Lines Matching refs:hctx
70 static bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_has_pending() argument
72 return !list_empty_careful(&hctx->dispatch) || in blk_mq_hctx_has_pending()
73 sbitmap_any_bit_set(&hctx->ctx_map) || in blk_mq_hctx_has_pending()
74 blk_mq_sched_has_work(hctx); in blk_mq_hctx_has_pending()
80 static void blk_mq_hctx_mark_pending(struct blk_mq_hw_ctx *hctx, in blk_mq_hctx_mark_pending() argument
83 const int bit = ctx->index_hw[hctx->type]; in blk_mq_hctx_mark_pending()
85 if (!sbitmap_test_bit(&hctx->ctx_map, bit)) in blk_mq_hctx_mark_pending()
86 sbitmap_set_bit(&hctx->ctx_map, bit); in blk_mq_hctx_mark_pending()
89 static void blk_mq_hctx_clear_pending(struct blk_mq_hw_ctx *hctx, in blk_mq_hctx_clear_pending() argument
92 const int bit = ctx->index_hw[hctx->type]; in blk_mq_hctx_clear_pending()
94 sbitmap_clear_bit(&hctx->ctx_map, bit); in blk_mq_hctx_clear_pending()
102 static bool blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx, in blk_mq_check_inflight() argument
229 struct blk_mq_hw_ctx *hctx; in blk_mq_quiesce_queue() local
235 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_quiesce_queue()
236 if (hctx->flags & BLK_MQ_F_BLOCKING) in blk_mq_quiesce_queue()
237 synchronize_srcu(hctx->srcu); in blk_mq_quiesce_queue()
275 struct blk_mq_hw_ctx *hctx; in blk_mq_wake_waiters() local
278 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_wake_waiters()
279 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_wake_waiters()
280 blk_mq_tag_wakeup_all(hctx->tags, true); in blk_mq_wake_waiters()
309 rq->mq_hctx = data->hctx; in blk_mq_rq_ctx_init()
359 data->hctx->queued++; in blk_mq_rq_ctx_init()
391 data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx); in __blk_mq_alloc_request()
393 blk_mq_tag_busy(data->hctx); in __blk_mq_alloc_request()
483 data.hctx = q->queue_hw_ctx[hctx_idx]; in blk_mq_alloc_request_hctx()
484 if (!blk_mq_hw_queue_mapped(data.hctx)) in blk_mq_alloc_request_hctx()
486 cpu = cpumask_first_and(data.hctx->cpumask, cpu_online_mask); in blk_mq_alloc_request_hctx()
492 blk_mq_tag_busy(data.hctx); in blk_mq_alloc_request_hctx()
510 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in __blk_mq_free_request() local
517 blk_mq_put_tag(hctx->tags, ctx, rq->tag); in __blk_mq_free_request()
519 blk_mq_put_tag(hctx->sched_tags, ctx, sched_tag); in __blk_mq_free_request()
520 blk_mq_sched_restart(hctx); in __blk_mq_free_request()
529 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_free_request() local
542 __blk_mq_dec_active_requests(hctx); in blk_mq_free_request()
722 static void hctx_unlock(struct blk_mq_hw_ctx *hctx, int srcu_idx) in hctx_unlock() argument
723 __releases(hctx->srcu) in hctx_unlock()
725 if (!(hctx->flags & BLK_MQ_F_BLOCKING)) in hctx_unlock()
728 srcu_read_unlock(hctx->srcu, srcu_idx); in hctx_unlock()
731 static void hctx_lock(struct blk_mq_hw_ctx *hctx, int *srcu_idx) in hctx_lock() argument
732 __acquires(hctx->srcu) in hctx_lock()
734 if (!(hctx->flags & BLK_MQ_F_BLOCKING)) { in hctx_lock()
739 *srcu_idx = srcu_read_lock(hctx->srcu); in hctx_lock()
888 static bool blk_mq_rq_inflight(struct blk_mq_hw_ctx *hctx, struct request *rq, in blk_mq_rq_inflight() argument
895 if (blk_mq_request_started(rq) && rq->q == hctx->queue) { in blk_mq_rq_inflight()
957 static bool blk_mq_check_expired(struct blk_mq_hw_ctx *hctx, in blk_mq_check_expired() argument
