On Fri, Mar 24, 2017 at 11:39:10AM -0600, Jens Axboe wrote: > Currently we return true in blk_mq_dispatch_rq_list() if we queued IO > successfully, but we really want to return whether or not the we made > progress. Progress includes if we got an error return. If we don't, > this can lead to a hang in blk_mq_sched_dispatch_requests() when a > driver is draining IO by returning BLK_MQ_QUEUE_ERROR instead of > manually ending the IO in error and return BLK_MQ_QUEUE_OK. > > Signed-off-by: Jens Axboe <axboe@xxxxxx> Reviewed-by: Omar Sandoval <osandov@xxxxxx>
