Lines Matching refs:hctx
51 static void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
53 static int blk_hctx_poll(struct request_queue *q, struct blk_mq_hw_ctx *hctx,
60 static bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_has_pending() argument
62 return !list_empty_careful(&hctx->dispatch) || in blk_mq_hctx_has_pending()
63 sbitmap_any_bit_set(&hctx->ctx_map) || in blk_mq_hctx_has_pending()
64 blk_mq_sched_has_work(hctx); in blk_mq_hctx_has_pending()
70 static void blk_mq_hctx_mark_pending(struct blk_mq_hw_ctx *hctx, in blk_mq_hctx_mark_pending() argument
73 const int bit = ctx->index_hw[hctx->type]; in blk_mq_hctx_mark_pending()
75 if (!sbitmap_test_bit(&hctx->ctx_map, bit)) in blk_mq_hctx_mark_pending()
76 sbitmap_set_bit(&hctx->ctx_map, bit); in blk_mq_hctx_mark_pending()
79 static void blk_mq_hctx_clear_pending(struct blk_mq_hw_ctx *hctx, in blk_mq_hctx_clear_pending() argument
82 const int bit = ctx->index_hw[hctx->type]; in blk_mq_hctx_clear_pending()
84 sbitmap_clear_bit(&hctx->ctx_map, bit); in blk_mq_hctx_clear_pending()
307 struct blk_mq_hw_ctx *hctx; in blk_mq_wake_waiters() local
310 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_wake_waiters()
311 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_wake_waiters()
312 blk_mq_tag_wakeup_all(hctx->tags, true); in blk_mq_wake_waiters()
352 struct blk_mq_hw_ctx *hctx = data->hctx; in blk_mq_rq_ctx_init() local
358 rq->mq_hctx = hctx; in blk_mq_rq_ctx_init()
475 data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx); in __blk_mq_alloc_requests()
477 blk_mq_tag_busy(data->hctx); in __blk_mq_alloc_requests()
652 data.hctx = xa_load(&q->hctx_table, hctx_idx); in blk_mq_alloc_request_hctx()
653 if (!blk_mq_hw_queue_mapped(data.hctx)) in blk_mq_alloc_request_hctx()
655 cpu = cpumask_first_and(data.hctx->cpumask, cpu_online_mask); in blk_mq_alloc_request_hctx()
663 blk_mq_tag_busy(data.hctx); in blk_mq_alloc_request_hctx()
704 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in __blk_mq_free_request() local
712 __blk_mq_dec_active_requests(hctx); in __blk_mq_free_request()
715 blk_mq_put_tag(hctx->tags, ctx, rq->tag); in __blk_mq_free_request()
717 blk_mq_put_tag(hctx->sched_tags, ctx, sched_tag); in __blk_mq_free_request()
718 blk_mq_sched_restart(hctx); in __blk_mq_free_request()
1059 static inline void blk_mq_flush_tag_batch(struct blk_mq_hw_ctx *hctx, in blk_mq_flush_tag_batch() argument
1062 struct request_queue *q = hctx->queue; in blk_mq_flush_tag_batch()
1068 if (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) in blk_mq_flush_tag_batch()
1069 __blk_mq_sub_active_requests(hctx, nr_tags); in blk_mq_flush_tag_batch()
1071 blk_mq_put_tags(hctx->tags, tag_array, nr_tags); in blk_mq_flush_tag_batch()
1325 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_execute_rq_nowait() local
1343 blk_mq_run_hw_queue(hctx, hctx->flags & BLK_MQ_F_BLOCKING); in blk_execute_rq_nowait()
1391 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_execute_rq() local
1404 blk_mq_run_hw_queue(hctx, false); in blk_execute_rq()
1625 struct blk_mq_hw_ctx *hctx; in blk_mq_timeout_work() local
1668 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_timeout_work()
1670 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_timeout_work()
1671 blk_mq_tag_idle(hctx); in blk_mq_timeout_work()
1678 struct blk_mq_hw_ctx *hctx; member
