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Diffstat (limited to 'block/elevator.c')
-rw-r--r--block/elevator.c44
1 files changed, 21 insertions, 23 deletions
diff --git a/block/elevator.c b/block/elevator.c
index f7d973a56fd7..40f0c04e5ad3 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -245,31 +245,31 @@ EXPORT_SYMBOL(elevator_exit);
static inline void __elv_rqhash_del(struct request *rq)
{
hash_del(&rq->hash);
- rq->cmd_flags &= ~REQ_HASHED;
+ rq->rq_flags &= ~RQF_HASHED;
}
-static void elv_rqhash_del(struct request_queue *q, struct request *rq)
+void elv_rqhash_del(struct request_queue *q, struct request *rq)
{
if (ELV_ON_HASH(rq))
__elv_rqhash_del(rq);
}
-static void elv_rqhash_add(struct request_queue *q, struct request *rq)
+void elv_rqhash_add(struct request_queue *q, struct request *rq)
{
struct elevator_queue *e = q->elevator;
BUG_ON(ELV_ON_HASH(rq));
hash_add(e->hash, &rq->hash, rq_hash_key(rq));
- rq->cmd_flags |= REQ_HASHED;
+ rq->rq_flags |= RQF_HASHED;
}
-static void elv_rqhash_reposition(struct request_queue *q, struct request *rq)
+void elv_rqhash_reposition(struct request_queue *q, struct request *rq)
{
__elv_rqhash_del(rq);
elv_rqhash_add(q, rq);
}
-static struct request *elv_rqhash_find(struct request_queue *q, sector_t offset)
+struct request *elv_rqhash_find(struct request_queue *q, sector_t offset)
{
struct elevator_queue *e = q->elevator;
struct hlist_node *next;
@@ -352,7 +352,6 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
{
sector_t boundary;
struct list_head *entry;
- int stop_flags;
if (q->last_merge == rq)
q->last_merge = NULL;
@@ -362,7 +361,6 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
q->nr_sorted--;
boundary = q->end_sector;
- stop_flags = REQ_SOFTBARRIER | REQ_STARTED;
list_for_each_prev(entry, &q->queue_head) {
struct request *pos = list_entry_rq(entry);
@@ -370,7 +368,7 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
break;
if (rq_data_dir(rq) != rq_data_dir(pos))
break;
- if (pos->cmd_flags & stop_flags)
+ if (pos->rq_flags & (RQF_STARTED | RQF_SOFTBARRIER))
break;
if (blk_rq_pos(rq) >= boundary) {
if (blk_rq_pos(pos) < boundary)
@@ -510,7 +508,7 @@ void elv_merge_requests(struct request_queue *q, struct request *rq,
struct request *next)
{
struct elevator_queue *e = q->elevator;
- const int next_sorted = next->cmd_flags & REQ_SORTED;
+ 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);
@@ -537,13 +535,13 @@ void elv_bio_merged(struct request_queue *q, struct request *rq,
#ifdef CONFIG_PM
static void blk_pm_requeue_request(struct request *rq)
{
- if (rq->q->dev && !(rq->cmd_flags & REQ_PM))
+ if (rq->q->dev && !(rq->rq_flags & RQF_PM))
rq->q->nr_pending--;
}
static void blk_pm_add_request(struct request_queue *q, struct request *rq)
{
- if (q->dev && !(rq->cmd_flags & REQ_PM) && q->nr_pending++ == 0 &&
+ if (q->dev && !(rq->rq_flags & RQF_PM) && q->nr_pending++ == 0 &&
(q->rpm_status == RPM_SUSPENDED || q->rpm_status == RPM_SUSPENDING))
pm_request_resume(q->dev);
}
@@ -563,11 +561,11 @@ void elv_requeue_request(struct request_queue *q, struct request *rq)
*/
if (blk_account_rq(rq)) {
q->in_flight[rq_is_sync(rq)]--;
- if (rq->cmd_flags & REQ_SORTED)
+ if (rq->rq_flags & RQF_SORTED)
elv_deactivate_rq(q, rq);
}
- rq->cmd_flags &= ~REQ_STARTED;
+ rq->rq_flags &= ~RQF_STARTED;
blk_pm_requeue_request(rq);
@@ -597,13 +595,13 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
rq->q = q;
- if (rq->cmd_flags & REQ_SOFTBARRIER) {
+ if (rq->rq_flags & RQF_SOFTBARRIER) {
/* barriers are scheduling boundary, update end_sector */
if (rq->cmd_type == REQ_TYPE_FS) {
q->end_sector = rq_end_sector(rq);
q->boundary_rq = rq;
}
- } else if (!(rq->cmd_flags & REQ_ELVPRIV) &&
+ } else if (!(rq->rq_flags & RQF_ELVPRIV) &&
(where == ELEVATOR_INSERT_SORT ||
where == ELEVATOR_INSERT_SORT_MERGE))
where = ELEVATOR_INSERT_BACK;
@@ -611,12 +609,12 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
switch (where) {
case ELEVATOR_INSERT_REQUEUE:
case ELEVATOR_INSERT_FRONT:
- rq->cmd_flags |= REQ_SOFTBARRIER;
+ rq->rq_flags |= RQF_SOFTBARRIER;
list_add(&rq->queuelist, &q->queue_head);
break;
case ELEVATOR_INSERT_BACK:
- rq->cmd_flags |= REQ_SOFTBARRIER;
+ rq->rq_flags |= RQF_SOFTBARRIER;
elv_drain_elevator(q);
list_add_tail(&rq->queuelist, &q->queue_head);
/*
@@ -642,7 +640,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
break;
case ELEVATOR_INSERT_SORT:
BUG_ON(rq->cmd_type != REQ_TYPE_FS);
- rq->cmd_flags |= REQ_SORTED;
+ rq->rq_flags |= RQF_SORTED;
q->nr_sorted++;
if (rq_mergeable(rq)) {
elv_rqhash_add(q, rq);
@@ -659,7 +657,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
break;
case ELEVATOR_INSERT_FLUSH:
- rq->cmd_flags |= REQ_SOFTBARRIER;
+ rq->rq_flags |= RQF_SOFTBARRIER;
blk_insert_flush(rq);
break;
default:
@@ -716,12 +714,12 @@ void elv_put_request(struct request_queue *q, struct request *rq)
e->type->ops.elevator_put_req_fn(rq);
}
-int elv_may_queue(struct request_queue *q, int op, int op_flags)
+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, op_flags);
+ return e->type->ops.elevator_may_queue_fn(q, op);
return ELV_MQUEUE_MAY;
}
@@ -735,7 +733,7 @@ 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->cmd_flags & REQ_SORTED) &&
+ if ((rq->rq_flags & RQF_SORTED) &&
e->type->ops.elevator_completed_req_fn)
e->type->ops.elevator_completed_req_fn(q, rq);
}