[dm-devel] [Patch] dm-mpath.c: use schedule_work()

[Joe Thornber]

dm-mpath.c: Use schedule_work() rather than queue_work().  Having our
own thread for mpath seems like overkill.
--- diff/drivers/md/dm-mpath.c	2004-03-01 16:18:32.000000000 +0000
+++ source/drivers/md/dm-mpath.c	2004-03-02 09:48:20.000000000 +0000
@@ -199,8 +199,6 @@ static void free_multipath(struct multip
 /*-----------------------------------------------------------------
  * The multipath daemon is responsible for resubmitting failed ios.
  *---------------------------------------------------------------*/
-static struct workqueue_struct *_kmpathd_wq;
-
 static int __choose_path(struct multipath *m)
 {
 	struct priority_group *pg;
@@ -533,7 +531,7 @@ static void fail_path(struct path *path)
 
 		path->has_failed = 1;
 		path->pg->ps->type->fail_path(path->pg->ps, path);
-		queue_work(_kmpathd_wq, &m->trigger_event);
+		schedule_work(&m->trigger_event);
 
 		spin_lock(&m->lock);
 		m->nr_valid_paths--;
@@ -574,7 +572,7 @@ static int do_end_io(struct multipath *m
 		bio_list_add(&m->failed_ios, bio);
 		spin_unlock(&m->lock);
 
-		queue_work(_kmpathd_wq, &m->dispatch_failed);
+		schedule_work(&m->dispatch_failed);
 		return 1;	/* io not complete */
 	}
 
@@ -693,15 +691,7 @@ int __init dm_multipath_init(void)
 		return r;
 	}
 
-	_kmpathd_wq = create_workqueue("dm-mpath");
-	if (!_kmpathd_wq) {
-		/* FIXME: remove this */
-		dm_unregister_path_selectors();
-		dm_unregister_target(&multipath_target);
-		kmem_cache_destroy(_details_cache);
-	} else
-		DMINFO("dm_multipath v0.2.0");
-
+	DMINFO("dm_multipath v0.2.0");
 	return r;
 }
 
@@ -709,7 +699,6 @@ void __exit dm_multipath_exit(void)
 {
 	int r;
 
-	destroy_workqueue(_kmpathd_wq);
 	dm_unregister_path_selectors();
 	r = dm_unregister_target(&multipath_target);
 	if (r < 0)