Lines Matching refs:wq
206 struct workqueue_struct *wq; /* I: the owning workqueue */ member
363 static void workqueue_sysfs_unregister(struct workqueue_struct *wq);
377 #define assert_rcu_or_wq_mutex_or_pool_mutex(wq) \ argument
379 !lockdep_is_held(&wq->mutex) && \
432 #define for_each_pwq(pwq, wq) \ argument
433 list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node, \
434 lockdep_is_held(&(wq->mutex)))
567 static struct pool_workqueue *unbound_pwq_by_node(struct workqueue_struct *wq, in unbound_pwq_by_node() argument
570 assert_rcu_or_wq_mutex_or_pool_mutex(wq); in unbound_pwq_by_node()
579 return wq->dfl_pwq; in unbound_pwq_by_node()
581 return rcu_dereference_raw(wq->numa_pwq_tbl[node]); in unbound_pwq_by_node()
1126 if (WARN_ON_ONCE(!(pwq->wq->flags & WQ_UNBOUND))) in put_pwq()
1219 if (atomic_dec_and_test(&pwq->wq->nr_pwqs_to_flush)) in pwq_dec_nr_in_flight()
1220 complete(&pwq->wq->first_flusher->done); in pwq_dec_nr_in_flight()
1373 static bool is_chained_work(struct workqueue_struct *wq) in is_chained_work() argument
1382 return worker && worker->current_pwq->wq == wq; in is_chained_work()
1418 static void __queue_work(int cpu, struct workqueue_struct *wq, in __queue_work() argument
1437 if (unlikely(wq->flags & __WQ_DRAINING) && in __queue_work()
1438 WARN_ON_ONCE(!is_chained_work(wq))) in __queue_work()
1443 if (wq->flags & WQ_UNBOUND) { in __queue_work()
1446 pwq = unbound_pwq_by_node(wq, cpu_to_node(cpu)); in __queue_work()
1450 pwq = per_cpu_ptr(wq->cpu_pwqs, cpu); in __queue_work()
1466 if (worker && worker->current_pwq->wq == wq) { in __queue_work()
1486 if (wq->flags & WQ_UNBOUND) { in __queue_work()
1493 wq->name, cpu); in __queue_work()
1535 bool queue_work_on(int cpu, struct workqueue_struct *wq, in queue_work_on() argument
1544 __queue_work(cpu, wq, work); in queue_work_on()
1606 bool queue_work_node(int node, struct workqueue_struct *wq, in queue_work_node() argument
1621 WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND)); in queue_work_node()
1628 __queue_work(cpu, wq, work); in queue_work_node()
1642 __queue_work(dwork->cpu, dwork->wq, &dwork->work); in delayed_work_timer_fn()
1646 static void __queue_delayed_work(int cpu, struct workqueue_struct *wq, in __queue_delayed_work() argument
1652 WARN_ON_ONCE(!wq); in __queue_delayed_work()
1671 __queue_work(cpu, wq, &dwork->work); in __queue_delayed_work()
1675 dwork->wq = wq; in __queue_delayed_work()
1696 bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq, in queue_delayed_work_on() argument
1707 __queue_delayed_work(cpu, wq, dwork, delay); in queue_delayed_work_on()
1734 bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq, in mod_delayed_work_on() argument
1745 __queue_delayed_work(cpu, wq, dwork, delay); in mod_delayed_work_on()
1760 __queue_work(WORK_CPU_UNBOUND, rwork->wq, &rwork->work); in rcu_work_rcufn()
1774 bool queue_rcu_work(struct workqueue_struct *wq, struct rcu_work *rwork) in queue_rcu_work() argument
1779 rwork->wq = wq; in queue_rcu_work()
2044 struct workqueue_struct *wq = pwq->wq; in send_mayday() local
2048 if (!wq->rescuer) in send_mayday()
2059 list_add_tail(&pwq->mayday_node, &wq->maydays); in send_mayday()
2060 wake_up_process(wq->rescuer->task); in send_mayday()
