block: remove elv_abort_queue and blk_abort_flushes

elv_abort_queue has no callers, and blk_abort_flushes is only called by
elv_abort_queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/block/blk-flush.c b/block/blk-flush.c
index 8ffee4b..3cb5e9e 100644 (file)
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -421,44 +421,6 @@ void blk_insert_flush(struct request *rq)
        blk_flush_complete_seq(rq, REQ_FSEQ_ACTIONS & ~policy, 0);
 }
 
-/**
- * blk_abort_flushes - @q is being aborted, abort flush requests
- * @q: request_queue being aborted
- *
- * To be called from elv_abort_queue().  @q is being aborted.  Prepare all
- * FLUSH/FUA requests for abortion.
- *
- * CONTEXT:
- * spin_lock_irq(q->queue_lock)
- */
-void blk_abort_flushes(struct request_queue *q)
-{
-       struct request *rq, *n;
-       int i;
-
-       /*
-        * Requests in flight for data are already owned by the dispatch
-        * queue or the device driver.  Just restore for normal completion.
-        */
-       list_for_each_entry_safe(rq, n, &q->flush_data_in_flight, flush.list) {
-               list_del_init(&rq->flush.list);
-               blk_flush_restore_request(rq);
-       }
-
-       /*
-        * We need to give away requests on flush queues.  Restore for
-        * normal completion and put them on the dispatch queue.
-        */
-       for (i = 0; i < ARRAY_SIZE(q->flush_queue); i++) {
-               list_for_each_entry_safe(rq, n, &q->flush_queue[i],
-                                        flush.list) {
-                       list_del_init(&rq->flush.list);
-                       blk_flush_restore_request(rq);
-                       list_add_tail(&rq->queuelist, &q->queue_head);
-               }
-       }
-}
-
 /**
  * blkdev_issue_flush - queue a flush
  * @bdev:      blockdev to issue flush for

diff --git a/block/blk.h b/block/blk.h
index 45385e9..6748c4f 100644 (file)
--- a/block/blk.h
+++ b/block/blk.h
@@ -84,7 +84,6 @@ static inline void blk_clear_rq_complete(struct request *rq)
 #define ELV_ON_HASH(rq) ((rq)->cmd_flags & REQ_HASHED)
 
 void blk_insert_flush(struct request *rq);
-void blk_abort_flushes(struct request_queue *q);
 
 static inline struct request *__elv_next_request(struct request_queue *q)
 {

diff --git a/block/elevator.c b/block/elevator.c
index f35eddd..34bded1 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -729,26 +729,6 @@ 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;
-
-       blk_abort_flushes(q);
-
-       while (!list_empty(&q->queue_head)) {
-               rq = list_entry_rq(q->queue_head.next);
-               rq->cmd_flags |= REQ_QUIET;
-               trace_block_rq_abort(q, rq);
-               /*
-                * Mark this request as started so we don't trigger
-                * any debug logic in the end I/O path.
-                */
-               blk_start_request(rq);
-               __blk_end_request_all(rq, -EIO);
-       }
-}
-EXPORT_SYMBOL(elv_abort_queue);
-
 void elv_completed_request(struct request_queue *q, struct request *rq)
 {
        struct elevator_queue *e = q->elevator;

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 4ff262e..e2a6bd7 100644 (file)
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -133,7 +133,6 @@ extern struct request *elv_latter_request(struct request_queue *, struct request
 extern int elv_register_queue(struct request_queue *q);
 extern void elv_unregister_queue(struct request_queue *q);
 extern int elv_may_queue(struct request_queue *, int);
-extern void elv_abort_queue(struct request_queue *);
 extern void elv_completed_request(struct request_queue *, struct request *);
 extern int elv_set_request(struct request_queue *q, struct request *rq,
                           struct bio *bio, gfp_t gfp_mask);