1685 struct blk_mq_hw_ctx *hctx = flush_data->hctx; in flush_busy_ctx() local
1686 struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; in flush_busy_ctx()
1687 enum hctx_type type = hctx->type; in flush_busy_ctx()
1700 void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list) in blk_mq_flush_busy_ctxs() argument
1703 .hctx = hctx, in blk_mq_flush_busy_ctxs()
1707 sbitmap_for_each_set(&hctx->ctx_map, flush_busy_ctx, &data); in blk_mq_flush_busy_ctxs()
1712 struct blk_mq_hw_ctx *hctx; member
1720 struct blk_mq_hw_ctx *hctx = dispatch_data->hctx; in dispatch_rq_from_ctx() local
1721 struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; in dispatch_rq_from_ctx()
1722 enum hctx_type type = hctx->type; in dispatch_rq_from_ctx()
1736 struct request *blk_mq_dequeue_from_ctx(struct blk_mq_hw_ctx *hctx, in blk_mq_dequeue_from_ctx() argument
1739 unsigned off = start ? start->index_hw[hctx->type] : 0; in blk_mq_dequeue_from_ctx()
1741 .hctx = hctx, in blk_mq_dequeue_from_ctx()
1745 __sbitmap_for_each_set(&hctx->ctx_map, off, in blk_mq_dequeue_from_ctx()
1775 bool __blk_mq_get_driver_tag(struct blk_mq_hw_ctx *hctx, struct request *rq) in __blk_mq_get_driver_tag() argument
1780 if ((hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) && in __blk_mq_get_driver_tag()
1783 __blk_mq_inc_active_requests(hctx); in __blk_mq_get_driver_tag()
1785 hctx->tags->rqs[rq->tag] = rq; in __blk_mq_get_driver_tag()
1792 struct blk_mq_hw_ctx *hctx; in blk_mq_dispatch_wake() local
1794 hctx = container_of(wait, struct blk_mq_hw_ctx, dispatch_wait); in blk_mq_dispatch_wake()
1796 spin_lock(&hctx->dispatch_wait_lock); in blk_mq_dispatch_wake()
1801 sbq = &hctx->tags->bitmap_tags; in blk_mq_dispatch_wake()
1804 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_dispatch_wake()
1806 blk_mq_run_hw_queue(hctx, true); in blk_mq_dispatch_wake()
1816 static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx *hctx, in blk_mq_mark_tag_wait() argument
1824 if (!(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) && in blk_mq_mark_tag_wait()
1825 !(blk_mq_is_shared_tags(hctx->flags))) { in blk_mq_mark_tag_wait()
1826 blk_mq_sched_mark_restart_hctx(hctx); in blk_mq_mark_tag_wait()
1839 wait = &hctx->dispatch_wait; in blk_mq_mark_tag_wait()
1844 sbq = &hctx->tags->breserved_tags; in blk_mq_mark_tag_wait()
1846 sbq = &hctx->tags->bitmap_tags; in blk_mq_mark_tag_wait()
1847 wq = &bt_wait_ptr(sbq, hctx)->wait; in blk_mq_mark_tag_wait()
1850 spin_lock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1852 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1868 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1879 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1894 static void blk_mq_update_dispatch_busy(struct blk_mq_hw_ctx *hctx, bool busy) in blk_mq_update_dispatch_busy() argument
1898 ewma = hctx->dispatch_busy; in blk_mq_update_dispatch_busy()
1908 hctx->dispatch_busy = ewma; in blk_mq_update_dispatch_busy()
1942 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_prep_dispatch_rq() local
1962 if (!blk_mq_mark_tag_wait(hctx, rq)) { in blk_mq_prep_dispatch_rq()
1998 static void blk_mq_commit_rqs(struct blk_mq_hw_ctx *hctx, int queued, in blk_mq_commit_rqs() argument
2001 if (hctx->queue->mq_ops->commit_rqs && queued) { in blk_mq_commit_rqs()
