Lines Matching refs:wq
206 struct workqueue_struct *wq; /* I: the owning workqueue */ member
380 static void workqueue_sysfs_unregister(struct workqueue_struct *wq);
395 #define assert_rcu_or_wq_mutex_or_pool_mutex(wq) \ argument
397 !lockdep_is_held(&wq->mutex) && \
450 #define for_each_pwq(pwq, wq) \ argument
451 list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node, \
452 lockdep_is_held(&(wq->mutex)))
585 static struct pool_workqueue *unbound_pwq_by_node(struct workqueue_struct *wq, in unbound_pwq_by_node() argument
588 assert_rcu_or_wq_mutex_or_pool_mutex(wq); in unbound_pwq_by_node()
597 return wq->dfl_pwq; in unbound_pwq_by_node()
599 return rcu_dereference_raw(wq->numa_pwq_tbl[node]); in unbound_pwq_by_node()
1144 if (WARN_ON_ONCE(!(pwq->wq->flags & WQ_UNBOUND))) in put_pwq()
1237 if (atomic_dec_and_test(&pwq->wq->nr_pwqs_to_flush)) in pwq_dec_nr_in_flight()
1238 complete(&pwq->wq->first_flusher->done); in pwq_dec_nr_in_flight()
1395 static bool is_chained_work(struct workqueue_struct *wq) in is_chained_work() argument
1404 return worker && worker->current_pwq->wq == wq; in is_chained_work()
1440 static void __queue_work(int cpu, struct workqueue_struct *wq, in __queue_work() argument
1459 if (unlikely(wq->flags & __WQ_DRAINING) && in __queue_work()
1460 WARN_ON_ONCE(!is_chained_work(wq))) in __queue_work()
1465 if (wq->flags & WQ_UNBOUND) { in __queue_work()
1468 pwq = unbound_pwq_by_node(wq, cpu_to_node(cpu)); in __queue_work()
1472 pwq = per_cpu_ptr(wq->cpu_pwqs, cpu); in __queue_work()
1488 if (worker && worker->current_pwq->wq == wq) { in __queue_work()
1508 if (wq->flags & WQ_UNBOUND) { in __queue_work()
1515 wq->name, cpu); in __queue_work()
1557 bool queue_work_on(int cpu, struct workqueue_struct *wq, in queue_work_on() argument
1566 __queue_work(cpu, wq, work); in queue_work_on()
1628 bool queue_work_node(int node, struct workqueue_struct *wq, in queue_work_node() argument
1643 WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND)); in queue_work_node()
1650 __queue_work(cpu, wq, work); in queue_work_node()
1664 __queue_work(dwork->cpu, dwork->wq, &dwork->work); in delayed_work_timer_fn()
1668 static void __queue_delayed_work(int cpu, struct workqueue_struct *wq, in __queue_delayed_work() argument
1674 WARN_ON_ONCE(!wq); in __queue_delayed_work()
1686 __queue_work(cpu, wq, &dwork->work); in __queue_delayed_work()
1690 dwork->wq = wq; in __queue_delayed_work()
1711 bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq, in queue_delayed_work_on() argument
1722 __queue_delayed_work(cpu, wq, dwork, delay); in queue_delayed_work_on()
1749 bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq, in mod_delayed_work_on() argument
1760 __queue_delayed_work(cpu, wq, dwork, delay); in mod_delayed_work_on()
1775 __queue_work(WORK_CPU_UNBOUND, rwork->wq, &rwork->work); in rcu_work_rcufn()
1789 bool queue_rcu_work(struct workqueue_struct *wq, struct rcu_work *rwork) in queue_rcu_work() argument
1794 rwork->wq = wq; in queue_rcu_work()
2061 struct workqueue_struct *wq = pwq->wq; in send_mayday() local
2065 if (!wq->rescuer) in send_mayday()
2076 list_add_tail(&pwq->mayday_node, &wq->maydays); in send_mayday()
2077 wake_up_process(wq->rescuer->task); in send_mayday()
2215 bool cpu_intensive = pwq->wq->flags & WQ_CPU_INTENSIVE; in process_one_work()
