[ fstests PATCHv3 0/2] btrfs: Test subvolume delete by id feature

[ fstests PATCHv3 0/2] btrfs: Test subvolume delete by id feature

[Marcos Paulo de Souza]

From: Marcos Paulo de Souza <mpdesouza@suse.com>

Changes from v2:
* Added Reviewed-by from Nikolay to patch 0001
* Changed awk to $AWK_PROG, suggested by Eryu
* Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
* Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
* Created a local function to delete and list subvolumes, suggested by Eryu

Changes from v1:
* Added some prints printing what is being tested
* The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
  plain integers
* New patch expanding the funtionality of _require_btrfs_command, which now
  check for argument of subcommands

Marcos Paulo de Souza (2):
  common: btrfs: Improve _require_btrfs_command
  btrfs: Test subvolume delete --subvolid feature

 common/btrfs        | 13 ++++++--
 tests/btrfs/203     | 73 +++++++++++++++++++++++++++++++++++++++++++++
 tests/btrfs/203.out | 14 +++++++++
 tests/btrfs/group   |  1 +
 4 files changed, 99 insertions(+), 2 deletions(-)
 create mode 100755 tests/btrfs/203
 create mode 100644 tests/btrfs/203.out

-- 
2.25.0

[ fstests PATCHv3 1/2] common: btrfs: Improve _require_btrfs_command

[Marcos Paulo de Souza]

From: Marcos Paulo de Souza <mpdesouza@suse.com>

Now _require_btrfs_command can also check for subfuntion options, like
"subvolume delete --subvolid".

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
Changes from v2:
* Added Reviewed-by from Nikolay to patch 0001

Changes from v1:
* New patch expanding the funtionality of _require_btrfs_command, which now
  check for argument of subcommands

 common/btrfs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/common/btrfs b/common/btrfs
index 19ac7cc4..ae3142b6 100644
--- a/common/btrfs
+++ b/common/btrfs
@@ -12,12 +12,14 @@ _btrfs_get_subvolid()
 
 # _require_btrfs_command <command> [<subcommand>|<option>]
 # We check for btrfs and (optionally) features of the btrfs command
-# It can both subfunction like "inspect-internal dump-tree" and
-# options like "check --qgroup-report"
+# This function support both subfunction like "inspect-internal dump-tree" and
+# options like "check --qgroup-report", and also subfunction options like
+# "subvolume delete --subvolid"
 _require_btrfs_command()
 {
 	local cmd=$1
 	local param=$2
+	local param_arg=$3
 	local safe_param
 
 	_require_command "$BTRFS_UTIL_PROG" btrfs
@@ -39,6 +41,13 @@ _require_btrfs_command()
 
 	$BTRFS_UTIL_PROG $cmd $param --help &> /dev/null
 	[ $? -eq 0 ] || _notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param)"
+
+	test -z "$param_arg" && return
+
+	# replace leading "-"s for grep
+	safe_param=$(echo $param_arg | sed 's/^-*//')
+	$BTRFS_UTIL_PROG $cmd $param --help | grep -wq $safe_param || \
+		_notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param $param_arg)"
 }
 
 # Require extra check on btrfs qgroup numbers
-- 
2.25.0

[ fstests PATCHv3 2/2] btrfs: Test subvolume delete --subvolid feature

[Marcos Paulo de Souza]

From: Marcos Paulo de Souza <mpdesouza@suse.com>

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
Changes from v2:
* Added 'Created subvolume...' into 203.out to match the subvolume creating command
* Changed awk to $AWK_PROG, suggested by Eryu
* Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
* Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
* Created a local function to delete and list subvolumes, suggested by Eryu

Changes from v1:
* Added some prints printing what is being tested
* The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
  plain integers


 tests/btrfs/203     | 68 +++++++++++++++++++++++++++++++++++++++++++++
 tests/btrfs/203.out | 17 ++++++++++++
 tests/btrfs/group   |  1 +
 3 files changed, 86 insertions(+)
 create mode 100755 tests/btrfs/203
 create mode 100644 tests/btrfs/203.out