2002 trace_block_unplug(hctx->queue, queued, !from_schedule); in blk_mq_commit_rqs()
2003 hctx->queue->mq_ops->commit_rqs(hctx); in blk_mq_commit_rqs()
2010 bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list, in blk_mq_dispatch_rq_list() argument
2014 struct request_queue *q = hctx->queue; in blk_mq_dispatch_rq_list()
2033 WARN_ON_ONCE(hctx != rq->mq_hctx); in blk_mq_dispatch_rq_list()
2049 ret = q->mq_ops->queue_rq(hctx, &bd); in blk_mq_dispatch_rq_list()
2081 blk_mq_commit_rqs(hctx, queued, false); in blk_mq_dispatch_rq_list()
2091 ((hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) || in blk_mq_dispatch_rq_list()
2092 blk_mq_is_shared_tags(hctx->flags)); in blk_mq_dispatch_rq_list()
2097 spin_lock(&hctx->lock); in blk_mq_dispatch_rq_list()
2098 list_splice_tail_init(list, &hctx->dispatch); in blk_mq_dispatch_rq_list()
2099 spin_unlock(&hctx->lock); in blk_mq_dispatch_rq_list()
2136 needs_restart = blk_mq_sched_needs_restart(hctx); in blk_mq_dispatch_rq_list()
2140 (no_tag && list_empty_careful(&hctx->dispatch_wait.entry))) in blk_mq_dispatch_rq_list()
2141 blk_mq_run_hw_queue(hctx, true); in blk_mq_dispatch_rq_list()
2143 blk_mq_delay_run_hw_queue(hctx, BLK_MQ_RESOURCE_DELAY); in blk_mq_dispatch_rq_list()
2145 blk_mq_update_dispatch_busy(hctx, true); in blk_mq_dispatch_rq_list()
2149 blk_mq_update_dispatch_busy(hctx, false); in blk_mq_dispatch_rq_list()
2153 static inline int blk_mq_first_mapped_cpu(struct blk_mq_hw_ctx *hctx) in blk_mq_first_mapped_cpu() argument
2155 int cpu = cpumask_first_and(hctx->cpumask, cpu_online_mask); in blk_mq_first_mapped_cpu()
2158 cpu = cpumask_first(hctx->cpumask); in blk_mq_first_mapped_cpu()
2168 static int blk_mq_hctx_next_cpu(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_next_cpu() argument
2171 int next_cpu = hctx->next_cpu; in blk_mq_hctx_next_cpu()
2173 if (hctx->queue->nr_hw_queues == 1) in blk_mq_hctx_next_cpu()
2176 if (--hctx->next_cpu_batch <= 0) { in blk_mq_hctx_next_cpu()
2178 next_cpu = cpumask_next_and(next_cpu, hctx->cpumask, in blk_mq_hctx_next_cpu()
2181 next_cpu = blk_mq_first_mapped_cpu(hctx); in blk_mq_hctx_next_cpu()
2182 hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH; in blk_mq_hctx_next_cpu()
2199 hctx->next_cpu = next_cpu; in blk_mq_hctx_next_cpu()
2200 hctx->next_cpu_batch = 1; in blk_mq_hctx_next_cpu()
2204 hctx->next_cpu = next_cpu; in blk_mq_hctx_next_cpu()
2215 void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs) in blk_mq_delay_run_hw_queue() argument
2217 if (unlikely(blk_mq_hctx_stopped(hctx))) in blk_mq_delay_run_hw_queue()
2219 kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work, in blk_mq_delay_run_hw_queue()
2233 void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) in blk_mq_run_hw_queue() argument
2242 might_sleep_if(!async && hctx->flags & BLK_MQ_F_BLOCKING); in blk_mq_run_hw_queue()
2252 __blk_mq_run_dispatch_ops(hctx->queue, false, in blk_mq_run_hw_queue()
2253 need_run = !blk_queue_quiesced(hctx->queue) && in blk_mq_run_hw_queue()
2254 blk_mq_hctx_has_pending(hctx)); in blk_mq_run_hw_queue()
2259 if (async || !cpumask_test_cpu(raw_smp_processor_id(), hctx->cpumask)) { in blk_mq_run_hw_queue()
2260 blk_mq_delay_run_hw_queue(hctx, 0); in blk_mq_run_hw_queue()
2264 blk_mq_run_dispatch_ops(hctx->queue, in blk_mq_run_hw_queue()
2265 blk_mq_sched_dispatch_requests(hctx)); in blk_mq_run_hw_queue()
