linux-kernel - Re: [RESEND][RFC PATCH v2] waitfd

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Date:	Sat, 10 Jan 2009 17:09:58 +0000
From:	Scott James Remnant <scott@...onical.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Casey Dahlin <cdahlin@...hat.com>,
	Roland McGrath <roland@...hat.com>,
	Ulrich Drepper <drepper@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [RESEND][RFC PATCH v2] waitfd

On Sat, 2009-01-10 at 17:19 +0100, Oleg Nesterov wrote:

> I am not sure we are talking about the same thing, but afaics poll() +
> signalfd can work to (say) reap the childs. Actually, ppoll() alone is
> enough.
> 
Last time I checked, ppoll() was not actually implemented across all
architectures in a manner that solved the race it was intended to solve.

I'd be delighted to learn that this had been fixed? :-)

Soctt
-- 
Scott James Remnant
scott@...onical.com

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