2259 strscpy(worker->desc, pwq->wq->name, WORKER_DESC_LEN); in process_one_work()
2292 lock_map_acquire(&pwq->wq->lockdep_map); in process_one_work()
2324 lock_map_release(&pwq->wq->lockdep_map); in process_one_work()
2513 struct workqueue_struct *wq = rescuer->rescue_wq; in rescuer_thread() local
2540 while (!list_empty(&wq->maydays)) { in rescuer_thread()
2541 struct pool_workqueue *pwq = list_first_entry(&wq->maydays, in rescuer_thread()
2588 if (wq->rescuer && list_empty(&pwq->mayday_node)) { in rescuer_thread()
2590 list_add_tail(&pwq->mayday_node, &wq->maydays); in rescuer_thread()
2656 WARN_ONCE(worker && ((worker->current_pwq->wq->flags & in check_flush_dependency()
2659 worker->current_pwq->wq->name, worker->current_func, in check_flush_dependency()
2778 static bool flush_workqueue_prep_pwqs(struct workqueue_struct *wq, in flush_workqueue_prep_pwqs() argument
2785 WARN_ON_ONCE(atomic_read(&wq->nr_pwqs_to_flush)); in flush_workqueue_prep_pwqs()
2786 atomic_set(&wq->nr_pwqs_to_flush, 1); in flush_workqueue_prep_pwqs()
2789 for_each_pwq(pwq, wq) { in flush_workqueue_prep_pwqs()
2799 atomic_inc(&wq->nr_pwqs_to_flush); in flush_workqueue_prep_pwqs()
2812 if (flush_color >= 0 && atomic_dec_and_test(&wq->nr_pwqs_to_flush)) in flush_workqueue_prep_pwqs()
2813 complete(&wq->first_flusher->done); in flush_workqueue_prep_pwqs()
2825 void flush_workqueue(struct workqueue_struct *wq) in flush_workqueue() argument
2830 .done = COMPLETION_INITIALIZER_ONSTACK_MAP(this_flusher.done, wq->lockdep_map), in flush_workqueue()
2837 lock_map_acquire(&wq->lockdep_map); in flush_workqueue()
2838 lock_map_release(&wq->lockdep_map); in flush_workqueue()
2840 mutex_lock(&wq->mutex); in flush_workqueue()
2845 next_color = work_next_color(wq->work_color); in flush_workqueue()
2847 if (next_color != wq->flush_color) { in flush_workqueue()
2853 WARN_ON_ONCE(!list_empty(&wq->flusher_overflow)); in flush_workqueue()
2854 this_flusher.flush_color = wq->work_color; in flush_workqueue()
2855 wq->work_color = next_color; in flush_workqueue()
2857 if (!wq->first_flusher) { in flush_workqueue()
2859 WARN_ON_ONCE(wq->flush_color != this_flusher.flush_color); in flush_workqueue()
2861 wq->first_flusher = &this_flusher; in flush_workqueue()
2863 if (!flush_workqueue_prep_pwqs(wq, wq->flush_color, in flush_workqueue()
2864 wq->work_color)) { in flush_workqueue()
2866 wq->flush_color = next_color; in flush_workqueue()
2867 wq->first_flusher = NULL; in flush_workqueue()
2872 WARN_ON_ONCE(wq->flush_color == this_flusher.flush_color); in flush_workqueue()
2873 list_add_tail(&this_flusher.list, &wq->flusher_queue); in flush_workqueue()
2874 flush_workqueue_prep_pwqs(wq, -1, wq->work_color); in flush_workqueue()
2882 list_add_tail(&this_flusher.list, &wq->flusher_overflow); in flush_workqueue()
2885 check_flush_dependency(wq, NULL); in flush_workqueue()
2887 mutex_unlock(&wq->mutex); in flush_workqueue()
2897 if (READ_ONCE(wq->first_flusher) != &this_flusher) in flush_workqueue()
2900 mutex_lock(&wq->mutex); in flush_workqueue()
2903 if (wq->first_flusher != &this_flusher) in flush_workqueue()
2906 WRITE_ONCE(wq->first_flusher, NULL); in flush_workqueue()
2909 WARN_ON_ONCE(wq->flush_color != this_flusher.flush_color); in flush_workqueue()
