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blockdev: add underlay resize

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This commit is contained in:
Tiago Sousa 2025-10-10 18:11:29 +01:00
parent a64abe3e5d
commit 0efbeddfb4
1 changed files with 19 additions and 1 deletions
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20
src/PVE/QemuServer/Blockdev.pm
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@ -715,6 +715,24 @@ sub resize {
);
}
sub underlay_resize {
my ($storecfg, $vmid, $drive_id, $volid) = @_;
my $running = PVE::QemuServer::Helpers::vm_running_locally($vmid);
# get backing_snap
my $snapshots = PVE::Storage::volume_snapshot_info($storecfg, $volid);
my $backing_snap = $snapshots->{current}->{parent};
my $size = PVE::Storage::volume_underlay_resize($storecfg, $volid, $backing_snap);
return if !$running;
my $block_info = get_block_info($vmid);
my $inserted = $block_info->{$drive_id}->{inserted}
or die "no block node inserted for drive '$drive_id'\n";
set_write_threshold($storecfg, $vmid, $drive_id, $volid);
}
my sub blockdev_change_medium {
my ($storecfg, $vmid, $qdev_id, $drive) = @_;
@ -851,7 +869,7 @@ sub block_set_write_threshold {
sub compute_write_threshold {
my ($storecfg, $scfg, $volid) = @_;
my $lv_size = PVE::Storage::volume_size_info($storecfg, $volid, 5);
my $lv_size = PVE::Storage::volume_underlay_size_info($storecfg, $volid, 5);
my $write_threshold = $lv_size - $scfg->{chunksize} * (1 - $scfg->{'chunk-percentage'});