979 struct blk_mq_hw_ctx *hctx; in blk_mq_timeout_work() local
1009 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_timeout_work()
1011 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_timeout_work()
1012 blk_mq_tag_idle(hctx); in blk_mq_timeout_work()
1019 struct blk_mq_hw_ctx *hctx; member
1026 struct blk_mq_hw_ctx *hctx = flush_data->hctx; in flush_busy_ctx() local
1027 struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; in flush_busy_ctx()
1028 enum hctx_type type = hctx->type; in flush_busy_ctx()
1041 void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list) in blk_mq_flush_busy_ctxs() argument
1044 .hctx = hctx, in blk_mq_flush_busy_ctxs()
1048 sbitmap_for_each_set(&hctx->ctx_map, flush_busy_ctx, &data); in blk_mq_flush_busy_ctxs()
1053 struct blk_mq_hw_ctx *hctx; member
1061 struct blk_mq_hw_ctx *hctx = dispatch_data->hctx; in dispatch_rq_from_ctx() local
1062 struct blk_mq_ctx *ctx = hctx->ctxs[bitnr]; in dispatch_rq_from_ctx()
1063 enum hctx_type type = hctx->type; in dispatch_rq_from_ctx()
1077 struct request *blk_mq_dequeue_from_ctx(struct blk_mq_hw_ctx *hctx, in blk_mq_dequeue_from_ctx() argument
1080 unsigned off = start ? start->index_hw[hctx->type] : 0; in blk_mq_dequeue_from_ctx()
1082 .hctx = hctx, in blk_mq_dequeue_from_ctx()
1086 __sbitmap_for_each_set(&hctx->ctx_map, off, in blk_mq_dequeue_from_ctx()
1126 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_get_driver_tag() local
1131 if ((hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) && in blk_mq_get_driver_tag()
1134 __blk_mq_inc_active_requests(hctx); in blk_mq_get_driver_tag()
1136 hctx->tags->rqs[rq->tag] = rq; in blk_mq_get_driver_tag()
1143 struct blk_mq_hw_ctx *hctx; in blk_mq_dispatch_wake() local
1145 hctx = container_of(wait, struct blk_mq_hw_ctx, dispatch_wait); in blk_mq_dispatch_wake()
1147 spin_lock(&hctx->dispatch_wait_lock); in blk_mq_dispatch_wake()
1152 sbq = hctx->tags->bitmap_tags; in blk_mq_dispatch_wake()
1155 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_dispatch_wake()
1157 blk_mq_run_hw_queue(hctx, true); in blk_mq_dispatch_wake()
1167 static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx *hctx, in blk_mq_mark_tag_wait() argument
1170 struct sbitmap_queue *sbq = hctx->tags->bitmap_tags; in blk_mq_mark_tag_wait()
1175 if (!(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)) { in blk_mq_mark_tag_wait()
1176 blk_mq_sched_mark_restart_hctx(hctx); in blk_mq_mark_tag_wait()
1189 wait = &hctx->dispatch_wait; in blk_mq_mark_tag_wait()
1193 wq = &bt_wait_ptr(sbq, hctx)->wait; in blk_mq_mark_tag_wait()
1196 spin_lock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1198 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1214 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1225 spin_unlock(&hctx->dispatch_wait_lock); in blk_mq_mark_tag_wait()
1240 static void blk_mq_update_dispatch_busy(struct blk_mq_hw_ctx *hctx, bool busy) in blk_mq_update_dispatch_busy() argument
1244 ewma = hctx->dispatch_busy; in blk_mq_update_dispatch_busy()
1254 hctx->dispatch_busy = ewma; in blk_mq_update_dispatch_busy()
1298 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_prep_dispatch_rq() local
1313 if (!blk_mq_mark_tag_wait(hctx, rq)) { in blk_mq_prep_dispatch_rq()
1340 bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list, in blk_mq_dispatch_rq_list() argument
1344 struct request_queue *q = hctx->queue; in blk_mq_dispatch_rq_list()
