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-rw-r--r--kernel/sched.c250
1 files changed, 125 insertions, 125 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 021b312..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) {
generated by cgit v1.1 at 2024-10-31 17:55:07 +0000