Re: [PATCH v2 08/10] btrfs: verify tempfsid clones using mkfs

[Anand Jain <anand.jain@oracle.com>]

On 2/20/24 22:25, Filipe Manana wrote:
> On Mon, Feb 19, 2024 at 7:50 PM Anand Jain <anand.jain@oracle.com> wrote:
>>
>> Create appearing to be a clone using the mkfs.btrfs option and test if
>> the tempfsid is active.
>>
>> Signed-off-by: Anand Jain <anand.jain@oracle.com>
>> ---
>> v2:
>>   Remove unnecessary function.
>>   Add clone group
>>   use $UMOUNT_PROG
>>   Let _cp_reflink fail on the stdout.
>>
>>   tests/btrfs/313     | 55 +++++++++++++++++++++++++++++++++++++++++++++
>>   tests/btrfs/313.out | 16 +++++++++++++
>>   2 files changed, 71 insertions(+)
>>   create mode 100755 tests/btrfs/313
>>   create mode 100644 tests/btrfs/313.out
>>
>> diff --git a/tests/btrfs/313 b/tests/btrfs/313
>> new file mode 100755
>> index 000000000000..c495a770c212
>> --- /dev/null
>> +++ b/tests/btrfs/313
>> @@ -0,0 +1,55 @@
>> +#! /bin/bash
>> +# SPDX-License-Identifier: GPL-2.0
>> +# Copyright (c) 2024 Oracle.  All Rights Reserved.
>> +#
>> +# FS QA Test 313
>> +#
>> +# Functional test for the tempfsid, clone devices created using the mkfs option.
>> +#
>> +. ./common/preamble
>> +_begin_fstest auto quick clone tempfsid
>> +
>> +_cleanup()
>> +{
>> +       cd /
>> +       $UMOUNT_PROG $mnt1 > /dev/null 2>&1
>> +       rm -r -f $tmp.*
>> +       rm -r -f $mnt1
>> +}
>> +
>> +. ./common/filter.btrfs
>> +. ./common/reflink
>> +
>> +_supported_fs btrfs
>> +_require_cp_reflink
>> +_require_btrfs_sysfs_fsid
>> +_require_scratch_dev_pool 2
>> +_require_btrfs_fs_feature temp_fsid
>> +_require_btrfs_command inspect-internal dump-super
>> +_require_btrfs_mkfs_uuid_option
> 
> So same as before, these last 2 _require_* are because of the
> check_fsid() function,

Yes, they have already been checked in mkfs_clone(),
so they have been removed here.

Thanks.

> defined at common/btrfs, so they should be in the function and not
> spread over every test case that calls it.
> 
> Thanks.
> 
>> +
>> +_scratch_dev_pool_get 2
>> +
>> +mnt1=$TEST_DIR/$seq/mnt1
>> +mkdir -p $mnt1
>> +
>> +echo ---- clone_uuids_verify_tempfsid ----
>> +mkfs_clone ${SCRATCH_DEV_NAME[0]} ${SCRATCH_DEV_NAME[1]}
>> +
>> +echo Mounting original device
>> +_mount ${SCRATCH_DEV_NAME[0]} $SCRATCH_MNT
>> +check_fsid ${SCRATCH_DEV_NAME[0]}
>> +
>> +echo Mounting cloned device
>> +_mount ${SCRATCH_DEV_NAME[1]} $mnt1
>> +check_fsid ${SCRATCH_DEV_NAME[1]}
>> +
>> +$XFS_IO_PROG -fc 'pwrite -S 0x61 0 9000' $SCRATCH_MNT/foo | _filter_xfs_io
>> +echo cp reflink must fail
>> +_cp_reflink $SCRATCH_MNT/foo $mnt1/bar 2>&1 | _filter_testdir_and_scratch
>> +
>> +_scratch_dev_pool_put
>> +
>> +# success, all done
>> +status=0
>> +exit
>> diff --git a/tests/btrfs/313.out b/tests/btrfs/313.out
>> new file mode 100644
>> index 000000000000..7a089d2c29c5
>> --- /dev/null
>> +++ b/tests/btrfs/313.out
>> @@ -0,0 +1,16 @@
>> +QA output created by 313
>> +---- clone_uuids_verify_tempfsid ----
>> +Mounting original device
>> +On disk fsid:          FSID
>> +Metadata uuid:         FSID
>> +Temp fsid:             FSID
>> +Tempfsid status:       0
>> +Mounting cloned device
>> +On disk fsid:          FSID
>> +Metadata uuid:         FSID
>> +Temp fsid:             TEMPFSID
>> +Tempfsid status:       1
>> +wrote 9000/9000 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +cp reflink must fail
>> +cp: failed to clone 'TEST_DIR/313/mnt1/bar' from 'SCRATCH_MNT/foo': Invalid cross-device link
>> --
>> 2.39.3
>>