1363 WARN_ON_ONCE(hctx != rq->mq_hctx); in blk_mq_dispatch_rq_list()
1389 ret = q->mq_ops->queue_rq(hctx, &bd); in blk_mq_dispatch_rq_list()
1418 hctx->dispatched[queued_to_index(queued)]++; in blk_mq_dispatch_rq_list()
1425 q->mq_ops->commit_rqs(hctx); in blk_mq_dispatch_rq_list()
1434 (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED); in blk_mq_dispatch_rq_list()
1438 spin_lock(&hctx->lock); in blk_mq_dispatch_rq_list()
1439 list_splice_tail_init(list, &hctx->dispatch); in blk_mq_dispatch_rq_list()
1440 spin_unlock(&hctx->lock); in blk_mq_dispatch_rq_list()
1477 needs_restart = blk_mq_sched_needs_restart(hctx); in blk_mq_dispatch_rq_list()
1481 (no_tag && list_empty_careful(&hctx->dispatch_wait.entry))) in blk_mq_dispatch_rq_list()
1482 blk_mq_run_hw_queue(hctx, true); in blk_mq_dispatch_rq_list()
1484 blk_mq_delay_run_hw_queue(hctx, BLK_MQ_RESOURCE_DELAY); in blk_mq_dispatch_rq_list()
1486 blk_mq_update_dispatch_busy(hctx, true); in blk_mq_dispatch_rq_list()
1489 blk_mq_update_dispatch_busy(hctx, false); in blk_mq_dispatch_rq_list()
1500 static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx) in __blk_mq_run_hw_queue() argument
1521 if (!cpumask_test_cpu(raw_smp_processor_id(), hctx->cpumask) && in __blk_mq_run_hw_queue()
1522 cpu_online(hctx->next_cpu)) { in __blk_mq_run_hw_queue()
1525 cpumask_empty(hctx->cpumask) ? "inactive": "active"); in __blk_mq_run_hw_queue()
1535 might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING); in __blk_mq_run_hw_queue()
1537 hctx_lock(hctx, &srcu_idx); in __blk_mq_run_hw_queue()
1538 blk_mq_sched_dispatch_requests(hctx); in __blk_mq_run_hw_queue()
1539 hctx_unlock(hctx, srcu_idx); in __blk_mq_run_hw_queue()
1542 static inline int blk_mq_first_mapped_cpu(struct blk_mq_hw_ctx *hctx) in blk_mq_first_mapped_cpu() argument
1544 int cpu = cpumask_first_and(hctx->cpumask, cpu_online_mask); in blk_mq_first_mapped_cpu()
1547 cpu = cpumask_first(hctx->cpumask); in blk_mq_first_mapped_cpu()
1557 static int blk_mq_hctx_next_cpu(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_next_cpu() argument
1560 int next_cpu = hctx->next_cpu; in blk_mq_hctx_next_cpu()
1562 if (hctx->queue->nr_hw_queues == 1) in blk_mq_hctx_next_cpu()
1565 if (--hctx->next_cpu_batch <= 0) { in blk_mq_hctx_next_cpu()
1567 next_cpu = cpumask_next_and(next_cpu, hctx->cpumask, in blk_mq_hctx_next_cpu()
1570 next_cpu = blk_mq_first_mapped_cpu(hctx); in blk_mq_hctx_next_cpu()
1571 hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH; in blk_mq_hctx_next_cpu()
1588 hctx->next_cpu = next_cpu; in blk_mq_hctx_next_cpu()
1589 hctx->next_cpu_batch = 1; in blk_mq_hctx_next_cpu()
1593 hctx->next_cpu = next_cpu; in blk_mq_hctx_next_cpu()
1606 static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async, in __blk_mq_delay_run_hw_queue() argument
1609 if (unlikely(blk_mq_hctx_stopped(hctx))) in __blk_mq_delay_run_hw_queue()
1612 if (!async && !(hctx->flags & BLK_MQ_F_BLOCKING)) { in __blk_mq_delay_run_hw_queue()
1614 if (cpumask_test_cpu(cpu, hctx->cpumask)) { in __blk_mq_delay_run_hw_queue()
1615 __blk_mq_run_hw_queue(hctx); in __blk_mq_delay_run_hw_queue()
1623 kblockd_mod_delayed_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work, in __blk_mq_delay_run_hw_queue()
1634 void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs) in blk_mq_delay_run_hw_queue() argument
1636 __blk_mq_delay_run_hw_queue(hctx, true, msecs); in blk_mq_delay_run_hw_queue()
