Lines Matching refs:hctx
72 static bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_has_pending() argument
74 return !list_empty_careful(&hctx->dispatch) || in blk_mq_hctx_has_pending()
75 sbitmap_any_bit_set(&hctx->ctx_map) || in blk_mq_hctx_has_pending()
76 blk_mq_sched_has_work(hctx); in blk_mq_hctx_has_pending()
82 static void blk_mq_hctx_mark_pending(struct blk_mq_hw_ctx *hctx, in blk_mq_hctx_mark_pending() argument
85 const int bit = ctx->index_hw[hctx->type]; in blk_mq_hctx_mark_pending()
87 if (!sbitmap_test_bit(&hctx->ctx_map, bit)) in blk_mq_hctx_mark_pending()
88 sbitmap_set_bit(&hctx->ctx_map, bit); in blk_mq_hctx_mark_pending()
91 static void blk_mq_hctx_clear_pending(struct blk_mq_hw_ctx *hctx, in blk_mq_hctx_clear_pending() argument
94 const int bit = ctx->index_hw[hctx->type]; in blk_mq_hctx_clear_pending()
96 sbitmap_clear_bit(&hctx->ctx_map, bit); in blk_mq_hctx_clear_pending()
104 static bool blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx, in blk_mq_check_inflight() argument
226 struct blk_mq_hw_ctx *hctx; in blk_mq_quiesce_queue() local
232 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_quiesce_queue()
233 if (hctx->flags & BLK_MQ_F_BLOCKING) in blk_mq_quiesce_queue()
234 synchronize_srcu(hctx->srcu); in blk_mq_quiesce_queue()
261 struct blk_mq_hw_ctx *hctx; in blk_mq_wake_waiters() local
264 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_wake_waiters()
265 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_wake_waiters()
266 blk_mq_tag_wakeup_all(hctx->tags, true); in blk_mq_wake_waiters()
295 rq->mq_hctx = data->hctx; in blk_mq_rq_ctx_init()
345 data->hctx->queued++; in blk_mq_rq_ctx_init()
378 data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx); in __blk_mq_alloc_request()
380 blk_mq_tag_busy(data->hctx); in __blk_mq_alloc_request()
469 data.hctx = q->queue_hw_ctx[hctx_idx]; in blk_mq_alloc_request_hctx()
470 if (!blk_mq_hw_queue_mapped(data.hctx)) in blk_mq_alloc_request_hctx()
472 cpu = cpumask_first_and(data.hctx->cpumask, cpu_online_mask); in blk_mq_alloc_request_hctx()
478 blk_mq_tag_busy(data.hctx); in blk_mq_alloc_request_hctx()
496 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in __blk_mq_free_request() local
503 blk_mq_put_tag(hctx->tags, ctx, rq->tag); in __blk_mq_free_request()
505 blk_mq_put_tag(hctx->sched_tags, ctx, sched_tag); in __blk_mq_free_request()
506 blk_mq_sched_restart(hctx); in __blk_mq_free_request()
515 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_free_request() local
528 __blk_mq_dec_active_requests(hctx); in blk_mq_free_request()
708 static void hctx_unlock(struct blk_mq_hw_ctx *hctx, int srcu_idx) in hctx_unlock() argument
709 __releases(hctx->srcu) in hctx_unlock()
711 if (!(hctx->flags & BLK_MQ_F_BLOCKING)) in hctx_unlock()
714 srcu_read_unlock(hctx->srcu, srcu_idx); in hctx_unlock()
717 static void hctx_lock(struct blk_mq_hw_ctx *hctx, int *srcu_idx) in hctx_lock() argument
718 __acquires(hctx->srcu) in hctx_lock()
720 if (!(hctx->flags & BLK_MQ_F_BLOCKING)) { in hctx_lock()
725 *srcu_idx = srcu_read_lock(hctx->srcu); in hctx_lock()
874 static bool blk_mq_rq_inflight(struct blk_mq_hw_ctx *hctx, struct request *rq, in blk_mq_rq_inflight() argument
881 if (blk_mq_request_started(rq) && rq->q == hctx->queue) { in blk_mq_rq_inflight()
943 static bool blk_mq_check_expired(struct blk_mq_hw_ctx *hctx, in blk_mq_check_expired() argument
965 struct blk_mq_hw_ctx *hctx; in blk_mq_timeout_work() local
