Date: Tue, 13 Nov 2012 13:20:34 -0800
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Tim Sander <tim01@vlsi.informatik.tu-darmstadt.de>
Cc: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
        mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
        akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
        josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de,
        peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu,
        dhowells@redhat.com, edumazet@google.com, darren@dvhart.com,
        fweisbec@gmail.com, sbw@mit.edu, patches@linaro.org
Subject: Re: Does anyone use CONFIG_TINY_PREEMPT_RCU?
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On Tue, Nov 13, 2012 at 09:22:29PM +0100, Tim Sander wrote:
> Hi Paul
> > I know of people using TINY_RCU, TREE_RCU, and TREE_PREEMPT_RCU, but I
> > have not heard of anyone using TINY_PREEMPT_RCU for whom TREE_PREEMPT_RCU
> > was not a viable option (in contrast, the people running Linux on
> > tiny-memmory systems typically use TINY_RCU).  Of course, if no one
> > really needs it, the proper thing to do is to remove it.
> > 
> > So, if you need TINY_PREEMPT_RCU, please let me know.  Otherwise, I will
> > remove it, probably in the 3.9 timeframe.
> I am using TINY_PREEMPT_RCU on the i.mx35 platform. I am currently on 3.4-rt 
> since the 3.6 compile failed due to for my config? Some strange device tree 
> stuff which i haven't had the time to figure out why.

OK, how much memory does your device have?

							Thanx, Paul

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