TODO list 2011-12-09

[Kong, Kwok]

There is code in the driver to create devices for NS 1, 2, 3 ...N
already.  It seems to me that it is very easy to create a "controller"
device name with NS=0.  There is really no need to create new code to
create a character device.

i.e. use the same function nvme_alloc_ns() to create NS0 and hence
driver nvme0n0.
The device name becomes:

nvme0n0: controller
nvme0n1: NS 1
name0n2: NS 2
...
...
etc

I am ok with a character device "nvme0" or "nvme0n0" but why do it if a
block device works and the code is there already.

What do you think ?

-Kwok



-----Original Message-----
From: Matthew Wilcox [mailto:willy at linux.intel.com] 
Sent: Monday, December 12, 2011 12:48 PM
To: Kong, Kwok
Cc: linux-nvme at lists.infradead.org
Subject: Re: TODO list 2011-12-09

On Mon, Dec 12, 2011 at 10:59:24AM -0800, Kong, Kwok wrote:
> Mathew,
> 
> Regarding the character device for /dev/nvmeN, can we just create a 
> block device namespace 0 with 0 capacity ?
> Ie. nvme0n0.  

That doesn't feel very intuitive to me.  What would be the advantage?