2915 list_for_each_entry_safe(next, tmp, &wq->flusher_queue, list) { in flush_workqueue()
2916 if (next->flush_color != wq->flush_color) in flush_workqueue()
2922 WARN_ON_ONCE(!list_empty(&wq->flusher_overflow) && in flush_workqueue()
2923 wq->flush_color != work_next_color(wq->work_color)); in flush_workqueue()
2926 wq->flush_color = work_next_color(wq->flush_color); in flush_workqueue()
2929 if (!list_empty(&wq->flusher_overflow)) { in flush_workqueue()
2936 list_for_each_entry(tmp, &wq->flusher_overflow, list) in flush_workqueue()
2937 tmp->flush_color = wq->work_color; in flush_workqueue()
2939 wq->work_color = work_next_color(wq->work_color); in flush_workqueue()
2941 list_splice_tail_init(&wq->flusher_overflow, in flush_workqueue()
2942 &wq->flusher_queue); in flush_workqueue()
2943 flush_workqueue_prep_pwqs(wq, -1, wq->work_color); in flush_workqueue()
2946 if (list_empty(&wq->flusher_queue)) { in flush_workqueue()
2947 WARN_ON_ONCE(wq->flush_color != wq->work_color); in flush_workqueue()
2955 WARN_ON_ONCE(wq->flush_color == wq->work_color); in flush_workqueue()
2956 WARN_ON_ONCE(wq->flush_color != next->flush_color); in flush_workqueue()
2959 wq->first_flusher = next; in flush_workqueue()
2961 if (flush_workqueue_prep_pwqs(wq, wq->flush_color, -1)) in flush_workqueue()
2968 wq->first_flusher = NULL; in flush_workqueue()
2972 mutex_unlock(&wq->mutex); in flush_workqueue()
2987 void drain_workqueue(struct workqueue_struct *wq) in drain_workqueue() argument
2997 mutex_lock(&wq->mutex); in drain_workqueue()
2998 if (!wq->nr_drainers++) in drain_workqueue()
2999 wq->flags |= __WQ_DRAINING; in drain_workqueue()
3000 mutex_unlock(&wq->mutex); in drain_workqueue()
3002 flush_workqueue(wq); in drain_workqueue()
3004 mutex_lock(&wq->mutex); in drain_workqueue()
3006 for_each_pwq(pwq, wq) { in drain_workqueue()
3019 wq->name, __func__, flush_cnt); in drain_workqueue()
3021 mutex_unlock(&wq->mutex); in drain_workqueue()
3025 if (!--wq->nr_drainers) in drain_workqueue()
3026 wq->flags &= ~__WQ_DRAINING; in drain_workqueue()
3027 mutex_unlock(&wq->mutex); in drain_workqueue()
3060 check_flush_dependency(pwq->wq, work); in start_flush_work()
3075 (pwq->wq->saved_max_active == 1 || pwq->wq->rescuer)) { in start_flush_work()
3076 lock_map_acquire(&pwq->wq->lockdep_map); in start_flush_work()
3077 lock_map_release(&pwq->wq->lockdep_map); in start_flush_work()
3244 __queue_work(dwork->cpu, dwork->wq, &dwork->work); in flush_delayed_work()
3510 static void wq_init_lockdep(struct workqueue_struct *wq) in wq_init_lockdep() argument
3514 lockdep_register_key(&wq->key); in wq_init_lockdep()
3515 lock_name = kasprintf(GFP_KERNEL, "%s%s", "(wq_completion)", wq->name); in wq_init_lockdep()
3517 lock_name = wq->name; in wq_init_lockdep()
3519 wq->lock_name = lock_name; in wq_init_lockdep()
3520 lockdep_init_map(&wq->lockdep_map, lock_name, &wq->key, 0); in wq_init_lockdep()
3523 static void wq_unregister_lockdep(struct workqueue_struct *wq) in wq_unregister_lockdep() argument
3525 lockdep_unregister_key(&wq->key); in wq_unregister_lockdep()
3528 static void wq_free_lockdep(struct workqueue_struct *wq) in wq_free_lockdep() argument
3530 if (wq->lock_name != wq->name) in wq_free_lockdep()
3531 kfree(wq->lock_name); in wq_free_lockdep()