diff --git a/tests/btrfs/203 b/tests/btrfs/203
new file mode 100755
index 00000000..0f662db1
--- /dev/null
+++ b/tests/btrfs/203
@@ -0,0 +1,68 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
+#
+# FSQA Test No. 203
+#
+# Test subvolume deletion using the subvolume id, even when the subvolume in
+# question is in a different mount space.
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/filter.btrfs
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_btrfs_command subvolume delete --subvolid
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+_delete_and_list()
+{
+	local subvol_name="$1"
+	local msg="$2"
+
+	SUBVOLID=$(_btrfs_get_subvolid $SCRATCH_MNT "$subvol_name")
+	$BTRFS_UTIL_PROG subvolume delete --subvolid $SUBVOLID $SCRATCH_MNT | _filter_scratch
+
+	echo "$msg"
+	$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
+}
+
+# Test creating a normal subvolumes
+$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol1 | _filter_scratch
+$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol2 | _filter_scratch
+$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol3 | _filter_scratch
+
+echo "Current subvolume ids:"
+$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
+
+# Delete the subvolume subvol1, and list the remaining two subvolumes
+_delete_and_list subvol1 "After deleting one subvolume:"
+_scratch_unmount
+
+# Now we mount the subvol2, which makes subvol3 not accessible for this mount
+# point, but we should be able to delete it using it's subvolume id
+$MOUNT_PROG -o subvol=subvol2 $SCRATCH_DEV $SCRATCH_MNT
+_delete_and_list subvol3 "Last remaining subvolume:"
+_scratch_unmount
+
+# now mount the rootfs
+_scratch_mount
+# Delete the subvol2
+_delete_and_list subvol2 "All subvolumes removed."
+_scratch_unmount
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/203.out b/tests/btrfs/203.out
new file mode 100644
index 00000000..3301852b
--- /dev/null
+++ b/tests/btrfs/203.out
@@ -0,0 +1,17 @@
+QA output created by 203
+Create subvolume 'SCRATCH_MNT/subvol1'
+Create subvolume 'SCRATCH_MNT/subvol2'
+Create subvolume 'SCRATCH_MNT/subvol3'
+Current subvolume ids:
+subvol1
+subvol2
+subvol3
+Delete subvolume (no-commit): 'SCRATCH_MNT/subvol1'
+After deleting one subvolume:
+subvol2
+subvol3
+Delete subvolume (no-commit): 'SCRATCH_MNT/subvol3'
+Last remaining subvolume:
+subvol2
+Delete subvolume (no-commit): 'SCRATCH_MNT/subvol2'
+All subvolumes removed.
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 79f85e97..e7744217 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -204,3 +204,4 @@
 200 auto quick send clone
 201 auto quick punch log
 202 auto quick subvol snapshot
+203 auto quick subvol
-- 
2.25.0

Re: [ fstests PATCHv3 1/2] common: btrfs: Improve _require_btrfs_command

[Johannes Thumshirn]

On 23/02/2020 19:33, Marcos Paulo de Souza wrote:
> Now _require_btrfs_command can also check for subfuntion options, like

Nit: subfunction

else
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>

Re: [ fstests PATCHv3 1/2] common: btrfs: Improve _require_btrfs_command

[Eryu Guan]

On Mon, Feb 24, 2020 at 12:13:40AM -0300, Marcos Paulo de Souza wrote:
> From: Marcos Paulo de Souza <mpdesouza@suse.com>
> 
> Now _require_btrfs_command can also check for subfuntion options, like
> "subvolume delete --subvolid".
> 
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>

Ah, this patch has already been applied in previous updates. Please see

2f9b4039253d common/btrfs: Improve _require_btrfs_command

Thanks,
Eryu

> ---
> Changes from v2:
> * Added Reviewed-by from Nikolay to patch 0001
> 
> Changes from v1:
> * New patch expanding the funtionality of _require_btrfs_command, which now
>   check for argument of subcommands
> 
>  common/btrfs | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/common/btrfs b/common/btrfs
> index 19ac7cc4..ae3142b6 100644
> --- a/common/btrfs
> +++ b/common/btrfs
> @@ -12,12 +12,14 @@ _btrfs_get_subvolid()
>  
>  # _require_btrfs_command <command> [<subcommand>|<option>]
>  # We check for btrfs and (optionally) features of the btrfs command
> -# It can both subfunction like "inspect-internal dump-tree" and
> -# options like "check --qgroup-report"
> +# This function support both subfunction like "inspect-internal dump-tree" and
> +# options like "check --qgroup-report", and also subfunction options like
> +# "subvolume delete --subvolid"
>  _require_btrfs_command()
>  {
>  	local cmd=$1
>  	local param=$2
> +	local param_arg=$3
>  	local safe_param
>  
>  	_require_command "$BTRFS_UTIL_PROG" btrfs
> @@ -39,6 +41,13 @@ _require_btrfs_command()
>  
>  	$BTRFS_UTIL_PROG $cmd $param --help &> /dev/null
>  	[ $? -eq 0 ] || _notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param)"
> +
> +	test -z "$param_arg" && return
> +
> +	# replace leading "-"s for grep
> +	safe_param=$(echo $param_arg | sed 's/^-*//')
> +	$BTRFS_UTIL_PROG $cmd $param --help | grep -wq $safe_param || \
> +		_notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param $param_arg)"
>  }
>  
>  # Require extra check on btrfs qgroup numbers
> -- 
> 2.25.0
> 

Re: [ fstests PATCHv3 2/2] btrfs: Test subvolume delete --subvolid feature

[Eryu Guan]

On Mon, Feb 24, 2020 at 12:13:41AM -0300, Marcos Paulo de Souza wrote:
> From: Marcos Paulo de Souza <mpdesouza@suse.com>
> 
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>

Looks fine to me overall, but it'd be better to have commit message to
describe the test.

