[BLOCK] Cleanup unused variable passing

- ->init_queue() does not need the elevator passed in
- ->put_request() is a hot path and need not have the queue passed in
- cfq_update_io_seektime() does not need cfqd passed in

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 1d9c3c70a9a0..e9019ed39b73 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1464,8 +1464,7 @@ cfq_update_io_thinktime(struct cfq_data *cfqd, struct cfq_io_context *cic)
 }
 
 static void
-cfq_update_io_seektime(struct cfq_data *cfqd, struct cfq_io_context *cic,
-                       struct request *rq)
+cfq_update_io_seektime(struct cfq_io_context *cic, struct request *rq)
 {
         sector_t sdist;
         u64 total;
@@ -1617,7 +1616,7 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
         }
 
         cfq_update_io_thinktime(cfqd, cic);
-        cfq_update_io_seektime(cfqd, cic, rq);
+        cfq_update_io_seektime(cic, rq);
         cfq_update_idle_window(cfqd, cfqq, cic);
 
         cic->last_queue = jiffies;
@@ -1770,7 +1769,7 @@ static int cfq_may_queue(request_queue_t *q, int rw)
 /*
  * queue lock held here
  */
-static void cfq_put_request(request_queue_t *q, struct request *rq)
+static void cfq_put_request(struct request *rq)
 {
         struct cfq_queue *cfqq = RQ_CFQQ(rq);
 
@@ -1951,7 +1950,7 @@ static void cfq_exit_queue(elevator_t *e)
         kfree(cfqd);
 }
 
-static void *cfq_init_queue(request_queue_t *q, elevator_t *e)
+static void *cfq_init_queue(request_queue_t *q)
 {
         struct cfq_data *cfqd;
         int i;