Because then it might not be unused anymore. If there really is a
race, this prevents e.g. sgdisk creating a partition on a device
already in use by LVM or LVM destroying a partitioned device.

For ZFS, also get the latest udev info once inside the worker.

Signed-off-by: Fabian Ebner <f.eb...@proxmox.com>
---
 PVE/API2/Disks/Directory.pm |  2 ++
 PVE/API2/Disks/LVM.pm       |  2 ++
 PVE/API2/Disks/LVMThin.pm   |  2 ++
 PVE/API2/Disks/ZFS.pm       | 10 +++++++---
 4 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/PVE/API2/Disks/Directory.pm b/PVE/API2/Disks/Directory.pm
index 2decb89..0068db6 100644
--- a/PVE/API2/Disks/Directory.pm
+++ b/PVE/API2/Disks/Directory.pm
@@ -212,6 +212,8 @@ __PACKAGE__->register_method ({
            my $mountunitpath = "/etc/systemd/system/$mountunitname";
 
            PVE::Diskmanage::locked_disk_action(sub {
+               PVE::Diskmanage::assert_disk_unused($dev);
+
                # create partition
                my $cmd = [$SGDISK, '-n1', '-t1:8300', $dev];
                print "# ", join(' ', @$cmd), "\n";
diff --git a/PVE/API2/Disks/LVM.pm b/PVE/API2/Disks/LVM.pm
index 569e9d1..2c216c0 100644
--- a/PVE/API2/Disks/LVM.pm
+++ b/PVE/API2/Disks/LVM.pm
@@ -154,6 +154,8 @@ __PACKAGE__->register_method ({
 
        my $worker = sub {
            PVE::Diskmanage::locked_disk_action(sub {
+               PVE::Diskmanage::assert_disk_unused($dev);
+
                PVE::Storage::LVMPlugin::lvm_create_volume_group($dev, $name);
 
                if ($param->{add_storage}) {
diff --git a/PVE/API2/Disks/LVMThin.pm b/PVE/API2/Disks/LVMThin.pm
index 4d303f8..81d91a6 100644
--- a/PVE/API2/Disks/LVMThin.pm
+++ b/PVE/API2/Disks/LVMThin.pm
@@ -108,6 +108,8 @@ __PACKAGE__->register_method ({
 
        my $worker = sub {
            PVE::Diskmanage::locked_disk_action(sub {
+               PVE::Diskmanage::assert_disk_unused($dev);
+
                PVE::Storage::LVMPlugin::lvm_create_volume_group($dev, $name);
                my $pv = PVE::Storage::LVMPlugin::lvm_pv_info($dev);
                # keep some free space just in case
diff --git a/PVE/API2/Disks/ZFS.pm b/PVE/API2/Disks/ZFS.pm
index 60077c4..885b93c 100644
--- a/PVE/API2/Disks/ZFS.pm
+++ b/PVE/API2/Disks/ZFS.pm
@@ -345,9 +345,6 @@ __PACKAGE__->register_method ({
        foreach my $dev (@$devs) {
            $dev = PVE::Diskmanage::verify_blockdev_path($dev);
            PVE::Diskmanage::assert_disk_unused($dev);
-           my $sysfsdev = $dev =~ s!^/dev/!/sys/block/!r;
-           my $udevinfo = PVE::Diskmanage::get_udev_info($sysfsdev);
-           $dev = $udevinfo->{by_id_link} if defined($udevinfo->{by_id_link});
        }
 
        PVE::Storage::assert_sid_unused($name) if $param->{add_storage};
@@ -374,6 +371,13 @@ __PACKAGE__->register_method ({
 
        my $worker = sub {
            PVE::Diskmanage::locked_disk_action(sub {
+               for my $dev (@$devs) {
+                   PVE::Diskmanage::assert_disk_unused($dev);
+                   my $sysfsdev = $dev =~ s!^/dev/!/sys/block/!r;
+                   my $udevinfo = PVE::Diskmanage::get_udev_info($sysfsdev);
+                   $dev = $udevinfo->{by_id_link} if 
defined($udevinfo->{by_id_link});
+               }
+
                # create zpool with desired raidlevel
 
                my $cmd = [$ZPOOL, 'create', '-o', "ashift=$ashift", $name];
-- 
2.30.2



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