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Subject: Re: [PATCH] 2.4.18-rc2 Fix for get_pid hang
To: plars@austin.ibm.com (Paul Larson)
Date: Mon, 25 Feb 2002 14:20:46 +0000 (GMT)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox),
        marcelo@conectiva.com.br (Marcelo Tosati),
        linux-kernel@vger.kernel.org (lkml)
In-Reply-To: <1014644491.18245.471.camel@plars.austin.ibm.com> from "Paul Larson" at Feb 25, 2002 07:41:30 AM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> > to less than the number of pids available. You seem to be fixing a non
> > problem by adding branches to the innards of a loop.
> > 
> That was my original thought, but as Rik and WLI already pointed out, it
> won't account for process groups, tgids, etc.  This isn't a purely
> theoretical problem either, as we have run up against it many times.

Agreed - and I don't have any better solutions except 32bit pid_t - which
I suspect one day we are going to need. At least the O(1) scheduler now
makes it feasible 8)
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