3534 static void wq_init_lockdep(struct workqueue_struct *wq) in wq_init_lockdep() argument
3538 static void wq_unregister_lockdep(struct workqueue_struct *wq) in wq_unregister_lockdep() argument
3542 static void wq_free_lockdep(struct workqueue_struct *wq) in wq_free_lockdep() argument
3549 struct workqueue_struct *wq = in rcu_free_wq() local
3552 wq_free_lockdep(wq); in rcu_free_wq()
3554 if (!(wq->flags & WQ_UNBOUND)) in rcu_free_wq()
3555 free_percpu(wq->cpu_pwqs); in rcu_free_wq()
3557 free_workqueue_attrs(wq->unbound_attrs); in rcu_free_wq()
3559 kfree(wq); in rcu_free_wq()
3734 struct workqueue_struct *wq = pwq->wq; in pwq_unbound_release_workfn() local
3743 if (WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND))) in pwq_unbound_release_workfn()
3746 mutex_lock(&wq->mutex); in pwq_unbound_release_workfn()
3748 is_last = list_empty(&wq->pwqs); in pwq_unbound_release_workfn()
3749 mutex_unlock(&wq->mutex); in pwq_unbound_release_workfn()
3763 wq_unregister_lockdep(wq); in pwq_unbound_release_workfn()
3764 call_rcu(&wq->rcu, rcu_free_wq); in pwq_unbound_release_workfn()
3778 struct workqueue_struct *wq = pwq->wq; in pwq_adjust_max_active() local
3779 bool freezable = wq->flags & WQ_FREEZABLE; in pwq_adjust_max_active()
3783 lockdep_assert_held(&wq->mutex); in pwq_adjust_max_active()
3786 if (!freezable && pwq->max_active == wq->saved_max_active) in pwq_adjust_max_active()
3800 pwq->max_active = wq->saved_max_active; in pwq_adjust_max_active()
3824 static void init_pwq(struct pool_workqueue *pwq, struct workqueue_struct *wq, in init_pwq() argument
3832 pwq->wq = wq; in init_pwq()
3844 struct workqueue_struct *wq = pwq->wq; in link_pwq() local
3846 lockdep_assert_held(&wq->mutex); in link_pwq()
3853 pwq->work_color = wq->work_color; in link_pwq()
3859 list_add_rcu(&pwq->pwqs_node, &wq->pwqs); in link_pwq()
3863 static struct pool_workqueue *alloc_unbound_pwq(struct workqueue_struct *wq, in alloc_unbound_pwq() argument
3881 init_pwq(pwq, wq, pool); in alloc_unbound_pwq()
3938 static struct pool_workqueue *numa_pwq_tbl_install(struct workqueue_struct *wq, in numa_pwq_tbl_install() argument
3945 lockdep_assert_held(&wq->mutex); in numa_pwq_tbl_install()
3950 old_pwq = rcu_access_pointer(wq->numa_pwq_tbl[node]); in numa_pwq_tbl_install()
3951 rcu_assign_pointer(wq->numa_pwq_tbl[node], pwq); in numa_pwq_tbl_install()
3957 struct workqueue_struct *wq; /* target workqueue */ member
3982 apply_wqattrs_prepare(struct workqueue_struct *wq, in apply_wqattrs_prepare() argument
4020 ctx->dfl_pwq = alloc_unbound_pwq(wq, new_attrs); in apply_wqattrs_prepare()
4026 ctx->pwq_tbl[node] = alloc_unbound_pwq(wq, tmp_attrs); in apply_wqattrs_prepare()
4040 ctx->wq = wq; in apply_wqattrs_prepare()
4057 mutex_lock(&ctx->wq->mutex); in apply_wqattrs_commit()
4059 copy_workqueue_attrs(ctx->wq->unbound_attrs, ctx->attrs); in apply_wqattrs_commit()
4063 ctx->pwq_tbl[node] = numa_pwq_tbl_install(ctx->wq, node, in apply_wqattrs_commit()
4068 swap(ctx->wq->dfl_pwq, ctx->dfl_pwq); in apply_wqattrs_commit()
4070 mutex_unlock(&ctx->wq->mutex); in apply_wqattrs_commit()
4086 static int apply_workqueue_attrs_locked(struct workqueue_struct *wq, in apply_workqueue_attrs_locked() argument
4092 if (WARN_ON(!(wq->flags & WQ_UNBOUND))) in apply_workqueue_attrs_locked()
4096 if (!list_empty(&wq->pwqs)) { in apply_workqueue_attrs_locked()
