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authorJens Axboe <axboe@fb.com>2016-12-10 15:13:59 -0700
committerJens Axboe <axboe@fb.com>2017-01-17 10:03:33 -0700
commitc51ca6cf545bc51ad38bd50816bde37c647d608d (patch)
tree79e0999ed9e6f275be32d261533107ee31ed9436 /block/elevator.c
parentc5082b70adfe8e1ea1cf4a8eff92c9f260e364d2 (diff)
downloadlinux-0-day-c51ca6cf545bc51ad38bd50816bde37c647d608d.tar.gz
block: move existing elevator ops to union
Prep patch for adding MQ ops as well, since doing anon unions with named initializers doesn't work on older compilers. Signed-off-by: Jens Axboe <axboe@fb.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Omar Sandoval <osandov@fb.com>
Diffstat (limited to 'block/elevator.c')
-rw-r--r--block/elevator.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/block/elevator.c b/block/elevator.c
index 40f0c04..022a268 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -58,8 +58,8 @@ static int elv_iosched_allow_bio_merge(struct request *rq, struct bio *bio)
struct request_queue *q = rq->q;
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_allow_bio_merge_fn)
- return e->type->ops.elevator_allow_bio_merge_fn(q, rq, bio);
+ if (e->type->ops.sq.elevator_allow_bio_merge_fn)
+ return e->type->ops.sq.elevator_allow_bio_merge_fn(q, rq, bio);
return 1;
}
@@ -224,7 +224,7 @@ int elevator_init(struct request_queue *q, char *name)
}
}
- err = e->ops.elevator_init_fn(q, e);
+ err = e->ops.sq.elevator_init_fn(q, e);
if (err)
elevator_put(e);
return err;
@@ -234,8 +234,8 @@ EXPORT_SYMBOL(elevator_init);
void elevator_exit(struct elevator_queue *e)
{
mutex_lock(&e->sysfs_lock);
- if (e->type->ops.elevator_exit_fn)
- e->type->ops.elevator_exit_fn(e);
+ if (e->type->ops.sq.elevator_exit_fn)
+ e->type->ops.sq.elevator_exit_fn(e);
mutex_unlock(&e->sysfs_lock);
kobject_put(&e->kobj);
@@ -443,8 +443,8 @@ int elv_merge(struct request_queue *q, struct request **req, struct bio *bio)
return ELEVATOR_BACK_MERGE;
}
- if (e->type->ops.elevator_merge_fn)
- return e->type->ops.elevator_merge_fn(q, req, bio);
+ if (e->type->ops.sq.elevator_merge_fn)
+ return e->type->ops.sq.elevator_merge_fn(q, req, bio);
return ELEVATOR_NO_MERGE;
}
@@ -495,8 +495,8 @@ void elv_merged_request(struct request_queue *q, struct request *rq, int type)
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_merged_fn)
- e->type->ops.elevator_merged_fn(q, rq, type);
+ if (e->type->ops.sq.elevator_merged_fn)
+ e->type->ops.sq.elevator_merged_fn(q, rq, type);
if (type == ELEVATOR_BACK_MERGE)
elv_rqhash_reposition(q, rq);
@@ -510,8 +510,8 @@ void elv_merge_requests(struct request_queue *q, struct request *rq,
struct elevator_queue *e = q->elevator;
const int next_sorted = next->rq_flags & RQF_SORTED;
- if (next_sorted && e->type->ops.elevator_merge_req_fn)
- e->type->ops.elevator_merge_req_fn(q, rq, next);
+ if (next_sorted && e->type->ops.sq.elevator_merge_req_fn)
+ e->type->ops.sq.elevator_merge_req_fn(q, rq, next);
elv_rqhash_reposition(q, rq);
@@ -528,8 +528,8 @@ void elv_bio_merged(struct request_queue *q, struct request *rq,
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_bio_merged_fn)
- e->type->ops.elevator_bio_merged_fn(q, rq, bio);
+ if (e->type->ops.sq.elevator_bio_merged_fn)
+ e->type->ops.sq.elevator_bio_merged_fn(q, rq, bio);
}
#ifdef CONFIG_PM
@@ -578,7 +578,7 @@ void elv_drain_elevator(struct request_queue *q)
lockdep_assert_held(q->queue_lock);
- while (q->elevator->type->ops.elevator_dispatch_fn(q, 1))
+ while (q->elevator->type->ops.sq.elevator_dispatch_fn(q, 1))
;
if (q->nr_sorted && printed++ < 10) {
printk(KERN_ERR "%s: forced dispatching is broken "
@@ -653,7 +653,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
* rq cannot be accessed after calling
* elevator_add_req_fn.
