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block: Remove callback typedefs for blk_mq_ops

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No need to define typedefs for the callbacks, because there is not a
single user except blk_mq_ops.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Daniel Wagner 2020-07-28 18:20:36 +02:00 committed by Jens Axboe
parent 08c875cbf4
commit 0516c2f6ae
1 changed files with 18 additions and 32 deletions
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50
include/linux/blk-mq.h
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@ -267,27 +267,9 @@ struct blk_mq_queue_data {
bool last;
};
typedef blk_status_t (queue_rq_fn)(struct blk_mq_hw_ctx *,
const struct blk_mq_queue_data *);
typedef void (commit_rqs_fn)(struct blk_mq_hw_ctx *);
typedef bool (get_budget_fn)(struct request_queue *);
typedef void (put_budget_fn)(struct request_queue *);
typedef enum blk_eh_timer_return (timeout_fn)(struct request *, bool);
typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
typedef int (init_request_fn)(struct blk_mq_tag_set *set, struct request *,
unsigned int, unsigned int);
typedef void (exit_request_fn)(struct blk_mq_tag_set *set, struct request *,
unsigned int);
typedef bool (busy_iter_fn)(struct blk_mq_hw_ctx *, struct request *, void *,
bool);
typedef bool (busy_tag_iter_fn)(struct request *, void *, bool);
typedef int (poll_fn)(struct blk_mq_hw_ctx *);
typedef int (map_queues_fn)(struct blk_mq_tag_set *set);
typedef bool (busy_fn)(struct request_queue *);
typedef void (complete_fn)(struct request *);
typedef void (cleanup_rq_fn)(struct request *);
/**
* struct blk_mq_ops - Callback functions that implements block driver
@ -297,7 +279,8 @@ struct blk_mq_ops {
/**
* @queue_rq: Queue a new request from block IO.
*/
queue_rq_fn *queue_rq;
blk_status_t (*queue_rq)(struct blk_mq_hw_ctx *,
const struct blk_mq_queue_data *);
/**
* @commit_rqs: If a driver uses bd->last to judge when to submit
@ -306,7 +289,7 @@ struct blk_mq_ops {
* purpose of kicking the hardware (which the last request otherwise
* would have done).
*/
commit_rqs_fn *commit_rqs;
void (*commit_rqs)(struct blk_mq_hw_ctx *);
/**
* @get_budget: Reserve budget before queue request, once .queue_rq is
@ -314,37 +297,38 @@ struct blk_mq_ops {
* reserved budget. Also we have to handle failure case
* of .get_budget for avoiding I/O deadlock.
*/
get_budget_fn *get_budget;
bool (*get_budget)(struct request_queue *);
/**
* @put_budget: Release the reserved budget.
*/
put_budget_fn *put_budget;
void (*put_budget)(struct request_queue *);
/**
* @timeout: Called on request timeout.
*/
timeout_fn *timeout;
enum blk_eh_timer_return (*timeout)(struct request *, bool);
/**
* @poll: Called to poll for completion of a specific tag.
*/
poll_fn *poll;
int (*poll)(struct blk_mq_hw_ctx *);
/**
* @complete: Mark the request as complete.
*/
complete_fn *complete;
void (*complete)(struct request *);
/**
* @init_hctx: Called when the block layer side of a hardware queue has
* been set up, allowing the driver to allocate/init matching
* structures.
*/
init_hctx_fn *init_hctx;
int (*init_hctx)(struct blk_mq_hw_ctx *, void *, unsigned int);
/**
* @exit_hctx: Ditto for exit/teardown.
*/
exit_hctx_fn *exit_hctx;
void (*exit_hctx)(struct blk_mq_hw_ctx *, unsigned int);
/**
* @init_request: Called for every command allocated by the block layer
@ -353,11 +337,13 @@ struct blk_mq_ops {
* Tag greater than or equal to queue_depth is for setting up
* flush request.
*/
init_request_fn *init_request;
int (*init_request)(struct blk_mq_tag_set *set, struct request *,
unsigned int, unsigned int);
/**
* @exit_request: Ditto for exit/teardown.
*/
exit_request_fn *exit_request;
void (*exit_request)(struct blk_mq_tag_set *set, struct request *,
unsigned int);
/**
* @initialize_rq_fn: Called from inside blk_get_request().
@ -368,18 +354,18 @@ struct blk_mq_ops {
* @cleanup_rq: Called before freeing one request which isn't completed
* yet, and usually for freeing the driver private data.
*/
cleanup_rq_fn *cleanup_rq;
void (*cleanup_rq)(struct request *);
/**
* @busy: If set, returns whether or not this queue currently is busy.
*/
busy_fn *busy;
bool (*busy)(struct request_queue *);
/**
* @map_queues: This allows drivers specify their own queue mapping by
* overriding the setup-time function that builds the mq_map.
*/
map_queues_fn *map_queues;
int (*map_queues)(struct blk_mq_tag_set *set);
#ifdef CONFIG_BLK_DEBUG_FS
/**