4097 if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) in apply_workqueue_attrs_locked()
4100 wq->flags &= ~__WQ_ORDERED; in apply_workqueue_attrs_locked()
4103 ctx = apply_wqattrs_prepare(wq, attrs); in apply_workqueue_attrs_locked()
4132 int apply_workqueue_attrs(struct workqueue_struct *wq, in apply_workqueue_attrs() argument
4140 ret = apply_workqueue_attrs_locked(wq, attrs); in apply_workqueue_attrs()
4168 static void wq_update_unbound_numa(struct workqueue_struct *wq, int cpu, in wq_update_unbound_numa() argument
4179 if (!wq_numa_enabled || !(wq->flags & WQ_UNBOUND) || in wq_update_unbound_numa()
4180 wq->unbound_attrs->no_numa) in wq_update_unbound_numa()
4191 copy_workqueue_attrs(target_attrs, wq->unbound_attrs); in wq_update_unbound_numa()
4192 pwq = unbound_pwq_by_node(wq, node); in wq_update_unbound_numa()
4200 if (wq_calc_node_cpumask(wq->dfl_pwq->pool->attrs, node, cpu_off, cpumask)) { in wq_update_unbound_numa()
4208 pwq = alloc_unbound_pwq(wq, target_attrs); in wq_update_unbound_numa()
4211 wq->name); in wq_update_unbound_numa()
4216 mutex_lock(&wq->mutex); in wq_update_unbound_numa()
4217 old_pwq = numa_pwq_tbl_install(wq, node, pwq); in wq_update_unbound_numa()
4221 mutex_lock(&wq->mutex); in wq_update_unbound_numa()
4222 raw_spin_lock_irq(&wq->dfl_pwq->pool->lock); in wq_update_unbound_numa()
4223 get_pwq(wq->dfl_pwq); in wq_update_unbound_numa()
4224 raw_spin_unlock_irq(&wq->dfl_pwq->pool->lock); in wq_update_unbound_numa()
4225 old_pwq = numa_pwq_tbl_install(wq, node, wq->dfl_pwq); in wq_update_unbound_numa()
4227 mutex_unlock(&wq->mutex); in wq_update_unbound_numa()
4231 static int alloc_and_link_pwqs(struct workqueue_struct *wq) in alloc_and_link_pwqs() argument
4233 bool highpri = wq->flags & WQ_HIGHPRI; in alloc_and_link_pwqs()
4236 if (!(wq->flags & WQ_UNBOUND)) { in alloc_and_link_pwqs()
4237 wq->cpu_pwqs = alloc_percpu(struct pool_workqueue); in alloc_and_link_pwqs()
4238 if (!wq->cpu_pwqs) in alloc_and_link_pwqs()
4243 per_cpu_ptr(wq->cpu_pwqs, cpu); in alloc_and_link_pwqs()
4247 init_pwq(pwq, wq, &cpu_pools[highpri]); in alloc_and_link_pwqs()
4249 mutex_lock(&wq->mutex); in alloc_and_link_pwqs()
4251 mutex_unlock(&wq->mutex); in alloc_and_link_pwqs()
4257 if (wq->flags & __WQ_ORDERED) { in alloc_and_link_pwqs()
4258 ret = apply_workqueue_attrs(wq, ordered_wq_attrs[highpri]); in alloc_and_link_pwqs()
4260 WARN(!ret && (wq->pwqs.next != &wq->dfl_pwq->pwqs_node || in alloc_and_link_pwqs()
4261 wq->pwqs.prev != &wq->dfl_pwq->pwqs_node), in alloc_and_link_pwqs()
4262 "ordering guarantee broken for workqueue %s\n", wq->name); in alloc_and_link_pwqs()
4264 ret = apply_workqueue_attrs(wq, unbound_std_wq_attrs[highpri]); in alloc_and_link_pwqs()
4287 static int init_rescuer(struct workqueue_struct *wq) in init_rescuer() argument
4292 if (!(wq->flags & WQ_MEM_RECLAIM)) in init_rescuer()
4299 rescuer->rescue_wq = wq; in init_rescuer()
4300 rescuer->task = kthread_create(rescuer_thread, rescuer, "%s", wq->name); in init_rescuer()
4307 wq->rescuer = rescuer; in init_rescuer()
4321 struct workqueue_struct *wq; in alloc_workqueue() local
4340 tbl_size = nr_node_ids * sizeof(wq->numa_pwq_tbl[0]); in alloc_workqueue()
4342 wq = kzalloc(sizeof(*wq) + tbl_size, GFP_KERNEL); in alloc_workqueue()