995 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_timeout_work()
997 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_timeout_work()
998 blk_mq_tag_idle(hctx); in blk_mq_timeout_work()
1005 struct blk_mq_hw_ctx *hctx; member
1012 struct blk_mq_hw_ctx *hctx = flush_data->hctx; in flush_busy_ctx() local
1013 struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; in flush_busy_ctx()
1014 enum hctx_type type = hctx->type; in flush_busy_ctx()
1027 void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list) in blk_mq_flush_busy_ctxs() argument
1030 .hctx = hctx, in blk_mq_flush_busy_ctxs()
1034 sbitmap_for_each_set(&hctx->ctx_map, flush_busy_ctx, &data); in blk_mq_flush_busy_ctxs()
1039 struct blk_mq_hw_ctx *hctx; member
1047 struct blk_mq_hw_ctx *hctx = dispatch_data->hctx; in dispatch_rq_from_ctx() local
1048 struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; in dispatch_rq_from_ctx()
1049 enum hctx_type type = hctx->type; in dispatch_rq_from_ctx()
1063 struct request *blk_mq_dequeue_from_ctx(struct blk_mq_hw_ctx *hctx, in blk_mq_dequeue_from_ctx() argument
1066 unsigned off = start ? start->index_hw[hctx->type] : 0; in blk_mq_dequeue_from_ctx()
1068 .hctx = hctx, in blk_mq_dequeue_from_ctx()
1072 __sbitmap_for_each_set(&hctx->ctx_map, off, in blk_mq_dequeue_from_ctx()
1112 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_get_driver_tag() local
1117 if ((hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) && in blk_mq_get_driver_tag()
1120 __blk_mq_inc_active_requests(hctx); in blk_mq_get_driver_tag()
1122 hctx->tags->rqs[rq->tag] = rq; in blk_mq_get_driver_tag()
1129 struct blk_mq_hw_ctx *hctx; in blk_mq_dispatch_wake() local
1131 hctx = container_of(wait, struct blk_mq_hw_ctx, dispatch_wait); in blk_mq_dispatch_wake()
1133 spin_lock(&hctx->dispatch_wait_lock); in blk_mq_dispatch_wake()
1138 sbq = hctx->tags->bitmap_tags; in blk_mq_dispatch_wake()
1141 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_dispatch_wake()
1143 blk_mq_run_hw_queue(hctx, true); in blk_mq_dispatch_wake()
1153 static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx *hctx, in blk_mq_mark_tag_wait() argument
1156 struct sbitmap_queue *sbq = hctx->tags->bitmap_tags; in blk_mq_mark_tag_wait()
1161 if (!(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)) { in blk_mq_mark_tag_wait()
1162 blk_mq_sched_mark_restart_hctx(hctx); in blk_mq_mark_tag_wait()
1175 wait = &hctx->dispatch_wait; in blk_mq_mark_tag_wait()
1179 wq = &bt_wait_ptr(sbq, hctx)->wait; in blk_mq_mark_tag_wait()
1182 spin_lock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1184 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1200 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1211 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1226 static void blk_mq_update_dispatch_busy(struct blk_mq_hw_ctx *hctx, bool busy) in blk_mq_update_dispatch_busy() argument
1230 ewma = hctx->dispatch_busy; in blk_mq_update_dispatch_busy()
1240 hctx->dispatch_busy = ewma; in blk_mq_update_dispatch_busy()
1284 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_prep_dispatch_rq() local
1299 if (!blk_mq_mark_tag_wait(hctx, rq)) { in blk_mq_prep_dispatch_rq()
1326 bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list, in blk_mq_dispatch_rq_list() argument
1330 struct request_queue *q = hctx->queue; in blk_mq_dispatch_rq_list()
1349 WARN_ON_ONCE(hctx != rq->mq_hctx); in blk_mq_dispatch_rq_list()