2283 struct blk_mq_hw_ctx *hctx = ctx->hctxs[HCTX_TYPE_DEFAULT]; in blk_mq_get_sq_hctx() local
2285 if (!blk_mq_hctx_stopped(hctx)) in blk_mq_get_sq_hctx()
2286 return hctx; in blk_mq_get_sq_hctx()
2297 struct blk_mq_hw_ctx *hctx, *sq_hctx; in blk_mq_run_hw_queues() local
2303 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_run_hw_queues()
2304 if (blk_mq_hctx_stopped(hctx)) in blk_mq_run_hw_queues()
2311 if (!sq_hctx || sq_hctx == hctx || in blk_mq_run_hw_queues()
2312 !list_empty_careful(&hctx->dispatch)) in blk_mq_run_hw_queues()
2313 blk_mq_run_hw_queue(hctx, async); in blk_mq_run_hw_queues()
2325 struct blk_mq_hw_ctx *hctx, *sq_hctx; in blk_mq_delay_run_hw_queues() local
2331 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_delay_run_hw_queues()
2332 if (blk_mq_hctx_stopped(hctx)) in blk_mq_delay_run_hw_queues()
2340 if (delayed_work_pending(&hctx->run_work)) in blk_mq_delay_run_hw_queues()
2347 if (!sq_hctx || sq_hctx == hctx || in blk_mq_delay_run_hw_queues()
2348 !list_empty_careful(&hctx->dispatch)) in blk_mq_delay_run_hw_queues()
2349 blk_mq_delay_run_hw_queue(hctx, msecs); in blk_mq_delay_run_hw_queues()
2363 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx) in blk_mq_stop_hw_queue() argument
2365 cancel_delayed_work(&hctx->run_work); in blk_mq_stop_hw_queue()
2367 set_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_stop_hw_queue()
2382 struct blk_mq_hw_ctx *hctx; in blk_mq_stop_hw_queues() local
2385 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_stop_hw_queues()
2386 blk_mq_stop_hw_queue(hctx); in blk_mq_stop_hw_queues()
2390 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx) in blk_mq_start_hw_queue() argument
2392 clear_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_start_hw_queue()
2394 blk_mq_run_hw_queue(hctx, hctx->flags & BLK_MQ_F_BLOCKING); in blk_mq_start_hw_queue()
2400 struct blk_mq_hw_ctx *hctx; in blk_mq_start_hw_queues() local
2403 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_start_hw_queues()
2404 blk_mq_start_hw_queue(hctx); in blk_mq_start_hw_queues()
2408 void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) in blk_mq_start_stopped_hw_queue() argument
2410 if (!blk_mq_hctx_stopped(hctx)) in blk_mq_start_stopped_hw_queue()
2413 clear_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_start_stopped_hw_queue()
2414 blk_mq_run_hw_queue(hctx, async); in blk_mq_start_stopped_hw_queue()
2420 struct blk_mq_hw_ctx *hctx; in blk_mq_start_stopped_hw_queues() local
2423 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_start_stopped_hw_queues()
2424 blk_mq_start_stopped_hw_queue(hctx, async || in blk_mq_start_stopped_hw_queues()
2425 (hctx->flags & BLK_MQ_F_BLOCKING)); in blk_mq_start_stopped_hw_queues()
2431 struct blk_mq_hw_ctx *hctx = in blk_mq_run_work_fn() local
2434 blk_mq_run_dispatch_ops(hctx->queue, in blk_mq_run_work_fn()
2435 blk_mq_sched_dispatch_requests(hctx)); in blk_mq_run_work_fn()
2448 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_request_bypass_insert() local
2450 spin_lock(&hctx->lock); in blk_mq_request_bypass_insert()
2452 list_add(&rq->queuelist, &hctx->dispatch); in blk_mq_request_bypass_insert()
2454 list_add_tail(&rq->queuelist, &hctx->dispatch); in blk_mq_request_bypass_insert()
2455 spin_unlock(&hctx->lock); in blk_mq_request_bypass_insert()