2198 bool cpu_intensive = pwq->wq->flags & WQ_CPU_INTENSIVE; in process_one_work()
2241 strscpy(worker->desc, pwq->wq->name, WORKER_DESC_LEN); in process_one_work()
2274 lock_map_acquire(&pwq->wq->lockdep_map); in process_one_work()
2306 lock_map_release(&pwq->wq->lockdep_map); in process_one_work()
2494 struct workqueue_struct *wq = rescuer->rescue_wq; in rescuer_thread() local
2521 while (!list_empty(&wq->maydays)) { in rescuer_thread()
2522 struct pool_workqueue *pwq = list_first_entry(&wq->maydays, in rescuer_thread()
2569 if (wq->rescuer && list_empty(&pwq->mayday_node)) { in rescuer_thread()
2571 list_add_tail(&pwq->mayday_node, &wq->maydays); in rescuer_thread()
2637 WARN_ONCE(worker && ((worker->current_pwq->wq->flags & in check_flush_dependency()
2640 worker->current_pwq->wq->name, worker->current_func, in check_flush_dependency()
2751 static bool flush_workqueue_prep_pwqs(struct workqueue_struct *wq, in flush_workqueue_prep_pwqs() argument
2758 WARN_ON_ONCE(atomic_read(&wq->nr_pwqs_to_flush)); in flush_workqueue_prep_pwqs()
2759 atomic_set(&wq->nr_pwqs_to_flush, 1); in flush_workqueue_prep_pwqs()
2762 for_each_pwq(pwq, wq) { in flush_workqueue_prep_pwqs()
2772 atomic_inc(&wq->nr_pwqs_to_flush); in flush_workqueue_prep_pwqs()
2785 if (flush_color >= 0 && atomic_dec_and_test(&wq->nr_pwqs_to_flush)) in flush_workqueue_prep_pwqs()
2786 complete(&wq->first_flusher->done); in flush_workqueue_prep_pwqs()
2798 void flush_workqueue(struct workqueue_struct *wq) in flush_workqueue() argument
2803 .done = COMPLETION_INITIALIZER_ONSTACK_MAP(this_flusher.done, wq->lockdep_map), in flush_workqueue()
2810 lock_map_acquire(&wq->lockdep_map); in flush_workqueue()
2811 lock_map_release(&wq->lockdep_map); in flush_workqueue()
2813 mutex_lock(&wq->mutex); in flush_workqueue()
2818 next_color = work_next_color(wq->work_color); in flush_workqueue()
2820 if (next_color != wq->flush_color) { in flush_workqueue()
2826 WARN_ON_ONCE(!list_empty(&wq->flusher_overflow)); in flush_workqueue()
2827 this_flusher.flush_color = wq->work_color; in flush_workqueue()
2828 wq->work_color = next_color; in flush_workqueue()
2830 if (!wq->first_flusher) { in flush_workqueue()
2832 WARN_ON_ONCE(wq->flush_color != this_flusher.flush_color); in flush_workqueue()
2834 wq->first_flusher = &this_flusher; in flush_workqueue()
2836 if (!flush_workqueue_prep_pwqs(wq, wq->flush_color, in flush_workqueue()
2837 wq->work_color)) { in flush_workqueue()
2839 wq->flush_color = next_color; in flush_workqueue()
2840 wq->first_flusher = NULL; in flush_workqueue()
2845 WARN_ON_ONCE(wq->flush_color == this_flusher.flush_color); in flush_workqueue()
2846 list_add_tail(&this_flusher.list, &wq->flusher_queue); in flush_workqueue()
2847 flush_workqueue_prep_pwqs(wq, -1, wq->work_color); in flush_workqueue()
2855 list_add_tail(&this_flusher.list, &wq->flusher_overflow); in flush_workqueue()
2858 check_flush_dependency(wq, NULL); in flush_workqueue()
2860 mutex_unlock(&wq->mutex); in flush_workqueue()
2870 if (READ_ONCE(wq->first_flusher) != &this_flusher) in flush_workqueue()
2873 mutex_lock(&wq->mutex); in flush_workqueue()
2876 if (wq->first_flusher != &this_flusher) in flush_workqueue()
2879 WRITE_ONCE(wq->first_flusher, NULL); in flush_workqueue()
