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Date: Fri, 24 Oct 2008 06:50:12 +0200
From: Ed Schouten <ed@80386.nl>
To: John Baldwin <jhb@freebsd.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
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Subject: Re: svn commit: r184208 - head/sys/dev/uart
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* John Baldwin <jhb@freebsd.org> wrote:
> Perhaps have tty drivers sleep in detach until the tty is completely gone=
? =20
> Either that or free the unit number in the tty layer when the tty is=20
> abandoned.

Well, I could add a routine to the TTY layer that does that. The reason
why the TTY layer is a little `lazy' with deallocating TTY unit numbers,
is because I want to be absolutely sure processes agree they do not use
the TTY (device name) anymore.

I'll see if I can add a sleepable tty_gone() routine one of these days.

--=20
 Ed Schouten <ed@80386.nl>
 WWW: http://80386.nl/

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