2458 static void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, in blk_mq_insert_requests() argument
2463 enum hctx_type type = hctx->type; in blk_mq_insert_requests()
2469 if (!hctx->dispatch_busy && !run_queue_async) { in blk_mq_insert_requests()
2470 blk_mq_run_dispatch_ops(hctx->queue, in blk_mq_insert_requests()
2471 blk_mq_try_issue_list_directly(hctx, list)); in blk_mq_insert_requests()
2489 blk_mq_hctx_mark_pending(hctx, ctx); in blk_mq_insert_requests()
2492 blk_mq_run_hw_queue(hctx, run_queue_async); in blk_mq_insert_requests()
2499 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_insert_request() local
2542 q->elevator->type->ops.insert_requests(hctx, &list, flags); in blk_mq_insert_request()
2548 list_add(&rq->queuelist, &ctx->rq_lists[hctx->type]); in blk_mq_insert_request()
2551 &ctx->rq_lists[hctx->type]); in blk_mq_insert_request()
2552 blk_mq_hctx_mark_pending(hctx, ctx); in blk_mq_insert_request()
2575 static blk_status_t __blk_mq_issue_directly(struct blk_mq_hw_ctx *hctx, in __blk_mq_issue_directly() argument
2590 ret = q->mq_ops->queue_rq(hctx, &bd); in __blk_mq_issue_directly()
2593 blk_mq_update_dispatch_busy(hctx, false); in __blk_mq_issue_directly()
2597 blk_mq_update_dispatch_busy(hctx, true); in __blk_mq_issue_directly()
2601 blk_mq_update_dispatch_busy(hctx, false); in __blk_mq_issue_directly()
2633 static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx, in blk_mq_try_issue_directly() argument
2638 if (blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(rq->q)) { in blk_mq_try_issue_directly()
2645 blk_mq_run_hw_queue(hctx, rq->cmd_flags & REQ_NOWAIT); in blk_mq_try_issue_directly()
2649 ret = __blk_mq_issue_directly(hctx, rq, true); in blk_mq_try_issue_directly()
2656 blk_mq_run_hw_queue(hctx, false); in blk_mq_try_issue_directly()
2666 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_request_issue_directly() local
2668 if (blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(rq->q)) { in blk_mq_request_issue_directly()
2675 return __blk_mq_issue_directly(hctx, rq, last); in blk_mq_request_issue_directly()
2680 struct blk_mq_hw_ctx *hctx = NULL; in blk_mq_plug_issue_direct() local
2688 if (hctx != rq->mq_hctx) { in blk_mq_plug_issue_direct()
2689 if (hctx) { in blk_mq_plug_issue_direct()
2690 blk_mq_commit_rqs(hctx, queued, false); in blk_mq_plug_issue_direct()
2693 hctx = rq->mq_hctx; in blk_mq_plug_issue_direct()
2704 blk_mq_run_hw_queue(hctx, false); in blk_mq_plug_issue_direct()
2714 blk_mq_commit_rqs(hctx, queued, false); in blk_mq_plug_issue_direct()
2821 static void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx, in blk_mq_try_issue_list_directly() argument
2841 blk_mq_run_hw_queue(hctx, false); in blk_mq_try_issue_list_directly()
2851 blk_mq_commit_rqs(hctx, queued, false); in blk_mq_try_issue_list_directly()
2968 struct blk_mq_hw_ctx *hctx; in blk_mq_submit_bio() local
3016 hctx = rq->mq_hctx; in blk_mq_submit_bio()
3018 (hctx->dispatch_busy && (q->nr_hw_queues == 1 || !is_sync))) { in blk_mq_submit_bio()
3020 blk_mq_run_hw_queue(hctx, true); in blk_mq_submit_bio()
3022 blk_mq_run_dispatch_ops(q, blk_mq_try_issue_directly(hctx, rq)); in blk_mq_submit_bio()
3453 struct blk_mq_hw_ctx *hctx; member
3461 if (rq->mq_hctx != iter_data->hctx) in blk_mq_has_request()
3467 static bool blk_mq_hctx_has_requests(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_has_requests() argument