2882 WARN_ON_ONCE(wq->flush_color != this_flusher.flush_color); in flush_workqueue()
2888 list_for_each_entry_safe(next, tmp, &wq->flusher_queue, list) { in flush_workqueue()
2889 if (next->flush_color != wq->flush_color) in flush_workqueue()
2895 WARN_ON_ONCE(!list_empty(&wq->flusher_overflow) && in flush_workqueue()
2896 wq->flush_color != work_next_color(wq->work_color)); in flush_workqueue()
2899 wq->flush_color = work_next_color(wq->flush_color); in flush_workqueue()
2902 if (!list_empty(&wq->flusher_overflow)) { in flush_workqueue()
2909 list_for_each_entry(tmp, &wq->flusher_overflow, list) in flush_workqueue()
2910 tmp->flush_color = wq->work_color; in flush_workqueue()
2912 wq->work_color = work_next_color(wq->work_color); in flush_workqueue()
2914 list_splice_tail_init(&wq->flusher_overflow, in flush_workqueue()
2915 &wq->flusher_queue); in flush_workqueue()
2916 flush_workqueue_prep_pwqs(wq, -1, wq->work_color); in flush_workqueue()
2919 if (list_empty(&wq->flusher_queue)) { in flush_workqueue()
2920 WARN_ON_ONCE(wq->flush_color != wq->work_color); in flush_workqueue()
2928 WARN_ON_ONCE(wq->flush_color == wq->work_color); in flush_workqueue()
2929 WARN_ON_ONCE(wq->flush_color != next->flush_color); in flush_workqueue()
2932 wq->first_flusher = next; in flush_workqueue()
2934 if (flush_workqueue_prep_pwqs(wq, wq->flush_color, -1)) in flush_workqueue()
2941 wq->first_flusher = NULL; in flush_workqueue()
2945 mutex_unlock(&wq->mutex); in flush_workqueue()
2960 void drain_workqueue(struct workqueue_struct *wq) in drain_workqueue() argument
2970 mutex_lock(&wq->mutex); in drain_workqueue()
2971 if (!wq->nr_drainers++) in drain_workqueue()
2972 wq->flags |= __WQ_DRAINING; in drain_workqueue()
2973 mutex_unlock(&wq->mutex); in drain_workqueue()
2975 flush_workqueue(wq); in drain_workqueue()
2977 mutex_lock(&wq->mutex); in drain_workqueue()
2979 for_each_pwq(pwq, wq) { in drain_workqueue()
2992 wq->name, flush_cnt); in drain_workqueue()
2994 mutex_unlock(&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()
3033 check_flush_dependency(pwq->wq, work); in start_flush_work()
3048 (pwq->wq->saved_max_active == 1 || pwq->wq->rescuer)) { in start_flush_work()
3049 lock_map_acquire(&pwq->wq->lockdep_map); in start_flush_work()
3050 lock_map_release(&pwq->wq->lockdep_map); in start_flush_work()
3217 __queue_work(dwork->cpu, dwork->wq, &dwork->work); in flush_delayed_work()
3483 static void wq_init_lockdep(struct workqueue_struct *wq) in wq_init_lockdep() argument
3487 lockdep_register_key(&wq->key); in wq_init_lockdep()
3488 lock_name = kasprintf(GFP_KERNEL, "%s%s", "(wq_completion)", wq->name); in wq_init_lockdep()
3490 lock_name = wq->name; in wq_init_lockdep()
3492 wq->lock_name = lock_name; in wq_init_lockdep()
3493 lockdep_init_map(&wq->lockdep_map, lock_name, &wq->key, 0); in wq_init_lockdep()
3496 static void wq_unregister_lockdep(struct workqueue_struct *wq) in wq_unregister_lockdep() argument
3498 lockdep_unregister_key(&wq->key); in wq_unregister_lockdep()
3501 static void wq_free_lockdep(struct workqueue_struct *wq) in wq_free_lockdep() argument
3503 if (wq->lock_name != wq->name) in wq_free_lockdep()
3504 kfree(wq->lock_name); in wq_free_lockdep()
3507 static void wq_init_lockdep(struct workqueue_struct *wq) in wq_init_lockdep() argument
