[07/12] btrfs: test snapshotting encrypted subvol

Message ID	9a17afb133849c2321bb98c07c48cff2aaf1d87a.1696969376.git.josef@toxicpanda.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <fstests-owner@vger.kernel.org> From: Josef Bacik <josef@toxicpanda.com> To: fstests@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-btrfs@vger.kernel.org Cc: Sweet Tea Dorminy <sweettea-kernel@dorminy.me> Subject: [PATCH 07/12] btrfs: test snapshotting encrypted subvol Date: Tue, 10 Oct 2023 16:26:00 -0400 Message-ID: <9a17afb133849c2321bb98c07c48cff2aaf1d87a.1696969376.git.josef@toxicpanda.com> In-Reply-To: <cover.1696969376.git.josef@toxicpanda.com> References: <cover.1696969376.git.josef@toxicpanda.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	fstests: fscrypt test updates \| expand [00/12] fstests: fscrypt test updates [01/12] common/encrypt: separate data and inode nonces [02/12] common/encrypt: add btrfs to get_encryption_*nonce [03/12] common/encrypt: add btrfs to get_ciphertext_filename [04/12] common/encrypt: enable making a encrypted btrfs filesystem [05/12] common/verity: explicitly don't allow btrfs encryption [06/12] btrfs: add simple test of reflink of encrypted data [07/12] btrfs: test snapshotting encrypted subvol [08/12] fstests: properly test for v1 encryption policies in encrypt tests [09/12] fstests: split generic/580 into two tests [10/12] fstests: split generic/581 into two tests [11/12] fstests: split generic/613 into two tests [12/12] fstest: add a fsstress+fscrypt test

Message ID

9a17afb133849c2321bb98c07c48cff2aaf1d87a.1696969376.git.josef@toxicpanda.com (mailing list archive)

State

New, archived

Headers

From: Josef Bacik <josef@toxicpanda.com>
To: fstests@vger.kernel.org, linux-fscrypt@vger.kernel.org,
        linux-btrfs@vger.kernel.org
Cc: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Subject: [PATCH 07/12] btrfs: test snapshotting encrypted subvol
Date: Tue, 10 Oct 2023 16:26:00 -0400
Message-ID: 
 <9a17afb133849c2321bb98c07c48cff2aaf1d87a.1696969376.git.josef@toxicpanda.com>
In-Reply-To: <cover.1696969376.git.josef@toxicpanda.com>
References: <cover.1696969376.git.josef@toxicpanda.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

fstests: fscrypt test updates | expand

Commit Message

Josef Bacik Oct. 10, 2023, 8:26 p.m. UTC

From: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>

Make sure that snapshots of encrypted data are readable and writeable.

Test deliberately high-numbered to not conflict.

Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
---
 tests/btrfs/614     |  76 ++++++++++++++++++++++++++++++
 tests/btrfs/614.out | 111 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 187 insertions(+)
 create mode 100755 tests/btrfs/614
 create mode 100644 tests/btrfs/614.out

Comments

Anand Jain Oct. 31, 2023, 2:40 p.m. UTC | #1

On 11/10/2023 04:26, Josef Bacik wrote:
> From: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
> 
> Make sure that snapshots of encrypted data are readable and writeable.
> 
> Test deliberately high-numbered to not conflict.
> 
> Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>

Looks good to me.

Reviewed-by: Anand Jain <anand.jain@oracle.com>

Thanks, Anand

Filipe Manana Oct. 31, 2023, 3:39 p.m. UTC | #2

On Tue, Oct 10, 2023 at 9:26 PM Josef Bacik <josef@toxicpanda.com> wrote:
>
> From: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
>
> Make sure that snapshots of encrypted data are readable and writeable.
>
> Test deliberately high-numbered to not conflict.
>
> Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
> ---
>  tests/btrfs/614     |  76 ++++++++++++++++++++++++++++++
>  tests/btrfs/614.out | 111 ++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 187 insertions(+)
>  create mode 100755 tests/btrfs/614
>  create mode 100644 tests/btrfs/614.out
>
> diff --git a/tests/btrfs/614 b/tests/btrfs/614
> new file mode 100755
> index 00000000..87dd27f9
> --- /dev/null
> +++ b/tests/btrfs/614
> @@ -0,0 +1,76 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2023 Meta Platforms, Inc.  All Rights Reserved.
> +#
> +# FS QA Test 614
> +#
> +# Try taking a snapshot of an encrypted subvolume. Make sure the snapshot is
> +# still readable. Rewrite part of the subvol with the same data; make sure it's
> +# still readable.
> +#
> +. ./common/preamble
> +_begin_fstest auto encrypt

Should be in the 'snapshot' and 'subvol' groups too, as it creates a
snapshot and a subvolume.
Also maybe in the 'quick' group too, see the comments further below.