Also, it'd be great if btrfs folks could help review it.

Thanks,
Eryu

> ---
> Changes from v2:
> * Added 'Created subvolume...' into 203.out to match the subvolume creating command
> * Changed awk to $AWK_PROG, suggested by Eryu
> * Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
> * Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
> * Created a local function to delete and list subvolumes, suggested by Eryu
> 
> Changes from v1:
> * Added some prints printing what is being tested
> * The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
>   plain integers
> 
> 
>  tests/btrfs/203     | 68 +++++++++++++++++++++++++++++++++++++++++++++
>  tests/btrfs/203.out | 17 ++++++++++++
>  tests/btrfs/group   |  1 +
>  3 files changed, 86 insertions(+)
>  create mode 100755 tests/btrfs/203
>  create mode 100644 tests/btrfs/203.out
> 
> diff --git a/tests/btrfs/203 b/tests/btrfs/203
> new file mode 100755
> index 00000000..0f662db1
> --- /dev/null
> +++ b/tests/btrfs/203
> @@ -0,0 +1,68 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
> +#
> +# FSQA Test No. 203
> +#
> +# Test subvolume deletion using the subvolume id, even when the subvolume in
> +# question is in a different mount space.
> +#
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +tmp=/tmp/$$
> +status=1	# failure is the default!
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/filter.btrfs
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +_supported_os Linux
> +_require_scratch
> +_require_btrfs_command subvolume delete --subvolid
> +
> +_scratch_mkfs > /dev/null 2>&1
> +_scratch_mount
> +
> +_delete_and_list()
> +{
> +	local subvol_name="$1"
> +	local msg="$2"
> +
> +	SUBVOLID=$(_btrfs_get_subvolid $SCRATCH_MNT "$subvol_name")
> +	$BTRFS_UTIL_PROG subvolume delete --subvolid $SUBVOLID $SCRATCH_MNT | _filter_scratch
> +
> +	echo "$msg"
> +	$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> +}
> +
> +# Test creating a normal subvolumes
> +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol1 | _filter_scratch
> +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol2 | _filter_scratch
> +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol3 | _filter_scratch
> +
> +echo "Current subvolume ids:"
> +$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> +
> +# Delete the subvolume subvol1, and list the remaining two subvolumes
> +_delete_and_list subvol1 "After deleting one subvolume:"
> +_scratch_unmount
> +
> +# Now we mount the subvol2, which makes subvol3 not accessible for this mount
> +# point, but we should be able to delete it using it's subvolume id
> +$MOUNT_PROG -o subvol=subvol2 $SCRATCH_DEV $SCRATCH_MNT
> +_delete_and_list subvol3 "Last remaining subvolume:"
> +_scratch_unmount
> +
> +# now mount the rootfs
> +_scratch_mount
> +# Delete the subvol2
> +_delete_and_list subvol2 "All subvolumes removed."
> +_scratch_unmount
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/btrfs/203.out b/tests/btrfs/203.out
> new file mode 100644
> index 00000000..3301852b
> --- /dev/null
> +++ b/tests/btrfs/203.out
> @@ -0,0 +1,17 @@
> +QA output created by 203
> +Create subvolume 'SCRATCH_MNT/subvol1'
> +Create subvolume 'SCRATCH_MNT/subvol2'
> +Create subvolume 'SCRATCH_MNT/subvol3'
> +Current subvolume ids:
> +subvol1
> +subvol2
> +subvol3
> +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol1'
> +After deleting one subvolume:
> +subvol2
> +subvol3
> +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol3'
> +Last remaining subvolume:
> +subvol2
> +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol2'
> +All subvolumes removed.
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index 79f85e97..e7744217 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -204,3 +204,4 @@
>  200 auto quick send clone
>  201 auto quick punch log
>  202 auto quick subvol snapshot
> +203 auto quick subvol
> -- 
> 2.25.0
> 

Re: [ fstests PATCHv3 2/2] btrfs: Test subvolume delete --subvolid feature

[Marcos Paulo de Souza]

[-- Attachment #1: Type: text/plain, Size: 5264 bytes --]

On Sun, Mar 01, 2020 at 09:54:06PM +0800, Eryu Guan wrote:
> On Mon, Feb 24, 2020 at 12:13:41AM -0300, Marcos Paulo de Souza wrote:
> > From: Marcos Paulo de Souza <mpdesouza@suse.com>
> > 
> > Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> 
> Looks fine to me overall, but it'd be better to have commit message to
> describe the test.
> 
> Also, it'd be great if btrfs folks could help review it.