4343 if (!wq) in alloc_workqueue()
4347 wq->unbound_attrs = alloc_workqueue_attrs(); in alloc_workqueue()
4348 if (!wq->unbound_attrs) in alloc_workqueue()
4353 vsnprintf(wq->name, sizeof(wq->name), fmt, args); in alloc_workqueue()
4357 max_active = wq_clamp_max_active(max_active, flags, wq->name); in alloc_workqueue()
4360 wq->flags = flags; in alloc_workqueue()
4361 wq->saved_max_active = max_active; in alloc_workqueue()
4362 mutex_init(&wq->mutex); in alloc_workqueue()
4363 atomic_set(&wq->nr_pwqs_to_flush, 0); in alloc_workqueue()
4364 INIT_LIST_HEAD(&wq->pwqs); in alloc_workqueue()
4365 INIT_LIST_HEAD(&wq->flusher_queue); in alloc_workqueue()
4366 INIT_LIST_HEAD(&wq->flusher_overflow); in alloc_workqueue()
4367 INIT_LIST_HEAD(&wq->maydays); in alloc_workqueue()
4369 wq_init_lockdep(wq); in alloc_workqueue()
4370 INIT_LIST_HEAD(&wq->list); in alloc_workqueue()
4372 if (alloc_and_link_pwqs(wq) < 0) in alloc_workqueue()
4375 if (wq_online && init_rescuer(wq) < 0) in alloc_workqueue()
4378 if ((wq->flags & WQ_SYSFS) && workqueue_sysfs_register(wq)) in alloc_workqueue()
4388 mutex_lock(&wq->mutex); in alloc_workqueue()
4389 for_each_pwq(pwq, wq) in alloc_workqueue()
4391 mutex_unlock(&wq->mutex); in alloc_workqueue()
4393 list_add_tail_rcu(&wq->list, &workqueues); in alloc_workqueue()
4397 return wq; in alloc_workqueue()
4400 wq_unregister_lockdep(wq); in alloc_workqueue()
4401 wq_free_lockdep(wq); in alloc_workqueue()
4403 free_workqueue_attrs(wq->unbound_attrs); in alloc_workqueue()
4404 kfree(wq); in alloc_workqueue()
4407 destroy_workqueue(wq); in alloc_workqueue()
4420 if ((pwq != pwq->wq->dfl_pwq) && (pwq->refcnt > 1)) in pwq_busy()
4434 void destroy_workqueue(struct workqueue_struct *wq) in destroy_workqueue() argument
4443 workqueue_sysfs_unregister(wq); in destroy_workqueue()
4446 drain_workqueue(wq); in destroy_workqueue()
4449 if (wq->rescuer) { in destroy_workqueue()
4450 struct worker *rescuer = wq->rescuer; in destroy_workqueue()
4454 wq->rescuer = NULL; in destroy_workqueue()
4467 mutex_lock(&wq->mutex); in destroy_workqueue()
4468 for_each_pwq(pwq, wq) { in destroy_workqueue()
4472 __func__, wq->name); in destroy_workqueue()
4475 mutex_unlock(&wq->mutex); in destroy_workqueue()
4477 show_one_workqueue(wq); in destroy_workqueue()
4482 mutex_unlock(&wq->mutex); in destroy_workqueue()
4488 list_del_rcu(&wq->list); in destroy_workqueue()
4491 if (!(wq->flags & WQ_UNBOUND)) { in destroy_workqueue()
4492 wq_unregister_lockdep(wq); in destroy_workqueue()
4497 call_rcu(&wq->rcu, rcu_free_wq); in destroy_workqueue()
4505 pwq = rcu_access_pointer(wq->numa_pwq_tbl[node]); in destroy_workqueue()
4506 RCU_INIT_POINTER(wq->numa_pwq_tbl[node], NULL); in destroy_workqueue()
4514 pwq = wq->dfl_pwq; in destroy_workqueue()
4515 wq->dfl_pwq = NULL; in destroy_workqueue()
4531 void workqueue_set_max_active(struct workqueue_struct *wq, int max_active) in workqueue_set_max_active() argument
4536 if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) in workqueue_set_max_active()
4539 max_active = wq_clamp_max_active(max_active, wq->flags, wq->name); in workqueue_set_max_active()
4541 mutex_lock(&wq->mutex); in workqueue_set_max_active()
4543 wq->flags &= ~__WQ_ORDERED; in workqueue_set_max_active()
4544 wq->saved_max_active = max_active; in workqueue_set_max_active()
