Date: Tue, 8 Mar 2011 10:57:10 -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" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] An RCU for SMP with a single CPU garbage collector
Message-ID: <20110308155710.GA15138@tsunami.ccur.com>
Reply-To: Joe Korty <joe.korty@ccur.com>
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On Tue, Mar 08, 2011 at 04:07:42AM -0500, Paul E. McKenney wrote:
>> Thinking about it some more, the tap-into-syscall approach might
>> work in my implementation, in which case the tap-into-preempt-enable
>> code could go away.
> 
> OK, please let me know how that goes!
> 
>> Nice thing about RCU, the algorithms are infinitely mallable :)
> 
> Just trying to keep the code size finite.  ;-)

I hope to get to it this afternoon!  I especially like
the lockless nature of JRCU, and that the dedicated cpus
are not loaded down with callback inovcations either.
Not sure how to support the PREEMPT_RCU mode though; so
if Fredrick is planning to support that, that alone would
make his approach the very best.

Joe
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