From patchwork Fri May 25 22:00:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ross Zwisler X-Patchwork-Id: 10428621 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5EA7D6038C for ; Fri, 25 May 2018 22:02:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5073529816 for ; Fri, 25 May 2018 22:02:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 454CF29818; Fri, 25 May 2018 22:02:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E792B29817 for ; Fri, 25 May 2018 22:02:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030558AbeEYWCB (ORCPT ); Fri, 25 May 2018 18:02:01 -0400 Received: from mga18.intel.com ([134.134.136.126]:17944 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030599AbeEYWBD (ORCPT ); Fri, 25 May 2018 18:01:03 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 May 2018 15:01:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,441,1520924400"; d="scan'208";a="231900889" Received: from theros.lm.intel.com ([10.232.112.164]) by fmsmga006.fm.intel.com with ESMTP; 25 May 2018 15:01:01 -0700 From: Ross Zwisler To: Toshi Kani , Mike Snitzer , dm-devel@redhat.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, Ross Zwisler , linux-xfs@vger.kernel.org Subject: [PATCH resend 6/7] dm-snap: remove unnecessary direct_access() stub Date: Fri, 25 May 2018 16:00:54 -0600 Message-Id: <20180525220055.18920-7-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180525220055.18920-1-ross.zwisler@linux.intel.com> References: <20180525220055.18920-1-ross.zwisler@linux.intel.com> Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This stub was added so that we could use dm-snap with DM_TYPE_DAX_BIO_BASED mode devices. That mode and the transition issues associated with it no longer exist, so we can remove this dead code. Signed-off-by: Ross Zwisler --- drivers/md/dm-snap.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 216035be5661..0143b158d52d 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -2305,13 +2305,6 @@ static int origin_map(struct dm_target *ti, struct bio *bio) return do_origin(o->dev, bio); } -static long origin_dax_direct_access(struct dm_target *ti, pgoff_t pgoff, - long nr_pages, void **kaddr, pfn_t *pfn) -{ - DMWARN("device does not support dax."); - return -EIO; -} - /* * Set the target "max_io_len" field to the minimum of all the snapshots' * chunk sizes. @@ -2371,7 +2364,6 @@ static struct target_type origin_target = { .postsuspend = origin_postsuspend, .status = origin_status, .iterate_devices = origin_iterate_devices, - .direct_access = origin_dax_direct_access, }; static struct target_type snapshot_target = {