Indeed, a commit message makes things better. I'm attaching here a new version
of the patch containing a commit message. This new version also bumps the test
number from 203 -> 207, since other messages were merged after I sent my patch.

While adding the commit message I found in Josef's commit that he added a new
btrfs test 206, but groups contained test 204[1]. Is it a typo?

[1]: https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/commit/?id=1d6d14db1165db1ffc87fbddcf97eb70fdf84607

> 
> Thanks,
> Eryu
> 
> > ---
> > Changes from v2:
> > * Added 'Created subvolume...' into 203.out to match the subvolume creating command
> > * Changed awk to $AWK_PROG, suggested by Eryu
> > * Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
> > * Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
> > * Created a local function to delete and list subvolumes, suggested by Eryu
> > 
> > Changes from v1:
> > * Added some prints printing what is being tested
> > * The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
> >   plain integers
> > 
> > 
> >  tests/btrfs/203     | 68 +++++++++++++++++++++++++++++++++++++++++++++
> >  tests/btrfs/203.out | 17 ++++++++++++
> >  tests/btrfs/group   |  1 +
> >  3 files changed, 86 insertions(+)
> >  create mode 100755 tests/btrfs/203
> >  create mode 100644 tests/btrfs/203.out
> > 
> > diff --git a/tests/btrfs/203 b/tests/btrfs/203
> > new file mode 100755
> > index 00000000..0f662db1
> > --- /dev/null
> > +++ b/tests/btrfs/203
> > @@ -0,0 +1,68 @@
> > +#! /bin/bash
> > +# SPDX-License-Identifier: GPL-2.0
> > +# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
> > +#
> > +# FSQA Test No. 203
> > +#
> > +# Test subvolume deletion using the subvolume id, even when the subvolume in
> > +# question is in a different mount space.
> > +#
> > +seq=`basename $0`
> > +seqres=$RESULT_DIR/$seq
> > +echo "QA output created by $seq"
> > +tmp=/tmp/$$
> > +status=1	# failure is the default!
> > +
> > +# get standard environment, filters and checks
> > +. ./common/rc
> > +. ./common/filter
> > +. ./common/filter.btrfs
> > +
> > +# real QA test starts here
> > +_supported_fs btrfs
> > +_supported_os Linux
> > +_require_scratch
> > +_require_btrfs_command subvolume delete --subvolid
> > +
> > +_scratch_mkfs > /dev/null 2>&1
> > +_scratch_mount
> > +
> > +_delete_and_list()
> > +{
> > +	local subvol_name="$1"
> > +	local msg="$2"
> > +
> > +	SUBVOLID=$(_btrfs_get_subvolid $SCRATCH_MNT "$subvol_name")
> > +	$BTRFS_UTIL_PROG subvolume delete --subvolid $SUBVOLID $SCRATCH_MNT | _filter_scratch
> > +
> > +	echo "$msg"
> > +	$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> > +}
> > +
> > +# Test creating a normal subvolumes
> > +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol1 | _filter_scratch
> > +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol2 | _filter_scratch
> > +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol3 | _filter_scratch
> > +
> > +echo "Current subvolume ids:"
> > +$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> > +
> > +# Delete the subvolume subvol1, and list the remaining two subvolumes
> > +_delete_and_list subvol1 "After deleting one subvolume:"
> > +_scratch_unmount
> > +
> > +# Now we mount the subvol2, which makes subvol3 not accessible for this mount
> > +# point, but we should be able to delete it using it's subvolume id
> > +$MOUNT_PROG -o subvol=subvol2 $SCRATCH_DEV $SCRATCH_MNT
> > +_delete_and_list subvol3 "Last remaining subvolume:"
> > +_scratch_unmount
> > +
> > +# now mount the rootfs
> > +_scratch_mount
> > +# Delete the subvol2
> > +_delete_and_list subvol2 "All subvolumes removed."
> > +_scratch_unmount
> > +
> > +# success, all done
> > +status=0
> > +exit
> > diff --git a/tests/btrfs/203.out b/tests/btrfs/203.out
> > new file mode 100644
> > index 00000000..3301852b
> > --- /dev/null
> > +++ b/tests/btrfs/203.out
> > @@ -0,0 +1,17 @@
> > +QA output created by 203
> > +Create subvolume 'SCRATCH_MNT/subvol1'
> > +Create subvolume 'SCRATCH_MNT/subvol2'
> > +Create subvolume 'SCRATCH_MNT/subvol3'
> > +Current subvolume ids:
> > +subvol1
> > +subvol2
> > +subvol3
> > +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol1'
> > +After deleting one subvolume:
> > +subvol2
> > +subvol3
> > +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol3'
> > +Last remaining subvolume:
> > +subvol2
> > +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol2'
> > +All subvolumes removed.
> > diff --git a/tests/btrfs/group b/tests/btrfs/group
> > index 79f85e97..e7744217 100644
> > --- a/tests/btrfs/group
> > +++ b/tests/btrfs/group
> > @@ -204,3 +204,4 @@
> >  200 auto quick send clone
> >  201 auto quick punch log
> >  202 auto quick subvol snapshot
> > +203 auto quick subvol
> > -- 
> > 2.25.0
> > 

