[PATCH V2 0/1] nvme: introduce generic per-namespace chardev

[Niklas Cassel]

On Wed, Apr 07, 2021 at 11:39:23AM +0200, Christoph Hellwig wrote:
> On Wed, Apr 07, 2021 at 07:36:22AM +0000, Niklas Cassel wrote:
> > The SCSI generic devices are named /dev/sgX while the SCSI block devices
> > are named /dev/sd*, so the names are more distinct compared to /dev/nvme*
> > and /dev/nvme-generic-*.
> > 
> > A "regular" Linux user who writes /dev/sd<tab> will not see the SCSI
> > generic devices, but with the current proposal, if he writes
> > /dev/nvme<tab>, he will see the NVMe generic devices.
> > 
> > I just had a gut feeling that this could cause confusion in the future.
> > However, I trust your experience and judgement more than my gut feeling.
> 
> Should we call the nodes /dev/ng* ?

Man... naming things is the hardest thing about software development ;)

It would solve the problem of them being too similarly named.
And if we document this somewhere, it makes sense that SCSI generic
is /dev/sg and NVMe generic is /dev/ng...

The only "bad" thing is that we take up a very generic (pun intended)
name in the /dev/ namespace. The acronym might conflict with something
else in the future. But trying to predict the future seems silly,
so I can't come up with any argument against your naming proposal :)


Kind regards,
Niklas