3469 struct blk_mq_tags *tags = hctx->sched_tags ? in blk_mq_hctx_has_requests()
3470 hctx->sched_tags : hctx->tags; in blk_mq_hctx_has_requests()
3472 .hctx = hctx, in blk_mq_hctx_has_requests()
3480 struct blk_mq_hw_ctx *hctx) in blk_mq_last_cpu_in_hctx() argument
3482 if (cpumask_first_and(hctx->cpumask, cpu_online_mask) != cpu) in blk_mq_last_cpu_in_hctx()
3484 if (cpumask_next_and(cpu, hctx->cpumask, cpu_online_mask) < nr_cpu_ids) in blk_mq_last_cpu_in_hctx()
3491 struct blk_mq_hw_ctx *hctx = hlist_entry_safe(node, in blk_mq_hctx_notify_offline() local
3494 if (!cpumask_test_cpu(cpu, hctx->cpumask) || in blk_mq_hctx_notify_offline()
3495 !blk_mq_last_cpu_in_hctx(cpu, hctx)) in blk_mq_hctx_notify_offline()
3505 set_bit(BLK_MQ_S_INACTIVE, &hctx->state); in blk_mq_hctx_notify_offline()
3513 if (percpu_ref_tryget(&hctx->queue->q_usage_counter)) { in blk_mq_hctx_notify_offline()
3514 while (blk_mq_hctx_has_requests(hctx)) in blk_mq_hctx_notify_offline()
3516 percpu_ref_put(&hctx->queue->q_usage_counter); in blk_mq_hctx_notify_offline()
3524 struct blk_mq_hw_ctx *hctx = hlist_entry_safe(node, in blk_mq_hctx_notify_online() local
3527 if (cpumask_test_cpu(cpu, hctx->cpumask)) in blk_mq_hctx_notify_online()
3528 clear_bit(BLK_MQ_S_INACTIVE, &hctx->state); in blk_mq_hctx_notify_online()
3539 struct blk_mq_hw_ctx *hctx; in blk_mq_hctx_notify_dead() local
3544 hctx = hlist_entry_safe(node, struct blk_mq_hw_ctx, cpuhp_dead); in blk_mq_hctx_notify_dead()
3545 if (!cpumask_test_cpu(cpu, hctx->cpumask)) in blk_mq_hctx_notify_dead()
3548 ctx = __blk_mq_get_ctx(hctx->queue, cpu); in blk_mq_hctx_notify_dead()
3549 type = hctx->type; in blk_mq_hctx_notify_dead()
3554 blk_mq_hctx_clear_pending(hctx, ctx); in blk_mq_hctx_notify_dead()
3561 spin_lock(&hctx->lock); in blk_mq_hctx_notify_dead()
3562 list_splice_tail_init(&tmp, &hctx->dispatch); in blk_mq_hctx_notify_dead()
3563 spin_unlock(&hctx->lock); in blk_mq_hctx_notify_dead()
3565 blk_mq_run_hw_queue(hctx, true); in blk_mq_hctx_notify_dead()
3569 static void blk_mq_remove_cpuhp(struct blk_mq_hw_ctx *hctx) in blk_mq_remove_cpuhp() argument
3571 if (!(hctx->flags & BLK_MQ_F_STACKING)) in blk_mq_remove_cpuhp()
3573 &hctx->cpuhp_online); in blk_mq_remove_cpuhp()
3575 &hctx->cpuhp_dead); in blk_mq_remove_cpuhp()
3610 struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx) in blk_mq_exit_hctx() argument
3612 struct request *flush_rq = hctx->fq->flush_rq; in blk_mq_exit_hctx()
3614 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_exit_hctx()
3615 blk_mq_tag_idle(hctx); in blk_mq_exit_hctx()
3624 set->ops->exit_hctx(hctx, hctx_idx); in blk_mq_exit_hctx()
3626 blk_mq_remove_cpuhp(hctx); in blk_mq_exit_hctx()
3631 list_add(&hctx->hctx_list, &q->unused_hctx_list); in blk_mq_exit_hctx()
3638 struct blk_mq_hw_ctx *hctx; in blk_mq_exit_hw_queues() local
3641 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_exit_hw_queues()
3644 blk_mq_exit_hctx(q, set, hctx, i); in blk_mq_exit_hw_queues()
3650 struct blk_mq_hw_ctx *hctx, unsigned hctx_idx) in blk_mq_init_hctx() argument
3652 hctx->queue_num = hctx_idx; in blk_mq_init_hctx()
3654 if (!(hctx->flags & BLK_MQ_F_STACKING)) in blk_mq_init_hctx()
3656 &hctx->cpuhp_online); in blk_mq_init_hctx()
3657 cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead); in blk_mq_init_hctx()
