[PATCH 00/10] nvme multipath support on top of nvme-4.13 branch

anish.jhaveri at paviliondata.com anish.jhaveri at paviliondata.com
Mon Sep 18 21:40:10 PDT 2017


On Wed, Sep 13, 2017 at 08:57:13AM +0200, Hannes Reinecke wrote:
> In general I am _not_ in favour of this approach.
> 
> This is essentially the same level of multipath support we had in the
> old qlogic and lpfc drivers in 2.4/2.6 series, and it took us _years_ to
> get rid of this.
> Main objection here is that it will be really hard (if not impossible)
> to use the same approach for other subsystems (eg SCSI), so we'll end up
> having different multipath implementations depending on which subsystem
> is being used.
> Which really is a maintenance nightmare.
> 
> I'm not averse to having other multipath implementations in the kernel,
> but it really should be abstracted so that other subsystems can _try_ to
> leverage it.

Got it. Thanks! 



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