block: make elevator lib checkpatch compliant
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
Родитель
fe094d98e7
Коммит
4eb166d987
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@ -45,7 +45,8 @@ static LIST_HEAD(elv_list);
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*/
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static const int elv_hash_shift = 6;
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#define ELV_HASH_BLOCK(sec) ((sec) >> 3)
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#define ELV_HASH_FN(sec) (hash_long(ELV_HASH_BLOCK((sec)), elv_hash_shift))
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#define ELV_HASH_FN(sec) \
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(hash_long(ELV_HASH_BLOCK((sec)), elv_hash_shift))
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#define ELV_HASH_ENTRIES (1 << elv_hash_shift)
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#define rq_hash_key(rq) ((rq)->sector + (rq)->nr_sectors)
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#define ELV_ON_HASH(rq) (!hlist_unhashed(&(rq)->hash))
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@ -224,15 +225,27 @@ int elevator_init(struct request_queue *q, char *name)
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q->end_sector = 0;
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q->boundary_rq = NULL;
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if (name && !(e = elevator_get(name)))
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return -EINVAL;
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if (name) {
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e = elevator_get(name);
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if (!e)
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return -EINVAL;
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}
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if (!e && *chosen_elevator && !(e = elevator_get(chosen_elevator)))
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printk("I/O scheduler %s not found\n", chosen_elevator);
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if (!e && *chosen_elevator) {
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e = elevator_get(chosen_elevator);
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if (!e)
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printk(KERN_ERR "I/O scheduler %s not found\n",
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chosen_elevator);
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}
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if (!e && !(e = elevator_get(CONFIG_DEFAULT_IOSCHED))) {
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printk("Default I/O scheduler not found, using no-op\n");
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e = elevator_get("noop");
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if (!e) {
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e = elevator_get(CONFIG_DEFAULT_IOSCHED);
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if (!e) {
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printk(KERN_ERR
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"Default I/O scheduler not found. " \
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"Using noop.\n");
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e = elevator_get("noop");
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}
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}
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eq = elevator_alloc(q, e);
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@ -248,7 +261,6 @@ int elevator_init(struct request_queue *q, char *name)
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elevator_attach(q, eq, data);
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return ret;
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}
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EXPORT_SYMBOL(elevator_init);
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void elevator_exit(elevator_t *e)
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@ -261,7 +273,6 @@ void elevator_exit(elevator_t *e)
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kobject_put(&e->kobj);
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}
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EXPORT_SYMBOL(elevator_exit);
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static void elv_activate_rq(struct request_queue *q, struct request *rq)
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@ -353,7 +364,6 @@ struct request *elv_rb_add(struct rb_root *root, struct request *rq)
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rb_insert_color(&rq->rb_node, root);
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return NULL;
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}
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EXPORT_SYMBOL(elv_rb_add);
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void elv_rb_del(struct rb_root *root, struct request *rq)
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@ -362,7 +372,6 @@ void elv_rb_del(struct rb_root *root, struct request *rq)
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rb_erase(&rq->rb_node, root);
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RB_CLEAR_NODE(&rq->rb_node);
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}
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EXPORT_SYMBOL(elv_rb_del);
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struct request *elv_rb_find(struct rb_root *root, sector_t sector)
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@ -383,7 +392,6 @@ struct request *elv_rb_find(struct rb_root *root, sector_t sector)
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return NULL;
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}
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EXPORT_SYMBOL(elv_rb_find);
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/*
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@ -395,6 +403,7 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
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{
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sector_t boundary;
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struct list_head *entry;
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int stop_flags;
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if (q->last_merge == rq)
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q->last_merge = NULL;
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@ -404,13 +413,13 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
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q->nr_sorted--;
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boundary = q->end_sector;
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stop_flags = REQ_SOFTBARRIER | REQ_HARDBARRIER | REQ_STARTED;
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list_for_each_prev(entry, &q->queue_head) {
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struct request *pos = list_entry_rq(entry);