4546 for_each_pwq(pwq, wq) in workqueue_set_max_active()
4549 mutex_unlock(&wq->mutex); in workqueue_set_max_active()
4602 bool workqueue_congested(int cpu, struct workqueue_struct *wq) in workqueue_congested() argument
4613 if (!(wq->flags & WQ_UNBOUND)) in workqueue_congested()
4614 pwq = per_cpu_ptr(wq->cpu_pwqs, cpu); in workqueue_congested()
4616 pwq = unbound_pwq_by_node(wq, cpu_to_node(cpu)); in workqueue_congested()
4702 struct workqueue_struct *wq = NULL; in print_worker_info() local
4720 copy_from_kernel_nofault(&wq, &pwq->wq, sizeof(wq)); in print_worker_info()
4721 copy_from_kernel_nofault(name, wq->name, sizeof(name) - 1); in print_worker_info()
4830 void show_one_workqueue(struct workqueue_struct *wq) in show_one_workqueue() argument
4836 for_each_pwq(pwq, wq) { in show_one_workqueue()
4845 pr_info("workqueue %s: flags=0x%x\n", wq->name, wq->flags); in show_one_workqueue()
4847 for_each_pwq(pwq, wq) { in show_one_workqueue()
4927 struct workqueue_struct *wq; in show_all_workqueues() local
4935 list_for_each_entry_rcu(wq, &workqueues, list) in show_all_workqueues()
4936 show_one_workqueue(wq); in show_all_workqueues()
5171 struct workqueue_struct *wq; in workqueue_online_cpu() local
5188 list_for_each_entry(wq, &workqueues, list) in workqueue_online_cpu()
5189 wq_update_unbound_numa(wq, cpu, true); in workqueue_online_cpu()
5197 struct workqueue_struct *wq; in workqueue_offline_cpu() local
5207 list_for_each_entry(wq, &workqueues, list) in workqueue_offline_cpu()
5208 wq_update_unbound_numa(wq, cpu, false); in workqueue_offline_cpu()
5289 struct workqueue_struct *wq; in freeze_workqueues_begin() local
5297 list_for_each_entry(wq, &workqueues, list) { in freeze_workqueues_begin()
5298 mutex_lock(&wq->mutex); in freeze_workqueues_begin()
5299 for_each_pwq(pwq, wq) in freeze_workqueues_begin()
5301 mutex_unlock(&wq->mutex); in freeze_workqueues_begin()
5323 struct workqueue_struct *wq; in freeze_workqueues_busy() local
5330 list_for_each_entry(wq, &workqueues, list) { in freeze_workqueues_busy()
5331 if (!(wq->flags & WQ_FREEZABLE)) in freeze_workqueues_busy()
5338 for_each_pwq(pwq, wq) { in freeze_workqueues_busy()
5364 struct workqueue_struct *wq; in thaw_workqueues() local
5375 list_for_each_entry(wq, &workqueues, list) { in thaw_workqueues()
5376 mutex_lock(&wq->mutex); in thaw_workqueues()
5377 for_each_pwq(pwq, wq) in thaw_workqueues()
5379 mutex_unlock(&wq->mutex); in thaw_workqueues()
5391 struct workqueue_struct *wq; in workqueue_apply_unbound_cpumask() local
5396 list_for_each_entry(wq, &workqueues, list) { in workqueue_apply_unbound_cpumask()
5397 if (!(wq->flags & WQ_UNBOUND)) in workqueue_apply_unbound_cpumask()
5401 if (!list_empty(&wq->pwqs)) { in workqueue_apply_unbound_cpumask()
5402 if (wq->flags & __WQ_ORDERED_EXPLICIT) in workqueue_apply_unbound_cpumask()
5404 wq->flags &= ~__WQ_ORDERED; in workqueue_apply_unbound_cpumask()
5407 ctx = apply_wqattrs_prepare(wq, wq->unbound_attrs); in workqueue_apply_unbound_cpumask()
5495 struct workqueue_struct *wq; member
5503 return wq_dev->wq; in dev_to_wq()
5509 struct workqueue_struct *wq = dev_to_wq(dev); in per_cpu_show() local
5511 return scnprintf(buf, PAGE_SIZE, "%d\n", (bool)!(wq->flags & WQ_UNBOUND)); in per_cpu_show()
