Date: Mon, 7 Mar 2011 16:16:13 -0500
From: Joe Korty <joe.korty@ccur.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] An RCU for SMP with a single CPU garbage collector
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Reply-To: Joe Korty <joe.korty@ccur.com>
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On Mon, Mar 07, 2011 at 04:01:57PM -0500, Paul E. McKenney wrote:
> Interesting!
> 
> But I would really prefer leveraging the existing RCU implementations
> to the extent possible.  Are the user-dedicated CPUs able to invoke
> system calls?  If so, something like Frederic's approach should permit
> the existing RCU implementations to operate normally.  If not, what is
> doing the RCU read-side critical sections on the dedicated CPUs?
> 
>                                                         Thanx, Paul

I haven't seen Frederic's patch.  Sorry I missed it!
It might have saved a bit of work...

I thought about the system call approach but rejected it.
Some (maybe many) customers needing dedicated CPUs will
have apps that never make any system calls at all.

Regards,
Joe
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