> +
> +# Import common functions.
> +. ./common/encrypt
> +. ./common/filter
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +
> +_require_test

The test device is not used, so this can go away.

> +_require_scratch
> +_require_scratch_encryption -v 2
> +_require_command "$KEYCTL_PROG" keyctl
> +
> +_scratch_mkfs_encrypted &>> $seqres.full
> +_scratch_mount
> +
> +udir=$SCRATCH_MNT/reference
> +dir=$SCRATCH_MNT/subvol
> +dir2=$SCRATCH_MNT/subvol2
> +$BTRFS_UTIL_PROG subvolume create $dir >> $seqres.full
> +mkdir $udir
> +
> +_set_encpolicy $dir $TEST_KEY_IDENTIFIER
> +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
> +
> +# get files with lots of extents by using backwards writes.
> +for j in `seq 0 50`; do
> +       for i in `seq 20 -1 1`; do
> +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> +               $dir/foo-$j >> $seqres.full | _filter_xfs_io
> +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> +               $udir/foo-$j >> $seqres.full | _filter_xfs_io
> +       done
> +done
> +
> +$BTRFS_UTIL_PROG subvolume snapshot $dir $dir2 | _filter_scratch
> +
> +_scratch_remount
> +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
> +sleep 30

What's the sleep for?
Is the 30 seconds to wait for a transaction commit?
If it is then I'd rather mount the fs with -o commit=3 (or some other
low value) and then "sleep 3" to make the test run much faster.
A comment explaining why the sleep is there, what is its purpose,
should also be in place.

> +echo "Diffing $dir and $dir2"
> +diff $dir $dir2
> +
> +echo "Rewriting $dir2 partly"
> +# rewrite half of each file in the snapshot
> +for j in `seq 0 50`; do
> +       for i in `seq 10 -1 1`; do
> +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> +               $dir2/foo-$j >> $seqres.full | _filter_xfs_io
> +       done
> +done
> +
> +echo "Diffing $dir and $dir2"
> +diff $dir $dir2
> +
> +echo "Dropping key and diffing"
> +_rm_enckey $SCRATCH_MNT $TEST_KEY_IDENTIFIER
> +diff $dir $dir2 |& _filter_scratch | _filter_nokey_filenames
> +
> +$BTRFS_UTIL_PROG subvolume delete $dir > /dev/null 2>&1

What's the purpose of this subvolume delete?
It's ignoring stdout and stderr, so it doesn't care whether it
succeeds or fails, and we
don't do any tests/checks after it.

Thanks.



> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/btrfs/614.out b/tests/btrfs/614.out
> new file mode 100644
> index 00000000..390807e8
> --- /dev/null
> +++ b/tests/btrfs/614.out
> @@ -0,0 +1,111 @@
> +QA output created by 614
> +Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
> +Create a snapshot of 'SCRATCH_MNT/subvol' in 'SCRATCH_MNT/subvol2'
> +Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
> +Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
> +Rewriting /mnt/scratch/subvol2 partly
> +Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
> +Dropping key and diffing
> +Removed encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
> --
> 2.41.0
>