3511 static void wq_unregister_lockdep(struct workqueue_struct *wq) in wq_unregister_lockdep() argument
3515 static void wq_free_lockdep(struct workqueue_struct *wq) in wq_free_lockdep() argument
3522 struct workqueue_struct *wq = in rcu_free_wq() local
3525 wq_free_lockdep(wq); in rcu_free_wq()
3527 if (!(wq->flags & WQ_UNBOUND)) in rcu_free_wq()
3528 free_percpu(wq->cpu_pwqs); in rcu_free_wq()
3530 free_workqueue_attrs(wq->unbound_attrs); in rcu_free_wq()
3532 kfree(wq); in rcu_free_wq()
3707 struct workqueue_struct *wq = pwq->wq; in pwq_unbound_release_workfn() local
3716 if (WARN_ON_ONCE(!(wq->flags & WQ_UNBOUND))) in pwq_unbound_release_workfn()
3719 mutex_lock(&wq->mutex); in pwq_unbound_release_workfn()
3721 is_last = list_empty(&wq->pwqs); in pwq_unbound_release_workfn()
3722 mutex_unlock(&wq->mutex); in pwq_unbound_release_workfn()
3736 wq_unregister_lockdep(wq); in pwq_unbound_release_workfn()
3737 call_rcu(&wq->rcu, rcu_free_wq); in pwq_unbound_release_workfn()
3751 struct workqueue_struct *wq = pwq->wq; in pwq_adjust_max_active() local
3752 bool freezable = wq->flags & WQ_FREEZABLE; in pwq_adjust_max_active()
3756 lockdep_assert_held(&wq->mutex); in pwq_adjust_max_active()
3759 if (!freezable && pwq->max_active == wq->saved_max_active) in pwq_adjust_max_active()
3773 pwq->max_active = wq->saved_max_active; in pwq_adjust_max_active()
3797 static void init_pwq(struct pool_workqueue *pwq, struct workqueue_struct *wq, in init_pwq() argument
3805 pwq->wq = wq; in init_pwq()
3817 struct workqueue_struct *wq = pwq->wq; in link_pwq() local
3819 lockdep_assert_held(&wq->mutex); in link_pwq()
3826 pwq->work_color = wq->work_color; in link_pwq()
3832 list_add_rcu(&pwq->pwqs_node, &wq->pwqs); in link_pwq()
3836 static struct pool_workqueue *alloc_unbound_pwq(struct workqueue_struct *wq, in alloc_unbound_pwq() argument
3854 init_pwq(pwq, wq, pool); in alloc_unbound_pwq()
3911 static struct pool_workqueue *numa_pwq_tbl_install(struct workqueue_struct *wq, in numa_pwq_tbl_install() argument
3918 lockdep_assert_held(&wq->mutex); in numa_pwq_tbl_install()
3923 old_pwq = rcu_access_pointer(wq->numa_pwq_tbl[node]); in numa_pwq_tbl_install()
3924 rcu_assign_pointer(wq->numa_pwq_tbl[node], pwq); in numa_pwq_tbl_install()
3930 struct workqueue_struct *wq; /* target workqueue */ member
3955 apply_wqattrs_prepare(struct workqueue_struct *wq, in apply_wqattrs_prepare() argument
3993 ctx->dfl_pwq = alloc_unbound_pwq(wq, new_attrs); in apply_wqattrs_prepare()
3999 ctx->pwq_tbl[node] = alloc_unbound_pwq(wq, tmp_attrs); in apply_wqattrs_prepare()
4013 ctx->wq = wq; in apply_wqattrs_prepare()
4030 mutex_lock(&ctx->wq->mutex); in apply_wqattrs_commit()
4032 copy_workqueue_attrs(ctx->wq->unbound_attrs, ctx->attrs); in apply_wqattrs_commit()
4036 ctx->pwq_tbl[node] = numa_pwq_tbl_install(ctx->wq, node, in apply_wqattrs_commit()
4041 swap(ctx->wq->dfl_pwq, ctx->dfl_pwq); in apply_wqattrs_commit()
4043 mutex_unlock(&ctx->wq->mutex); in apply_wqattrs_commit()
4059 static int apply_workqueue_attrs_locked(struct workqueue_struct *wq, in apply_workqueue_attrs_locked() argument
4065 if (WARN_ON(!(wq->flags & WQ_UNBOUND))) in apply_workqueue_attrs_locked()
