Re: [PATCHv2] nvme: Assign subsy instance from first ctrl

From: Minwoo Im
Date: Sat Sep 07 2019 - 02:14:22 EST


> Subject: [PATCHv2] nvme: Assign subsy instance from first ctrl

I'm not sure but, I have not seen 'subsy' thing before. Maybe
s/sybsy/subsys/ ?

>
> The namespace disk names must be unique for the lifetime of the
> subsystem. This was accomplished by using their parent subsystems'
> instances which were allocated independently from the controllers
> connected to that subsystem. This allowed name prefixes assigned to
> namespaces to match a controller from an unrelated subsystem, and has
> created confusion among users examining device nodes.
>
> Ensure a namespace's subsystem instance never clashes with a controller
> instance of another subsystem by transferring the instance ownership
> to the parent subsystem from the first controller discovered in that
> subsystem.
>
> Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
> Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx>

Keith, Thanks for this patch. I really like this concept which can
avoid from instance mistakes.

Otherwise looks good to me.

Reviewed-by: Minwoo Im <minwoo.im@xxxxxxxxxxx>