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acrn-kernel
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[PATCH] Drop useless bio passing in may_queue/set_request API 

It's not needed for anything, so kill the bio passing.

Signed-off-by: Jens Axboe <axboe@suse.de>
This commit is contained in:
Jens Axboe 2006-07-28 09:32:57 +02:00 committed by Jens Axboe
parent cdd6026217
commit cb78b285c8
5 changed files with 15 additions and 18 deletions
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2
block/as-iosched.c
View File

@ -1284,7 +1284,7 @@ static void as_work_handler(void *data)
spin_unlock_irqrestore(q->queue_lock, flags);
}
static int as_may_queue(request_queue_t *q, int rw, struct bio *bio)
static int as_may_queue(request_queue_t *q, int rw)
{
int ret = ELV_MQUEUE_MAY;
struct as_data *ad = q->elevator->elevator_data;

5
block/cfq-iosched.c
View File

@ -1752,7 +1752,7 @@ __cfq_may_queue(struct cfq_data *cfqd, struct cfq_queue *cfqq,
return ELV_MQUEUE_MAY;
}
static int cfq_may_queue(request_queue_t *q, int rw, struct bio *bio)
static int cfq_may_queue(request_queue_t *q, int rw)
{
struct cfq_data *cfqd = q->elevator->elevator_data;
struct task_struct *tsk = current;
@ -1817,8 +1817,7 @@ static void cfq_put_request(request_queue_t *q, struct request *rq)
* Allocate cfq data structures associated with this request.
*/
static int
cfq_set_request(request_queue_t *q, struct request *rq, struct bio *bio,
gfp_t gfp_mask)
cfq_set_request(request_queue_t *q, struct request *rq, gfp_t gfp_mask)
{
struct cfq_data *cfqd = q->elevator->elevator_data;
struct task_struct *tsk = current;

9
block/elevator.c
View File

@ -796,13 +796,12 @@ struct request *elv_former_request(request_queue_t *q, struct request *rq)
return NULL;
}
int elv_set_request(request_queue_t *q, struct request *rq, struct bio *bio,
gfp_t gfp_mask)
int elv_set_request(request_queue_t *q, struct request *rq, gfp_t gfp_mask)
{
elevator_t *e = q->elevator;
if (e->ops->elevator_set_req_fn)
return e->ops->elevator_set_req_fn(q, rq, bio, gfp_mask);
return e->ops->elevator_set_req_fn(q, rq, gfp_mask);
rq->elevator_private = NULL;
return 0;
@ -816,12 +815,12 @@ void elv_put_request(request_queue_t *q, struct request *rq)
e->ops->elevator_put_req_fn(q, rq);
}
int elv_may_queue(request_queue_t *q, int rw, struct bio *bio)
int elv_may_queue(request_queue_t *q, int rw)
{
elevator_t *e = q->elevator;
if (e->ops->elevator_may_queue_fn)
return e->ops->elevator_may_queue_fn(q, rw, bio);
return e->ops->elevator_may_queue_fn(q, rw);
return ELV_MQUEUE_MAY;
}

9
block/ll_rw_blk.c
View File

@ -2003,8 +2003,7 @@ static inline void blk_free_request(request_queue_t *q, struct request *rq)
}
static inline struct request *
blk_alloc_request(request_queue_t *q, int rw, struct bio *bio,
int priv, gfp_t gfp_mask)
blk_alloc_request(request_queue_t *q, int rw, int priv, gfp_t gfp_mask)
{
struct request *rq = mempool_alloc(q->rq.rq_pool, gfp_mask);
@ -2018,7 +2017,7 @@ blk_alloc_request(request_queue_t *q, int rw, struct bio *bio,
rq->cmd_flags = rw | REQ_ALLOCED;
if (priv) {
if (unlikely(elv_set_request(q, rq, bio, gfp_mask))) {
if (unlikely(elv_set_request(q, rq, gfp_mask))) {
mempool_free(rq, q->rq.rq_pool);
return NULL;
}
@ -2109,7 +2108,7 @@ static struct request *get_request(request_queue_t *q, int rw, struct bio *bio,
struct io_context *ioc = NULL;
int may_queue, priv;
may_queue = elv_may_queue(q, rw, bio);
may_queue = elv_may_queue(q, rw);
if (may_queue == ELV_MQUEUE_NO)
goto rq_starved;
@ -2157,7 +2156,7 @@ static struct request *get_request(request_queue_t *q, int rw, struct bio *bio,
spin_unlock_irq(q->queue_lock);
rq = blk_alloc_request(q, rw, bio, priv, gfp_mask);
rq = blk_alloc_request(q, rw, priv, gfp_mask);
if (unlikely(!rq)) {
/*
* Allocation failed presumably due to memory. Undo anything

8
include/linux/elevator.h
View File

@ -14,9 +14,9 @@ typedef void (elevator_add_req_fn) (request_queue_t *, struct request *);
typedef int (elevator_queue_empty_fn) (request_queue_t *);
typedef struct request *(elevator_request_list_fn) (request_queue_t *, struct request *);
typedef void (elevator_completed_req_fn) (request_queue_t *, struct request *);
typedef int (elevator_may_queue_fn) (request_queue_t *, int, struct bio *);
typedef int (elevator_may_queue_fn) (request_queue_t *, int);
typedef int (elevator_set_req_fn) (request_queue_t *, struct request *, struct bio *, gfp_t);
typedef int (elevator_set_req_fn) (request_queue_t *, struct request *, gfp_t);
typedef void (elevator_put_req_fn) (request_queue_t *, struct request *);
typedef void (elevator_activate_req_fn) (request_queue_t *, struct request *);
typedef void (elevator_deactivate_req_fn) (request_queue_t *, struct request *);
@ -105,9 +105,9 @@ extern struct request *elv_former_request(request_queue_t *, struct request *);
extern struct request *elv_latter_request(request_queue_t *, struct request *);
extern int elv_register_queue(request_queue_t *q);
extern void elv_unregister_queue(request_queue_t *q);
extern int elv_may_queue(request_queue_t *, int, struct bio *);
extern int elv_may_queue(request_queue_t *, int);
extern void elv_completed_request(request_queue_t *, struct request *);
extern int elv_set_request(request_queue_t *, struct request *, struct bio *, gfp_t);
extern int elv_set_request(request_queue_t *, struct request *, gfp_t);
extern void elv_put_request(request_queue_t *, struct request *);
/*