Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751502Ab0LMJqt (ORCPT ); Mon, 13 Dec 2010 04:46:49 -0500 Received: from mail-bw0-f45.google.com ([209.85.214.45]:43072 "EHLO mail-bw0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750862Ab0LMJqr (ORCPT ); Mon, 13 Dec 2010 04:46:47 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=NrKVwgfVWlS9aluDOVDWvE6V1ckaXaZ6frdasCu1jQdk0yDY3/GRnOCKa75GCY+mp3 dSW0eZoXtRygFOKy1b9J3NN2CEt6Yf8tM05XreEplhB4oB1AnZs3ntipy2h5KifKg+Pj ROsxOIHX+YvSS3YD10ikbLHDQ431hJttjrtEI= Message-ID: <4D05EBA4.60202@gmail.com> Date: Mon, 13 Dec 2010 10:47:16 +0100 From: Tejun Heo User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.9) Gecko/20100915 Lightning/1.0b2 Thunderbird/3.1.4 MIME-Version: 1.0 To: Shaohua Li CC: lkml , "hpa@zytor.com" , Andrew Morton , "sam@ravnborg.org" , "eric.dumazet@gmail.com" Subject: Re: [patch 2/3] add new macros to make percpu readmostly section correctly align References: <1291255347.12777.116.camel@sli10-conroe> <4D0243DD.3090507@gmail.com> <1292200886.2323.15.camel@sli10-conroe> In-Reply-To: <1292200886.2323.15.camel@sli10-conroe> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 727 Lines: 21 Hello, On 12/13/2010 01:41 AM, Shaohua Li wrote: >> Why add another set of macros? Can't you just make the default one >> aligned? > how to do it without changing all arch code? There isn't cache line size > macro for all arch which could be used in vmlinux.lds.h, IIRC. Can't we get around that with some ifdefferies? And even if we'll have to change lds on every arch, I think we better do it that way. It's not like the problem exists only on x86, right? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/