Merge git://git.infradead.org/~dwmw2/rbtree-2.6
[linux-2.6.git] / block / deadline-iosched.c
index 06962d8..c94de8e 100644 (file)
@@ -612,24 +612,24 @@ static void deadline_exit_queue(elevator_t *e)
  * initialize elevator private data (deadline_data), and alloc a drq for
  * each request on the free lists
  */
-static int deadline_init_queue(request_queue_t *q, elevator_t *e)
+static void *deadline_init_queue(request_queue_t *q, elevator_t *e)
 {
        struct deadline_data *dd;
        int i;
 
        if (!drq_pool)
-               return -ENOMEM;
+               return NULL;
 
        dd = kmalloc_node(sizeof(*dd), GFP_KERNEL, q->node);
        if (!dd)
-               return -ENOMEM;
+               return NULL;
        memset(dd, 0, sizeof(*dd));
 
        dd->hash = kmalloc_node(sizeof(struct list_head)*DL_HASH_ENTRIES,
                                GFP_KERNEL, q->node);
        if (!dd->hash) {
                kfree(dd);
-               return -ENOMEM;
+               return NULL;
        }
 
        dd->drq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab,
@@ -637,7 +637,7 @@ static int deadline_init_queue(request_queue_t *q, elevator_t *e)
        if (!dd->drq_pool) {
                kfree(dd->hash);
                kfree(dd);
-               return -ENOMEM;
+               return NULL;
        }
 
        for (i = 0; i < DL_HASH_ENTRIES; i++)
@@ -652,8 +652,7 @@ static int deadline_init_queue(request_queue_t *q, elevator_t *e)
        dd->writes_starved = writes_starved;
        dd->front_merges = 1;
        dd->fifo_batch = fifo_batch;
-       e->elevator_data = dd;
-       return 0;
+       return dd;
 }
 
 static void deadline_put_request(request_queue_t *q, struct request *rq)