From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C7A8313E2B; Thu, 28 May 2026 04:06:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779941192; cv=none; b=jE8chQJrPN4rbOtVuELqV5/93n4Hemi2MbjcM/DOmeGYFBfZjgyZIWVzPz35lsoElktYJeq2HZODCcZuOo4aPs67lAd9Hsj/JPTq0ynKcvBgETNF735FwbfGsXfd3k7puJDHX/VJUQ5ocKbR3OKXrqX3A+JaDFkbhU8CzsPmHn4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779941192; c=relaxed/simple; bh=dwf1Frz49BcW8zHTGUJ7/c5ax//HXgsZhx/8B4vFU80=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ut4tM+7uiq3LwV1ZKV0IqI6b1NB0OBwfqYSHhLVlxIpGOjPq+GqkBRV7YwI2zgtRLs+rFtrCE65N1axap3Pui+CT/5HumxBOISyQC/Kja4QC+qEtJAJbEDpAHfTkRfd/GATyXv41wOBPWG4Tfr4syPPOBTKVpZ7/Vil1DmIKrTs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iLjlDQz+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iLjlDQz+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FE521F00A3A; Thu, 28 May 2026 04:06:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779941191; bh=cA76/PYw1pPj8n2hc9fHEPPWqFsIP0EVym6yQnBFCxU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=iLjlDQz+bwVuH+CLTRgxwCKHxBT6/CSFYZy5OGndfsskO37Nsv468yumlcUrD8ahQ JEkii97cPaPADyAY6OCOXP/SUNJYqWd9c8rlwHwxlRLbGwItizEw+nODpw4zYV7ctn RSD4m/k5gy5el5lTSWbFKgd4Cl5ABdpaw6VGtzyM5l1N2L7reBv4R7/MdrmI6yyRbK 8dthUojsqc1ueAFjThviKUdCRtEKynycQbUiJBBzAcTWD4pfcAJM/6i1Y97s0nvkjd n2/DwxZLcqX65h39sBadH/ebny2QFN7y/kSuVmJryQ7I2C4xRc7zYod60hSrSDWcAV 6HoR2T3wP6rRg== From: Anand Jain To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, zlang@redhat.com, hch@infradead.org Subject: [PATCH v6 09/11] fstests: verify exportfs file handles on cloned filesystems Date: Thu, 28 May 2026 12:05:40 +0800 Message-ID: <3d74747ec4149c9166ee9db301b8e4533f822085.1779939330.git.asj@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Ensure that exportfs can correctly decode file handles on a cloned filesystem across a mount cycle, by file handles generated on a cloned device remain valid after mount cycle. Signed-off-by: Anand Jain --- tests/generic/805 | 80 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/805.out | 2 ++ 2 files changed, 82 insertions(+) create mode 100644 tests/generic/805 create mode 100644 tests/generic/805.out diff --git a/tests/generic/805 b/tests/generic/805 new file mode 100644 index 000000000000..5827eee039df --- /dev/null +++ b/tests/generic/805 @@ -0,0 +1,80 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2026 Anand Jain . All Rights Reserved. +# +# FS QA Test No. 805 +# Verify that file handles encoded on a cloned filesystem remain valid and +# resolvable via open_by_handle across a mount cycle and mount order swap. + +. ./common/preamble + +_begin_fstest auto quick exportfs clone + +_require_test +_require_block_device $TEST_DEV +_require_exportfs +_require_loop +_require_test_program "open_by_handle" + +_cleanup() +{ + cd / + rm -r -f $tmp.* + _unmount $mnt1 2>/dev/null + _unmount $mnt2 2>/dev/null + _loop_image_destroy "${devs[@]}" 2> /dev/null +} + +# Create test dir and test files, encode file handles and store to tmp file +create_test_files() +{ + rm -rf $testdir + mkdir -p $testdir + $here/src/open_by_handle -cwp -o $tmp.handles_file $testdir $NUMFILES +} + +# Attempt to read and decode the saved file handles on the targeted mount point. +test_file_handles() +{ + local opt=$1 + local when=$2 + + echo test_file_handles after $when + $here/src/open_by_handle $opt -i $tmp.handles_file $mnt2 $NUMFILES +} + +# Setup base loop device and its clone +devs=() +_loop_image_create_clone devs +mkdir -p $TEST_DIR/$seq +mnt1=$TEST_DIR/$seq/mnt1 +mnt2=$TEST_DIR/$seq/mnt2 +mkdir -p $mnt1 +mkdir -p $mnt2 + +# Mount both identical UUID filesystems simultaneously +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[0]} $mnt1 || \ + _fail "Failed to mount dev1" +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[1]} $mnt2 || \ + _fail "Failed to mount dev2" + +NUMFILES=1 +testdir=$mnt2/testdir + +# Decode file handles of files/dir after cycle mount +create_test_files + +# Cycle mounts and reverse initialization sequence to check if +# file handle lookups are okay +_unmount $mnt1 +_unmount $mnt2 +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[1]} $mnt2 || \ + _fail "Failed to mount dev2" +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[0]} $mnt1 || \ + _fail "Failed to mount dev1" + +# Verify file handles can still be resolved post-mount-cycle +test_file_handles -rp "cycle mount" + +status=0 +exit diff --git a/tests/generic/805.out b/tests/generic/805.out new file mode 100644 index 000000000000..29b11ec77ffb --- /dev/null +++ b/tests/generic/805.out @@ -0,0 +1,2 @@ +QA output created by 805 +test_file_handles after cycle mount -- 2.43.0