calculation, priority modifiers, etc.) */ -static void activate_task(struct task_struct *p, runqueue_t *rq, int local) +static void activate_task(struct task_struct *p, struct rq *rq, int local) { unsigned long long now; @@ -906,7 +905,7 @@ static void activate_task(struct task_struct *p, runqueue_t *rq, int local) #ifdef CONFIG_SMP if (!local) { /* Compensate for drifting sched_clock */ - runqueue_t *this_rq = this_rq(); + struct rq *this_rq = this_rq(); now = (now - this_rq->timestamp_last_tick) + rq->timestamp_last_tick; } @@ -945,7 +944,7 @@ static void activate_task(struct task_struct *p, runqueue_t *rq, int local) /* * deactivate_task - remove a task from the runqueue. */ -static void deactivate_task(struct task_struct *p, runqueue_t *rq) +static void deactivate_task(struct task_struct *p, struct rq *rq) { dec_nr_running(p, rq); dequeue_task(p, p->array); @@ -1009,23 +1008,23 @@ unsigned long weighted_cpuload(const int cpu) } #ifdef CONFIG_SMP -typedef struct { +struct migration_req { struct list_head list; struct task_struct *task; int dest_cpu; struct completion done; -} migration_req_t; +}; /* * The task's runqueue lock must be held. * Returns true if you have to wait for migration thread. */ static int -migrate_task(struct task_struct *p, int dest_cpu, migration_req_t *req) +migrate_task(struct task_struct *p, int dest_cpu, struct migration_req *req) { - runqueue_t *rq = task_rq(p); + struct rq *rq = task_rq(p); /* * If the task is not on a runqueue (and not running), then @@ -1056,7 +1055,7 @@ migrate_task(struct task_struct *p, int dest_cpu, migration_req_t *req) void wait_task_inactive(struct task_struct *p) { unsigned long flags; - runqueue_t *rq; + struct rq *rq; int preempted; repeat: @@ -1107,7 +1106,7 @@ void kick_process(struct task_struct *p) */ static inline unsigned long source_load(int cpu, int type) { - runqueue_t *rq = cpu_rq(cpu); + struct rq *rq = cpu_rq(cpu); if (type == 0) return rq->raw_weighted_load; @@ -1121,7 +1120,7 @@ static inline unsigned long source_load(int cpu, int type) */ static inline unsigned long target_load(int cpu, int type) { - runqueue_t *rq = cpu_rq(cpu); + struct rq *rq = cpu_rq(cpu); if (type == 0) return rq->raw_weighted_load; @@ -1134,7 +1133,7 @@ static inline unsigned long target_load(int cpu, int type) */ static inline unsigned long cpu_avg_load_per_task(int cpu) { - runqueue_t *rq = cpu_rq(cpu); + struct rq *rq = cpu_rq(cpu); unsigned long n = rq->nr_running; return n ? rq->raw_weighted_load / n : SCHED_LOAD_SCALE; @@ -1338,10 +1337,10 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync) int cpu, this_cpu, success = 0; unsigned long flags; long old_state; - runqueue_t *rq; + struct rq *rq; #ifdef CONFIG_SMP - unsigned long load, this_load; struct sched_domain *sd, *this_sd = NULL; + unsigned long load, this_load; int new_cpu; #endif @@ -1577,9 +1576,9 @@ void fastcall sched_fork(struct task_struct *p, int clone_flags) */ void fastcall wake_up_new_task(struct task_struct *p, unsigned long clone_flags) { + struct rq *rq, *this_rq; unsigned long flags; int this_cpu, cpu; - runqueue_t *rq, *this_rq; rq = task_rq_lock(p, &flags); BUG_ON(p->state != TASK_RUNNING); @@ -1662,7 +1661,7 @@ void fastcall wake_up_new_task(struct task_struct *p, unsigned long clone_flags) void fastcall sched_exit(struct task_struct *p) { unsigned long flags; - runqueue_t *rq; + struct rq *rq; /* * If the child was a (relative-) CPU hog then decrease @@ -1693,7 +1692,7 @@ void fastcall sched_exit(struct task_struct *p) * prepare_task_switch sets up locking and calls architecture specific * hooks. */ -static inline void prepare_task_switch(runqueue_t *rq, struct task_struct *next) +static inline void prepare_task_switch(struct rq *rq, struct task_struct *next) { prepare_lock_switch(rq, next); prepare_arch_switch(next); @@ -1714,7 +1713,7 @@ static inline void prepare_task_switch(runqueue_t *rq, struct task_struct *next) * with the lock held can cause deadlocks; see schedule() for * details.) */ -static inline void finish_task_switch(runqueue_t *rq, struct task_struct *prev) +static inline void finish_task_switch(struct rq *rq, struct task_struct *prev) __releases(rq->lock) { struct mm_struct *mm = rq->prev_mm; @@ -1755,7 +1754,8 @@ static inline void finish_task_switch(runqueue_t *rq, struct task_struct *prev) asmlinkage void schedule_tail(struct task_struct *prev) __releases(rq->lock) { - runqueue_t *rq = this_rq(); + struct rq *rq = this_rq(); + finish_task_switch(rq, prev); #ifdef __ARCH_WANT_UNLOCKED_CTXSW /* In this case, finish_task_switch does not reenable preemption */ @@ -1770,7 +1770,7 @@ asmlinkage void schedule_tail(struct task_struct *prev) * thread's register state. */ static inline struct task_struct * -context_switch(runqueue_t *rq, struct task_struct *prev, +context_switch(struct rq *rq, struct task_struct *prev, struct task_struct *next) { struct mm_struct *mm = next->mm; @@ -1883,7 +1883,7 @@ task_hot(struct task_struct *p, unsigned long long now, struct sched_domain *sd) * Note this does not disable interrupts like task_rq_lock, * you need to do so manually before calling. */ -static void double_rq_lock(runqueue_t *rq1, runqueue_t *rq2) +static void double_rq_lock(struct rq *rq1, struct rq *rq2) __acquires(rq1->lock) __acquires(rq2->lock) { @@ -1907,7 +1907,7 @@ static void double_rq_lock(runqueue_t *rq1, runqueue_t *rq2) * Note this does not restore interrupts like task_rq_unlock, * you need to do so manually after calling. */ -static void double_rq_unlock(runqueue_t *rq1, runqueue_t *rq2) +static void double_rq_unlock(struct rq *rq1, struct rq *rq2) __releases(rq1->lock) __releases(rq2->lock) { @@ -1921,7 +1921,7 @@ static void double_rq_unlock(runqueue_t *rq1, runqueue_t *rq2) /* * double_lock_balance - lock the busiest runqueue, this_rq is locked already. */ -static void double_lock_balance(runqueue_t *this_rq, runqueue_t *busiest) +static void double_lock_balance(struct rq *this_rq, struct rq *busiest) __releases(this_rq->lock) __acquires(busiest->lock) __acquires(this_rq->lock) @@ -1944,9 +1944,9 @@ static void double_lock_balance(runqueue_t *this_rq, runqueue_t *busiest) */ static void sched_migrate_task(struct task_struct *p, int dest_cpu) { - migration_req_t req; - runqueue_t *rq; + struct migration_req req; unsigned long flags; + struct rq *rq; rq = task_rq_lock(p, &flags); if (!cpu_isset(dest_cpu, p->cpus_allowed) @@ -1987,9 +1987,9 @@ void sched_exec(void) * pull_task - move a task from a remote runqueue to the local runqueue. * Both runqueues must be locked. */ -static void pull_task(runqueue_t *src_rq, prio_array_t *src_array, - struct task_struct *p, runqueue_t *this_rq, - prio_array_t *this_array, int this_cpu) +static void pull_task(struct rq *src_rq, struct prio_array *src_array, + struct task_struct *p, struct rq *this_rq, + struct prio_array *this_array, int this_cpu) { dequeue_task(p, src_array); dec_nr_running(p, src_rq); @@ -2010,7 +2010,7 @@ static void pull_task(runqueue_t *src_rq, prio_array_t *src_array, * can_migrate_task - may