1649 void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) in blk_mq_run_hw_queue() argument
1662 hctx_lock(hctx, &srcu_idx); in blk_mq_run_hw_queue()
1663 need_run = !blk_queue_quiesced(hctx->queue) && in blk_mq_run_hw_queue()
1664 blk_mq_hctx_has_pending(hctx); in blk_mq_run_hw_queue()
1665 hctx_unlock(hctx, srcu_idx); in blk_mq_run_hw_queue()
1668 __blk_mq_delay_run_hw_queue(hctx, async, 0); in blk_mq_run_hw_queue()
1679 struct blk_mq_hw_ctx *hctx; in blk_mq_run_hw_queues() local
1682 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_run_hw_queues()
1683 if (blk_mq_hctx_stopped(hctx)) in blk_mq_run_hw_queues()
1686 blk_mq_run_hw_queue(hctx, async); in blk_mq_run_hw_queues()
1698 struct blk_mq_hw_ctx *hctx; in blk_mq_delay_run_hw_queues() local
1701 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_delay_run_hw_queues()
1702 if (blk_mq_hctx_stopped(hctx)) in blk_mq_delay_run_hw_queues()
1705 blk_mq_delay_run_hw_queue(hctx, msecs); in blk_mq_delay_run_hw_queues()
1719 struct blk_mq_hw_ctx *hctx; in blk_mq_queue_stopped() local
1722 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_queue_stopped()
1723 if (blk_mq_hctx_stopped(hctx)) in blk_mq_queue_stopped()
1739 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx) in blk_mq_stop_hw_queue() argument
1741 cancel_delayed_work(&hctx->run_work); in blk_mq_stop_hw_queue()
1743 set_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_stop_hw_queue()
1758 struct blk_mq_hw_ctx *hctx; in blk_mq_stop_hw_queues() local
1761 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_stop_hw_queues()
1762 blk_mq_stop_hw_queue(hctx); in blk_mq_stop_hw_queues()
1766 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx) in blk_mq_start_hw_queue() argument
1768 clear_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_start_hw_queue()
1770 blk_mq_run_hw_queue(hctx, false); in blk_mq_start_hw_queue()
1776 struct blk_mq_hw_ctx *hctx; in blk_mq_start_hw_queues() local
1779 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_start_hw_queues()
1780 blk_mq_start_hw_queue(hctx); in blk_mq_start_hw_queues()
1784 void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async) in blk_mq_start_stopped_hw_queue() argument
1786 if (!blk_mq_hctx_stopped(hctx)) in blk_mq_start_stopped_hw_queue()
1789 clear_bit(BLK_MQ_S_STOPPED, &hctx->state); in blk_mq_start_stopped_hw_queue()
1790 blk_mq_run_hw_queue(hctx, async); in blk_mq_start_stopped_hw_queue()
1796 struct blk_mq_hw_ctx *hctx; in blk_mq_start_stopped_hw_queues() local
1799 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_start_stopped_hw_queues()
1800 blk_mq_start_stopped_hw_queue(hctx, async); in blk_mq_start_stopped_hw_queues()
1806 struct blk_mq_hw_ctx *hctx; in blk_mq_run_work_fn() local
1808 hctx = container_of(work, struct blk_mq_hw_ctx, run_work.work); in blk_mq_run_work_fn()
1813 if (blk_mq_hctx_stopped(hctx)) in blk_mq_run_work_fn()
1816 __blk_mq_run_hw_queue(hctx); in blk_mq_run_work_fn()
1819 static inline void __blk_mq_insert_req_list(struct blk_mq_hw_ctx *hctx, in __blk_mq_insert_req_list() argument
1824 enum hctx_type type = hctx->type; in __blk_mq_insert_req_list()
1836 void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, in __blk_mq_insert_request() argument
1843 __blk_mq_insert_req_list(hctx, rq, at_head); in __blk_mq_insert_request()
1844 blk_mq_hctx_mark_pending(hctx, ctx); in __blk_mq_insert_request()
