From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with ESMTP id 181EC6B0011 for ; Thu, 28 Apr 2011 11:40:18 -0400 (EDT) Received: by fxm18 with SMTP id 18so2791888fxm.14 for ; Thu, 28 Apr 2011 08:40:15 -0700 (PDT) Date: Thu, 28 Apr 2011 17:40:12 +0200 From: Tejun Heo Subject: Re: [PATCH] percpu: preemptless __per_cpu_counter_add Message-ID: <20110428154012.GG16552@htj.dyndns.org> References: <20110428142331.GA16552@htj.dyndns.org> <20110428144446.GC16552@htj.dyndns.org> <20110428145657.GD16552@htj.dyndns.org> <20110428151203.GE16552@htj.dyndns.org> <20110428153101.GF16552@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110428153101.GF16552@htj.dyndns.org> Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Shaohua Li , Eric Dumazet , "akpm@linux-foundation.org" , "linux-mm@kvack.org" On Thu, Apr 28, 2011 at 05:31:01PM +0200, Tejun Heo wrote: > > The hugely expensive _sum() is IMHO pretty useless given the above. It is > > a function that is called with the *hope* of getting a more accurate > > result. ... > Christoph, I'm sorry but I really can't explain it any better and am > out of this thread. If you still wanna proceed, you'll need to route > the patches yourself. Please keep me cc'd. Oh, another way to proceed would be, if _sum() is as useless as you suggested above, remove _sum() first and see how that goes. If that flies, there will be no reason to argue over anything, right? Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org