4069 if (!list_empty(&wq->pwqs)) { in apply_workqueue_attrs_locked()
4070 if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) in apply_workqueue_attrs_locked()
4073 wq->flags &= ~__WQ_ORDERED; in apply_workqueue_attrs_locked()
4076 ctx = apply_wqattrs_prepare(wq, attrs); in apply_workqueue_attrs_locked()
4105 int apply_workqueue_attrs(struct workqueue_struct *wq, in apply_workqueue_attrs() argument
4113 ret = apply_workqueue_attrs_locked(wq, attrs); in apply_workqueue_attrs()
4141 static void wq_update_unbound_numa(struct workqueue_struct *wq, int cpu, in wq_update_unbound_numa() argument
4152 if (!wq_numa_enabled || !(wq->flags & WQ_UNBOUND) || in wq_update_unbound_numa()
4153 wq->unbound_attrs->no_numa) in wq_update_unbound_numa()
4164 copy_workqueue_attrs(target_attrs, wq->unbound_attrs); in wq_update_unbound_numa()
4165 pwq = unbound_pwq_by_node(wq, node); in wq_update_unbound_numa()
4173 if (wq_calc_node_cpumask(wq->dfl_pwq->pool->attrs, node, cpu_off, cpumask)) { in wq_update_unbound_numa()
4181 pwq = alloc_unbound_pwq(wq, target_attrs); in wq_update_unbound_numa()
4184 wq->name); in wq_update_unbound_numa()
4189 mutex_lock(&wq->mutex); in wq_update_unbound_numa()
4190 old_pwq = numa_pwq_tbl_install(wq, node, pwq); in wq_update_unbound_numa()
4194 mutex_lock(&wq->mutex); in wq_update_unbound_numa()
4195 raw_spin_lock_irq(&wq->dfl_pwq->pool->lock); in wq_update_unbound_numa()
4196 get_pwq(wq->dfl_pwq); in wq_update_unbound_numa()
4197 raw_spin_unlock_irq(&wq->dfl_pwq->pool->lock); in wq_update_unbound_numa()
4198 old_pwq = numa_pwq_tbl_install(wq, node, wq->dfl_pwq); in wq_update_unbound_numa()
4200 mutex_unlock(&wq->mutex); in wq_update_unbound_numa()
4204 static int alloc_and_link_pwqs(struct workqueue_struct *wq) in alloc_and_link_pwqs() argument
4206 bool highpri = wq->flags & WQ_HIGHPRI; in alloc_and_link_pwqs()
4209 if (!(wq->flags & WQ_UNBOUND)) { in alloc_and_link_pwqs()
4210 wq->cpu_pwqs = alloc_percpu(struct pool_workqueue); in alloc_and_link_pwqs()
4211 if (!wq->cpu_pwqs) in alloc_and_link_pwqs()
4216 per_cpu_ptr(wq->cpu_pwqs, cpu); in alloc_and_link_pwqs()
4220 init_pwq(pwq, wq, &cpu_pools[highpri]); in alloc_and_link_pwqs()
4222 mutex_lock(&wq->mutex); in alloc_and_link_pwqs()
4224 mutex_unlock(&wq->mutex); in alloc_and_link_pwqs()
4230 if (wq->flags & __WQ_ORDERED) { in alloc_and_link_pwqs()
4231 ret = apply_workqueue_attrs(wq, ordered_wq_attrs[highpri]); in alloc_and_link_pwqs()
4233 WARN(!ret && (wq->pwqs.next != &wq->dfl_pwq->pwqs_node || in alloc_and_link_pwqs()
4234 wq->pwqs.prev != &wq->dfl_pwq->pwqs_node), in alloc_and_link_pwqs()
4235 "ordering guarantee broken for workqueue %s\n", wq->name); in alloc_and_link_pwqs()
4237 ret = apply_workqueue_attrs(wq, unbound_std_wq_attrs[highpri]); in alloc_and_link_pwqs()
4260 static int init_rescuer(struct workqueue_struct *wq) in init_rescuer() argument
4265 if (!(wq->flags & WQ_MEM_RECLAIM)) in init_rescuer()
4272 rescuer->rescue_wq = wq; in init_rescuer()
4273 rescuer->task = kthread_create(rescuer_thread, rescuer, "%s", wq->name); in init_rescuer()
4280 wq->rescuer = rescuer; in init_rescuer()
4294 struct workqueue_struct *wq; in alloc_workqueue() local
4313 tbl_size = nr_node_ids * sizeof(wq->numa_pwq_tbl[0]); in alloc_workqueue()
