diff options
Diffstat (limited to 'block/elevator.c')
-rw-r--r-- | block/elevator.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/block/elevator.c b/block/elevator.c index 96a00c822748..ce866eb75f6a 100644 --- a/block/elevator.c +++ b/block/elevator.c | |||
@@ -134,13 +134,13 @@ static struct elevator_type *elevator_get(const char *name) | |||
134 | { | 134 | { |
135 | struct elevator_type *e; | 135 | struct elevator_type *e; |
136 | 136 | ||
137 | spin_lock_irq(&elv_list_lock); | 137 | spin_lock(&elv_list_lock); |
138 | 138 | ||
139 | e = elevator_find(name); | 139 | e = elevator_find(name); |
140 | if (e && !try_module_get(e->elevator_owner)) | 140 | if (e && !try_module_get(e->elevator_owner)) |
141 | e = NULL; | 141 | e = NULL; |
142 | 142 | ||
143 | spin_unlock_irq(&elv_list_lock); | 143 | spin_unlock(&elv_list_lock); |
144 | 144 | ||
145 | return e; | 145 | return e; |
146 | } | 146 | } |
@@ -965,10 +965,11 @@ void elv_unregister_queue(struct request_queue *q) | |||
965 | int elv_register(struct elevator_type *e) | 965 | int elv_register(struct elevator_type *e) |
966 | { | 966 | { |
967 | char *def = ""; | 967 | char *def = ""; |
968 | spin_lock_irq(&elv_list_lock); | 968 | |
969 | spin_lock(&elv_list_lock); | ||
969 | BUG_ON(elevator_find(e->elevator_name)); | 970 | BUG_ON(elevator_find(e->elevator_name)); |
970 | list_add_tail(&e->list, &elv_list); | 971 | list_add_tail(&e->list, &elv_list); |
971 | spin_unlock_irq(&elv_list_lock); | 972 | spin_unlock(&elv_list_lock); |
972 | 973 | ||
973 | if (!strcmp(e->elevator_name, chosen_elevator) || | 974 | if (!strcmp(e->elevator_name, chosen_elevator) || |
974 | (!*chosen_elevator && | 975 | (!*chosen_elevator && |
@@ -998,9 +999,9 @@ void elv_unregister(struct elevator_type *e) | |||
998 | read_unlock(&tasklist_lock); | 999 | read_unlock(&tasklist_lock); |
999 | } | 1000 | } |
1000 | 1001 | ||
1001 | spin_lock_irq(&elv_list_lock); | 1002 | spin_lock(&elv_list_lock); |
1002 | list_del_init(&e->list); | 1003 | list_del_init(&e->list); |
1003 | spin_unlock_irq(&elv_list_lock); | 1004 | spin_unlock(&elv_list_lock); |
1004 | } | 1005 | } |
1005 | EXPORT_SYMBOL_GPL(elv_unregister); | 1006 | EXPORT_SYMBOL_GPL(elv_unregister); |
1006 | 1007 | ||
@@ -1118,7 +1119,7 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name) | |||
1118 | struct list_head *entry; | 1119 | struct list_head *entry; |
1119 | int len = 0; | 1120 | int len = 0; |
1120 | 1121 | ||
1121 | spin_lock_irq(&elv_list_lock); | 1122 | spin_lock(&elv_list_lock); |
1122 | list_for_each(entry, &elv_list) { | 1123 | list_for_each(entry, &elv_list) { |
1123 | struct elevator_type *__e; | 1124 | struct elevator_type *__e; |
1124 | 1125 | ||
@@ -1128,7 +1129,7 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name) | |||
1128 | else | 1129 | else |
1129 | len += sprintf(name+len, "%s ", __e->elevator_name); | 1130 | len += sprintf(name+len, "%s ", __e->elevator_name); |
1130 | } | 1131 | } |
1131 | spin_unlock_irq(&elv_list_lock); | 1132 | spin_unlock(&elv_list_lock); |
1132 | 1133 | ||
1133 | len += sprintf(len+name, "\n"); | 1134 | len += sprintf(len+name, "\n"); |
1134 | return len; | 1135 | return len; |