1375 ret = q->mq_ops->queue_rq(hctx, &bd); in blk_mq_dispatch_rq_list()
1404 hctx->dispatched[queued_to_index(queued)]++; in blk_mq_dispatch_rq_list()
1411 q->mq_ops->commit_rqs(hctx); in blk_mq_dispatch_rq_list()
1420 (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED); in blk_mq_dispatch_rq_list()
1424 spin_lock(&hctx->lock); in blk_mq_dispatch_rq_list()
1425 list_splice_tail_init(list, &hctx->dispatch); in blk_mq_dispatch_rq_list()
1426 spin_unlock(&hctx->lock); in blk_mq_dispatch_rq_list()
1463 needs_restart = blk_mq_sched_needs_restart(hctx); in blk_mq_dispatch_rq_list()
1467 (no_tag && list_empty_careful(&hctx->dispatch_wait.entry))) in blk_mq_dispatch_rq_list()
1468 blk_mq_run_hw_queue(hctx, true); in blk_mq_dispatch_rq_list()
1470 blk_mq_delay_run_hw_queue(hctx, BLK_MQ_RESOURCE_DELAY); in blk_mq_dispatch_rq_list()
1472 blk_mq_update_dispatch_busy(hctx, true); in blk_mq_dispatch_rq_list()
1475 blk_mq_update_dispatch_busy(hctx, false); in blk_mq_dispatch_rq_list()
1486 static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx) in __blk_mq_run_hw_queue() argument
1507 if (!cpumask_test_cpu(raw_smp_processor_id(), hctx->cpumask) && in __blk_mq_run_hw_queue()
1508 cpu_online(hctx->next_cpu)) { in __blk_mq_run_hw_queue()
1511 cpumask_empty(hctx->cpumask) ? "inactive": "active"); in __blk_mq_run_hw_queue()
1521 might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING); in __blk_mq_run_hw_queue()
1523 hctx_lock(hctx, &srcu_idx); in __blk_mq_run_hw_queue()
1524 blk_mq_sched_dispatch_requests(hctx); in __blk_mq_run_hw_queue()
1525 hctx_unlock(hctx, srcu_idx); in __blk_mq_run_hw_queue()
1528 static inline int blk_mq_first_mapped_cpu(struct blk_mq_hw_ctx *hctx) in blk_mq_first_mapped_cpu() argument
1530 int cpu = cpumask_first_and(hctx->cpumask, cpu_online_mask); in blk_mq_first_mapped_cpu()
1533 cpu = cpumask_first(hctx->cpumask); in blk_mq_first_mapped_cpu()
1543 static int blk_mq_hctx_next_cpu(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_next_cpu() argument
1546 int next_cpu = hctx->next_cpu; in blk_mq_hctx_next_cpu()
1548 if (hctx->queue->nr_hw_queues == 1) in blk_mq_hctx_next_cpu()
1551 if (--hctx->next_cpu_batch <= 0) { in blk_mq_hctx_next_cpu()
1553 next_cpu = cpumask_next_and(next_cpu, hctx->cpumask, in blk_mq_hctx_next_cpu()
1556 next_cpu = blk_mq_first_mapped_cpu(hctx); in blk_mq_hctx_next_cpu()
1557 hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH; in blk_mq_hctx_next_cpu()
1574 hctx->next_cpu = next_cpu; in blk_mq_hctx_next_cpu()
1575 hctx->next_cpu_batch = 1; in blk_mq_hctx_next_cpu()
1579 hctx->next_cpu = next_cpu; in blk_mq_hctx_next_cpu()
1592 static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async, in __blk_mq_delay_run_hw_queue() argument
1595 if (unlikely(blk_mq_hctx_stopped(hctx))) in __blk_mq_delay_run_hw_queue()
1598 if (!async && !(hctx->flags & BLK_MQ_F_BLOCKING)) { in __blk_mq_delay_run_hw_queue()
1600 if (cpumask_test_cpu(cpu, hctx->cpumask)) { in __blk_mq_delay_run_hw_queue()
1601 __blk_mq_run_hw_queue(hctx); in __blk_mq_delay_run_hw_queue()
1609 kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work, in __blk_mq_delay_run_hw_queue()
1620 void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs) in blk_mq_delay_run_hw_queue() argument
1622 __blk_mq_delay_run_hw_queue(hctx, true, msecs); in blk_mq_delay_run_hw_queue()
1635 void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) in blk_mq_run_hw_queue() argument
1648 hctx_lock(hctx, &srcu_idx); in blk_mq_run_hw_queue()
