From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759037AbXIXOfZ (ORCPT ); Mon, 24 Sep 2007 10:35:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752897AbXIXOfO (ORCPT ); Mon, 24 Sep 2007 10:35:14 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:34745 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752856AbXIXOfM (ORCPT ); Mon, 24 Sep 2007 10:35:12 -0400 Date: Mon, 24 Sep 2007 07:34:47 -0700 From: Arjan van de Ven To: Andrew Morton Cc: Dave Hansen , linux-kernel@vger.kernel.org, hch@infradead.org Subject: Re: [PATCH 24/25] r/o bind mounts: track number of mount writers Message-ID: <20070924073447.5669fc0d@laptopd505.fenrus.org> In-Reply-To: <20070923231713.f81ee0db.akpm@linux-foundation.org> References: <20070920195249.852667D5@kernel> <20070920195320.38C8E20D@kernel> <20070923231713.f81ee0db.akpm@linux-foundation.org> Organization: Intel X-Mailer: Claws Mail 3.0.1 (GTK+ 2.12.0; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 > It look like a false positive to me, but really, for a patchset of > this complexity and maturity I cannot fathom how it could have > escaped any lockdep testing. the code tries to implement per cpu spinlocks, or rather it tries to bring back the brlocks from way past.... cute. we can educate lockdep about this quite easily; but isn't there some primitive already in existence that we can use?