floppy: remove dead/commented out code from floppy driver
[cascardo/linux.git] / block / ll_rw_blk.c
index 9eabac9..524404b 100644 (file)
@@ -1786,6 +1786,7 @@ static void blk_release_queue(struct kobject *kobj)
 
        blk_trace_shutdown(q);
 
+       bdi_destroy(&q->backing_dev_info);
        kmem_cache_free(requestq_cachep, q);
 }
 
@@ -1839,21 +1840,27 @@ static struct kobj_type queue_ktype;
 struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 {
        struct request_queue *q;
+       int err;
 
        q = kmem_cache_alloc_node(requestq_cachep,
                                gfp_mask | __GFP_ZERO, node_id);
        if (!q)
                return NULL;
 
+       q->backing_dev_info.unplug_io_fn = blk_backing_dev_unplug;
+       q->backing_dev_info.unplug_io_data = q;
+       err = bdi_init(&q->backing_dev_info);
+       if (err) {
+               kmem_cache_free(requestq_cachep, q);
+               return NULL;
+       }
+
        init_timer(&q->unplug_timer);
 
        kobject_set_name(&q->kobj, "%s", "queue");
        q->kobj.ktype = &queue_ktype;
        kobject_init(&q->kobj);
 
-       q->backing_dev_info.unplug_io_fn = blk_backing_dev_unplug;
-       q->backing_dev_info.unplug_io_data = q;
-
        mutex_init(&q->sysfs_lock);
 
        return q;