task p from runqueue rq be migrated to this_cpu? */ static -int can_migrate_task(struct task_struct *p, runqueue_t *rq, int this_cpu, +int can_migrate_task(struct task_struct *p, struct rq *rq, int this_cpu, struct sched_domain *sd, enum idle_type idle, int *all_pinned) { @@ -2050,14 +2050,14 @@ int can_migrate_task(struct task_struct *p, runqueue_t *rq, int this_cpu, * * Called with both runqueues locked. */ -static int move_tasks(runqueue_t *this_rq, int this_cpu, runqueue_t *busiest, +static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_nr_move, unsigned long max_load_move, struct sched_domain *sd, enum idle_type idle, int *all_pinned) { int idx, pulled = 0, pinned = 0, this_best_prio, best_prio, best_prio_seen, skip_for_load; - prio_array_t *array, *dst_array; + struct prio_array *array, *dst_array; struct list_head *head, *curr; struct task_struct *tmp; long rem_load_move; @@ -2212,7 +2212,7 @@ find_busiest_group(struct sched_domain *sd, int this_cpu, sum_weighted_load = sum_nr_running = avg_load = 0; for_each_cpu_mask(i, group->cpumask) { - runqueue_t *rq = cpu_rq(i); + struct rq *rq = cpu_rq(i); if (*sd_idle && !idle_cpu(i)) *sd_idle = 0; @@ -2428,11 +2428,11 @@ ret: /* * find_busiest_queue - find the busiest runqueue among the cpus in group. */ -static runqueue_t * +static struct rq * find_busiest_queue(struct sched_group *group, enum idle_type idle, unsigned long imbalance) { - runqueue_t *busiest = NULL, *rq; + struct rq *busiest = NULL, *rq; unsigned long max_load = 0; int i; @@ -2468,13 +2468,13 @@ static inline unsigned long minus_1_or_zero(unsigned long n) * * Called with this_rq unlocked. */ -static int load_balance(int this_cpu, runqueue_t *this_rq, +static int load_balance(int this_cpu, struct rq *this_rq, struct sched_domain *sd, enum idle_type idle) { int nr_moved, all_pinned = 0, active_balance = 0, sd_idle = 0; struct sched_group *group; unsigned long imbalance; - runqueue_t *busiest; + struct rq *busiest; if (idle != NOT_IDLE && sd->flags & SD_SHARE_CPUPOWER && !sched_smt_power_savings) @@ -2596,10 +2596,10 @@ out_one_pinned: * this_rq is locked. */ static int -load_balance_newidle(int this_cpu, runqueue_t *this_rq, struct sched_domain *sd) +load_balance_newidle(int this_cpu, struct rq *this_rq, struct sched_domain *sd) { struct sched_group *group; - runqueue_t *busiest = NULL; + struct rq *busiest = NULL; unsigned long imbalance; int nr_moved = 0; int sd_idle = 0; @@ -2657,7 +2657,7 @@ out_balanced: * idle_balance is called by schedule() if this_cpu is about to become * idle. Attempts to pull tasks from other CPUs. */ -static void idle_balance(int this_cpu, runqueue_t *this_rq) +static void idle_balance(int this_cpu, struct rq *this_rq) { struct sched_domain *sd; @@ -2678,11 +2678,11 @@ static void idle_balance(int this_cpu, runqueue_t *this_rq) * * Called with busiest_rq locked. */ -static void active_load_balance(runqueue_t *busiest_rq, int busiest_cpu) +static void active_load_balance(struct rq *busiest_rq, int busiest_cpu) { - struct sched_domain *sd; - runqueue_t *target_rq; int target_cpu = busiest_rq->push_cpu; + struct sched_domain *sd; + struct rq *target_rq; /* Is there any task to move? */ if (busiest_rq->nr_running <= 1) @@ -2736,7 +2736,7 @@ static inline unsigned long cpu_offset(int cpu) } static void -rebalance_tick(int this_cpu, runqueue_t *this_rq, enum idle_type idle) +rebalance_tick(int this_cpu, struct rq *this_rq, enum idle_type idle) { unsigned long this_load, interval, j = cpu_offset(this_cpu); struct