On Mon, Nov 19, 2018 at 12:51:26PM +0900, Damien Le Moal wrote: > bio->bi_ioc is never set so always NULL. Remove references to it in > bio_disassociate_task() and in rq_ioc() and delete this field from > struct bio. With this change, rq_ioc() always returns > current->io_context without the need for a bio argument. Further > simplify the code and make it more readable by also removing this > helper, which also allows to simplify blk_mq_sched_assign_ioc() by > removing its bio argument. > > Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>