block: Add interface to abort queued requests

[mirror_ubuntu-jammy-kernel.git] / block / elevator.c

diff --git a/block/elevator.c b/block/elevator.c
index a91fc59edd017f7ac3cdbe8626f0b95c56dd7c2d..8a74eedc3530d14312993a32f0a5ead431e675b0 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -914,6 +914,19 @@ int elv_may_queue(struct request_queue *q, int rw)
        return ELV_MQUEUE_MAY;
 }
 
+void elv_abort_queue(struct request_queue *q)
+{
+       struct request *rq;
+
+       while (!list_empty(&q->queue_head)) {
+               rq = list_entry_rq(q->queue_head.next);
+               rq->cmd_flags |= REQ_QUIET;
+               blk_add_trace_rq(q, rq, BLK_TA_ABORT);
+               end_queued_request(rq, 0);
+       }
+}
+EXPORT_SYMBOL(elv_abort_queue);
+
 void elv_completed_request(struct request_queue *q, struct request *rq)
 {
        elevator_t *e = q->elevator;