4315 wq = kzalloc(sizeof(*wq) + tbl_size, GFP_KERNEL); in alloc_workqueue()
4316 if (!wq) in alloc_workqueue()
4320 wq->unbound_attrs = alloc_workqueue_attrs(); in alloc_workqueue()
4321 if (!wq->unbound_attrs) in alloc_workqueue()
4326 vsnprintf(wq->name, sizeof(wq->name), fmt, args); in alloc_workqueue()
4330 max_active = wq_clamp_max_active(max_active, flags, wq->name); in alloc_workqueue()
4333 wq->flags = flags; in alloc_workqueue()
4334 wq->saved_max_active = max_active; in alloc_workqueue()
4335 mutex_init(&wq->mutex); in alloc_workqueue()
4336 atomic_set(&wq->nr_pwqs_to_flush, 0); in alloc_workqueue()
4337 INIT_LIST_HEAD(&wq->pwqs); in alloc_workqueue()
4338 INIT_LIST_HEAD(&wq->flusher_queue); in alloc_workqueue()
4339 INIT_LIST_HEAD(&wq->flusher_overflow); in alloc_workqueue()
4340 INIT_LIST_HEAD(&wq->maydays); in alloc_workqueue()
4342 wq_init_lockdep(wq); in alloc_workqueue()
4343 INIT_LIST_HEAD(&wq->list); in alloc_workqueue()
4345 if (alloc_and_link_pwqs(wq) < 0) in alloc_workqueue()
4348 if (wq_online && init_rescuer(wq) < 0) in alloc_workqueue()
4351 if ((wq->flags & WQ_SYSFS) && workqueue_sysfs_register(wq)) in alloc_workqueue()
4361 mutex_lock(&wq->mutex); in alloc_workqueue()
4362 for_each_pwq(pwq, wq) in alloc_workqueue()
4364 mutex_unlock(&wq->mutex); in alloc_workqueue()
4366 list_add_tail_rcu(&wq->list, &workqueues); in alloc_workqueue()
4370 return wq; in alloc_workqueue()
4373 wq_unregister_lockdep(wq); in alloc_workqueue()
4374 wq_free_lockdep(wq); in alloc_workqueue()
4376 free_workqueue_attrs(wq->unbound_attrs); in alloc_workqueue()
4377 kfree(wq); in alloc_workqueue()
4380 destroy_workqueue(wq); in alloc_workqueue()
4393 if ((pwq != pwq->wq->dfl_pwq) && (pwq->refcnt > 1)) in pwq_busy()
4407 void destroy_workqueue(struct workqueue_struct *wq) in destroy_workqueue() argument
4416 workqueue_sysfs_unregister(wq); in destroy_workqueue()
4419 drain_workqueue(wq); in destroy_workqueue()
4422 if (wq->rescuer) { in destroy_workqueue()
4423 struct worker *rescuer = wq->rescuer; in destroy_workqueue()
4427 wq->rescuer = NULL; in destroy_workqueue()
4440 mutex_lock(&wq->mutex); in destroy_workqueue()
4441 for_each_pwq(pwq, wq) { in destroy_workqueue()
4445 __func__, wq->name); in destroy_workqueue()
4448 mutex_unlock(&wq->mutex); in destroy_workqueue()
4455 mutex_unlock(&wq->mutex); in destroy_workqueue()
4461 list_del_rcu(&wq->list); in destroy_workqueue()
4464 if (!(wq->flags & WQ_UNBOUND)) { in destroy_workqueue()
4465 wq_unregister_lockdep(wq); in destroy_workqueue()
4470 call_rcu(&wq->rcu, rcu_free_wq); in destroy_workqueue()
4478 pwq = rcu_access_pointer(wq->numa_pwq_tbl[node]); in destroy_workqueue()
4479 RCU_INIT_POINTER(wq->numa_pwq_tbl[node], NULL); in destroy_workqueue()
4487 pwq = wq->dfl_pwq; in destroy_workqueue()
4488 wq->dfl_pwq = NULL; in destroy_workqueue()
4504 void workqueue_set_max_active(struct workqueue_struct *wq, int max_active) in workqueue_set_max_active() argument
4509 if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) in workqueue_set_max_active()
4512 max_active = wq_clamp_max_active(max_active, wq->flags, wq->name); in workqueue_set_max_active()
4514 mutex_lock(&wq->mutex); in workqueue_set_max_active()
4516 wq->flags &= ~__WQ_ORDERED; in workqueue_set_max_active()
