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 2B5C94A3F1D; Tue, 1 Sep 2026 20:30:35 +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=1788294637; cv=none; b=cfPUorwVcLUD0bJWH/WB+EMHk1jGHZtQOuISDaeQadP3FSPZlrXfqXyP1kbBwD118T1bXDu1dAHc2/6LeipiWnEgR4y5nV9eopY4UQXmRcwsuutpiyiOYXaUFVwpjYFBMzDxpj5DN4jV5EgW3lxY+WS2yKxETMFkpQMLcl+rBgE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788294637; c=relaxed/simple; bh=6T6cm9p7xef6eTYRLkIy168YNjvqH+1p+bliQPcRg2k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZvYRQDpHMCMBsj6Yl26dA1KlqVn8pYm/NW8PwFnk3GtQIPHhveRgoxEamJIXNeDbWYxwUseKXq1omWtPPafpmHCH2BjFXQFbZETwoX2nitRy7JkQIG7lDfnAocFvZXVASJnX+7uNaQmibXZEiVO62SU43sfK/iRCcpaFzT0bDJg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RHlrdHe2; 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="RHlrdHe2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2F7C1F000E9; Tue, 1 Sep 2026 20:30:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788294635; bh=rKxIIP5PkuS4vkzJXkQJBUfKdiqUK3/TwzXzoEBcn1M=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=RHlrdHe2uQopFVcfoSEPzRjR43pmmEpmDSPwiJDme+xi+gzFee2Jj0X+9zoN4ns1i ZDLxilXfmQ+NAFxhia7IvlU858S2U/TeuzNtkr55yeqOBz9QfYZImWlE+Sk9GRB8mB QavpCtMFgNjICty5IbUB9euLCkPC1Kwvt+lkbgZdQKtMU/piMDdxiqriyljnf+4u2V bmFsnuxOyQJDdeZoiBZ52XgFSDgJZzoM0t3pteU/hJtPNux4IYdDfj+Qyz/kS1eGP9 mMnsdAjeUM1mEec1NmJuB7tRlzFLlWWSGKT64XpsiAMv+Is9bPqP1xNC3xoSf4Lr+g ClPu4+F1Gp/4w== Date: Wed, 2 Sep 2026 04:30:29 +0800 From: Zorro Lang To: Anand Jain Cc: fstests@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, djwong@kernel.org Subject: Re: [PATCH v8 11/13] fstests: verify exportfs file handles on cloned filesystems Message-ID: Mail-Followup-To: Anand Jain , fstests@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, djwong@kernel.org References: <7afe9c82cce1540ea0f8cc1f3d1306c24b6cc84d.1784949155.git.asj@kernel.org> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7afe9c82cce1540ea0f8cc1f3d1306c24b6cc84d.1784949155.git.asj@kernel.org> On Sat, Jul 25, 2026 at 03:39:08PM +0800, Anand Jain wrote: > 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]} $mnt2 || \ > + _fail "Failed to mount dev2" > + > +NUMFILES=1 NUMFILES=${LOAD_FACTOR} ? > +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 >