Anand Jain Nov. 27, 2023, 2:16 p.m. UTC | #3

On 31/10/2023 23:39, Filipe Manana wrote:
> On Tue, Oct 10, 2023 at 9:26 PM Josef Bacik <josef@toxicpanda.com> wrote:
>>
>> From: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
>>
>> Make sure that snapshots of encrypted data are readable and writeable.
>>
>> Test deliberately high-numbered to not conflict.
>>
>> Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
>> ---
>>   tests/btrfs/614     |  76 ++++++++++++++++++++++++++++++
>>   tests/btrfs/614.out | 111 ++++++++++++++++++++++++++++++++++++++++++++
>>   2 files changed, 187 insertions(+)
>>   create mode 100755 tests/btrfs/614
>>   create mode 100644 tests/btrfs/614.out
>>
>> diff --git a/tests/btrfs/614 b/tests/btrfs/614
>> new file mode 100755
>> index 00000000..87dd27f9
>> --- /dev/null
>> +++ b/tests/btrfs/614
>> @@ -0,0 +1,76 @@
>> +#! /bin/bash
>> +# SPDX-License-Identifier: GPL-2.0
>> +# Copyright (c) 2023 Meta Platforms, Inc.  All Rights Reserved.
>> +#
>> +# FS QA Test 614
>> +#
>> +# Try taking a snapshot of an encrypted subvolume. Make sure the snapshot is
>> +# still readable. Rewrite part of the subvol with the same data; make sure it's
>> +# still readable.
>> +#
>> +. ./common/preamble
>> +_begin_fstest auto encrypt
> 
> Should be in the 'snapshot' and 'subvol' groups too, as it creates a
> snapshot and a subvolume.
> Also maybe in the 'quick' group too, see the comments further below.
> 
>> +
>> +# Import common functions.
>> +. ./common/encrypt
>> +. ./common/filter
>> +
>> +# real QA test starts here
>> +_supported_fs btrfs
>> +
>> +_require_test
> 
> The test device is not used, so this can go away.
> 
>> +_require_scratch
>> +_require_scratch_encryption -v 2
>> +_require_command "$KEYCTL_PROG" keyctl
>> +
>> +_scratch_mkfs_encrypted &>> $seqres.full
>> +_scratch_mount
>> +
>> +udir=$SCRATCH_MNT/reference
>> +dir=$SCRATCH_MNT/subvol
>> +dir2=$SCRATCH_MNT/subvol2
>> +$BTRFS_UTIL_PROG subvolume create $dir >> $seqres.full
>> +mkdir $udir
>> +
>> +_set_encpolicy $dir $TEST_KEY_IDENTIFIER
>> +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
>> +
>> +# get files with lots of extents by using backwards writes.
>> +for j in `seq 0 50`; do
>> +       for i in `seq 20 -1 1`; do
>> +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
>> +               $dir/foo-$j >> $seqres.full | _filter_xfs_io
>> +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
>> +               $udir/foo-$j >> $seqres.full | _filter_xfs_io
>> +       done
>> +done
>> +
>> +$BTRFS_UTIL_PROG subvolume snapshot $dir $dir2 | _filter_scratch
>> +
>> +_scratch_remount
>> +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
>> +sleep 30
> 
> What's the sleep for?
> Is the 30 seconds to wait for a transaction commit?
> If it is then I'd rather mount the fs with -o commit=3 (or some other
> low value) and then "sleep 3" to make the test run much faster.
> A comment explaining why the sleep is there, what is its purpose,
> should also be in place.
> 
>> +echo "Diffing $dir and $dir2"
>> +diff $dir $dir2
>> +
>> +echo "Rewriting $dir2 partly"
>> +# rewrite half of each file in the snapshot
>> +for j in `seq 0 50`; do
>> +       for i in `seq 10 -1 1`; do
>> +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
>> +               $dir2/foo-$j >> $seqres.full | _filter_xfs_io
>> +       done
>> +done
>> +
>> +echo "Diffing $dir and $dir2"
>> +diff $dir $dir2
>> +
>> +echo "Dropping key and diffing"
>> +_rm_enckey $SCRATCH_MNT $TEST_KEY_IDENTIFIER
>> +diff $dir $dir2 |& _filter_scratch | _filter_nokey_filenames
>> +
>> +$BTRFS_UTIL_PROG subvolume delete $dir > /dev/null 2>&1
> 
> What's the purpose of this subvolume delete?
> It's ignoring stdout and stderr, so it doesn't care whether it
> succeeds or fails, and we
> don't do any tests/checks after it.
> 
> Thanks.


Josef, I'm planning to get this patchset ready for the PR. Are you 
planning to address the review comments as mentioned above? These
aren't bugs, but they definitely add more clarity and adds to the
missing groups.


