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-rw-r--r--block/blk-mq.c20
-rw-r--r--include/linux/blk-mq.h1
2 files changed, 21 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index e73a5dd89fc4..261ccd89e15d 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -539,6 +539,26 @@ void blk_mq_kick_requeue_list(struct request_queue *q)
}
EXPORT_SYMBOL(blk_mq_kick_requeue_list);
+void blk_mq_abort_requeue_list(struct request_queue *q)
+{
+ unsigned long flags;
+ LIST_HEAD(rq_list);
+
+ spin_lock_irqsave(&q->requeue_lock, flags);
+ list_splice_init(&q->requeue_list, &rq_list);
+ spin_unlock_irqrestore(&q->requeue_lock, flags);
+
+ while (!list_empty(&rq_list)) {
+ struct request *rq;
+
+ rq = list_first_entry(&rq_list, struct request, queuelist);
+ list_del_init(&rq->queuelist);
+ rq->errors = -EIO;
+ blk_mq_end_request(rq, rq->errors);
+ }
+}
+EXPORT_SYMBOL(blk_mq_abort_requeue_list);
+
static inline bool is_flush_request(struct request *rq,
struct blk_flush_queue *fq, unsigned int tag)
{
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 18684e0bdb8a..5735e7130d63 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -203,6 +203,7 @@ void blk_mq_requeue_request(struct request *rq);
void blk_mq_add_to_requeue_list(struct request *rq, bool at_head);
void blk_mq_cancel_requeue_work(struct request_queue *q);
void blk_mq_kick_requeue_list(struct request_queue *q);
+void blk_mq_abort_requeue_list(struct request_queue *q);
void blk_mq_complete_request(struct request *rq);
void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);