Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932669AbXA1OoD (ORCPT ); Sun, 28 Jan 2007 09:44:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932588AbXA1OoB (ORCPT ); Sun, 28 Jan 2007 09:44:01 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:33708 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932666AbXA1OoA (ORCPT ); Sun, 28 Jan 2007 09:44:00 -0500 Date: Sun, 28 Jan 2007 14:43:58 +0000 From: Christoph Hellwig To: Peter Zijlstra Cc: Andrew Morton , linux-kernel@vger.kernel.org, Ingo Molnar Subject: Re: [PATCH 4/7] fs: break the file_list_lock for sb->s_files Message-ID: <20070128144358.GC16552@infradead.org> Mail-Followup-To: Christoph Hellwig , Peter Zijlstra , Andrew Morton , linux-kernel@vger.kernel.org, Ingo Molnar References: <20070128115118.837777000@programming.kicks-ass.net> <20070128120510.090289000@programming.kicks-ass.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070128120510.090289000@programming.kicks-ass.net> User-Agent: Mutt/1.4.2.2i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 644 Lines: 14 On Sun, Jan 28, 2007 at 12:51:22PM +0100, Peter Zijlstra wrote: > Break the protection of sb->s_files out from under the global file_list_lock. > > sb->s_files is converted to a lock_list. furthermore to prevent the > lock_list_head of getting too contended with concurrent add operations > the add is buffered in per cpu filevecs. NACK. Please don't start using lockdep internals in core code. - 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/