linux-kernel - Re: dyntick-hpc and RCU

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Message-ID: <AANLkTimvMbuN7v5rwZXFywe3w-Kh_F8DVajf3JjN28V=@mail.gmail.com>
Date:	Fri, 5 Nov 2010 16:06:35 -0400
From:	Dhaval Giani <dhaval.giani@...il.com>
To:	paulmck@...ux.vnet.ibm.com
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	mathieu.desnoyers@...icios.com, dhowells@...hat.com,
	loic.minier@...aro.org, tglx@...utronix.de, peterz@...radead.org,
	linux-kernel@...r.kernel.org, josh@...htriplett.org,
	jim.houston@...cast.net
Subject: Re: dyntick-hpc and RCU

[Adding Jim to the cc]

On Fri, Nov 5, 2010 at 11:06 AM, Paul E. McKenney
<paulmck@...ux.vnet.ibm.com> wrote:
> On Fri, Nov 05, 2010 at 06:38:17AM +0100, Frederic Weisbecker wrote:
>> 2010/11/5 Frederic Weisbecker <fweisbec@...il.com>:
>> > For now #3 seems to me more viable (with one of the adds I proposed).
>>
>> Doh, but I forgot it's not preemptable! So #2 looks then more viable.
>> Unless we can tweak #3 into getting it preemptable.
>
> There are ways of getting preemptiblity working.  This might not be
> all that big a modification to TREE_PREEMPT_RCU, now that I think
> of it.
>
>                                                        Thanx, Paul
>
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