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api: disks: create: re-check disk after fork/lock

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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.ebner@proxmox.com>
This commit is contained in:
Fabian Ebner 2021-09-28 13:39:41 +02:00 committed by Thomas Lamprecht
parent dcd8f3a3dd
commit e99bc248d4
4 changed files with 13 additions and 3 deletions
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2
PVE/API2/Disks/Directory.pm
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@ -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";

2
PVE/API2/Disks/LVM.pm
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@ -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}) {

2
PVE/API2/Disks/LVMThin.pm
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@ -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

10
PVE/API2/Disks/ZFS.pm
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@ -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];