1649 need_run = !blk_queue_quiesced(hctx->queue) && in blk_mq_run_hw_queue()
1650 blk_mq_hctx_has_pending(hctx); in blk_mq_run_hw_queue()
1651 hctx_unlock(hctx, srcu_idx); in blk_mq_run_hw_queue()
1654 __blk_mq_delay_run_hw_queue(hctx, async, 0); in blk_mq_run_hw_queue()
1686 struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, 0, ctx); in blk_mq_get_sq_hctx() local
1688 if (!blk_mq_hctx_stopped(hctx)) in blk_mq_get_sq_hctx()
1689 return hctx; in blk_mq_get_sq_hctx()
1700 struct blk_mq_hw_ctx *hctx, *sq_hctx; in blk_mq_run_hw_queues() local
1706 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_run_hw_queues()
1707 if (blk_mq_hctx_stopped(hctx)) in blk_mq_run_hw_queues()
1714 if (!sq_hctx || sq_hctx == hctx || in blk_mq_run_hw_queues()
1715 !list_empty_careful(&hctx->dispatch)) in blk_mq_run_hw_queues()
1716 blk_mq_run_hw_queue(hctx, async); in blk_mq_run_hw_queues()
1728 struct blk_mq_hw_ctx *hctx, *sq_hctx; in blk_mq_delay_run_hw_queues() local
1734 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_delay_run_hw_queues()
1735 if (blk_mq_hctx_stopped(hctx)) in blk_mq_delay_run_hw_queues()
1742 if (!sq_hctx || sq_hctx == hctx || in blk_mq_delay_run_hw_queues()
1743 !list_empty_careful(&hctx->dispatch)) in blk_mq_delay_run_hw_queues()
1744 blk_mq_delay_run_hw_queue(hctx, msecs); in blk_mq_delay_run_hw_queues()
1758 struct blk_mq_hw_ctx *hctx; in blk_mq_queue_stopped() local
1761 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_queue_stopped()
1762 if (blk_mq_hctx_stopped(hctx)) in blk_mq_queue_stopped()
1778 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx) in blk_mq_stop_hw_queue() argument
1780 cancel_delayed_work(&hctx->run_work); in blk_mq_stop_hw_queue()
1782 set_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_stop_hw_queue()
1797 struct blk_mq_hw_ctx *hctx; in blk_mq_stop_hw_queues() local
1800 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_stop_hw_queues()
1801 blk_mq_stop_hw_queue(hctx); in blk_mq_stop_hw_queues()
1805 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx) in blk_mq_start_hw_queue() argument
1807 clear_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_start_hw_queue()
1809 blk_mq_run_hw_queue(hctx, false); in blk_mq_start_hw_queue()
1815 struct blk_mq_hw_ctx *hctx; in blk_mq_start_hw_queues() local
1818 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_start_hw_queues()
1819 blk_mq_start_hw_queue(hctx); in blk_mq_start_hw_queues()
1823 void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) in blk_mq_start_stopped_hw_queue() argument
1825 if (!blk_mq_hctx_stopped(hctx)) in blk_mq_start_stopped_hw_queue()
1828 clear_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_start_stopped_hw_queue()
1829 blk_mq_run_hw_queue(hctx, async); in blk_mq_start_stopped_hw_queue()
1835 struct blk_mq_hw_ctx *hctx; in blk_mq_start_stopped_hw_queues() local
1838 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_start_stopped_hw_queues()
1839 blk_mq_start_stopped_hw_queue(hctx, async); in blk_mq_start_stopped_hw_queues()
1845 struct blk_mq_hw_ctx *hctx; in blk_mq_run_work_fn() local
1847 hctx = container_of(work, struct blk_mq_hw_ctx, run_work.work); in blk_mq_run_work_fn()
1852 if (blk_mq_hctx_stopped(hctx)) in blk_mq_run_work_fn()
1855 __blk_mq_run_hw_queue(hctx); in blk_mq_run_work_fn()
1858 static inline void __blk_mq_insert_req_list(struct blk_mq_hw_ctx *hctx, in __blk_mq_insert_req_list() argument
