Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754632AbZLPAsg (ORCPT ); Tue, 15 Dec 2009 19:48:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751544AbZLPAse (ORCPT ); Tue, 15 Dec 2009 19:48:34 -0500 Received: from one.firstfloor.org ([213.235.205.2]:55191 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754206AbZLPAse (ORCPT ); Tue, 15 Dec 2009 19:48:34 -0500 Date: Wed, 16 Dec 2009 01:48:26 +0100 From: Andi Kleen To: KOSAKI Motohiro Cc: Andi Kleen , Al Viro , linux-kernel@vger.kernel.org, Trond.Myklebust@netapp.com Subject: Re: NFS lockdep lock misordering mmap_sem<->i_mutex_key with 2.6.32-git1 Message-ID: <20091216004826.GA3622@basil.fritz.box> References: <20091215222134.GA27892@ZenIV.linux.org.uk> <20091215233841.GE22392@basil.fritz.box> <20091216085051.CDE2.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091216085051.CDE2.A69D9226@jp.fujitsu.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 605 Lines: 16 > afaik, no revalidate mean "I don't mind the file was already removed > at server, I only care client handle". > > What's happen if we mmap removed file? I thought NFS only provided consistency around open/close/msync, not around mmap? I've never been aware of mmap being a synchronization point. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/