5518 struct workqueue_struct *wq = dev_to_wq(dev); in max_active_show() local
5520 return scnprintf(buf, PAGE_SIZE, "%d\n", wq->saved_max_active); in max_active_show()
5527 struct workqueue_struct *wq = dev_to_wq(dev); in max_active_store() local
5533 workqueue_set_max_active(wq, val); in max_active_store()
5548 struct workqueue_struct *wq = dev_to_wq(dev); in wq_pool_ids_show() local
5557 unbound_pwq_by_node(wq, node)->pool->id); in wq_pool_ids_show()
5570 struct workqueue_struct *wq = dev_to_wq(dev); in wq_nice_show() local
5573 mutex_lock(&wq->mutex); in wq_nice_show()
5574 written = scnprintf(buf, PAGE_SIZE, "%d\n", wq->unbound_attrs->nice); in wq_nice_show()
5575 mutex_unlock(&wq->mutex); in wq_nice_show()
5581 static struct workqueue_attrs *wq_sysfs_prep_attrs(struct workqueue_struct *wq) in wq_sysfs_prep_attrs() argument
5591 copy_workqueue_attrs(attrs, wq->unbound_attrs); in wq_sysfs_prep_attrs()
5598 struct workqueue_struct *wq = dev_to_wq(dev); in wq_nice_store() local
5604 attrs = wq_sysfs_prep_attrs(wq); in wq_nice_store()
5610 ret = apply_workqueue_attrs_locked(wq, attrs); in wq_nice_store()
5623 struct workqueue_struct *wq = dev_to_wq(dev); in wq_cpumask_show() local
5626 mutex_lock(&wq->mutex); in wq_cpumask_show()
5628 cpumask_pr_args(wq->unbound_attrs->cpumask)); in wq_cpumask_show()
5629 mutex_unlock(&wq->mutex); in wq_cpumask_show()
5637 struct workqueue_struct *wq = dev_to_wq(dev); in wq_cpumask_store() local
5643 attrs = wq_sysfs_prep_attrs(wq); in wq_cpumask_store()
5649 ret = apply_workqueue_attrs_locked(wq, attrs); in wq_cpumask_store()
5660 struct workqueue_struct *wq = dev_to_wq(dev); in wq_numa_show() local
5663 mutex_lock(&wq->mutex); in wq_numa_show()
5665 !wq->unbound_attrs->no_numa); in wq_numa_show()
5666 mutex_unlock(&wq->mutex); in wq_numa_show()
5674 struct workqueue_struct *wq = dev_to_wq(dev); in wq_numa_store() local
5680 attrs = wq_sysfs_prep_attrs(wq); in wq_numa_store()
5687 ret = apply_workqueue_attrs_locked(wq, attrs); in wq_numa_store()
5777 int workqueue_sysfs_register(struct workqueue_struct *wq) in workqueue_sysfs_register() argument
5787 if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) in workqueue_sysfs_register()
5790 wq->wq_dev = wq_dev = kzalloc(sizeof(*wq_dev), GFP_KERNEL); in workqueue_sysfs_register()
5794 wq_dev->wq = wq; in workqueue_sysfs_register()
5797 dev_set_name(&wq_dev->dev, "%s", wq->name); in workqueue_sysfs_register()
5808 wq->wq_dev = NULL; in workqueue_sysfs_register()
5812 if (wq->flags & WQ_UNBOUND) { in workqueue_sysfs_register()
5819 wq->wq_dev = NULL; in workqueue_sysfs_register()
5836 static void workqueue_sysfs_unregister(struct workqueue_struct *wq) in workqueue_sysfs_unregister() argument
5838 struct wq_device *wq_dev = wq->wq_dev; in workqueue_sysfs_unregister()
5840 if (!wq->wq_dev) in workqueue_sysfs_unregister()
5843 wq->wq_dev = NULL; in workqueue_sysfs_unregister()
5847 static void workqueue_sysfs_unregister(struct workqueue_struct *wq) { } in workqueue_sysfs_unregister() argument
6133 struct workqueue_struct *wq; in workqueue_init() local
6156 list_for_each_entry(wq, &workqueues, list) { in workqueue_init()
6157 wq_update_unbound_numa(wq, smp_processor_id(), true); in workqueue_init()
6158 WARN(init_rescuer(wq), in workqueue_init()
6160 wq->name); in workqueue_init()