On July 29, 2025 1:15 pm, Wolfgang Bumiller wrote:
> Signed-off-by: Wolfgang Bumiller <w.bumil...@proxmox.com>
> ---
>  src/PVE/Storage/BTRFSPlugin.pm       | 25 ++++++++----
>  src/PVE/Storage/ESXiPlugin.pm        |  2 +-
>  src/PVE/Storage/ISCSIDirectPlugin.pm |  2 +-
>  src/PVE/Storage/ISCSIPlugin.pm       |  2 +-
>  src/PVE/Storage/LVMPlugin.pm         | 35 ++++++++++++-----
>  src/PVE/Storage/LvmThinPlugin.pm     | 19 +++++++--
>  src/PVE/Storage/Plugin.pm            | 59 +++++++++++++++++-----------
>  src/PVE/Storage/RBDPlugin.pm         | 27 +++++++++----
>  src/PVE/Storage/ZFSPlugin.pm         | 17 ++++++--
>  src/PVE/Storage/ZFSPoolPlugin.pm     | 35 +++++++++++------
>  10 files changed, 154 insertions(+), 69 deletions(-)
> 
> diff --git a/src/PVE/Storage/BTRFSPlugin.pm b/src/PVE/Storage/BTRFSPlugin.pm
> index 585489c..0a42c88 100644
> --- a/src/PVE/Storage/BTRFSPlugin.pm
> +++ b/src/PVE/Storage/BTRFSPlugin.pm
> @@ -13,6 +13,7 @@ use POSIX qw(EEXIST);
>  
>  use PVE::Tools qw(run_command dir_glob_foreach);
>  
> +use PVE::Storage::Common;
>  use PVE::Storage::DirPlugin;
>  
>  use constant {
> @@ -193,15 +194,16 @@ sub filesystem_path {
>  
>      my $path = $class->get_subdir($scfg, $vtype);
>  
> -    $path .= "/$vmid" if $vtype eq 'images';
> +    my $is_volume_type = PVE::Storage::Common::is_volume_type($vtype);
> +    $path .= "/$vmid" if $is_volume_type;
>  
> -    if ($vtype eq 'images' && defined($format) && $format eq 'raw') {
> +    if ($is_volume_type && defined($format) && $format eq 'raw') {
>          my $dir = raw_name_to_dir($name);
>          if ($snapname) {
>              $dir .= "\@$snapname";
>          }
>          $path .= "/$dir/disk.raw";
> -    } elsif ($vtype eq 'images' && defined($format) && $format eq 'subvol') {
> +    } elsif ($is_volume_type && defined($format) && $format eq 'subvol') {
>          $path .= "/$name";
>          if ($snapname) {
>              $path .= "\@$snapname";
> @@ -322,19 +324,28 @@ sub clone_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      if ($fmt ne 'raw' && $fmt ne 'subvol') {
> -        return $class->SUPER::alloc_image($storeid, $scfg, $vmid, $fmt, 
> $name, $size);
> +        return $class->SUPER::alloc_image($storeid, $scfg, $vmid, $fmt, 
> $name, $size, $vtype);
>      }
>  
>      # From Plugin.pm:
>  
> -    my $imagedir = $class->get_subdir($scfg, 'images') . "/$vmid";
> +    my $imagedir = $class->get_subdir($scfg, $vtype // 'images') . "/$vmid";
>  
>      mkpath $imagedir;
>  
> -    $name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 1) if 
> !$name;
> +    if ($name) {
> +        if (defined($vtype)) {
> +            die "illegal name '$name' - should be 'vol-vm-$vmid-*'\n"
> +                if $vtype eq 'vm-vol' && $name !~ m/^vol-vm-$vmid-/;
> +            die "illegal name '$name' - should be 'vol-ct-$vmid-*'\n"
> +                if $vtype eq 'ct-vol' && $name !~ m/^vol-ct-$vmid-/;
> +        }

couldn't we parse the name and check the vtype that returns, like we do
for the format below?

