From patchwork Fri Dec 4 01:45:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 1410766 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CnFtg1qTrz9sVH for ; Fri, 4 Dec 2020 12:46:51 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726810AbgLDBqe (ORCPT ); Thu, 3 Dec 2020 20:46:34 -0500 Received: from mga01.intel.com ([192.55.52.88]:48195 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725885AbgLDBqe (ORCPT ); Thu, 3 Dec 2020 20:46:34 -0500 IronPort-SDR: Nr1XHOaXJdH9XjWLkBjyTbWdoKTmf0TNK3z55S8/oD3ZbfvC3djXiDHv9E9SgGYn4yaA+5EVG5 U3TFWdNEZwIw== X-IronPort-AV: E=McAfee;i="6000,8403,9824"; a="191550560" X-IronPort-AV: E=Sophos;i="5.78,390,1599548400"; d="scan'208";a="191550560" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Dec 2020 17:45:53 -0800 IronPort-SDR: pdrev79caLf9OpaDWWhlKyXnHidKdPFDKTc5unyM12YRNkHjmdcuieu7P4FJvRsIqmKWdXwZky 1D3asWomwszw== X-IronPort-AV: E=Sophos;i="5.78,390,1599548400"; d="scan'208";a="550753253" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Dec 2020 17:45:52 -0800 From: ira.weiny@intel.com To: fstests@vger.kernel.org, Christoph Hellwig , Eric Sandeen Cc: Ira Weiny , linux-kernel@vger.kernel.org, "Darrick J. Wong" , Dan Williams , Dave Chinner , "Theodore Y. Ts'o" , Jan Kara , Jeff Moyer , linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, David Howells Subject: [PATCH V3] common/rc: Fix _check_s_dax() Date: Thu, 3 Dec 2020 17:45:50 -0800 Message-Id: <20201204014550.1736306-1-ira.weiny@intel.com> X-Mailer: git-send-email 2.28.0.rc0.12.gb6a658bd00c9 In-Reply-To: <20201202214629.1563760-1-ira.weiny@intel.com> References: <20201202214629.1563760-1-ira.weiny@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org From: Ira Weiny There is a conflict with the user visible statx bits 'mount root' and 'dax'. The kernel is changing the dax bit to correct this conflict.[1] Adjust _check_s_dax() to use the new bit. Because DAX tests do not run on root mounts, STATX_ATTR_MOUNT_ROOT should always be 0. Therefore, check for the old flag and fail the test if that occurs. [1] https://lore.kernel.org/lkml/3e28d2c7-fbe5-298a-13ba-dcd8fd504666@redhat.com/ Signed-off-by: Ira Weiny Reviewed-by: Christoph Hellwig --- Changes from V2: As suggested by Christoph and Eric: Fail the test with a hint as to why the wrong bit may be set. common/rc | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/common/rc b/common/rc index b5a504e0dcb4..5911a6c89a78 100644 --- a/common/rc +++ b/common/rc @@ -3221,10 +3221,27 @@ _check_s_dax() local exp_s_dax=$2 local attributes=$($XFS_IO_PROG -c 'statx -r' $target | awk '/stat.attributes / { print $3 }') + + # The original attribute bit value, STATX_ATTR_DAX (0x2000), conflicted + # with STATX_ATTR_MOUNT_ROOT. Therefore, STATX_ATTR_DAX was changed to + # 0x00200000. + # + # Because DAX tests do not run on root mounts, STATX_ATTR_MOUNT_ROOT + # should always be 0. Check for the old flag and fail the test if that + # occurs. + + if [ $(( attributes & 0x2000 )) -ne 0 ]; then + echo "$target has an unexpected STATX_ATTR_MOUNT_ROOT flag set" + echo "which used to be STATX_ATTR_DAX" + echo " This test should not be running on the root inode..." + echo " Does the kernel have the following patch?" + echo " 72d1249e2ffd uapi: fix statx attribute value overlap for DAX & MOUNT_ROOT" + fi + if [ $exp_s_dax -eq 0 ]; then - (( attributes & 0x2000 )) && echo "$target has unexpected S_DAX flag" + (( attributes & 0x00200000 )) && echo "$target has unexpected S_DAX flag" else - (( attributes & 0x2000 )) || echo "$target doesn't have expected S_DAX flag" + (( attributes & 0x00200000 )) || echo "$target doesn't have expected S_DAX flag" fi }