From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934501AbaJ1D5A (ORCPT ); Mon, 27 Oct 2014 23:57:00 -0400 Received: from mail-qa0-f47.google.com ([209.85.216.47]:43664 "EHLO mail-qa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932401AbaJ1D4y (ORCPT ); Mon, 27 Oct 2014 23:56:54 -0400 Date: Mon, 27 Oct 2014 23:56:51 -0400 From: Tejun Heo To: Zhihui Zhang Cc: cl@linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] [percpu] Make the unit size of the first chunk the same as other chunks Message-ID: <20141028035651.GB4751@mtj.dyndns.org> References: <1414249558-6677-1-git-send-email-zzhsuny@gmail.com> <20141027140826.GJ4436@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 27, 2014 at 07:32:47PM -0400, Zhihui Zhang wrote: > I am trying to make each CPU to have a full unit size in the first > chunk, same as in all other chunks. Does this make sense? And why are you trying to do that? Unit size may be highly variable. Why would it make sense to reserve memory area according to a value which can fluctuate for reasons completely unrelated to actual percpu memory usage? Thanks. -- tejun