> +    } else {
> +        $name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 1, 
> $vtype);
> +    }
>  
>      my (undef, $tmpfmt) = PVE::Storage::Plugin::parse_name_dir($name);
>  
> diff --git a/src/PVE/Storage/ESXiPlugin.pm b/src/PVE/Storage/ESXiPlugin.pm
> index ea2f8f9..d10b156 100644
> --- a/src/PVE/Storage/ESXiPlugin.pm
> +++ b/src/PVE/Storage/ESXiPlugin.pm
> @@ -480,7 +480,7 @@ sub path {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      die "creating images is not supported for $class\n";
>  }
> diff --git a/src/PVE/Storage/ISCSIDirectPlugin.pm 
> b/src/PVE/Storage/ISCSIDirectPlugin.pm
> index 98a3391..0fee541 100644
> --- a/src/PVE/Storage/ISCSIDirectPlugin.pm
> +++ b/src/PVE/Storage/ISCSIDirectPlugin.pm
> @@ -140,7 +140,7 @@ sub clone_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      die "can't allocate space in iscsi storage\n";
>  }
> diff --git a/src/PVE/Storage/ISCSIPlugin.pm b/src/PVE/Storage/ISCSIPlugin.pm
> index 77a9173..5118d73 100644
> --- a/src/PVE/Storage/ISCSIPlugin.pm
> +++ b/src/PVE/Storage/ISCSIPlugin.pm
> @@ -402,7 +402,7 @@ sub clone_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      die "can't allocate space in iscsi storage\n";
>  }
> diff --git a/src/PVE/Storage/LVMPlugin.pm b/src/PVE/Storage/LVMPlugin.pm
> index 55c4578..af789ba 100644
> --- a/src/PVE/Storage/LVMPlugin.pm
> +++ b/src/PVE/Storage/LVMPlugin.pm
> @@ -535,7 +535,7 @@ sub clone_image {
>  }
>  
>  sub find_free_diskname {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix, $vtype) = @_;
>  
>      my $vg = $scfg->{vgname};
>  
> @@ -546,7 +546,7 @@ sub find_free_diskname {
>      $add_fmt_suffix = $fmt && $fmt eq 'qcow2' ? 1 : undef;
>  
>      return PVE::Storage::Plugin::get_next_vm_diskname(
> -        $disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix,
> +        $disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix, $vtype,
>      );
>  }
>  
> @@ -628,8 +628,8 @@ my sub calculate_lvm_size {
>      return $info->{'fully-allocated'} / 1024;
>  }
>  
> -my sub alloc_lvm_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $backing_snap) = 
> @_;
> +my sub alloc_lvm_image : prototype($$$$$$$$$) {
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $backing_snap, 
> $vtype) = @_;
>  
>      die "unsupported format '$fmt'" if $fmt ne 'raw' && $fmt ne 'qcow2';
>  
> @@ -637,6 +637,20 @@ my sub alloc_lvm_image {
>          if $fmt eq 'qcow2'
>          && !$scfg->{'snapshot-as-volume-chain'};
>  
> +    if ($name) {
> +        if (defined($vtype) && $vtype eq 'vm-vol') {
> +            die "illegal name '$name' - should be 'vol-vm-$vmid-*'\n"
> +                if $name !~ m/^vol-vm-$vmid-/;
> +        } elsif (defined($vtype) && $vtype eq 'ct-vol') {
> +            die "illegal name '$name' - should be 'vol-ct-$vmid-*'\n"
> +                if $name !~ m/^vol-ct-$vmid-/;
> +        } else {
> +            die "illegal name '$name'"
> +                . " - should be 'vm-$vmid-*', 'vol-vm-$vmid-*' or 
> 'vol-ct-$vmid-*'\n"
> +                if $name !~ m/^(?:vol-vm|vol-ct|vm)-$vmid-/;
> +        }
> +    }
> +

same question here..

