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authorChristoph Hellwig <hch@lst.de>2017-06-16 19:15:19 +0300
committerJens Axboe <axboe@kernel.dk>2017-06-18 19:08:55 +0300
commitd2c0d3832469b947ca158e8977e66e8e2e64d8dd (patch)
tree4a6619b7d770e5f71675a3d4e100e3009a4d9c5f /block/blk-mq-sched.c
parent6e15cf2a0bc1a75237ed8ae6293db707e471bb81 (diff)
downloadlinux-d2c0d3832469b947ca158e8977e66e8e2e64d8dd.tar.xz
blk-mq: move blk_mq_sched_{get,put}_request to blk-mq.c
Having them out of line in blk-mq-sched.c just makes the code flow unnecessarily complicated. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq-sched.c')
-rw-r--r--block/blk-mq-sched.c69
1 files changed, 2 insertions, 67 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index c4e2afb9d12d..62db188595dc 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -58,8 +58,8 @@ static void __blk_mq_sched_assign_ioc(struct request_queue *q,
rq->elv.icq = NULL;
}
-static void blk_mq_sched_assign_ioc(struct request_queue *q,
- struct request *rq, struct bio *bio)
+void blk_mq_sched_assign_ioc(struct request_queue *q, struct request *rq,
+ struct bio *bio)
{
struct io_context *ioc;
@@ -68,71 +68,6 @@ static void blk_mq_sched_assign_ioc(struct request_queue *q,
__blk_mq_sched_assign_ioc(q, rq, bio, ioc);
}
-struct request *blk_mq_sched_get_request(struct request_queue *q,
- struct bio *bio,
- unsigned int op,
- struct blk_mq_alloc_data *data)
-{
- struct elevator_queue *e = q->elevator;
- struct request *rq;
-
- blk_queue_enter_live(q);
- data->q = q;
- if (likely(!data->ctx))
- data->ctx = blk_mq_get_ctx(q);
- if (likely(!data->hctx))
- data->hctx = blk_mq_map_queue(q, data->ctx->cpu);
-
- if (e) {
- data->flags |= BLK_MQ_REQ_INTERNAL;
-
- /*
- * Flush requests are special and go directly to the
- * dispatch list.
- */
- if (!op_is_flush(op) && e->type->ops.mq.get_request) {
- rq = e->type->ops.mq.get_request(q, op, data);
- if (rq)
- rq->rq_flags |= RQF_QUEUED;
- } else
- rq = __blk_mq_alloc_request(data, op);
- } else {
- rq = __blk_mq_alloc_request(data, op);
- }
-
- if (rq) {
- if (!op_is_flush(op)) {
- rq->elv.icq = NULL;
- if (e && e->type->icq_cache)
- blk_mq_sched_assign_ioc(q, rq, bio);
- }
- data->hctx->queued++;
- return rq;
- }
-
- blk_queue_exit(q);
- return NULL;
-}
-
-void blk_mq_sched_put_request(struct request *rq)
-{
- struct request_queue *q = rq->q;
- struct elevator_queue *e = q->elevator;
-
- if (rq->rq_flags & RQF_ELVPRIV) {
- blk_mq_sched_put_rq_priv(rq->q, rq);
- if (rq->elv.icq) {
- put_io_context(rq->elv.icq->ioc);
- rq->elv.icq = NULL;
- }
- }
-
- if ((rq->rq_flags & RQF_QUEUED) && e && e->type->ops.mq.put_request)
- e->type->ops.mq.put_request(rq);
- else
- blk_mq_finish_request(rq);
-}
-
void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
{
struct request_queue *q = hctx->queue;