sched_domain *sd; @@ -2790,15 +2790,15 @@ rebalance_tick(int this_cpu, runqueue_t *this_rq, enum idle_type idle) /* * on UP we do not need to balance between CPUs: */ -static inline void rebalance_tick(int cpu, runqueue_t *rq, enum idle_type idle) +static inline void rebalance_tick(int cpu, struct rq *rq, enum idle_type idle) { } -static inline void idle_balance(int cpu, runqueue_t *rq) +static inline void idle_balance(int cpu, struct rq *rq) { } #endif -static inline int wake_priority_sleeper(runqueue_t *rq) +static inline int wake_priority_sleeper(struct rq *rq) { int ret = 0; @@ -2826,7 +2826,7 @@ EXPORT_PER_CPU_SYMBOL(kstat); * Bank in p->sched_time the ns elapsed since the last tick or switch. */ static inline void -update_cpu_clock(struct task_struct *p, runqueue_t *rq, unsigned long long now) +update_cpu_clock(struct task_struct *p, struct rq *rq, unsigned long long now) { p->sched_time += now - max(p->timestamp, rq->timestamp_last_tick); } @@ -2858,7 +2858,7 @@ unsigned long long current_sched_time(const struct task_struct *p) * increasing number of running tasks. We also ignore the interactivity * if a better static_prio task has expired: */ -static inline int expired_starving(runqueue_t *rq) +static inline int expired_starving(struct rq *rq) { if (rq->curr->static_prio > rq->best_expired_prio) return 1; @@ -2900,7 +2900,7 @@ void account_system_time(struct task_struct *p, int hardirq_offset, cputime_t cputime) { struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat; - runqueue_t *rq = this_rq(); + struct rq *rq = this_rq(); cputime64_t tmp; p->stime = cputime_add(p->stime, cputime); @@ -2930,7 +2930,7 @@ void account_steal_time(struct task_struct *p, cputime_t steal) { struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat; cputime64_t tmp = cputime_to_cputime64(steal); - runqueue_t *rq = this_rq(); + struct rq *rq = this_rq(); if (p == rq->idle) { p->stime = cputime_add(p->stime, steal); @@ -2954,7 +2954,7 @@ void scheduler_tick(void) unsigned long long now = sched_clock(); struct task_struct *p = current; int cpu = smp_processor_id(); - runqueue_t *rq = this_rq(); + struct rq *rq = cpu_rq(cpu); update_cpu_clock(p, rq, now); @@ -3043,7 +3043,7 @@ out: } #ifdef CONFIG_SCHED_SMT -static inline void wakeup_busy_runqueue(runqueue_t *rq) +static inline void wakeup_busy_runqueue(struct rq *rq) { /* If an SMT runqueue is sleeping due to priority reasons wake it up */ if (rq->curr == rq->idle && rq->nr_running) @@ -3069,7 +3069,7 @@ static void wake_sleeping_dependent(int this_cpu) return; for_each_cpu_mask(i, sd->span) { - runqueue_t *smt_rq = cpu_rq(i); + struct rq *smt_rq = cpu_rq(i); if (i == this_cpu) continue; @@ -3099,7 +3099,7 @@ smt_slice(struct task_struct *p, struct sched_domain *sd) * need to be obeyed. */ static int -dependent_sleeper(int this_cpu, runqueue_t *this_rq, struct task_struct *p) +dependent_sleeper(int this_cpu, struct rq *this_rq, struct task_struct *p) { struct sched_domain *tmp, *sd = NULL; int ret = 0, i; @@ -3120,7 +3120,7 @@ dependent_sleeper(int this_cpu, runqueue_t *this_rq, struct task_struct *p) for_each_cpu_mask(i, sd->span) { struct task_struct *smt_curr; - runqueue_t *smt_rq; + struct rq *smt_rq; if (i == this_cpu) continue; @@ -3166,7 +3166,7 @@ static inline void wake_sleeping_dependent(int this_cpu) { } static inline int -dependent_sleeper(int this_cpu, runqueue_t *this_rq, struct task_struct *p) +dependent_sleeper(int this_cpu, struct rq *this_rq, struct task_struct *p) { return 0; } @@ -3221,13 +3221,13 @@ static inline int interactive_sleep(enum sleep_type sleep_type) asmlinkage void __sched schedule(void) { struct task_struct *prev, *next; + struct prio_array *array; struct list_head *queue; unsigned long long now; unsigned long run_time; int cpu, idx, new_prio; - prio_array_t *array; long *switch_count; - runqueue_t *rq; + struct rq *rq; /* * Test if we are atomic. Since do_exit() needs to call into @@ -3787,9 +3787,9 @@ EXPORT_SYMBOL(sleep_on_timeout); */ void rt_mutex_setprio(struct task_struct *p, int prio) { + struct prio_array *array; unsigned long flags; - prio_array_t *array; - runqueue_t *rq; + struct rq *rq; int oldprio; BUG_ON(prio < 0 || prio > MAX_PRIO); @@ -3828,10 +3828,10 @@ void rt_mutex_setprio(struct task_struct *p, int prio) void set_user_nice(struct task_struct *p, long nice) { + struct prio_array *array; int old_prio, delta; unsigned long flags; - prio_array_t *array; - runqueue_t *rq; + struct rq *rq; if (TASK_NICE(p) == nice || nice < -20 || nice > 19) return; @@ -4012,9 +4012,9 @@ int sched_setscheduler(struct task_struct *p, int policy, struct sched_param *param) { int retval, oldprio, oldpolicy = -1; - prio_array_t *array; + struct prio_array *array; unsigned long flags; - runqueue_t *rq; + struct rq *rq; /* may grab non-irq protected spin_locks */ BUG_ON(in_interrupt()); @@ -4376,9 +4376,8 @@ asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, */ asmlinkage long sys_sched_yield(void) { - runqueue_t *rq = this_rq_lock(); - prio_array_t *array = current->array; - prio_array_t *target = rq->expired; + struct rq *rq = this_rq_lock(); + struct prio_array *array = current->array, *target = rq->expired; schedstat_inc(rq, yld_cnt); /* @@ -4525,7 +4524,7 @@ EXPORT_SYMBOL(yield); */ void __sched io_schedule(void) { - struct runqueue *rq = &__raw_get_cpu_var(runqueues); + struct rq *rq = &__raw_get_cpu_var(runqueues); atomic_inc(&rq->nr_iowait); schedule(); @@ -4535,7 +4534,7 @@ EXPORT_SYMBOL(io_schedule); long __sched io_schedule_timeout(long timeout) { - struct runqueue *rq = &__raw_get_cpu_var(runqueues); + struct rq *rq = &__raw_get_cpu_var(runqueues); long ret; atomic_inc(&rq->nr_iowait); @@ -4743,7 +4742,7 @@ void show_state(void) */ void __devinit init_idle(struct task_struct *idle, int cpu) { - runqueue_t *rq = cpu_rq(cpu); + struct rq *rq = cpu_rq(cpu); unsigned long flags; idle->timestamp = sched_clock(); @@ -4782,7 +4781,7 @@ cpumask_t nohz_cpu_mask = CPU_MASK_NONE; /* * This is how migration works: * - * 1) we queue a migration_req_t structure in the source CPU's + * 1) we queue a struct migration_req structure in the source CPU's * runqueue and wake up that CPU's migration thread. * 2) we down() the locked semaphore => thread blocks. * 3) migration thread wakes up (implicitly it forces the migrated @@ -4806,9 +4805,9 @@ cpumask_t nohz_cpu_mask = CPU_MASK_NONE; */ int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask) { + struct migration_req req; unsigned long flags; - migration_req_t req; - runqueue_t *rq; + struct rq *rq; int ret = 0; rq = task_rq_lock(p, &flags); @@ -4850,7 +4849,7 @@ EXPORT_SYMBOL_GPL(set_cpus_allowed); */ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu) { - runqueue_t *rq_dest, *rq_src; + struct rq *rq_dest, *rq_src; int ret = 0; if (unlikely(cpu_is_offline(dest_cpu))) @@ -4896,15 +4895,15 @@ out: static int migration_thread(void *data) { int cpu = (long)data; - runqueue_t *rq; + struct rq *rq; rq = cpu_rq(cpu); BUG_ON(rq->migration_thread != current); set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { + struct migration_req *req; struct list_head *head; - migration_req_t *req; try_to_freeze(); @@ -4928,7 +4927,7 @@ static int migration_thread(void *data) set_current_state(TASK_INTERRUPTIBLE); continue; } - req = list_entry(head->next, migration_req_t, list); + req = list_entry(head->next, struct migration_req, list); list_del_init(head->next); spin_unlock(&rq->lock); @@ -4955,10 +4954,10 @@ wait_to_die: /* Figure out where task on dead CPU should go, use force if neccessary. */ static void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p) { - runqueue_t *rq; unsigned long flags; - int dest_cpu; cpumask_t mask; + struct rq *rq; + int dest_cpu; restart: /* On same node? */ @@ -4998,9 +4997,9 @@ restart: * their home CPUs. So we just add the counter to another CPU's counter, * to keep the global sum constant after CPU-down: */ -static void migrate_nr_uninterruptible(runqueue_t *rq_src) +static void migrate_nr_uninterruptible(struct rq *rq_src) { - runqueue_t *rq_dest = cpu_rq(any_online_cpu(CPU_MASK_ALL)); + struct rq *rq_dest = cpu_rq(any_online_cpu(CPU_MASK_ALL)); unsigned long flags; local_irq_save(flags); @@ -5036,7 +5035,7 @@ static void migrate_live_tasks(int src_cpu) void sched_idle_next(void) { int this_cpu = smp_processor_id(); - runqueue_t *rq = cpu_rq(this_cpu); + struct rq *rq = cpu_rq(this_cpu); struct task_struct *p = rq->idle; unsigned long flags; @@ -5074,7 +5073,7 @@ void idle_task_exit(void) static void migrate_dead(unsigned int dead_cpu, struct task_struct *p) { - struct runqueue *rq = cpu_rq(dead_cpu); + struct rq *rq = cpu_rq(dead_cpu); /* Must be exiting, otherwise would be on tasklist. */ BUG_ON(p->exit_state != EXIT_ZOMBIE && p->exit_state != EXIT_DEAD); @@ -5099,7 +5098,7 @@ static void migrate_dead(unsigned int dead_cpu, struct task_struct *p) /* release_task() removes task from tasklist, so we won't find dead tasks. */ static void migrate_dead_tasks(unsigned int dead_cpu) { - struct runqueue *rq = cpu_rq(dead_cpu); + struct rq *rq = cpu_rq(dead_cpu); unsigned int arr, i; for (arr = 0; arr < 2; arr++) { @@ -5123,8 +5122,8 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) { struct task_struct *p; int cpu = (long)hcpu; - struct runqueue *rq; unsigned long flags; + struct rq *rq; switch (action) { case CPU_UP_PREPARE: @@ -5176,9 +5175,10 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) * the requestors. */ spin_lock_irq(&rq->lock); while (!list_empty(&rq->migration_queue)) { - migration_req_t *req; + struct migration_req *req; + req = list_entry(rq->migration_queue.next, - migration_req_t, list); + struct migration_req, list); list_del_init(&req->list); complete(&req->done); } @@ -5361,7 +5361,7 @@ sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent) */ static void cpu_attach_domain(struct sched_domain *sd, int cpu) { - runqueue_t *rq = cpu_rq(cpu); + struct rq *rq = cpu_rq(cpu); struct sched_domain *tmp; /* Remove the sched domains which do not contribute to scheduling. */ @@ -6690,8 +6690,8 @@ void __init sched_init(void) int i, j, k; for_each_possible_cpu(i) { - prio_array_t *array; - runqueue_t *rq; + struct prio_array *array; + struct rq *rq; rq = cpu_rq(i); spin_lock_init(&rq->lock); @@ -6764,10 +6764,10 @@ EXPORT_SYMBOL(__might_sleep); #ifdef CONFIG_MAGIC_SYSRQ void normalize_rt_tasks(void) { + struct prio_array *array; struct task_struct *p; - prio_array_t *array; unsigned long flags; - runqueue_t *rq; + struct rq *rq; read_lock_irq(&tasklist_lock); for_each_process(p) { |