>      $class->parse_volname($name);
>  
>      my $vgs = lvm_vgs();
> @@ -672,20 +686,20 @@ my sub alloc_lvm_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
> -    $name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt)
> +    $name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 0, 
> $vtype)
>          if !$name;
>  
> -    alloc_lvm_image($class, $storeid, $scfg, $vmid, $fmt, $name, $size);
> +    alloc_lvm_image($class, $storeid, $scfg, $vmid, $fmt, $name, $size, 
> undef, $vtype);
>  
>      return $name;
>  }
>  
> -my sub alloc_snap_image {
> +my sub alloc_snap_image : prototype($$$$$) {
>      my ($class, $storeid, $scfg, $volname, $backing_snap) = @_;
>  
> -    my ($vmid, $format) = ($class->parse_volname($volname))[2, 6];
> +    my ($vtype, $vmid, $format) = ($class->parse_volname($volname))[0, 2, 6];
>      my $path = $class->path($scfg, $volname, $storeid, $backing_snap);
>  
>      #we need to use same size than the backing image qcow2 virtual-size
> @@ -694,7 +708,8 @@ my sub alloc_snap_image {
>  
>      $size = $size / 1024; #we use kb in lvcreate
>  
> -    alloc_lvm_image($class, $storeid, $scfg, $vmid, $format, $volname, 
> $size, $backing_snap);
> +    alloc_lvm_image($class, $storeid, $scfg, $vmid, $format, $volname, 
> $size, $backing_snap,
> +        $vtype);
>  }
>  
>  my sub free_snap_image {
> diff --git a/src/PVE/Storage/LvmThinPlugin.pm 
> b/src/PVE/Storage/LvmThinPlugin.pm
> index f6615d9..2071822 100644
> --- a/src/PVE/Storage/LvmThinPlugin.pm
> +++ b/src/PVE/Storage/LvmThinPlugin.pm
> @@ -122,12 +122,23 @@ my $set_lv_autoactivation = sub {
>  };
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      die "unsupported format '$fmt'" if $fmt ne 'raw';
>  
> -    die "illegal name '$name' - should be 'vm-$vmid-*'\n"
> -        if $name && $name !~ m/^vm-$vmid-/;
> +    if ($name) {
> +        if (defined($vtype) && $vtype eq 'vm-vol') {
> +            die "illegal name '$name' - should be 'vol-vm-$vmid-*'\n"
> +                if $name !~ m/^vol-vm-$vmid-/;
> +        } elsif (defined($vtype) && $vtype eq 'ct-vol') {
> +            die "illegal name '$name' - should be 'vol-ct-$vmid-*'\n"
> +                if $name !~ m/^vol-ct-$vmid-/;
> +        } else {
> +            die "illegal name '$name'"
> +                . " - should be 'vm-$vmid-*', 'vol-vm-$vmid-*' or 
> 'vol-ct-$vmid-*'\n"
> +                if $name !~ m/^(?:vol-vm|vol-ct|vm)-$vmid-/;
> +        }
> +    }

and here..

>  
>      my $vgs = PVE::Storage::LVMPlugin::lvm_vgs();
>  
> @@ -135,7 +146,7 @@ sub alloc_image {
>  
>      die "no such volume group '$vg'\n" if !defined($vgs->{$vg});
>  
> -    $name = $class->find_free_diskname($storeid, $scfg, $vmid)
> +    $name = $class->find_free_diskname($storeid, $scfg, $vmid, undef, 0, 
> $vtype)
>          if !$name;
>  
>      my $cmd = [
> diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm
> index 660045d..adaca47 100644
> --- a/src/PVE/Storage/Plugin.pm
> +++ b/src/PVE/Storage/Plugin.pm
> @@ -851,7 +851,7 @@ sub filesystem_path {
>  
>      my $dir = $class->get_subdir($scfg, $vtype);
>  
> -    $dir .= "/$vmid" if $vtype eq 'images';
> +    $dir .= "/$vmid" if PVE::Storage::Common::is_volume_type($vtype);
>  
>      my $path = "$dir/$name";
>  
> @@ -912,30 +912,34 @@ sub create_base {
>  }
>  
>  my $get_vm_disk_number = sub {
> -    my ($disk_name, $scfg, $vmid, $suffix) = @_;
> -
> -    my $disk_regex = qr/(vm|base)-$vmid-disk-(\d+)$suffix/;
> -
> -    my $type = $scfg->{type};
> -    my $def = { %{ $defaultData->{plugindata}->{$type} } };
> -
> -    my $valid = $def->{format}->[0];
> -    if ($valid->{subvol}) {
> -        $disk_regex = qr/(vm|base|subvol|basevol)-$vmid-disk-(\d+)/;
> -    }
> -
> -    if ($disk_name =~ m/$disk_regex/) {
> -        return $2;
> +    my ($disk_volid, $scfg, $vmid, $suffix) = @_;
> +
> +    # Dir storage have a vmid/ subdir, zfs/lvm/rbd/... do not.
> +    # Also: LVM storages don't pass the `storeid:` prefix...

should we fix that up?

