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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 5C524C46470 for ; Thu, 16 May 2019 14:23:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2D8FB20833 for ; Thu, 16 May 2019 14:23:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726889AbfEPOXp (ORCPT ); Thu, 16 May 2019 10:23:45 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55898 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726692AbfEPOXp (ORCPT ); Thu, 16 May 2019 10:23:45 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D2AD93083392; Thu, 16 May 2019 14:23:44 +0000 (UTC) Received: from horse.redhat.com (unknown [10.18.25.29]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8F70F5D6A9; Thu, 16 May 2019 14:23:42 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 20E57220386; Thu, 16 May 2019 10:23:42 -0400 (EDT) Date: Thu, 16 May 2019 10:23:42 -0400 From: Vivek Goyal To: Dan Williams Cc: linux-fsdevel , Linux Kernel Mailing List , KVM list , linux-nvdimm , Steven Whitehouse , "Dr. David Alan Gilbert" , Stefan Hajnoczi , Miklos Szeredi Subject: Re: [PATCH v2 12/30] dax: remove block device dependencies Message-ID: <20190516142342.GA31638@redhat.com> References: <20190515192715.18000-1-vgoyal@redhat.com> <20190515192715.18000-13-vgoyal@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.3 (2019-02-01) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Thu, 16 May 2019 14:23:45 +0000 (UTC) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Wed, May 15, 2019 at 05:21:51PM -0700, Dan Williams wrote: [..] > It just seems to me that we should stop pretending that the > filesystem-dax facility requires block devices and try to move this > functionality to generically use a dax device across all interfaces. That sounds reasonable and will help with our use case where we don't have the block device at all. Vivek