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if (rq_data_dir(rq) != rq_data_dir(pos))
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break;
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if (pos->cmd_flags & (REQ_SOFTBARRIER|REQ_HARDBARRIER|REQ_STARTED))
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if (pos->cmd_flags & stop_flags)
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break;
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if (rq->sector >= boundary) {
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if (pos->sector < boundary)
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@ -425,7 +434,6 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
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list_add(&rq->queuelist, entry);
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}
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EXPORT_SYMBOL(elv_dispatch_sort);
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/*
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@ -446,7 +454,6 @@ void elv_dispatch_add_tail(struct request_queue *q, struct request *rq)
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q->boundary_rq = rq;
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list_add_tail(&rq->queuelist, &q->queue_head);
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}
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EXPORT_SYMBOL(elv_dispatch_add_tail);
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int elv_merge(struct request_queue *q, struct request **req, struct bio *bio)
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@ -665,7 +672,8 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where,
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q->end_sector = rq_end_sector(rq);
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q->boundary_rq = rq;
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}
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} else if (!(rq->cmd_flags & REQ_ELVPRIV) && where == ELEVATOR_INSERT_SORT)
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} else if (!(rq->cmd_flags & REQ_ELVPRIV) &&
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where == ELEVATOR_INSERT_SORT)
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where = ELEVATOR_INSERT_BACK;
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if (plug)
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@ -673,7 +681,6 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where,
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elv_insert(q, rq, where);
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}
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EXPORT_SYMBOL(__elv_add_request);
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void elv_add_request(struct request_queue *q, struct request *rq, int where,
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@ -685,7 +692,6 @@ void elv_add_request(struct request_queue *q, struct request *rq, int where,
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__elv_add_request(q, rq, where, plug);
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spin_unlock_irqrestore(q->queue_lock, flags);
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}
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EXPORT_SYMBOL(elv_add_request);
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static inline struct request *__elv_next_request(struct request_queue *q)
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@ -792,7 +798,6 @@ struct request *elv_next_request(struct request_queue *q)
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return rq;
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}
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EXPORT_SYMBOL(elv_next_request);
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void elv_dequeue_request(struct request_queue *q, struct request *rq)
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@ -810,7 +815,6 @@ void elv_dequeue_request(struct request_queue *q, struct request *rq)
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if (blk_account_rq(rq))
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q->in_flight++;
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}
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EXPORT_SYMBOL(elv_dequeue_request);
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int elv_queue_empty(struct request_queue *q)
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@ -825,7 +829,6 @@ int elv_queue_empty(struct request_queue *q)
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return 1;
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}
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EXPORT_SYMBOL(elv_queue_empty);
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struct request *elv_latter_request(struct request_queue *q, struct request *rq)
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@ -994,7 +997,8 @@ void elv_register(struct elevator_type *e)
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!strcmp(e->elevator_name, CONFIG_DEFAULT_IOSCHED)))
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def = " (default)";
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printk(KERN_INFO "io scheduler %s registered%s\n", e->elevator_name, def);
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printk(KERN_INFO "io scheduler %s registered%s\n", e->elevator_name,
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def);
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}
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EXPORT_SYMBOL_GPL(elv_register);
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@ -1126,7 +1130,8 @@ ssize_t elv_iosched_store(struct request_queue *q, const char *name,
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}
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if (!elevator_switch(q, e))
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printk(KERN_ERR "elevator: switch to %s failed\n",elevator_name);
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printk(KERN_ERR "elevator: switch to %s failed\n",
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elevator_name);
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return count;
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}
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@ -1160,7 +1165,6 @@ struct request *elv_rb_former_request(struct request_queue *q,
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return NULL;
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}
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EXPORT_SYMBOL(elv_rb_former_request);
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struct request *elv_rb_latter_request(struct request_queue *q,
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@ -1173,5 +1177,4 @@ struct request *elv_rb_latter_request(struct request_queue *q,
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return NULL;
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}
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EXPORT_SYMBOL(elv_rb_latter_request);
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