1859 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_request_bypass_insert() local
1861 spin_lock(&hctx->lock); in blk_mq_request_bypass_insert()
1863 list_add(&rq->queuelist, &hctx->dispatch); in blk_mq_request_bypass_insert()
1865 list_add_tail(&rq->queuelist, &hctx->dispatch); in blk_mq_request_bypass_insert()
1866 spin_unlock(&hctx->lock); in blk_mq_request_bypass_insert()
1869 blk_mq_run_hw_queue(hctx, false); in blk_mq_request_bypass_insert()
1872 void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx, in blk_mq_insert_requests() argument
1877 enum hctx_type type = hctx->type; in blk_mq_insert_requests()
1890 blk_mq_hctx_mark_pending(hctx, ctx); in blk_mq_insert_requests()
1963 static blk_status_t __blk_mq_issue_directly(struct blk_mq_hw_ctx *hctx, in __blk_mq_issue_directly() argument
1975 new_cookie = request_to_qc_t(hctx, rq); in __blk_mq_issue_directly()
1982 ret = q->mq_ops->queue_rq(hctx, &bd); in __blk_mq_issue_directly()
1985 blk_mq_update_dispatch_busy(hctx, false); in __blk_mq_issue_directly()
1990 blk_mq_update_dispatch_busy(hctx, true); in __blk_mq_issue_directly()
1994 blk_mq_update_dispatch_busy(hctx, false); in __blk_mq_issue_directly()
2002 static blk_status_t __blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx, in __blk_mq_try_issue_directly() argument
2017 if (blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q)) { in __blk_mq_try_issue_directly()
2034 return __blk_mq_issue_directly(hctx, rq, cookie, last); in __blk_mq_try_issue_directly()
2055 static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx, in blk_mq_try_issue_directly() argument
2061 might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING); in blk_mq_try_issue_directly()
2063 hctx_lock(hctx, &srcu_idx); in blk_mq_try_issue_directly()
2065 ret = __blk_mq_try_issue_directly(hctx, rq, cookie, false, true); in blk_mq_try_issue_directly()
2071 hctx_unlock(hctx, srcu_idx); in blk_mq_try_issue_directly()
2079 struct blk_mq_hw_ctx *hctx = rq->mq_hctx; in blk_mq_request_issue_directly() local
2081 hctx_lock(hctx, &srcu_idx); in blk_mq_request_issue_directly()
2082 ret = __blk_mq_try_issue_directly(hctx, rq, &unused_cookie, true, last); in blk_mq_request_issue_directly()
2083 hctx_unlock(hctx, srcu_idx); in blk_mq_request_issue_directly()
2088 void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx, in blk_mq_try_issue_list_directly() argument
2120 hctx->queue->mq_ops->commit_rqs && queued) in blk_mq_try_issue_list_directly()
2121 hctx->queue->mq_ops->commit_rqs(hctx); in blk_mq_try_issue_list_directly()
2208 cookie = request_to_qc_t(data.hctx, rq); in blk_mq_submit_bio()
2224 blk_mq_run_hw_queue(data.hctx, true); in blk_mq_submit_bio()
2271 data.hctx = same_queue_rq->mq_hctx; in blk_mq_submit_bio()
2273 blk_mq_try_issue_directly(data.hctx, same_queue_rq, in blk_mq_submit_bio()
2277 !data.hctx->dispatch_busy) { in blk_mq_submit_bio()
2282 blk_mq_try_issue_directly(data.hctx, rq, &cookie); in blk_mq_submit_bio()
2505 struct blk_mq_hw_ctx *hctx; member
2513 if (rq->mq_hctx != iter_data->hctx) in blk_mq_has_request()
2519 static bool blk_mq_hctx_has_requests(struct blk_mq_hw_ctx *hctx) in blk_mq_hctx_has_requests() argument
2521 struct blk_mq_tags *tags = hctx->sched_tags ? in blk_mq_hctx_has_requests()
2522 hctx->sched_tags : hctx->tags; in blk_mq_hctx_has_requests()
2524 .hctx = hctx, in blk_mq_hctx_has_requests()
