diff options
Diffstat (limited to 'block/elevator.c')
| -rw-r--r-- | block/elevator.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/block/elevator.c b/block/elevator.c index ce866eb75f6..d265963d1ed 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -112,12 +112,8 @@ static inline int elv_try_merge(struct request *__rq, struct bio *bio) static struct elevator_type *elevator_find(const char *name) { struct elevator_type *e; - struct list_head *entry; - - list_for_each(entry, &elv_list) { - - e = list_entry(entry, struct elevator_type, list); + list_for_each_entry(e, &elv_list, list) { if (!strcmp(e->elevator_name, name)) return e; } @@ -181,11 +177,10 @@ static elevator_t *elevator_alloc(request_queue_t *q, struct elevator_type *e) elevator_t *eq; int i; - eq = kmalloc_node(sizeof(elevator_t), GFP_KERNEL, q->node); + eq = kmalloc_node(sizeof(elevator_t), GFP_KERNEL | __GFP_ZERO, q->node); if (unlikely(!eq)) goto err; - memset(eq, 0, sizeof(*eq)); eq->ops = &e->ops; eq->elevator_type = e; kobject_init(&eq->kobj); @@ -1116,14 +1111,11 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name) { elevator_t *e = q->elevator; struct elevator_type *elv = e->elevator_type; - struct list_head *entry; + struct elevator_type *__e; int len = 0; spin_lock(&elv_list_lock); - list_for_each(entry, &elv_list) { - struct elevator_type *__e; - - __e = list_entry(entry, struct elevator_type, list); + list_for_each_entry(__e, &elv_list, list) { if (!strcmp(elv->elevator_name, __e->elevator_name)) len += sprintf(name+len, "[%s] ", elv->elevator_name); else |