linux-kernel - Re: [RFC git tree] Userspace RCU (urcu) for Linux (repost)

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Message-ID: <20090209173427.GC6802@linux.vnet.ibm.com>
Date:	Mon, 9 Feb 2009 09:34:27 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Bert Wesarg <bert.wesarg@...glemail.com>
Cc:	Mathieu Desnoyers <compudj@...stal.dyndns.org>,
	ltt-dev@...ts.casi.polymtl.ca, linux-kernel@...r.kernel.org,
	Robert Wisniewski <bob@...son.ibm.com>
Subject: Re: [RFC git tree] Userspace RCU (urcu) for Linux (repost)

On Mon, Feb 09, 2009 at 06:19:45PM +0100, Bert Wesarg wrote:
> On Mon, Feb 9, 2009 at 14:16, Paul E. McKenney
> <paulmck@...ux.vnet.ibm.com> wrote:
> > On Sun, Feb 08, 2009 at 11:53:52PM -0500, Mathieu Desnoyers wrote:
> >> Yes, I guess the signal is not so bad.
> >
> > Now if there were a /proc entry that listed out the tids of the
> > currently running threads, then it might be possible to do something,
> > especially for applications with many more threads than CPUs.
>
> Do you mean something like: `ls /proc/$pid/tasks/*`? Or is this not
> atomic enough?

Won't that give me all the threads rather than only the ones currently
running?

							Thanx, Paul
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