2532 struct blk_mq_hw_ctx *hctx) in blk_mq_last_cpu_in_hctx() argument
2534 if (cpumask_next_and(-1, hctx->cpumask, cpu_online_mask) != cpu) in blk_mq_last_cpu_in_hctx()
2536 if (cpumask_next_and(cpu, hctx->cpumask, cpu_online_mask) < nr_cpu_ids) in blk_mq_last_cpu_in_hctx()
2543 struct blk_mq_hw_ctx *hctx = hlist_entry_safe(node, in blk_mq_hctx_notify_offline() local
2546 if (!cpumask_test_cpu(cpu, hctx->cpumask) || in blk_mq_hctx_notify_offline()
2547 !blk_mq_last_cpu_in_hctx(cpu, hctx)) in blk_mq_hctx_notify_offline()
2557 set_bit(BLK_MQ_S_INACTIVE, &hctx->state); in blk_mq_hctx_notify_offline()
2565 if (percpu_ref_tryget(&hctx->queue->q_usage_counter)) { in blk_mq_hctx_notify_offline()
2566 while (blk_mq_hctx_has_requests(hctx)) in blk_mq_hctx_notify_offline()
2568 percpu_ref_put(&hctx->queue->q_usage_counter); in blk_mq_hctx_notify_offline()
2576 struct blk_mq_hw_ctx *hctx = hlist_entry_safe(node, in blk_mq_hctx_notify_online() local
2579 if (cpumask_test_cpu(cpu, hctx->cpumask)) in blk_mq_hctx_notify_online()
2580 clear_bit(BLK_MQ_S_INACTIVE, &hctx->state); in blk_mq_hctx_notify_online()
2591 struct blk_mq_hw_ctx *hctx; in blk_mq_hctx_notify_dead() local
2596 hctx = hlist_entry_safe(node, struct blk_mq_hw_ctx, cpuhp_dead); in blk_mq_hctx_notify_dead()
2597 if (!cpumask_test_cpu(cpu, hctx->cpumask)) in blk_mq_hctx_notify_dead()
2600 ctx = __blk_mq_get_ctx(hctx->queue, cpu); in blk_mq_hctx_notify_dead()
2601 type = hctx->type; in blk_mq_hctx_notify_dead()
2606 blk_mq_hctx_clear_pending(hctx, ctx); in blk_mq_hctx_notify_dead()
2613 spin_lock(&hctx->lock); in blk_mq_hctx_notify_dead()
2614 list_splice_tail_init(&tmp, &hctx->dispatch); in blk_mq_hctx_notify_dead()
2615 spin_unlock(&hctx->lock); in blk_mq_hctx_notify_dead()
2617 blk_mq_run_hw_queue(hctx, true); in blk_mq_hctx_notify_dead()
2621 static void blk_mq_remove_cpuhp(struct blk_mq_hw_ctx *hctx) in blk_mq_remove_cpuhp() argument
2623 if (!(hctx->flags & BLK_MQ_F_STACKING)) in blk_mq_remove_cpuhp()
2625 &hctx->cpuhp_online); in blk_mq_remove_cpuhp()
2627 &hctx->cpuhp_dead); in blk_mq_remove_cpuhp()
2662 struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx) in blk_mq_exit_hctx() argument
2664 struct request *flush_rq = hctx->fq->flush_rq; in blk_mq_exit_hctx()
2666 if (blk_mq_hw_queue_mapped(hctx)) in blk_mq_exit_hctx()
2667 blk_mq_tag_idle(hctx); in blk_mq_exit_hctx()
2675 set->ops->exit_hctx(hctx, hctx_idx); in blk_mq_exit_hctx()
2677 blk_mq_remove_cpuhp(hctx); in blk_mq_exit_hctx()
2680 list_add(&hctx->hctx_list, &q->unused_hctx_list); in blk_mq_exit_hctx()
2687 struct blk_mq_hw_ctx *hctx; in blk_mq_exit_hw_queues() local
2690 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_exit_hw_queues()
2693 blk_mq_debugfs_unregister_hctx(hctx); in blk_mq_exit_hw_queues()
2694 blk_mq_exit_hctx(q, set, hctx, i); in blk_mq_exit_hw_queues()
2714 struct blk_mq_hw_ctx *hctx, unsigned hctx_idx) in blk_mq_init_hctx() argument
2716 hctx->queue_num = hctx_idx; in blk_mq_init_hctx()
2718 if (!(hctx->flags & BLK_MQ_F_STACKING)) in blk_mq_init_hctx()
2720 &hctx->cpuhp_online); in blk_mq_init_hctx()
2721 cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead); in blk_mq_init_hctx()
2723 hctx->tags = set->tags[hctx_idx]; in blk_mq_init_hctx()
2726 set->ops->init_hctx(hctx, set->driver_data, hctx_idx)) in blk_mq_init_hctx()
2729 if (blk_mq_init_request(set, hctx->fq->flush_rq, hctx_idx, in blk_mq_init_hctx()