3659 hctx->tags = set->tags[hctx_idx]; in blk_mq_init_hctx()
3662 set->ops->init_hctx(hctx, set->driver_data, hctx_idx)) in blk_mq_init_hctx()
3665 if (blk_mq_init_request(set, hctx->fq->flush_rq, hctx_idx, in blk_mq_init_hctx()
3666 hctx->numa_node)) in blk_mq_init_hctx()
3669 if (xa_insert(&q->hctx_table, hctx_idx, hctx, GFP_KERNEL)) in blk_mq_init_hctx()
3676 set->ops->exit_request(set, hctx->fq->flush_rq, hctx_idx); in blk_mq_init_hctx()
3679 set->ops->exit_hctx(hctx, hctx_idx); in blk_mq_init_hctx()
3681 blk_mq_remove_cpuhp(hctx); in blk_mq_init_hctx()
3689 struct blk_mq_hw_ctx *hctx; in blk_mq_alloc_hctx() local
3692 hctx = kzalloc_node(sizeof(struct blk_mq_hw_ctx), gfp, node); in blk_mq_alloc_hctx()
3693 if (!hctx) in blk_mq_alloc_hctx()
3696 if (!zalloc_cpumask_var_node(&hctx->cpumask, gfp, node)) in blk_mq_alloc_hctx()
3699 atomic_set(&hctx->nr_active, 0); in blk_mq_alloc_hctx()
3702 hctx->numa_node = node; in blk_mq_alloc_hctx()
3704 INIT_DELAYED_WORK(&hctx->run_work, blk_mq_run_work_fn); in blk_mq_alloc_hctx()
3705 spin_lock_init(&hctx->lock); in blk_mq_alloc_hctx()
3706 INIT_LIST_HEAD(&hctx->dispatch); in blk_mq_alloc_hctx()
3707 hctx->queue = q; in blk_mq_alloc_hctx()
3708 hctx->flags = set->flags & ~BLK_MQ_F_TAG_QUEUE_SHARED; in blk_mq_alloc_hctx()
3710 INIT_LIST_HEAD(&hctx->hctx_list); in blk_mq_alloc_hctx()
3716 hctx->ctxs = kmalloc_array_node(nr_cpu_ids, sizeof(void *), in blk_mq_alloc_hctx()
3718 if (!hctx->ctxs) in blk_mq_alloc_hctx()
3721 if (sbitmap_init_node(&hctx->ctx_map, nr_cpu_ids, ilog2(8), in blk_mq_alloc_hctx()
3724 hctx->nr_ctx = 0; in blk_mq_alloc_hctx()
3726 spin_lock_init(&hctx->dispatch_wait_lock); in blk_mq_alloc_hctx()
3727 init_waitqueue_func_entry(&hctx->dispatch_wait, blk_mq_dispatch_wake); in blk_mq_alloc_hctx()
3728 INIT_LIST_HEAD(&hctx->dispatch_wait.entry); in blk_mq_alloc_hctx()
3730 hctx->fq = blk_alloc_flush_queue(hctx->numa_node, set->cmd_size, gfp); in blk_mq_alloc_hctx()
3731 if (!hctx->fq) in blk_mq_alloc_hctx()
3734 blk_mq_hctx_kobj_init(hctx); in blk_mq_alloc_hctx()
3736 return hctx; in blk_mq_alloc_hctx()
3739 sbitmap_free(&hctx->ctx_map); in blk_mq_alloc_hctx()
3741 kfree(hctx->ctxs); in blk_mq_alloc_hctx()
3743 free_cpumask_var(hctx->cpumask); in blk_mq_alloc_hctx()
3745 kfree(hctx); in blk_mq_alloc_hctx()
3758 struct blk_mq_hw_ctx *hctx; in blk_mq_init_cpu_queues() local
3773 hctx = blk_mq_map_queue_type(q, j, i); in blk_mq_init_cpu_queues()
3774 if (nr_hw_queues > 1 && hctx->numa_node == NUMA_NO_NODE) in blk_mq_init_cpu_queues()
3775 hctx->numa_node = cpu_to_node(i); in blk_mq_init_cpu_queues()
3838 struct blk_mq_hw_ctx *hctx; in blk_mq_map_swqueue() local
3842 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_map_swqueue()
3843 cpumask_clear(hctx->cpumask); in blk_mq_map_swqueue()
3844 hctx->nr_ctx = 0; in blk_mq_map_swqueue()
3845 hctx->dispatch_from = NULL; in blk_mq_map_swqueue()
3875 hctx = blk_mq_map_queue_type(q, j, i); in blk_mq_map_swqueue()
3876 ctx->hctxs[j] = hctx; in blk_mq_map_swqueue()
3882 if (cpumask_test_cpu(i, hctx->cpumask)) in blk_mq_map_swqueue()
3885 cpumask_set_cpu(i, hctx->cpumask); in blk_mq_map_swqueue()
3886 hctx->type = j; in blk_mq_map_swqueue()
3887 ctx->index_hw[hctx->type] = hctx->nr_ctx; in blk_mq_map_swqueue()
3888 hctx->ctxs[hctx->nr_ctx++] = ctx; in blk_mq_map_swqueue()