> +    if ($disk_volid =~ m!^(?:[^:]+:)? (?:\d+/)? $DISK_NAME_REGEX $!xn) {
> +        my $label = $+{label};
> +        # Dir storages have a format suffix, zfs/lvm/rbd/... do not.
> +        if ($label =~ /^disk-(\d+)(?:\..*)?$/) {
> +            return int($1);
> +        }
>      }
>  
>      return undef;
>  };
>  
> +# note: disk_list is an array of *volids*
>  sub get_next_vm_diskname {
> -    my ($disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix) = @_;
> +    my ($disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix, $vtype) = 
> @_;
>  
>      $fmt //= '';
> -    my $prefix = ($fmt eq 'subvol') ? 'subvol' : 'vm';
> +    my $prefix;
> +    if (defined($vtype) && $vtype eq 'vm-vol') {
> +        $prefix = 'vol-vm';
> +    } elsif (defined($vtype) && $vtype eq 'ct-vol') {
> +        $prefix = ($fmt eq 'subvol') ? 'subvol-ct' : 'vol-ct';
> +    } else {
> +        $prefix = ($fmt eq 'subvol') ? 'subvol' : 'vm';
> +    }
>      my $suffix = $add_fmt_suffix ? ".$fmt" : '';
>  
>      my $disk_ids = {};
> @@ -954,13 +958,13 @@ sub get_next_vm_diskname {
>  }
>  
>  sub find_free_diskname {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix, $vtype) = @_;
>  
> -    my $disks = $class->list_images($storeid, $scfg, $vmid);
> +    my $disks = $class->list_images($storeid, $scfg, $vmid, undef, undef, 
> $vtype);
>  
>      my $disk_list = [map { $_->{volid} } @$disks];
>  
> -    return get_next_vm_diskname($disk_list, $storeid, $vmid, $fmt, $scfg, 
> $add_fmt_suffix);
> +    return get_next_vm_diskname($disk_list, $storeid, $vmid, $fmt, $scfg, 
> $add_fmt_suffix, $vtype);
>  }
>  
>  sub clone_image {
> @@ -1011,14 +1015,23 @@ sub clone_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
> -    my $imagedir = $class->get_subdir($scfg, 'images');
> +    my $imagedir = $class->get_subdir($scfg, $vtype // 'images');
>      $imagedir .= "/$vmid";
>  
>      mkpath $imagedir;
>  
> -    $name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 1) if 
> !$name;
> +    if ($name) {
> +        if (defined($vtype)) {
> +            die "illegal name '$name' - should be 'vol-vm-$vmid-*'\n"
> +                if $vtype eq 'vm-vol' && $name !~ m/^vol-vm-$vmid-/;
> +            die "illegal name '$name' - should be 'vol-ct-$vmid-*'\n"
> +                if $vtype eq 'ct-vol' && $name !~ m/^vol-ct-$vmid-/;
> +        }

same question here

> +    } else {
> +        $name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 1, 
> $vtype);
> +    }
>  
>      my (undef, $tmpfmt) = parse_name_dir($name);
>  
> diff --git a/src/PVE/Storage/RBDPlugin.pm b/src/PVE/Storage/RBDPlugin.pm
> index 2ef1280..839ff73 100644
> --- a/src/PVE/Storage/RBDPlugin.pm
> +++ b/src/PVE/Storage/RBDPlugin.pm
> @@ -620,7 +620,7 @@ sub qemu_blockdev_options {
>  }
>  
>  sub find_free_diskname {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix, $vtype) = @_;
>  
>      my $cmd = $rbd_cmd->($scfg, $storeid, 'ls');
>  
> @@ -640,7 +640,9 @@ sub find_free_diskname {
>  
>      die $err if $err && $err !~ m/doesn't contain rbd images/;
>  
> -    return PVE::Storage::Plugin::get_next_vm_diskname($disk_list, $storeid, 
> $vmid, undef, $scfg);
> +    return PVE::Storage::Plugin::get_next_vm_diskname(
> +        $disk_list, $storeid, $vmid, undef, $scfg, 0, $vtype,
> +    );
>  }
>  
>  sub create_base {
> @@ -730,12 +732,23 @@ sub clone_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> -
> -    die "illegal name '$name' - should be 'vm-$vmid-*'\n"
> -        if $name && $name !~ m/^vm-$vmid-/;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
> +
> +    if ($name) {
> +        if (defined($vtype) && $vtype eq 'vm-vol') {
> +            die "illegal name '$name' - should be 'vol-vm-$vmid-*'\n"
> +                if $name !~ m/^vol-vm-$vmid-/;
> +        } elsif (defined($vtype) && $vtype eq 'ct-vol') {
> +            die "illegal name '$name' - should be 'vol-ct-$vmid-*'\n"
> +                if $name !~ m/^vol-ct-$vmid-/;
> +        } else {
> +            die "illegal name '$name'"
> +                . " - should be 'vm-$vmid-*', 'vol-vm-$vmid-*' or 
> 'vol-ct-$vmid-*'\n"
> +                if $name !~ m/^(?:vol-vm|vol-ct|vm)-$vmid-/;
> +        }