2730 hctx->numa_node)) in blk_mq_init_hctx()
2736 set->ops->exit_hctx(hctx, hctx_idx); in blk_mq_init_hctx()
2738 blk_mq_remove_cpuhp(hctx); in blk_mq_init_hctx()
2746 struct blk_mq_hw_ctx *hctx; in blk_mq_alloc_hctx() local
2749 hctx = kzalloc_node(blk_mq_hw_ctx_size(set), gfp, node); in blk_mq_alloc_hctx()
2750 if (!hctx) in blk_mq_alloc_hctx()
2753 if (!zalloc_cpumask_var_node(&hctx->cpumask, gfp, node)) in blk_mq_alloc_hctx()
2756 atomic_set(&hctx->nr_active, 0); in blk_mq_alloc_hctx()
2757 atomic_set(&hctx->elevator_queued, 0); in blk_mq_alloc_hctx()
2760 hctx->numa_node = node; in blk_mq_alloc_hctx()
2762 INIT_DELAYED_WORK(&hctx->run_work, blk_mq_run_work_fn); in blk_mq_alloc_hctx()
2763 spin_lock_init(&hctx->lock); in blk_mq_alloc_hctx()
2764 INIT_LIST_HEAD(&hctx->dispatch); in blk_mq_alloc_hctx()
2765 hctx->queue = q; in blk_mq_alloc_hctx()
2766 hctx->flags = set->flags & ~BLK_MQ_F_TAG_QUEUE_SHARED; in blk_mq_alloc_hctx()
2768 INIT_LIST_HEAD(&hctx->hctx_list); in blk_mq_alloc_hctx()
2774 hctx->ctxs = kmalloc_array_node(nr_cpu_ids, sizeof(void *), in blk_mq_alloc_hctx()
2776 if (!hctx->ctxs) in blk_mq_alloc_hctx()
2779 if (sbitmap_init_node(&hctx->ctx_map, nr_cpu_ids, ilog2(8), in blk_mq_alloc_hctx()
2782 hctx->nr_ctx = 0; in blk_mq_alloc_hctx()
2784 spin_lock_init(&hctx->dispatch_wait_lock); in blk_mq_alloc_hctx()
2785 init_waitqueue_func_entry(&hctx->dispatch_wait, blk_mq_dispatch_wake); in blk_mq_alloc_hctx()
2786 INIT_LIST_HEAD(&hctx->dispatch_wait.entry); in blk_mq_alloc_hctx()
2788 hctx->fq = blk_alloc_flush_queue(hctx->numa_node, set->cmd_size, gfp); in blk_mq_alloc_hctx()
2789 if (!hctx->fq) in blk_mq_alloc_hctx()
2792 if (hctx->flags & BLK_MQ_F_BLOCKING) in blk_mq_alloc_hctx()
2793 init_srcu_struct(hctx->srcu); in blk_mq_alloc_hctx()
2794 blk_mq_hctx_kobj_init(hctx); in blk_mq_alloc_hctx()
2796 return hctx; in blk_mq_alloc_hctx()
2799 sbitmap_free(&hctx->ctx_map); in blk_mq_alloc_hctx()
2801 kfree(hctx->ctxs); in blk_mq_alloc_hctx()
2803 free_cpumask_var(hctx->cpumask); in blk_mq_alloc_hctx()
2805 kfree(hctx); in blk_mq_alloc_hctx()
2818 struct blk_mq_hw_ctx *hctx; in blk_mq_init_cpu_queues() local
2833 hctx = blk_mq_map_queue_type(q, j, i); in blk_mq_init_cpu_queues()
2834 if (nr_hw_queues > 1 && hctx->numa_node == NUMA_NO_NODE) in blk_mq_init_cpu_queues()
2835 hctx->numa_node = cpu_to_node(i); in blk_mq_init_cpu_queues()
2876 struct blk_mq_hw_ctx *hctx; in blk_mq_map_swqueue() local
2880 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_map_swqueue()
2881 cpumask_clear(hctx->cpumask); in blk_mq_map_swqueue()
2882 hctx->nr_ctx = 0; in blk_mq_map_swqueue()
2883 hctx->dispatch_from = NULL; in blk_mq_map_swqueue()
2913 hctx = blk_mq_map_queue_type(q, j, i); in blk_mq_map_swqueue()
2914 ctx->hctxs[j] = hctx; in blk_mq_map_swqueue()
2920 if (cpumask_test_cpu(i, hctx->cpumask)) in blk_mq_map_swqueue()
2923 cpumask_set_cpu(i, hctx->cpumask); in blk_mq_map_swqueue()
2924 hctx->type = j; in blk_mq_map_swqueue()
2925 ctx->index_hw[hctx->type] = hctx->nr_ctx; in blk_mq_map_swqueue()
2926 hctx->ctxs[hctx->nr_ctx++] = ctx; in blk_mq_map_swqueue()
2932 BUG_ON(!hctx->nr_ctx); in blk_mq_map_swqueue()
2940 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_map_swqueue()
2945 if (!hctx->nr_ctx) { in blk_mq_map_swqueue()
2953 hctx->tags = NULL; in blk_mq_map_swqueue()
2957 hctx->tags = set->tags[i]; in blk_mq_map_swqueue()
2958 WARN_ON(!hctx->tags); in blk_mq_map_swqueue()