1863 enum hctx_type type = hctx->type; in __blk_mq_insert_req_list()
1867 trace_block_rq_insert(hctx->queue, rq); in __blk_mq_insert_req_list()
1875 void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, in __blk_mq_insert_request() argument
1882 __blk_mq_insert_req_list(hctx, rq, at_head); in __blk_mq_insert_request()
1883 blk_mq_hctx_mark_pending(hctx, ctx); in __blk_mq_insert_request()
1898 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_request_bypass_insert() local
1900 spin_lock(&hctx->lock); in blk_mq_request_bypass_insert()
1902 list_add(&rq->queuelist, &hctx->dispatch); in blk_mq_request_bypass_insert()
1904 list_add_tail(&rq->queuelist, &hctx->dispatch); in blk_mq_request_bypass_insert()
1905 spin_unlock(&hctx->lock); in blk_mq_request_bypass_insert()
1908 blk_mq_run_hw_queue(hctx, false); in blk_mq_request_bypass_insert()
1911 void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx, in blk_mq_insert_requests() argument
1916 enum hctx_type type = hctx->type; in blk_mq_insert_requests()
1924 trace_block_rq_insert(hctx->queue, rq); in blk_mq_insert_requests()
1929 blk_mq_hctx_mark_pending(hctx, ctx); in blk_mq_insert_requests()
2001 static blk_status_t __blk_mq_issue_directly(struct blk_mq_hw_ctx *hctx, in __blk_mq_issue_directly() argument
2013 new_cookie = request_to_qc_t(hctx, rq); in __blk_mq_issue_directly()
2020 ret = q->mq_ops->queue_rq(hctx, &bd); in __blk_mq_issue_directly()
2023 blk_mq_update_dispatch_busy(hctx, false); in __blk_mq_issue_directly()
2028 blk_mq_update_dispatch_busy(hctx, true); in __blk_mq_issue_directly()
2032 blk_mq_update_dispatch_busy(hctx, false); in __blk_mq_issue_directly()
2040 static blk_status_t __blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx, in __blk_mq_try_issue_directly() argument
2055 if (blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q)) { in __blk_mq_try_issue_directly()
2072 return __blk_mq_issue_directly(hctx, rq, cookie, last); in __blk_mq_try_issue_directly()
2093 static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx, in blk_mq_try_issue_directly() argument
2099 might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING); in blk_mq_try_issue_directly()
2101 hctx_lock(hctx, &srcu_idx); in blk_mq_try_issue_directly()
2103 ret = __blk_mq_try_issue_directly(hctx, rq, cookie, false, true); in blk_mq_try_issue_directly()
2109 hctx_unlock(hctx, srcu_idx); in blk_mq_try_issue_directly()
2117 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_request_issue_directly() local
2119 hctx_lock(hctx, &srcu_idx); in blk_mq_request_issue_directly()
2120 ret = __blk_mq_try_issue_directly(hctx, rq, &unused_cookie, true, last); in blk_mq_request_issue_directly()
2121 hctx_unlock(hctx, srcu_idx); in blk_mq_request_issue_directly()
2126 void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx, in blk_mq_try_issue_list_directly() argument
2158 hctx->queue->mq_ops->commit_rqs && queued) in blk_mq_try_issue_list_directly()
2159 hctx->queue->mq_ops->commit_rqs(hctx); in blk_mq_try_issue_list_directly()
2246 cookie = request_to_qc_t(data.hctx, rq); in blk_mq_submit_bio()
2262 blk_mq_run_hw_queue(data.hctx, true); in blk_mq_submit_bio()
2309 data.hctx = same_queue_rq->mq_hctx; in blk_mq_submit_bio()
2311 blk_mq_try_issue_directly(data.hctx, same_queue_rq, in blk_mq_submit_bio()
2315 !data.hctx->dispatch_busy) { in blk_mq_submit_bio()
2320 blk_mq_try_issue_directly(data.hctx, rq, &cookie); in blk_mq_submit_bio()
2544 struct blk_mq_hw_ctx *hctx; member
