From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 980F1C17441 for ; Tue, 12 Nov 2019 13:33:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 708C221783 for ; Tue, 12 Nov 2019 13:33:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727229AbfKLNdv (ORCPT ); Tue, 12 Nov 2019 08:33:51 -0500 Received: from mx2.suse.de ([195.135.220.15]:50364 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725865AbfKLNdv (ORCPT ); Tue, 12 Nov 2019 08:33:51 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 64721B213; Tue, 12 Nov 2019 13:33:49 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id AC6B71E4AD2; Tue, 12 Nov 2019 14:33:48 +0100 (CET) Date: Tue, 12 Nov 2019 14:33:48 +0100 From: Jan Kara To: Andrew Morton Cc: ira.weiny@intel.com, Alexander Viro , Chris Mason , Josef Bacik , David Sterba , Jaegeuk Kim , Chao Yu , linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Trond Myklebust , Anna Schumaker , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-mm@kvack.org, Dave Chinner , Jan Kara Subject: Re: [PATCH 2/2] fs: Move swap_[de]activate to file_operations Message-ID: <20191112133348.GJ1241@quack2.suse.cz> References: <20191112003452.4756-1-ira.weiny@intel.com> <20191112003452.4756-3-ira.weiny@intel.com> <20191111164320.80f814161469055b14f27045@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191111164320.80f814161469055b14f27045@linux-foundation.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Mon 11-11-19 16:43:20, Andrew Morton wrote: > On Mon, 11 Nov 2019 16:34:52 -0800 ira.weiny@intel.com wrote: > > > From: Ira Weiny > > > > swap_activate() and swap_deactivate() have nothing to do with > > address spaces. We want to eventually make the address space operations > > dynamic to switch inode flags on the fly. > > What does this mean? See my reply to Christoph [1]. Ira wants to make switching inodes between DAX and non-DAX mode work which means switching also address_space_operations pointer in the mapping. Honza [1] lore.kernel.org/r/20191112133055.GI1241@quack2.suse.cz -- Jan Kara SUSE Labs, CR