On Fri, Jul 27, 2018 at 05:14:18PM +0000, Bart Van Assche wrote:
> On Fri, 2018-07-27 at 11:04 -0600, Keith Busch wrote:
> > On Fri, Jul 27, 2018 at 04:59:34PM +0000, Bart Van Assche wrote:
> > > On Fri, 2018-07-27 at 10:57 -0600, Keith Busch wrote:
> > > > You skip that code if the driver returns BLK_EH_DONT_RESET_TIMER.
> > > 
> > > How about applying the following patch on top of this series?
> > 
> > That works for me if you, but it breaks scsi again when
> > scmd_eh_abort_handler completes the command a second time.
> 
> How about introducing a new request queue flag that chooses between the
> behavior with or without the patch in my previous e-mail? I don't think that
> it is possible to come up with a single implementation that covers the needs
> of NVMe and SCSI without introducing such a flag. If a SCSI request times out
> then request ownership is transferred from the LLD to the error handler. For
> the NVMe driver however there is no such transfer of ownership.

Instead of PATCH 1/5, how about creating a new timeout return code like
"BLK_EH_DONT_COMPLETE"?

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