Re: vnd.c 1.254

[Martin Husemann <martin%NetBSD.org@localhost>]

On Tue, Mar 22, 2016 at 10:44:40PM +0700, Robert Elz wrote:
> All that said, I offer the following patch (inspired by an earlier,
> simpler, one from Martin Husemann) which makes two changes to vnconfig
> (also called vndconfig in current.)
> 
> First, it allows vnconfig -l dev... rather than just vnconfig -l dev
> (ie: you can give more than one device to list), so if you really need
> to get the status of all vnd devices in /dev, you can just do
> 
> 	vn[d]config -l /dev/vnd*d
> 
> And second, it adds a -m N (N is a decimal integer) that can be used
> instead of device names with -l, to specify the minimum number of vnds
> vn[d]condig should list (it will list more if the kernel knows more,
> and with current kernels, that always means it will list some multiple of 4.)
> As a special case, -m 0 causes all output of unused vnd's to be suppressed,
> and suppresses error messages (but still returns a non-zero exit code)
> in the case that either there is no /dev/vnd0* existing, or the kernel
> does not have the vnd driver configured.)   The default value for -m is 4
> for compatibility with ancient versions of vnconfig (which typically listed
> 4 vnds if the kernel had the vnd driver, and /dev/vnd0d existed)

I think we should go with this and pull this all up to netbsd-7 as well.

Any objections?

Martin