From owner-cvs-all  Mon Jun 28  1:48:56 1999
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To: Nick Hibma <nick.hibma@jrc.it>
Cc: Kirk McKusick <mckusick@FreeBSD.org>, cvs-committers@FreeBSD.org,
	cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/kern kern_lock.c 
In-reply-to: Your message of "Mon, 28 Jun 1999 10:38:13 +0200."
             <Pine.GSO.3.95q.990628103756.4320U-100000@elect8> 
Date: Mon, 28 Jun 1999 10:48:08 +0200
Message-ID: <29716.930559688@critter.freebsd.dk>
From: Poul-Henning Kamp <phk@critter.freebsd.dk>
Sender: owner-cvs-all@FreeBSD.ORG
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did for me.

In message <Pine.GSO.3.95q.990628103756.4320U-100000@elect8>, Nick Hibma writes:
>
>Does this solve the panic discussed in current?
>
>Nick
>
>
>On Mon, 28 Jun 1999, Kirk McKusick wrote:
>
> > mckusick    1999/06/28 00:55:01 PDT
> > 
> >   Modified files:
> >     sys/kern             kern_lock.c 
> >   Log:
> >   When requesting an exclusive lock with LK_NOWAIT, do not panic
> >   if LK_RECURSIVE is not set, as we will simply return that the
> >   lock is busy and not actually deadlock. This allows processes
> >   to use polling locks against buffers that they may already
> >   hold exclusively locked.
> >   
> >   Revision  Changes    Path
> >   1.27      +7 -5      src/sys/kern/kern_lock.c
> > 
> > 
> > 
>
>
>
>

--
Poul-Henning Kamp             FreeBSD coreteam member
phk@FreeBSD.ORG               "Real hackers run -current on their laptop."
FreeBSD -- It will take a long time before progress goes too far!


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