From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S274889AbTGaVal (ORCPT ); Thu, 31 Jul 2003 17:30:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S274880AbTGaV2q (ORCPT ); Thu, 31 Jul 2003 17:28:46 -0400 Received: from e34.co.us.ibm.com ([32.97.110.132]:34969 "EHLO e34.co.us.ibm.com") by vger.kernel.org with ESMTP id S274877AbTGaV2L (ORCPT ); Thu, 31 Jul 2003 17:28:11 -0400 Date: Fri, 1 Aug 2003 03:01:03 +0530 From: Dipankar Sarma To: Andrew Morton Cc: rusty@rustcorp.com.au, andrea@suse.de, linux-kernel@vger.kernel.org, paulmck@us.ibm.com Subject: Re: [PATCH] RCU: Reduce size of rcu_head 1 of 2 Message-ID: <20030731213103.GB17709@in.ibm.com> Reply-To: dipankar@in.ibm.com References: <20030731185806.GC1990@in.ibm.com> <20030731134954.54108d95.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030731134954.54108d95.akpm@osdl.org> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 31, 2003 at 01:49:54PM -0700, Andrew Morton wrote: > Dipankar Sarma wrote: > > > > I have merged Rusty's original patch for reducing the size of > > rcu_heads by splitting the two main changes into two patches. > > There are probably a lot of data structures in which we could save 4 (or 8) > bytes by converting things from doubly linked to singly linked. > > And that's good, but given that at this time we are concentrating 100% on > stabilising 2.6 (aren't we?) I'll be letting these patches slide, thanks. The linked-list change is internal enough for a future backport from 2.7. The only concern here is the change in call_rcu() API. What would be a good way to manage that ? Thanks Dipankar