On Fri, 2019-03-08 at 14:14 -0700, Keith Busch wrote: +AD4 On Fri, Mar 08, 2019 at 12:47:10PM -0800, Bart Van Assche wrote: +AD4 +AD4 If no such mechanism has been defined in the NVMe spec: have you considered +AD4 +AD4 to cancel all outstanding requests instead of calling blk+AF8-mq+AF8-end+AF8-request() for +AD4 +AD4 all outstanding requests? +AD4 +AD4 Isn't this cancelling requests? Is there an existing block interface +AD4 that accomplishes this? Hi Keith, Sorry if I was unclear. With +ACI-canceling outstanding requests+ACI I was referring to the NVMe abort command. I think aborting outstanding requests has the advantage that no new explicit call to blk+AF8-mq+AF8-end+AF8-request() call has to be added. Bart.