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block: remove ->poll_fn

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This was intended to support users like nvme multipath, but is just
getting in the way and adding another indirect call.

Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2018-12-02 17:46:26 +01:00
committed by Jens Axboe
parent 9d6610b76f
commit 529262d56d
3 changed files with 19 additions and 30 deletions
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2
include/linux/blkdev.h
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@@ -283,7 +283,6 @@ static inline unsigned short req_get_ioprio(struct request *req)
struct blk_queue_ctx;
typedef blk_qc_t (make_request_fn) (struct request_queue *q, struct bio *bio);
typedef int (poll_q_fn) (struct request_queue *q, blk_qc_t, bool spin);
struct bio_vec;
typedef int (dma_drain_needed_fn)(struct request *);
@@ -401,7 +400,6 @@ struct request_queue {
struct rq_qos *rq_qos;
make_request_fn *make_request_fn;
poll_q_fn *poll_fn;
dma_drain_needed_fn *dma_drain_needed;
const struct blk_mq_ops *mq_ops;