Thanks, Anand


> 
> 
> 
>> +
>> +# success, all done
>> +status=0
>> +exit
>> diff --git a/tests/btrfs/614.out b/tests/btrfs/614.out
>> new file mode 100644
>> index 00000000..390807e8
>> --- /dev/null
>> +++ b/tests/btrfs/614.out
>> @@ -0,0 +1,111 @@
>> +QA output created by 614
>> +Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
>> +Create a snapshot of 'SCRATCH_MNT/subvol' in 'SCRATCH_MNT/subvol2'
>> +Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
>> +Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
>> +Rewriting /mnt/scratch/subvol2 partly
>> +Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
>> +Dropping key and diffing
>> +Removed encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> +NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
>> --
>> 2.41.0
>>

Josef Bacik Nov. 27, 2023, 3:03 p.m. UTC | #4

On Mon, Nov 27, 2023 at 10:16:28PM +0800, Anand Jain wrote:
> 
> 
> On 31/10/2023 23:39, Filipe Manana wrote:
> > On Tue, Oct 10, 2023 at 9:26 PM Josef Bacik <josef@toxicpanda.com> wrote:
> > > 
> > > From: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
> > > 
> > > Make sure that snapshots of encrypted data are readable and writeable.
> > > 
> > > Test deliberately high-numbered to not conflict.
> > > 
> > > Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
> > > ---
> > >   tests/btrfs/614     |  76 ++++++++++++++++++++++++++++++
> > >   tests/btrfs/614.out | 111 ++++++++++++++++++++++++++++++++++++++++++++
> > >   2 files changed, 187 insertions(+)
> > >   create mode 100755 tests/btrfs/614
> > >   create mode 100644 tests/btrfs/614.out
> > > 
> > > diff --git a/tests/btrfs/614 b/tests/btrfs/614
> > > new file mode 100755
> > > index 00000000..87dd27f9
> > > --- /dev/null
> > > +++ b/tests/btrfs/614
> > > @@ -0,0 +1,76 @@
> > > +#! /bin/bash
> > > +# SPDX-License-Identifier: GPL-2.0
> > > +# Copyright (c) 2023 Meta Platforms, Inc.  All Rights Reserved.
> > > +#
> > > +# FS QA Test 614
> > > +#
> > > +# Try taking a snapshot of an encrypted subvolume. Make sure the snapshot is
> > > +# still readable. Rewrite part of the subvol with the same data; make sure it's
> > > +# still readable.
> > > +#
> > > +. ./common/preamble
> > > +_begin_fstest auto encrypt
> > 
> > Should be in the 'snapshot' and 'subvol' groups too, as it creates a
> > snapshot and a subvolume.
> > Also maybe in the 'quick' group too, see the comments further below.
> > 
> > > +
> > > +# Import common functions.
> > > +. ./common/encrypt
> > > +. ./common/filter
> > > +
> > > +# real QA test starts here
> > > +_supported_fs btrfs
> > > +
> > > +_require_test
> > 
> > The test device is not used, so this can go away.
> > 
> > > +_require_scratch
> > > +_require_scratch_encryption -v 2
> > > +_require_command "$KEYCTL_PROG" keyctl
> > > +
> > > +_scratch_mkfs_encrypted &>> $seqres.full
> > > +_scratch_mount
> > > +
> > > +udir=$SCRATCH_MNT/reference
> > > +dir=$SCRATCH_MNT/subvol
> > > +dir2=$SCRATCH_MNT/subvol2
> > > +$BTRFS_UTIL_PROG subvolume create $dir >> $seqres.full
> > > +mkdir $udir
> > > +
> > > +_set_encpolicy $dir $TEST_KEY_IDENTIFIER
> > > +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
> > > +
> > > +# get files with lots of extents by using backwards writes.
> > > +for j in `seq 0 50`; do
> > > +       for i in `seq 20 -1 1`; do
> > > +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> > > +               $dir/foo-$j >> $seqres.full | _filter_xfs_io
> > > +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> > > +               $udir/foo-$j >> $seqres.full | _filter_xfs_io
> > > +       done
> > > +done
> > > +
> > > +$BTRFS_UTIL_PROG subvolume snapshot $dir $dir2 | _filter_scratch
> > > +
> > > +_scratch_remount
> > > +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
> > > +sleep 30
> > 
> > What's the sleep for?
> > Is the 30 seconds to wait for a transaction commit?
> > If it is then I'd rather mount the fs with -o commit=3 (or some other
> > low value) and then "sleep 3" to make the test run much faster.
> > A comment explaining why the sleep is there, what is its purpose,
> > should also be in place.
> > 
> > > +echo "Diffing $dir and $dir2"
> > > +diff $dir $dir2
> > > +
> > > +echo "Rewriting $dir2 partly"
> > > +# rewrite half of each file in the snapshot
> > > +for j in `seq 0 50`; do
> > > +       for i in `seq 10 -1 1`; do
> > > +               $XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> > > +               $dir2/foo-$j >> $seqres.full | _filter_xfs_io
> > > +       done
> > > +done
> > > +
> > > +echo "Diffing $dir and $dir2"
> > > +diff $dir $dir2
> > > +
> > > +echo "Dropping key and diffing"
> > > +_rm_enckey $SCRATCH_MNT $TEST_KEY_IDENTIFIER
> > > +diff $dir $dir2 |& _filter_scratch | _filter_nokey_filenames
> > > +
> > > +$BTRFS_UTIL_PROG subvolume delete $dir > /dev/null 2>&1
> > 
> > What's the purpose of this subvolume delete?
> > It's ignoring stdout and stderr, so it doesn't care whether it
> > succeeds or fails, and we
> > don't do any tests/checks after it.
> > 
> > Thanks.
> 
> 
> Josef, I'm planning to get this patchset ready for the PR. Are you planning
> to address the review comments as mentioned above? These
> aren't bugs, but they definitely add more clarity and adds to the
> missing groups.
> 

