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authorChristoph Hellwig <hch@lst.de>2017-10-03 11:47:00 +0300
committerJens Axboe <axboe@kernel.dk>2017-10-03 17:43:04 +0300
commit9c9883744dda1cc38339a448dd8435140537027e (patch)
treef12a16e699415343d5757d7b118dc59f6a295d3d /block/blk.h
parent7cb04004fa371a626c1a5ebe6d977f70285759ed (diff)
downloadlinux-9c9883744dda1cc38339a448dd8435140537027e.tar.xz
block: move __elv_next_request to blk-core.c
No need to have this helper inline in a header. Also drop the __ prefix. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h39
1 files changed, 0 insertions, 39 deletions
diff --git a/block/blk.h b/block/blk.h
index fcb9775b997d..fda5a4632aba 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -148,45 +148,6 @@ static inline void blk_clear_rq_complete(struct request *rq)
void blk_insert_flush(struct request *rq);
-static inline struct request *__elv_next_request(struct request_queue *q)
-{
- struct request *rq;
- struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);
-
- WARN_ON_ONCE(q->mq_ops);
-
- while (1) {
- if (!list_empty(&q->queue_head)) {
- rq = list_entry_rq(q->queue_head.next);
- return rq;
- }
-
- /*
- * Flush request is running and flush request isn't queueable
- * in the drive, we can hold the queue till flush request is
- * finished. Even we don't do this, driver can't dispatch next
- * requests and will requeue them. And this can improve
- * throughput too. For example, we have request flush1, write1,
- * flush 2. flush1 is dispatched, then queue is hold, write1
- * isn't inserted to queue. After flush1 is finished, flush2
- * will be dispatched. Since disk cache is already clean,
- * flush2 will be finished very soon, so looks like flush2 is
- * folded to flush1.
- * Since the queue is hold, a flag is set to indicate the queue
- * should be restarted later. Please see flush_end_io() for
- * details.
- */
- if (fq->flush_pending_idx != fq->flush_running_idx &&
- !queue_flush_queueable(q)) {
- fq->flush_queue_delayed = 1;
- return NULL;
- }
- if (unlikely(blk_queue_bypass(q)) ||
- !q->elevator->type->ops.sq.elevator_dispatch_fn(q, 0))
- return NULL;
- }
-}
-
static inline void elv_activate_rq(struct request_queue *q, struct request *rq)
{
struct elevator_queue *e = q->elevator;