From: Chris Mason <mason@suse.de>
To: Dimitri Sivanich <sivanich@sgi.com>
Subject: Re: [PATCH] Enable remote RCU callback processing on SMP systems
Date: Wed, 22 Feb 2006 15:23:22 -0500
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Cc: Andrew Morton <akpm@osdl.org>, linux-kernel <linux-kernel@vger.kernel.org>,
       "Paul E. McKenney" <paulmck@us.ibm.com>,
       Dipankar Sarma <dipankar@in.ibm.com>, okir@suse.de
References: <20060206145137.GA30059@sgi.com>
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On Monday 06 February 2006 09:51, Dimitri Sivanich wrote:
> Reposting this patch that I'd submitted back on 1/26.  Any thoughts on
> the basic approach in addition to the code itself?  Is it possible to
> get this applied?  Note that this should have negligible effect on
> those not configuring remote rcu callback processing.

Aside from the possible race we talked about in __rcu_process_callbacks, I 
don't have huge objections here.  But if the underlying problem is the cost 
of kmem_cache_free, would it be better to limit that instead of trying to 
push the latency around to specific cpus?

-chris
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