Can you hold off Anand?  I haven't responded because I've been working on this
series and making appropriate changes to my local branch, I'll send a refreshed
version of the patches when I send the next set of the fscrypt enablement
patches.  I've got all the comments addressed locally, it'll save you some work.
Thanks,

Josef

diff --git a/tests/btrfs/614 b/tests/btrfs/614
new file mode 100755
index 00000000..87dd27f9
--- /dev/null
+++ b/tests/btrfs/614
@@ -0,0 +1,76 @@ 
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2023 Meta Platforms, Inc.  All Rights Reserved.
+#
+# FS QA Test 614
+#
+# Try taking a snapshot of an encrypted subvolume. Make sure the snapshot is
+# still readable. Rewrite part of the subvol with the same data; make sure it's
+# still readable.
+#
+. ./common/preamble
+_begin_fstest auto encrypt
+
+# Import common functions.
+. ./common/encrypt
+. ./common/filter
+
+# real QA test starts here
+_supported_fs btrfs
+
+_require_test
+_require_scratch
+_require_scratch_encryption -v 2
+_require_command "$KEYCTL_PROG" keyctl
+
+_scratch_mkfs_encrypted &>> $seqres.full
+_scratch_mount
+
+udir=$SCRATCH_MNT/reference
+dir=$SCRATCH_MNT/subvol
+dir2=$SCRATCH_MNT/subvol2
+$BTRFS_UTIL_PROG subvolume create $dir >> $seqres.full
+mkdir $udir
+
+_set_encpolicy $dir $TEST_KEY_IDENTIFIER
+_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
+
+# get files with lots of extents by using backwards writes.
+for j in `seq 0 50`; do
+	for i in `seq 20 -1 1`; do
+		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
+		$dir/foo-$j >> $seqres.full | _filter_xfs_io
+		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
+		$udir/foo-$j >> $seqres.full | _filter_xfs_io
+	done
+done
+
+$BTRFS_UTIL_PROG subvolume snapshot $dir $dir2 | _filter_scratch
+
+_scratch_remount
+_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
+sleep 30
+echo "Diffing $dir and $dir2"
+diff $dir $dir2
+
+echo "Rewriting $dir2 partly"
+# rewrite half of each file in the snapshot
+for j in `seq 0 50`; do
+	for i in `seq 10 -1 1`; do
+		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
+		$dir2/foo-$j >> $seqres.full | _filter_xfs_io
+	done
+done
+
+echo "Diffing $dir and $dir2"
+diff $dir $dir2
+
+echo "Dropping key and diffing"
+_rm_enckey $SCRATCH_MNT $TEST_KEY_IDENTIFIER
+diff $dir $dir2 |& _filter_scratch | _filter_nokey_filenames
+
+$BTRFS_UTIL_PROG subvolume delete $dir > /dev/null 2>&1
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/614.out b/tests/btrfs/614.out
new file mode 100644
index 00000000..390807e8
--- /dev/null
+++ b/tests/btrfs/614.out
@@ -0,0 +1,111 @@ 
+QA output created by 614
+Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
+Create a snapshot of 'SCRATCH_MNT/subvol' in 'SCRATCH_MNT/subvol2'
+Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
+Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
+Rewriting /mnt/scratch/subvol2 partly
+Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
+Dropping key and diffing
+Removed encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME

[07/12] btrfs: test snapshotting encrypted subvol

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