4517 wq->saved_max_active = max_active; in workqueue_set_max_active()
4519 for_each_pwq(pwq, wq) in workqueue_set_max_active()
4522 mutex_unlock(&wq->mutex); in workqueue_set_max_active()
4575 bool workqueue_congested(int cpu, struct workqueue_struct *wq) in workqueue_congested() argument
4586 if (!(wq->flags & WQ_UNBOUND)) in workqueue_congested()
4587 pwq = per_cpu_ptr(wq->cpu_pwqs, cpu); in workqueue_congested()
4589 pwq = unbound_pwq_by_node(wq, cpu_to_node(cpu)); in workqueue_congested()
4675 struct workqueue_struct *wq = NULL; in print_worker_info() local
4693 copy_from_kernel_nofault(&wq, &pwq->wq, sizeof(wq)); in print_worker_info()
4694 copy_from_kernel_nofault(name, wq->name, sizeof(name) - 1); in print_worker_info()
4807 struct workqueue_struct *wq; in show_workqueue_state() local
4816 list_for_each_entry_rcu(wq, &workqueues, list) { in show_workqueue_state()
4820 for_each_pwq(pwq, wq) { in show_workqueue_state()
4829 pr_info("workqueue %s: flags=0x%x\n", wq->name, wq->flags); in show_workqueue_state()
4831 for_each_pwq(pwq, wq) { in show_workqueue_state()
5099 struct workqueue_struct *wq; in workqueue_online_cpu() local
5116 list_for_each_entry(wq, &workqueues, list) in workqueue_online_cpu()
5117 wq_update_unbound_numa(wq, cpu, true); in workqueue_online_cpu()
5125 struct workqueue_struct *wq; in workqueue_offline_cpu() local
5135 list_for_each_entry(wq, &workqueues, list) in workqueue_offline_cpu()
5136 wq_update_unbound_numa(wq, cpu, false); in workqueue_offline_cpu()
5217 struct workqueue_struct *wq; in freeze_workqueues_begin() local
5225 list_for_each_entry(wq, &workqueues, list) { in freeze_workqueues_begin()
5226 mutex_lock(&wq->mutex); in freeze_workqueues_begin()
5227 for_each_pwq(pwq, wq) in freeze_workqueues_begin()
5229 mutex_unlock(&wq->mutex); in freeze_workqueues_begin()
5251 struct workqueue_struct *wq; in freeze_workqueues_busy() local
5258 list_for_each_entry(wq, &workqueues, list) { in freeze_workqueues_busy()
5259 if (!(wq->flags & WQ_FREEZABLE)) in freeze_workqueues_busy()
5266 for_each_pwq(pwq, wq) { in freeze_workqueues_busy()
5292 struct workqueue_struct *wq; in thaw_workqueues() local
5303 list_for_each_entry(wq, &workqueues, list) { in thaw_workqueues()
5304 mutex_lock(&wq->mutex); in thaw_workqueues()
5305 for_each_pwq(pwq, wq) in thaw_workqueues()
5307 mutex_unlock(&wq->mutex); in thaw_workqueues()
5319 struct workqueue_struct *wq; in workqueue_apply_unbound_cpumask() local
5324 list_for_each_entry(wq, &workqueues, list) { in workqueue_apply_unbound_cpumask()
5325 if (!(wq->flags & WQ_UNBOUND)) in workqueue_apply_unbound_cpumask()
5329 if (!list_empty(&wq->pwqs)) { in workqueue_apply_unbound_cpumask()
5330 if (wq->flags & __WQ_ORDERED_EXPLICIT) in workqueue_apply_unbound_cpumask()
5332 wq->flags &= ~__WQ_ORDERED; in workqueue_apply_unbound_cpumask()
5335 ctx = apply_wqattrs_prepare(wq, wq->unbound_attrs); in workqueue_apply_unbound_cpumask()
5423 struct workqueue_struct *wq; member
5431 return wq_dev->wq; in dev_to_wq()
5437 struct workqueue_struct *wq = dev_to_wq(dev); in per_cpu_show() local
5439 return scnprintf(buf, PAGE_SIZE, "%d\n", (bool)!(wq->flags & WQ_UNBOUND)); in per_cpu_show()
5446 struct workqueue_struct *wq = dev_to_wq(dev); in max_active_show() local