2552 if (rq->mq_hctx != iter_data->hctx) in blk_mq_has_request()
2558 static bool blk_mq_hctx_has_requests(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_has_requests() argument
2560 struct blk_mq_tags *tags = hctx->sched_tags ? in blk_mq_hctx_has_requests()
2561 hctx->sched_tags : hctx->tags; in blk_mq_hctx_has_requests()
2563 .hctx = hctx, in blk_mq_hctx_has_requests()
2571 struct blk_mq_hw_ctx *hctx) in blk_mq_last_cpu_in_hctx() argument
2573 if (cpumask_next_and(-1, hctx->cpumask, cpu_online_mask) != cpu) in blk_mq_last_cpu_in_hctx()
2575 if (cpumask_next_and(cpu, hctx->cpumask, cpu_online_mask) < nr_cpu_ids) in blk_mq_last_cpu_in_hctx()
2582 struct blk_mq_hw_ctx *hctx = hlist_entry_safe(node, in blk_mq_hctx_notify_offline() local
2585 if (!cpumask_test_cpu(cpu, hctx->cpumask) || in blk_mq_hctx_notify_offline()
2586 !blk_mq_last_cpu_in_hctx(cpu, hctx)) in blk_mq_hctx_notify_offline()
2596 set_bit(BLK_MQ_S_INACTIVE, &hctx->state); in blk_mq_hctx_notify_offline()
2604 if (percpu_ref_tryget(&hctx->queue->q_usage_counter)) { in blk_mq_hctx_notify_offline()
2605 while (blk_mq_hctx_has_requests(hctx)) in blk_mq_hctx_notify_offline()
2607 percpu_ref_put(&hctx->queue->q_usage_counter); in blk_mq_hctx_notify_offline()
2615 struct blk_mq_hw_ctx *hctx = hlist_entry_safe(node, in blk_mq_hctx_notify_online() local
2618 if (cpumask_test_cpu(cpu, hctx->cpumask)) in blk_mq_hctx_notify_online()
2619 clear_bit(BLK_MQ_S_INACTIVE, &hctx->state); in blk_mq_hctx_notify_online()
2630 struct blk_mq_hw_ctx *hctx; in blk_mq_hctx_notify_dead() local
2635 hctx = hlist_entry_safe(node, struct blk_mq_hw_ctx, cpuhp_dead); in blk_mq_hctx_notify_dead()
2636 if (!cpumask_test_cpu(cpu, hctx->cpumask)) in blk_mq_hctx_notify_dead()
2639 ctx = __blk_mq_get_ctx(hctx->queue, cpu); in blk_mq_hctx_notify_dead()
2640 type = hctx->type; in blk_mq_hctx_notify_dead()
2645 blk_mq_hctx_clear_pending(hctx, ctx); in blk_mq_hctx_notify_dead()
2652 spin_lock(&hctx->lock); in blk_mq_hctx_notify_dead()
2653 list_splice_tail_init(&tmp, &hctx->dispatch); in blk_mq_hctx_notify_dead()
2654 spin_unlock(&hctx->lock); in blk_mq_hctx_notify_dead()
2656 blk_mq_run_hw_queue(hctx, true); in blk_mq_hctx_notify_dead()
2660 static void blk_mq_remove_cpuhp(struct blk_mq_hw_ctx *hctx) in blk_mq_remove_cpuhp() argument
2662 if (!(hctx->flags & BLK_MQ_F_STACKING)) in blk_mq_remove_cpuhp()
2664 &hctx->cpuhp_online); in blk_mq_remove_cpuhp()
2666 &hctx->cpuhp_dead); in blk_mq_remove_cpuhp()
2701 struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx) in blk_mq_exit_hctx() argument
2703 struct request *flush_rq = hctx->fq->flush_rq; in blk_mq_exit_hctx()
2705 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_exit_hctx()
2706 blk_mq_tag_idle(hctx); in blk_mq_exit_hctx()
2714 set->ops->exit_hctx(hctx, hctx_idx); in blk_mq_exit_hctx()
2716 blk_mq_remove_cpuhp(hctx); in blk_mq_exit_hctx()
2719 list_add(&hctx->hctx_list, &q->unused_hctx_list); in blk_mq_exit_hctx()
2726 struct blk_mq_hw_ctx *hctx; in blk_mq_exit_hw_queues() local
2729 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_exit_hw_queues()
2732 blk_mq_debugfs_unregister_hctx(hctx); in blk_mq_exit_hw_queues()
2733 blk_mq_exit_hctx(q, set, hctx, i); in blk_mq_exit_hw_queues()
2753 struct blk_mq_hw_ctx *hctx, unsigned hctx_idx) in blk_mq_init_hctx() argument
2755 hctx->queue_num = hctx_idx; in blk_mq_init_hctx()
2757 if (!(hctx->flags & BLK_MQ_F_STACKING)) in blk_mq_init_hctx()