[-- Attachment #2: 0001-btrfs-Test-subvolume-delete-subvolid-feature.patch --]
[-- Type: text/x-patch, Size: 4671 bytes --]

From 2541e8ef08d45030f97073ef1e5bc9196ef22e4d Mon Sep 17 00:00:00 2001
From: Marcos Paulo de Souza <mpdesouza@suse.com>
Date: Sun, 26 Jan 2020 23:44:22 -0300
Subject: [PATCHv4] btrfs: Test subvolume delete --subvolid feature

Now btrfs can delete subvolumes based in ther subvolume id. This makes
easy for the user willing to delete a subvolume that cannot be accessed
by the mount point, since btrfs allows to mount a specific subvolume and
hiding the other from the mount point.

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
---
Changes from v3:
* Changes test 203 -> 207, since other tests were merged
* The first patch was merged, so remove it from sending again
  [https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/commit/?id=2f9b4039253d3a6f91cb2a22639a243b5a27e110]

Changes from v2:
* Added Reviewed-by from Nikolay to patch 0001
* Changed awk to $AWK_PROG, suggested by Eryu
* Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
* Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
* Created a local function to delete and list subvolumes, suggested by Eryu

Changes from v1:
* Added some prints printing what is being tested
* The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
  plain integers
* New patch expanding the funtionality of _require_btrfs_command, which now
  check for argument of subcommands

 tests/btrfs/207     | 68 +++++++++++++++++++++++++++++++++++++++++++++
 tests/btrfs/207.out | 17 ++++++++++++
 tests/btrfs/group   |  1 +
 3 files changed, 86 insertions(+)
 create mode 100755 tests/btrfs/207
 create mode 100644 tests/btrfs/207.out

diff --git a/tests/btrfs/207 b/tests/btrfs/207
new file mode 100755
index 00000000..bec5baea
--- /dev/null
+++ b/tests/btrfs/207
@@ -0,0 +1,68 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
+#
+# FSQA Test No. 207
+#
+# Test subvolume deletion using the subvolume id, even when the subvolume in
+# question is in a different mount space.
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/filter.btrfs
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_btrfs_command subvolume delete --subvolid
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+_delete_and_list()
+{
+	local subvol_name="$1"
+	local msg="$2"
+
+	SUBVOLID=$(_btrfs_get_subvolid $SCRATCH_MNT "$subvol_name")
+	$BTRFS_UTIL_PROG subvolume delete --subvolid $SUBVOLID $SCRATCH_MNT | _filter_scratch
+
+	echo "$msg"
+	$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
+}
+
+# Test creating a normal subvolumes
+$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol1 | _filter_scratch
+$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol2 | _filter_scratch
+$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol3 | _filter_scratch
+
+echo "Current subvolume ids:"
+$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
+
+# Delete the subvolume subvol1, and list the remaining two subvolumes
+_delete_and_list subvol1 "After deleting one subvolume:"
+_scratch_unmount
+
+# Now we mount the subvol2, which makes subvol3 not accessible for this mount
+# point, but we should be able to delete it using it's subvolume id
+$MOUNT_PROG -o subvol=subvol2 $SCRATCH_DEV $SCRATCH_MNT
+_delete_and_list subvol3 "Last remaining subvolume:"
+_scratch_unmount
+
+# now mount the rootfs
+_scratch_mount
+# Delete the subvol2
+_delete_and_list subvol2 "All subvolumes removed."
+_scratch_unmount
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/207.out b/tests/btrfs/207.out
new file mode 100644
index 00000000..e3f7daa4
--- /dev/null
+++ b/tests/btrfs/207.out
@@ -0,0 +1,17 @@
+QA output created by 207
+Create subvolume 'SCRATCH_MNT/subvol1'
+Create subvolume 'SCRATCH_MNT/subvol2'
+Create subvolume 'SCRATCH_MNT/subvol3'
+Current subvolume ids:
+subvol1
+subvol2
+subvol3
+Delete subvolume (no-commit): 'SCRATCH_MNT/subvol1'
+After deleting one subvolume:
+subvol2
+subvol3
+Delete subvolume (no-commit): 'SCRATCH_MNT/subvol3'
+Last remaining subvolume:
+subvol2
+Delete subvolume (no-commit): 'SCRATCH_MNT/subvol2'
+All subvolumes removed.
diff --git a/tests/btrfs/group b/tests/btrfs/group
index e3ad347b..1acf6af7 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -209,3 +209,4 @@
 204 auto quick punch
 205 auto quick clone compress
 204 auto quick log replay
+207 auto quick subvol
-- 
2.25.0