2965 sbitmap_resize(&hctx->ctx_map, hctx->nr_ctx); in blk_mq_map_swqueue()
2970 hctx->next_cpu = blk_mq_first_mapped_cpu(hctx); in blk_mq_map_swqueue()
2971 hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH; in blk_mq_map_swqueue()
2981 struct blk_mq_hw_ctx *hctx; in queue_set_hctx_shared() local
2984 queue_for_each_hw_ctx(q, hctx, i) { in queue_set_hctx_shared()
2986 hctx->flags |= BLK_MQ_F_TAG_QUEUE_SHARED; in queue_set_hctx_shared()
2988 blk_mq_tag_idle(hctx); in queue_set_hctx_shared()
2989 hctx->flags &= ~BLK_MQ_F_TAG_QUEUE_SHARED; in queue_set_hctx_shared()
3081 struct blk_mq_hw_ctx *hctx, *next; in blk_mq_release() local
3084 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_release()
3085 WARN_ON_ONCE(hctx && list_empty(&hctx->hctx_list)); in blk_mq_release()
3088 list_for_each_entry_safe(hctx, next, &q->unused_hctx_list, hctx_list) { in blk_mq_release()
3089 list_del_init(&hctx->hctx_list); in blk_mq_release()
3090 kobject_put(&hctx->kobj); in blk_mq_release()
3168 struct blk_mq_hw_ctx *hctx = NULL, *tmp; in blk_mq_alloc_and_init_hctx() local
3174 hctx = tmp; in blk_mq_alloc_and_init_hctx()
3178 if (hctx) in blk_mq_alloc_and_init_hctx()
3179 list_del_init(&hctx->hctx_list); in blk_mq_alloc_and_init_hctx()
3182 if (!hctx) in blk_mq_alloc_and_init_hctx()
3183 hctx = blk_mq_alloc_hctx(q, set, node); in blk_mq_alloc_and_init_hctx()
3184 if (!hctx) in blk_mq_alloc_and_init_hctx()
3187 if (blk_mq_init_hctx(q, set, hctx, hctx_idx)) in blk_mq_alloc_and_init_hctx()
3190 return hctx; in blk_mq_alloc_and_init_hctx()
3193 kobject_put(&hctx->kobj); in blk_mq_alloc_and_init_hctx()
3224 struct blk_mq_hw_ctx *hctx; in blk_mq_realloc_hw_ctxs() local
3235 hctx = blk_mq_alloc_and_init_hctx(set, q, i, node); in blk_mq_realloc_hw_ctxs()
3236 if (hctx) { in blk_mq_realloc_hw_ctxs()
3239 hctxs[i] = hctx; in blk_mq_realloc_hw_ctxs()
3263 struct blk_mq_hw_ctx *hctx = hctxs[j]; in blk_mq_realloc_hw_ctxs() local
3265 if (hctx) { in blk_mq_realloc_hw_ctxs()
3266 blk_mq_exit_hctx(q, set, hctx, j); in blk_mq_realloc_hw_ctxs()
3594 struct blk_mq_hw_ctx *hctx; in blk_mq_update_nr_requests() local
3607 queue_for_each_hw_ctx(q, hctx, i) { in blk_mq_update_nr_requests()
3608 if (!hctx->tags) in blk_mq_update_nr_requests()
3614 if (!hctx->sched_tags) { in blk_mq_update_nr_requests()
3615 ret = blk_mq_tag_update_depth(hctx, &hctx->tags, nr, in blk_mq_update_nr_requests()
3620 ret = blk_mq_tag_update_depth(hctx, &hctx->sched_tags, in blk_mq_update_nr_requests()
3626 q->elevator->type->ops.depth_updated(hctx); in blk_mq_update_nr_requests()
3907 struct blk_mq_hw_ctx *hctx, blk_qc_t cookie) in blk_mq_poll_hybrid() argument
3915 rq = blk_mq_tag_to_rq(hctx->tags, blk_qc_t_to_tag(cookie)); in blk_mq_poll_hybrid()
3917 rq = blk_mq_tag_to_rq(hctx->sched_tags, blk_qc_t_to_tag(cookie)); in blk_mq_poll_hybrid()
3945 struct blk_mq_hw_ctx *hctx; in blk_poll() local
3955 hctx = q->queue_hw_ctx[blk_qc_t_to_queue_num(cookie)]; in blk_poll()
3964 if (blk_mq_poll_hybrid(q, hctx, cookie)) in blk_poll()
3967 hctx->poll_considered++; in blk_poll()
3973 hctx->poll_invoked++; in blk_poll()
3975 ret = q->mq_ops->poll(hctx); in blk_poll()
3977 hctx->poll_success++; in blk_poll()
4006 struct blk_mq_hw_ctx *hctx; in blk_mq_cancel_work_sync() local
4011 queue_for_each_hw_ctx(q, hctx, i) in blk_mq_cancel_work_sync()
4012 cancel_delayed_work_sync(&hctx->run_work); in blk_mq_cancel_work_sync()