*/
- q->elevator->type->ops.elevator_add_req_fn(q, rq);
+ q->elevator->type->ops.sq.elevator_add_req_fn(q, rq);
break;
case ELEVATOR_INSERT_FLUSH:
@@ -682,8 +682,8 @@ struct request *elv_latter_request(struct request_queue *q, struct request *rq)
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_latter_req_fn)
- return e->type->ops.elevator_latter_req_fn(q, rq);
+ if (e->type->ops.sq.elevator_latter_req_fn)
+ return e->type->ops.sq.elevator_latter_req_fn(q, rq);
return NULL;
}
@@ -691,8 +691,8 @@ struct request *elv_former_request(struct request_queue *q, struct request *rq)
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_former_req_fn)
- return e->type->ops.elevator_former_req_fn(q, rq);
+ if (e->type->ops.sq.elevator_former_req_fn)
+ return e->type->ops.sq.elevator_former_req_fn(q, rq);
return NULL;
}
@@ -701,8 +701,8 @@ int elv_set_request(struct request_queue *q, struct request *rq,
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_set_req_fn)
- return e->type->ops.elevator_set_req_fn(q, rq, bio, gfp_mask);
+ if (e->type->ops.sq.elevator_set_req_fn)
+ return e->type->ops.sq.elevator_set_req_fn(q, rq, bio, gfp_mask);
return 0;
}
@@ -710,16 +710,16 @@ void elv_put_request(struct request_queue *q, struct request *rq)
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_put_req_fn)
- e->type->ops.elevator_put_req_fn(rq);
+ if (e->type->ops.sq.elevator_put_req_fn)
+ e->type->ops.sq.elevator_put_req_fn(rq);
}
int elv_may_queue(struct request_queue *q, unsigned int op)
{
struct elevator_queue *e = q->elevator;
- if (e->type->ops.elevator_may_queue_fn)
- return e->type->ops.elevator_may_queue_fn(q, op);
+ if (e->type->ops.sq.elevator_may_queue_fn)
+ return e->type->ops.sq.elevator_may_queue_fn(q, op);
return ELV_MQUEUE_MAY;
}
@@ -734,8 +734,8 @@ void elv_completed_request(struct request_queue *q, struct request *rq)
if (blk_account_rq(rq)) {
q->in_flight[rq_is_sync(rq)]--;
if ((rq->rq_flags & RQF_SORTED) &&
- e->type->ops.elevator_completed_req_fn)
- e->type->ops.elevator_completed_req_fn(q, rq);
+ e->type->ops.sq.elevator_completed_req_fn)
+ e->type->ops.sq.elevator_completed_req_fn(q, rq);
}
}
@@ -803,8 +803,8 @@ int elv_register_queue(struct request_queue *q)
}
kobject_uevent(&e->kobj, KOBJ_ADD);
e->registered = 1;
- if (e->type->ops.elevator_registered_fn)
- e->type->ops.elevator_registered_fn(q);
+ if (e->type->ops.sq.elevator_registered_fn)
+ e->type->ops.sq.elevator_registered_fn(q);
}
return error;
}
@@ -912,7 +912,7 @@ static int elevator_switch(struct request_queue *q, struct elevator_type *new_e)
spin_unlock_irq(q->queue_lock);
/* allocate, init and register new elevator */
- err = new_e->ops.elevator_init_fn(q, new_e);
+ err = new_e->ops.sq.elevator_init_fn(q, new_e);
if (err)
goto fail_init;