Re: [ fstests PATCHv3 2/2] btrfs: Test subvolume delete --subvolid feature

[Eryu Guan]

On Sun, Mar 01, 2020 at 02:06:54PM -0300, Marcos Paulo de Souza wrote:
> On Sun, Mar 01, 2020 at 09:54:06PM +0800, Eryu Guan wrote:
> > On Mon, Feb 24, 2020 at 12:13:41AM -0300, Marcos Paulo de Souza wrote:
> > > From: Marcos Paulo de Souza <mpdesouza@suse.com>
> > > 
> > > Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> > 
> > Looks fine to me overall, but it'd be better to have commit message to
> > describe the test.
> > 
> > Also, it'd be great if btrfs folks could help review it.
> 
> Indeed, a commit message makes things better. I'm attaching here a new version
> of the patch containing a commit message. This new version also bumps the test
> number from 203 -> 207, since other messages were merged after I sent my patch.

Thanks! Would you please send a formal patch to the list?

> 
> While adding the commit message I found in Josef's commit that he added a new
> btrfs test 206, but groups contained test 204[1]. Is it a typo?

Ah, it is, my bad. This is a merge error and easy enough to fix, I've
fixed it in my local tree. Thanks for pointing it out!

Thanks,
Eryu

> 
> [1]: https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/commit/?id=1d6d14db1165db1ffc87fbddcf97eb70fdf84607
> 
> > 
> > Thanks,
> > Eryu
> > 
> > > ---
> > > Changes from v2:
> > > * Added 'Created subvolume...' into 203.out to match the subvolume creating command
> > > * Changed awk to $AWK_PROG, suggested by Eryu
> > > * Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
> > > * Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
> > > * Created a local function to delete and list subvolumes, suggested by Eryu
> > > 
> > > Changes from v1:
> > > * Added some prints printing what is being tested
> > > * The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
> > >   plain integers
> > > 
> > > 
> > >  tests/btrfs/203     | 68 +++++++++++++++++++++++++++++++++++++++++++++
> > >  tests/btrfs/203.out | 17 ++++++++++++
> > >  tests/btrfs/group   |  1 +
> > >  3 files changed, 86 insertions(+)
> > >  create mode 100755 tests/btrfs/203
> > >  create mode 100644 tests/btrfs/203.out
> > > 
> > > diff --git a/tests/btrfs/203 b/tests/btrfs/203
> > > new file mode 100755
> > > index 00000000..0f662db1
> > > --- /dev/null
> > > +++ b/tests/btrfs/203
> > > @@ -0,0 +1,68 @@
> > > +#! /bin/bash
> > > +# SPDX-License-Identifier: GPL-2.0
> > > +# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
> > > +#
> > > +# FSQA Test No. 203
> > > +#
> > > +# Test subvolume deletion using the subvolume id, even when the subvolume in
> > > +# question is in a different mount space.
> > > +#
> > > +seq=`basename $0`
> > > +seqres=$RESULT_DIR/$seq
> > > +echo "QA output created by $seq"
> > > +tmp=/tmp/$$
> > > +status=1	# failure is the default!
> > > +
> > > +# get standard environment, filters and checks
> > > +. ./common/rc
> > > +. ./common/filter
> > > +. ./common/filter.btrfs
> > > +
> > > +# real QA test starts here
> > > +_supported_fs btrfs
> > > +_supported_os Linux
> > > +_require_scratch
> > > +_require_btrfs_command subvolume delete --subvolid
> > > +
> > > +_scratch_mkfs > /dev/null 2>&1
> > > +_scratch_mount
> > > +
> > > +_delete_and_list()
> > > +{
> > > +	local subvol_name="$1"
> > > +	local msg="$2"
> > > +
> > > +	SUBVOLID=$(_btrfs_get_subvolid $SCRATCH_MNT "$subvol_name")
> > > +	$BTRFS_UTIL_PROG subvolume delete --subvolid $SUBVOLID $SCRATCH_MNT | _filter_scratch
> > > +
> > > +	echo "$msg"
> > > +	$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> > > +}
> > > +
> > > +# Test creating a normal subvolumes
> > > +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol1 | _filter_scratch
> > > +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol2 | _filter_scratch
> > > +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol3 | _filter_scratch
> > > +
> > > +echo "Current subvolume ids:"
> > > +$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> > > +
> > > +# Delete the subvolume subvol1, and list the remaining two subvolumes
> > > +_delete_and_list subvol1 "After deleting one subvolume:"
> > > +_scratch_unmount
> > > +
> > > +# Now we mount the subvol2, which makes subvol3 not accessible for this mount
> > > +# point, but we should be able to delete it using it's subvolume id
> > > +$MOUNT_PROG -o subvol=subvol2 $SCRATCH_DEV $SCRATCH_MNT
> > > +_delete_and_list subvol3 "Last remaining subvolume:"
> > > +_scratch_unmount
> > > +
> > > +# now mount the rootfs
> > > +_scratch_mount
> > > +# Delete the subvol2
> > > +_delete_and_list subvol2 "All subvolumes removed."
> > > +_scratch_unmount
> > > +
> > > +# success, all done
> > > +status=0
> > > +exit
> > > diff --git a/tests/btrfs/203.out b/tests/btrfs/203.out
> > > new file mode 100644
> > > index 00000000..3301852b
> > > --- /dev/null
> > > +++ b/tests/btrfs/203.out
> > > @@ -0,0 +1,17 @@
> > > +QA output created by 203
> > > +Create subvolume 'SCRATCH_MNT/subvol1'
> > > +Create subvolume 'SCRATCH_MNT/subvol2'
> > > +Create subvolume 'SCRATCH_MNT/subvol3'
> > > +Current subvolume ids:
> > > +subvol1
> > > +subvol2
> > > +subvol3
> > > +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol1'
> > > +After deleting one subvolume:
> > > +subvol2
> > > +subvol3
> > > +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol3'
> > > +Last remaining subvolume:
> > > +subvol2
> > > +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol2'
> > > +All subvolumes removed.
> > > diff --git a/tests/btrfs/group b/tests/btrfs/group
> > > index 79f85e97..e7744217 100644
> > > --- a/tests/btrfs/group
> > > +++ b/tests/btrfs/group
> > > @@ -204,3 +204,4 @@
> > >  200 auto quick send clone
> > >  201 auto quick punch log
> > >  202 auto quick subvol snapshot
> > > +203 auto quick subvol
> > > -- 
> > > 2.25.0
> > > 