2759 &hctx->cpuhp_online); in blk_mq_init_hctx()
2760 cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead); in blk_mq_init_hctx()
2762 hctx->tags = set->tags[hctx_idx]; in blk_mq_init_hctx()
2765 set->ops->init_hctx(hctx, set->driver_data, hctx_idx)) in blk_mq_init_hctx()
2768 if (blk_mq_init_request(set, hctx->fq->flush_rq, hctx_idx, in blk_mq_init_hctx()
2769 hctx->numa_node)) in blk_mq_init_hctx()
2775 set->ops->exit_hctx(hctx, hctx_idx); in blk_mq_init_hctx()
2777 blk_mq_remove_cpuhp(hctx); in blk_mq_init_hctx()
2785 struct blk_mq_hw_ctx *hctx; in blk_mq_alloc_hctx() local
2788 hctx = kzalloc_node(blk_mq_hw_ctx_size(set), gfp, node); in blk_mq_alloc_hctx()
2789 if (!hctx) in blk_mq_alloc_hctx()
2792 if (!zalloc_cpumask_var_node(&hctx->cpumask, gfp, node)) in blk_mq_alloc_hctx()
2795 atomic_set(&hctx->nr_active, 0); in blk_mq_alloc_hctx()
2798 hctx->numa_node = node; in blk_mq_alloc_hctx()
2800 INIT_DELAYED_WORK(&hctx->run_work, blk_mq_run_work_fn); in blk_mq_alloc_hctx()
2801 spin_lock_init(&hctx->lock); in blk_mq_alloc_hctx()
2802 INIT_LIST_HEAD(&hctx->dispatch); in blk_mq_alloc_hctx()
2803 hctx->queue = q; in blk_mq_alloc_hctx()
2804 hctx->flags = set->flags & ~BLK_MQ_F_TAG_QUEUE_SHARED; in blk_mq_alloc_hctx()
2806 INIT_LIST_HEAD(&hctx->hctx_list); in blk_mq_alloc_hctx()
2812 hctx->ctxs = kmalloc_array_node(nr_cpu_ids, sizeof(void *), in blk_mq_alloc_hctx()
2814 if (!hctx->ctxs) in blk_mq_alloc_hctx()
2817 if (sbitmap_init_node(&hctx->ctx_map, nr_cpu_ids, ilog2(8), in blk_mq_alloc_hctx()
2820 hctx->nr_ctx = 0; in blk_mq_alloc_hctx()
2822 spin_lock_init(&hctx->dispatch_wait_lock); in blk_mq_alloc_hctx()
2823 init_waitqueue_func_entry(&hctx->dispatch_wait, blk_mq_dispatch_wake); in blk_mq_alloc_hctx()
2824 INIT_LIST_HEAD(&hctx->dispatch_wait.entry); in blk_mq_alloc_hctx()
2826 hctx->fq = blk_alloc_flush_queue(hctx->numa_node, set->cmd_size, gfp); in blk_mq_alloc_hctx()
2827 if (!hctx->fq) in blk_mq_alloc_hctx()
2830 if (hctx->flags & BLK_MQ_F_BLOCKING) in blk_mq_alloc_hctx()
2831 init_srcu_struct(hctx->srcu); in blk_mq_alloc_hctx()
2832 blk_mq_hctx_kobj_init(hctx); in blk_mq_alloc_hctx()
2834 return hctx; in blk_mq_alloc_hctx()
2837 sbitmap_free(&hctx->ctx_map); in blk_mq_alloc_hctx()
2839 kfree(hctx->ctxs); in blk_mq_alloc_hctx()
2841 free_cpumask_var(hctx->cpumask); in blk_mq_alloc_hctx()
2843 kfree(hctx); in blk_mq_alloc_hctx()
2856 struct blk_mq_hw_ctx *hctx; in blk_mq_init_cpu_queues() local
2871 hctx = blk_mq_map_queue_type(q, j, i); in blk_mq_init_cpu_queues()
2872 if (nr_hw_queues > 1 && hctx->numa_node == NUMA_NO_NODE) in blk_mq_init_cpu_queues()
2873 hctx->numa_node = cpu_to_node(i); in blk_mq_init_cpu_queues()
2914 struct blk_mq_hw_ctx *hctx; in blk_mq_map_swqueue() local
2918 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_map_swqueue()
2919 cpumask_clear(hctx->cpumask); in blk_mq_map_swqueue()
2920 hctx->nr_ctx = 0; in blk_mq_map_swqueue()
2921 hctx->dispatch_from = NULL; in blk_mq_map_swqueue()
2951 hctx = blk_mq_map_queue_type(q, j, i); in blk_mq_map_swqueue()
2952 ctx->hctxs[j] = hctx; in blk_mq_map_swqueue()
2958 if (cpumask_test_cpu(i, hctx->cpumask)) in blk_mq_map_swqueue()
2961 cpumask_set_cpu(i, hctx->cpumask); in blk_mq_map_swqueue()
2962 hctx->type = j; in blk_mq_map_swqueue()
2963 ctx->index_hw[hctx->type] = hctx->nr_ctx; in blk_mq_map_swqueue()
2964 hctx->ctxs[hctx->nr_ctx++] = ctx; in blk_mq_map_swqueue()
2970 BUG_ON(!hctx->nr_ctx); in blk_mq_map_swqueue()
