From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756578Ab0BJV3o (ORCPT ); Wed, 10 Feb 2010 16:29:44 -0500 Received: from intermatrixgroup.ru ([195.178.208.66]:57085 "EHLO tservice.net.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750844Ab0BJV3m (ORCPT ); Wed, 10 Feb 2010 16:29:42 -0500 Date: Thu, 11 Feb 2010 00:29:33 +0300 From: Evgeniy Polyakov To: Al Viro Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [WTF] ... is going on with current->fs->{root,mnt} accesses in pohmelfs Message-ID: <20100210212933.GA19919@ioremap.net> References: <20100210100428.GL30031@ZenIV.linux.org.uk> <20100210101246.GA3509@ioremap.net> <20100210102422.GM30031@ZenIV.linux.org.uk> <20100210104515.GA6207@ioremap.net> <20100210110011.GN30031@ZenIV.linux.org.uk> <20100210111115.GA8376@ioremap.net> <20100210115938.GO30031@ZenIV.linux.org.uk> <20100210133007.GA17744@ioremap.net> <20100210210248.GP30031@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100210210248.GP30031@ZenIV.linux.org.uk> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 10, 2010 at 09:02:48PM +0000, Al Viro (viro@ZenIV.linux.org.uk) wrote: > Which would be... ? E.g. between writepages() and rename(). What serializes > your write_inode_create() wrt renames? IOW, how can the server decide that > data from writepages() should go to the same object regardless of the > rename? rename and some other metadata operations as well as write itself request remote lock (if not grabbed already), acknowledge forces writeback to old path. -- Evgeniy Polyakov