95 			   struct blk_flush_queue *fq);
166 				   struct blk_flush_queue *fq,  in blk_flush_complete_seq()  argument
170 	struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];  in blk_flush_complete_seq()
186 			fq->flush_pending_since = jiffies;  in blk_flush_complete_seq()
191 		list_move_tail(&rq->flush.list, &fq->flush_data_in_flight);  in blk_flush_complete_seq()
215 	kicked = blk_kick_flush(q, fq);  in blk_flush_complete_seq()
226 	struct blk_flush_queue *fq = blk_get_flush_queue(q, flush_rq->mq_ctx);  in flush_end_io()  local
229 		spin_lock_irqsave(&fq->mq_flush_lock, flags);  in flush_end_io()
233 	running = &fq->flush_queue[fq->flush_running_idx];  in flush_end_io()
234 	BUG_ON(fq->flush_pending_idx == fq->flush_running_idx);  in flush_end_io()
237 	fq->flush_running_idx ^= 1;  in flush_end_io()
247 		queued |= blk_flush_complete_seq(rq, fq, seq, error);  in flush_end_io()
261 	if (queued || fq->flush_queue_delayed) {  in flush_end_io()
265 	fq->flush_queue_delayed = 0;  in flush_end_io()
267 		spin_unlock_irqrestore(&fq->mq_flush_lock, flags);  in flush_end_io()
284 static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)  in blk_kick_flush()  argument
286 	struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];  in blk_kick_flush()
289 	struct request *flush_rq = fq->flush_rq;  in blk_kick_flush()
292 	if (fq->flush_pending_idx != fq->flush_running_idx || list_empty(pending))  in blk_kick_flush()
296 	if (!list_empty(&fq->flush_data_in_flight) &&  in blk_kick_flush()
298 			fq->flush_pending_since + FLUSH_PENDING_TIMEOUT))  in blk_kick_flush()
305 	fq->flush_pending_idx ^= 1;  in blk_kick_flush()
329 	struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);  in flush_data_end_io()  local
335 	if (blk_flush_complete_seq(rq, fq, REQ_FSEQ_DATA, error))  in flush_data_end_io()
345 	struct blk_flush_queue *fq = blk_get_flush_queue(q, ctx);  in mq_flush_data_end_io()  local
353 	spin_lock_irqsave(&fq->mq_flush_lock, flags);  in mq_flush_data_end_io()
354 	if (blk_flush_complete_seq(rq, fq, REQ_FSEQ_DATA, error))  in mq_flush_data_end_io()
356 	spin_unlock_irqrestore(&fq->mq_flush_lock, flags);  in mq_flush_data_end_io()
376 	struct blk_flush_queue *fq = blk_get_flush_queue(q, rq->mq_ctx);  in blk_insert_flush()  local
427 		spin_lock_irq(&fq->mq_flush_lock);  in blk_insert_flush()
428 		blk_flush_complete_seq(rq, fq, REQ_FSEQ_ACTIONS & ~policy, 0);  in blk_insert_flush()
429 		spin_unlock_irq(&fq->mq_flush_lock);  in blk_insert_flush()
434 	blk_flush_complete_seq(rq, fq, REQ_FSEQ_ACTIONS & ~policy, 0);  in blk_insert_flush()
493 	struct blk_flush_queue *fq;  in blk_alloc_flush_queue()  local
496 	fq = kzalloc_node(sizeof(*fq), GFP_KERNEL, node);  in blk_alloc_flush_queue()
497 	if (!fq)  in blk_alloc_flush_queue()
501 		spin_lock_init(&fq->mq_flush_lock);  in blk_alloc_flush_queue()
505 	fq->flush_rq = kzalloc_node(rq_sz, GFP_KERNEL, node);  in blk_alloc_flush_queue()
506 	if (!fq->flush_rq)  in blk_alloc_flush_queue()
509 	INIT_LIST_HEAD(&fq->flush_queue[0]);  in blk_alloc_flush_queue()
510 	INIT_LIST_HEAD(&fq->flush_queue[1]);  in blk_alloc_flush_queue()
511 	INIT_LIST_HEAD(&fq->flush_data_in_flight);  in blk_alloc_flush_queue()
513 	return fq;  in blk_alloc_flush_queue()
516 	kfree(fq);  in blk_alloc_flush_queue()
521 void blk_free_flush_queue(struct blk_flush_queue *fq)  in blk_free_flush_queue()  argument
524 	if (!fq)  in blk_free_flush_queue()
527 	kfree(fq->flush_rq);  in blk_free_flush_queue()
528 	kfree(fq);  in blk_free_flush_queue()