Re: Enhance ptyfs to handle multiple instances.

[Ilya Zykov <netbsd%izyk.ru@localhost>]

> 
> - I don't like the refactoring because it makes ptyfs less optional (brings
>   in code and headers to the base kernel). I think it is simpler to provide
>   an entry function to get the mount point instead, and this way all the guts
>   of ptyfs stay in ptyfs.

Looks better, thank you.

> - Is it important to append to the list? Then perhaps use a different set
>   of macros than LIST_. I've changed the code just to prepend.
> 
> I hope I did not break it. Comments?

Order IMPORTANT here, because, pty_getmp returns the first found,
traditionally /dev/pts - must be persistently first(for security too). 
All others MPs are useful only inside chroot.


Ilya.