> From 2541e8ef08d45030f97073ef1e5bc9196ef22e4d Mon Sep 17 00:00:00 2001
> From: Marcos Paulo de Souza <mpdesouza@suse.com>
> Date: Sun, 26 Jan 2020 23:44:22 -0300
> Subject: [PATCHv4] btrfs: Test subvolume delete --subvolid feature
> 
> Now btrfs can delete subvolumes based in ther subvolume id. This makes
> easy for the user willing to delete a subvolume that cannot be accessed
> by the mount point, since btrfs allows to mount a specific subvolume and
> hiding the other from the mount point.
> 
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> ---
> Changes from v3:
> * Changes test 203 -> 207, since other tests were merged
> * The first patch was merged, so remove it from sending again
>   [https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/commit/?id=2f9b4039253d3a6f91cb2a22639a243b5a27e110]
> 
> Changes from v2:
> * Added Reviewed-by from Nikolay to patch 0001
> * Changed awk to $AWK_PROG, suggested by Eryu
> * Changed _run_btrfs_util_prog to $BTRFS_UTIL_PROG, suggested by Eryu
> * Use _scratch_unmount instead of executing umount by hand, sugested by Eryu
> * Created a local function to delete and list subvolumes, suggested by Eryu
> 
> Changes from v1:
> * Added some prints printing what is being tested
> * The test now uses the _btrfs_get_subvolid to get subvolumeids instead of using
>   plain integers
> * New patch expanding the funtionality of _require_btrfs_command, which now
>   check for argument of subcommands
> 
>  tests/btrfs/207     | 68 +++++++++++++++++++++++++++++++++++++++++++++
>  tests/btrfs/207.out | 17 ++++++++++++
>  tests/btrfs/group   |  1 +
>  3 files changed, 86 insertions(+)
>  create mode 100755 tests/btrfs/207
>  create mode 100644 tests/btrfs/207.out
> 
> diff --git a/tests/btrfs/207 b/tests/btrfs/207
> new file mode 100755
> index 00000000..bec5baea
> --- /dev/null
> +++ b/tests/btrfs/207
> @@ -0,0 +1,68 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
> +#
> +# FSQA Test No. 207
> +#
> +# Test subvolume deletion using the subvolume id, even when the subvolume in
> +# question is in a different mount space.
> +#
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +tmp=/tmp/$$
> +status=1	# failure is the default!
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/filter.btrfs
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +_supported_os Linux
> +_require_scratch
> +_require_btrfs_command subvolume delete --subvolid
> +
> +_scratch_mkfs > /dev/null 2>&1
> +_scratch_mount
> +
> +_delete_and_list()
> +{
> +	local subvol_name="$1"
> +	local msg="$2"
> +
> +	SUBVOLID=$(_btrfs_get_subvolid $SCRATCH_MNT "$subvol_name")
> +	$BTRFS_UTIL_PROG subvolume delete --subvolid $SUBVOLID $SCRATCH_MNT | _filter_scratch
> +
> +	echo "$msg"
> +	$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> +}
> +
> +# Test creating a normal subvolumes
> +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol1 | _filter_scratch
> +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol2 | _filter_scratch
> +$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol3 | _filter_scratch
