[PATCH] Mark cfq_exit as an exit function

Mark cfq_exit function as and exit function, and make it static.
Signed-off-by: Chris Wright <chris@osdl.org>
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/block/cfq-iosched.c

@@ -1920,7 +1920,7 @@ int cfq_init(void)
 	return ret;
 }
 
-void cfq_exit(void)
+static void __exit cfq_exit(void)
 {
 	cfq_slab_kill();
 	elv_unregister(&iosched_cfq);