2978 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_map_swqueue()
2983 if (!hctx->nr_ctx) { in blk_mq_map_swqueue()
2991 hctx->tags = NULL; in blk_mq_map_swqueue()
2995 hctx->tags = set->tags[i]; in blk_mq_map_swqueue()
2996 WARN_ON(!hctx->tags); in blk_mq_map_swqueue()
3003 sbitmap_resize(&hctx->ctx_map, hctx->nr_ctx); in blk_mq_map_swqueue()
3008 hctx->next_cpu = blk_mq_first_mapped_cpu(hctx); in blk_mq_map_swqueue()
3009 hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH; in blk_mq_map_swqueue()
3019 struct blk_mq_hw_ctx *hctx; in queue_set_hctx_shared() local
3022 queue_for_each_hw_ctx(q, hctx, i) { in queue_set_hctx_shared()
3024 hctx->flags |= BLK_MQ_F_TAG_QUEUE_SHARED; in queue_set_hctx_shared()
3026 hctx->flags &= ~BLK_MQ_F_TAG_QUEUE_SHARED; in queue_set_hctx_shared()
3117 struct blk_mq_hw_ctx *hctx, *next; in blk_mq_release() local
3120 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_release()
3121 WARN_ON_ONCE(hctx && list_empty(&hctx->hctx_list)); in blk_mq_release()
3124 list_for_each_entry_safe(hctx, next, &q->unused_hctx_list, hctx_list) { in blk_mq_release()
3125 list_del_init(&hctx->hctx_list); in blk_mq_release()
3126 kobject_put(&hctx->kobj); in blk_mq_release()
3204 struct blk_mq_hw_ctx *hctx = NULL, *tmp; in blk_mq_alloc_and_init_hctx() local
3210 hctx = tmp; in blk_mq_alloc_and_init_hctx()
3214 if (hctx) in blk_mq_alloc_and_init_hctx()
3215 list_del_init(&hctx->hctx_list); in blk_mq_alloc_and_init_hctx()
3218 if (!hctx) in blk_mq_alloc_and_init_hctx()
3219 hctx = blk_mq_alloc_hctx(q, set, node); in blk_mq_alloc_and_init_hctx()
3220 if (!hctx) in blk_mq_alloc_and_init_hctx()
3223 if (blk_mq_init_hctx(q, set, hctx, hctx_idx)) in blk_mq_alloc_and_init_hctx()
3226 return hctx; in blk_mq_alloc_and_init_hctx()
3229 kobject_put(&hctx->kobj); in blk_mq_alloc_and_init_hctx()
3260 struct blk_mq_hw_ctx *hctx; in blk_mq_realloc_hw_ctxs() local
3271 hctx = blk_mq_alloc_and_init_hctx(set, q, i, node); in blk_mq_realloc_hw_ctxs()
3272 if (hctx) { in blk_mq_realloc_hw_ctxs()
3275 hctxs[i] = hctx; in blk_mq_realloc_hw_ctxs()
3299 struct blk_mq_hw_ctx *hctx = hctxs[j]; in blk_mq_realloc_hw_ctxs() local
3301 if (hctx) { in blk_mq_realloc_hw_ctxs()
3302 if (hctx->tags) in blk_mq_realloc_hw_ctxs()
3304 blk_mq_exit_hctx(q, set, hctx, j); in blk_mq_realloc_hw_ctxs()
3632 struct blk_mq_hw_ctx *hctx; in blk_mq_update_nr_requests() local
3645 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_update_nr_requests()
3646 if (!hctx->tags) in blk_mq_update_nr_requests()
3652 if (!hctx->sched_tags) { in blk_mq_update_nr_requests()
3653 ret = blk_mq_tag_update_depth(hctx, &hctx->tags, nr, in blk_mq_update_nr_requests()
3658 ret = blk_mq_tag_update_depth(hctx, &hctx->sched_tags, in blk_mq_update_nr_requests()
3664 q->elevator->type->ops.depth_updated(hctx); in blk_mq_update_nr_requests()
3940 struct blk_mq_hw_ctx *hctx, blk_qc_t cookie) in blk_mq_poll_hybrid() argument
3948 rq = blk_mq_tag_to_rq(hctx->tags, blk_qc_t_to_tag(cookie)); in blk_mq_poll_hybrid()
3950 rq = blk_mq_tag_to_rq(hctx->sched_tags, blk_qc_t_to_tag(cookie)); in blk_mq_poll_hybrid()
3978 struct blk_mq_hw_ctx *hctx; in blk_poll() local
3988 hctx = q->queue_hw_ctx[blk_qc_t_to_queue_num(cookie)]; in blk_poll()
3997 if (blk_mq_poll_hybrid(q, hctx, cookie)) in blk_poll()
4000 hctx->poll_considered++; in blk_poll()
4006 hctx->poll_invoked++; in blk_poll()
4008 ret = q->mq_ops->poll(hctx); in blk_poll()
4010 hctx->poll_success++; in blk_poll()