> +
> +echo "Current subvolume ids:"
> +$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }'
> +
> +# Delete the subvolume subvol1, and list the remaining two subvolumes
> +_delete_and_list subvol1 "After deleting one subvolume:"
> +_scratch_unmount
> +
> +# Now we mount the subvol2, which makes subvol3 not accessible for this mount
> +# point, but we should be able to delete it using it's subvolume id
> +$MOUNT_PROG -o subvol=subvol2 $SCRATCH_DEV $SCRATCH_MNT
> +_delete_and_list subvol3 "Last remaining subvolume:"
> +_scratch_unmount
> +
> +# now mount the rootfs
> +_scratch_mount
> +# Delete the subvol2
> +_delete_and_list subvol2 "All subvolumes removed."
> +_scratch_unmount
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/btrfs/207.out b/tests/btrfs/207.out
> new file mode 100644
> index 00000000..e3f7daa4
> --- /dev/null
> +++ b/tests/btrfs/207.out
> @@ -0,0 +1,17 @@
> +QA output created by 207
> +Create subvolume 'SCRATCH_MNT/subvol1'
> +Create subvolume 'SCRATCH_MNT/subvol2'
> +Create subvolume 'SCRATCH_MNT/subvol3'
> +Current subvolume ids:
> +subvol1
> +subvol2
> +subvol3
> +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol1'
> +After deleting one subvolume:
> +subvol2
> +subvol3
> +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol3'
> +Last remaining subvolume:
> +subvol2
> +Delete subvolume (no-commit): 'SCRATCH_MNT/subvol2'
> +All subvolumes removed.
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index e3ad347b..1acf6af7 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -209,3 +209,4 @@
>  204 auto quick punch
>  205 auto quick clone compress
>  204 auto quick log replay
> +207 auto quick subvol
> -- 
> 2.25.0
> 

Re: [ fstests PATCHv3 2/2] btrfs: Test subvolume delete --subvolid feature

[Eryu Guan]

On Sun, Mar 08, 2020 at 11:13:07PM +0800, Eryu Guan wrote:
> On Sun, Mar 01, 2020 at 02:06:54PM -0300, Marcos Paulo de Souza wrote:
> > On Sun, Mar 01, 2020 at 09:54:06PM +0800, Eryu Guan wrote:
> > > On Mon, Feb 24, 2020 at 12:13:41AM -0300, Marcos Paulo de Souza wrote:
> > > > From: Marcos Paulo de Souza <mpdesouza@suse.com>
> > > > 
> > > > Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> > > 
> > > Looks fine to me overall, but it'd be better to have commit message to
> > > describe the test.
> > > 
> > > Also, it'd be great if btrfs folks could help review it.
> > 
> > Indeed, a commit message makes things better. I'm attaching here a new version
> > of the patch containing a commit message. This new version also bumps the test
> > number from 203 -> 207, since other messages were merged after I sent my patch.
> 
> Thanks! Would you please send a formal patch to the list?
> 
> > 
> > While adding the commit message I found in Josef's commit that he added a new
> > btrfs test 206, but groups contained test 204[1]. Is it a typo?
> 
> Ah, it is, my bad. This is a merge error and easy enough to fix, I've
> fixed it in my local tree. Thanks for pointing it out!

Then I noticed that Omar has fixed it in his new test.. Will drop my
local fix.

Eryu