Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261383AbVEIOZ3 (ORCPT ); Mon, 9 May 2005 10:25:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261401AbVEIOZ2 (ORCPT ); Mon, 9 May 2005 10:25:28 -0400 Received: from mail.tv-sign.ru ([213.234.233.51]:20911 "EHLO several.ru") by vger.kernel.org with ESMTP id S261388AbVEIOYz (ORCPT ); Mon, 9 May 2005 10:24:55 -0400 Message-ID: <427F746E.612E2CB9@tv-sign.ru> Date: Mon, 09 May 2005 18:32:14 +0400 From: Oleg Nesterov X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.2.20 i686) X-Accept-Language: en MIME-Version: 1.0 To: Ingo Molnar Cc: "Perez-Gonzalez, Inaky" , linux-kernel@vger.kernel.org, Daniel Walker Subject: Re: [PATCH] Priority Lists for the RT mutex References: <427C6D7D.878935F1@tv-sign.ru> <20050509073043.GA12976@elte.hu> <427F1A99.58BCCB88@tv-sign.ru> <20050509091133.GA25959@elte.hu> Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 689 Lines: 16 Ingo Molnar wrote: > > What would be nice to achieve are [low-cost] reductions of the size of > struct rt_mutex (in include/linux/rt_lock.h), upon which all other > PI-aware locking objects are based. Right now it's 9 words, of which > struct plist is 5 words. Would be nice to trim this to 8 words - which > would give a nice round size of 32 bytes on 32-bit. Yes, the size of pl_head in that patch is 4 words, it doesn't have ->prio. Oleg. - 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/