5448 return scnprintf(buf, PAGE_SIZE, "%d\n", wq->saved_max_active); in max_active_show()
5455 struct workqueue_struct *wq = dev_to_wq(dev); in max_active_store() local
5461 workqueue_set_max_active(wq, val); in max_active_store()
5476 struct workqueue_struct *wq = dev_to_wq(dev); in wq_pool_ids_show() local
5485 unbound_pwq_by_node(wq, node)->pool->id); in wq_pool_ids_show()
5498 struct workqueue_struct *wq = dev_to_wq(dev); in wq_nice_show() local
5501 mutex_lock(&wq->mutex); in wq_nice_show()
5502 written = scnprintf(buf, PAGE_SIZE, "%d\n", wq->unbound_attrs->nice); in wq_nice_show()
5503 mutex_unlock(&wq->mutex); in wq_nice_show()
5509 static struct workqueue_attrs *wq_sysfs_prep_attrs(struct workqueue_struct *wq) in wq_sysfs_prep_attrs() argument
5519 copy_workqueue_attrs(attrs, wq->unbound_attrs); in wq_sysfs_prep_attrs()
5526 struct workqueue_struct *wq = dev_to_wq(dev); in wq_nice_store() local
5532 attrs = wq_sysfs_prep_attrs(wq); in wq_nice_store()
5538 ret = apply_workqueue_attrs_locked(wq, attrs); in wq_nice_store()
5551 struct workqueue_struct *wq = dev_to_wq(dev); in wq_cpumask_show() local
5554 mutex_lock(&wq->mutex); in wq_cpumask_show()
5556 cpumask_pr_args(wq->unbound_attrs->cpumask)); in wq_cpumask_show()
5557 mutex_unlock(&wq->mutex); in wq_cpumask_show()
5565 struct workqueue_struct *wq = dev_to_wq(dev); in wq_cpumask_store() local
5571 attrs = wq_sysfs_prep_attrs(wq); in wq_cpumask_store()
5577 ret = apply_workqueue_attrs_locked(wq, attrs); in wq_cpumask_store()
5588 struct workqueue_struct *wq = dev_to_wq(dev); in wq_numa_show() local
5591 mutex_lock(&wq->mutex); in wq_numa_show()
5593 !wq->unbound_attrs->no_numa); in wq_numa_show()
5594 mutex_unlock(&wq->mutex); in wq_numa_show()
5602 struct workqueue_struct *wq = dev_to_wq(dev); in wq_numa_store() local
5608 attrs = wq_sysfs_prep_attrs(wq); in wq_numa_store()
5615 ret = apply_workqueue_attrs_locked(wq, attrs); in wq_numa_store()
5705 int workqueue_sysfs_register(struct workqueue_struct *wq) in workqueue_sysfs_register() argument
5715 if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) in workqueue_sysfs_register()
5718 wq->wq_dev = wq_dev = kzalloc(sizeof(*wq_dev), GFP_KERNEL); in workqueue_sysfs_register()
5722 wq_dev->wq = wq; in workqueue_sysfs_register()
5725 dev_set_name(&wq_dev->dev, "%s", wq->name); in workqueue_sysfs_register()
5736 wq->wq_dev = NULL; in workqueue_sysfs_register()
5740 if (wq->flags & WQ_UNBOUND) { in workqueue_sysfs_register()
5747 wq->wq_dev = NULL; in workqueue_sysfs_register()
5764 static void workqueue_sysfs_unregister(struct workqueue_struct *wq) in workqueue_sysfs_unregister() argument
5766 struct wq_device *wq_dev = wq->wq_dev; in workqueue_sysfs_unregister()
5768 if (!wq->wq_dev) in workqueue_sysfs_unregister()
5771 wq->wq_dev = NULL; in workqueue_sysfs_unregister()
5775 static void workqueue_sysfs_unregister(struct workqueue_struct *wq) { } in workqueue_sysfs_unregister() argument
6066 struct workqueue_struct *wq; in workqueue_init() local
6089 list_for_each_entry(wq, &workqueues, list) { in workqueue_init()
6090 wq_update_unbound_numa(wq, smp_processor_id(), true); in workqueue_init()
6091 WARN(init_rescuer(wq), in workqueue_init()
6093 wq->name); in workqueue_init()