and also here

> +    }
>  
> -    $name = $class->find_free_diskname($storeid, $scfg, $vmid) if !$name;
> +    $name = $class->find_free_diskname($storeid, $scfg, $vmid, undef, 0, 
> $vtype) if !$name;
>  
>      my @options = (
>          '--image-format', 2, '--size', int(($size + 1023) / 1024),
> diff --git a/src/PVE/Storage/ZFSPlugin.pm b/src/PVE/Storage/ZFSPlugin.pm
> index a05f521..259e468 100644
> --- a/src/PVE/Storage/ZFSPlugin.pm
> +++ b/src/PVE/Storage/ZFSPlugin.pm
> @@ -355,16 +355,25 @@ sub clone_image {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      die "unsupported format '$fmt'" if $fmt ne 'raw';
>  
> -    die "illegal name '$name' - should be 'vm-$vmid-*'\n"
> -        if $name && $name !~ m/^vm-$vmid-/;
> +    if ($name) {
> +        if (defined($vtype) && $vtype eq 'vm-vol') {
> +            die "illegal name '$name' - should be 'vol-vm-$vmid-*'\n"
> +                if $name !~ m/^vol-vm-$vmid-/;
> +        } elsif (defined($vtype) && $vtype eq 'ct-vol') {
> +            die "non-subvolumes not allowed for containers\n";
> +        } else {
> +            die "illegal name '$name'" . " - should be 'vm-$vmid-*', 
> 'vol-vm-$vmid-*'\n"
> +                if $name !~ m/^(?:vol-vm|vm)-$vmid-/;
> +        }
> +    }

and here

>  
>      my $volname = $name;
>  
> -    $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt) if 
> !$volname;
> +    $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 0, 
> $vtype) if !$volname;
>  
>      $class->zfs_create_zvol($scfg, $volname, $size);
>  
> diff --git a/src/PVE/Storage/ZFSPoolPlugin.pm 
> b/src/PVE/Storage/ZFSPoolPlugin.pm
> index d65af69..f972718 100644
> --- a/src/PVE/Storage/ZFSPoolPlugin.pm
> +++ b/src/PVE/Storage/ZFSPoolPlugin.pm
> @@ -271,29 +271,42 @@ sub zfs_wait_for_zvol_link {
>  }
>  
>  sub alloc_image {
> -    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
> +    my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size, $vtype) = @_;
>  
>      my $volname = $name;
>  
>      if ($fmt eq 'raw') {
> -
> -        die "illegal name '$volname' - should be 'vm-$vmid-*'\n"
> -            if $volname && $volname !~ m/^vm-$vmid-/;
> -        $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt)
> +        $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 
> 0, $vtype)
>              if !$volname;
>  
> +        if ($vtype) {
> +            die "'raw' format not allowed for container volumes\n"
> +                if $vtype ne 'vm-vol';
> +
> +            die "illegal name '$volname' - should be 'vol-vm-$vmid-*'\n"
> +                if $volname !~ m/^vol-vm-$vmid-/;
> +        } else {
> +            die "illegal name '$volname' - should be 'vol-vm-$vmid-*' or 
> 'vm-$vmid-*'\n"
> +                if $volname !~ m/^(vol-)?vm-$vmid-/;
> +        }
> +

here as well

>          $class->zfs_create_zvol($scfg, $volname, $size);
>          $class->zfs_wait_for_zvol_link($scfg, $volname);
>  
>      } elsif ($fmt eq 'subvol') {
> -
> -        die "illegal name '$volname' - should be 'subvol-$vmid-*'\n"
> -            if $volname && $volname !~ m/^subvol-$vmid-/;
> -        $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt)
> +        $volname = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 
> 0, $vtype)
>              if !$volname;
>  
> -        die "illegal name '$volname' - should be 'subvol-$vmid-*'\n"
> -            if $volname !~ m/^subvol-$vmid-/;
> +        if ($vtype) {
> +            die "'subvol' format not allowed for VM volumes\n"
> +                if $vtype ne 'ct-vol';
> +
> +            die "illegal name '$volname' - should be 'subvol-ct-$vmid-*'\n"
> +                if $volname !~ m/^subvol-ct-$vmid-/;
> +        } else {
> +            die "illegal name '$volname' - should be 'subvol-ct-$vmid-*' or 
> 'subvol-$vmid-*'\n"
> +                if $volname !~ m/^subvol(-ct)?-$vmid-/;
> +        }

and here as well..

>  
>          $class->zfs_create_subvol($scfg, $volname, $size);
>  
> -- 
> 2.47.2
> 
> 
> 
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> 
> 
> 


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