On Fri, Apr 13, 2012 at 01:37:26PM -0700, Tejun Heo wrote: [..] > blk_cleanup_queue() doesn't use blk_queue_bypass_start() to enter > bypass mode. Oh now elevator_exit() has been moved into blk_release_queue(). But problem will still be there, isn't it? During driver init, most likely driver is holding last reference of the queue and blk_release_queue() will be called in the context of blk_cleanup_queue() causing the overhead? Thanks Vivek -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html