3894 BUG_ON(!hctx->nr_ctx); in blk_mq_map_swqueue()
3902 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_map_swqueue()
3907 if (!hctx->nr_ctx) { in blk_mq_map_swqueue()
3915 hctx->tags = NULL; in blk_mq_map_swqueue()
3919 hctx->tags = set->tags[i]; in blk_mq_map_swqueue()
3920 WARN_ON(!hctx->tags); in blk_mq_map_swqueue()
3927 sbitmap_resize(&hctx->ctx_map, hctx->nr_ctx); in blk_mq_map_swqueue()
3932 hctx->next_cpu = blk_mq_first_mapped_cpu(hctx); in blk_mq_map_swqueue()
3933 hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH; in blk_mq_map_swqueue()
3943 struct blk_mq_hw_ctx *hctx; in queue_set_hctx_shared() local
3946 queue_for_each_hw_ctx(q, hctx, i) { in queue_set_hctx_shared()
3948 hctx->flags |= BLK_MQ_F_TAG_QUEUE_SHARED; in queue_set_hctx_shared()
3950 blk_mq_tag_idle(hctx); in queue_set_hctx_shared()
3951 hctx->flags &= ~BLK_MQ_F_TAG_QUEUE_SHARED; in queue_set_hctx_shared()
4043 struct blk_mq_hw_ctx *hctx, *next; in blk_mq_release() local
4046 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_release()
4047 WARN_ON_ONCE(hctx && list_empty(&hctx->hctx_list)); in blk_mq_release()
4050 list_for_each_entry_safe(hctx, next, &q->unused_hctx_list, hctx_list) { in blk_mq_release()
4051 list_del_init(&hctx->hctx_list); in blk_mq_release()
4052 kobject_put(&hctx->kobj); in blk_mq_release()
4154 struct blk_mq_hw_ctx *hctx = NULL, *tmp; in blk_mq_alloc_and_init_hctx() local
4160 hctx = tmp; in blk_mq_alloc_and_init_hctx()
4164 if (hctx) in blk_mq_alloc_and_init_hctx()
4165 list_del_init(&hctx->hctx_list); in blk_mq_alloc_and_init_hctx()
4168 if (!hctx) in blk_mq_alloc_and_init_hctx()
4169 hctx = blk_mq_alloc_hctx(q, set, node); in blk_mq_alloc_and_init_hctx()
4170 if (!hctx) in blk_mq_alloc_and_init_hctx()
4173 if (blk_mq_init_hctx(q, set, hctx, hctx_idx)) in blk_mq_alloc_and_init_hctx()
4176 return hctx; in blk_mq_alloc_and_init_hctx()
4179 kobject_put(&hctx->kobj); in blk_mq_alloc_and_init_hctx()
4187 struct blk_mq_hw_ctx *hctx; in blk_mq_realloc_hw_ctxs() local
4207 hctx = blk_mq_alloc_and_init_hctx(set, q, i, old_node); in blk_mq_realloc_hw_ctxs()
4208 WARN_ON_ONCE(!hctx); in blk_mq_realloc_hw_ctxs()
4222 xa_for_each_start(&q->hctx_table, j, hctx, j) in blk_mq_realloc_hw_ctxs()
4223 blk_mq_exit_hctx(q, set, hctx, j); in blk_mq_realloc_hw_ctxs()
4587 struct blk_mq_hw_ctx *hctx; in blk_mq_update_nr_requests() local
4601 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_update_nr_requests()
4602 if (!hctx->tags) in blk_mq_update_nr_requests()
4608 if (hctx->sched_tags) { in blk_mq_update_nr_requests()
4609 ret = blk_mq_tag_update_depth(hctx, &hctx->sched_tags, in blk_mq_update_nr_requests()
4612 ret = blk_mq_tag_update_depth(hctx, &hctx->tags, nr, in blk_mq_update_nr_requests()
4618 q->elevator->type->ops.depth_updated(hctx); in blk_mq_update_nr_requests()
4795 static int blk_hctx_poll(struct request_queue *q, struct blk_mq_hw_ctx *hctx, in blk_hctx_poll() argument
4802 ret = q->mq_ops->poll(hctx, iob); in blk_hctx_poll()
4825 struct blk_mq_hw_ctx *hctx = xa_load(&q->hctx_table, cookie); in blk_mq_poll() local
4827 return blk_hctx_poll(q, hctx, iob, flags); in blk_mq_poll()
4856 struct blk_mq_hw_ctx *hctx; in blk_mq_cancel_work_sync() local
4861 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_cancel_work_sync()
4862 cancel_delayed_work_sync(&hctx->run_work); in blk_mq_cancel_work_sync()