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Introduce __snapshot_create_vol_snapshots_hook

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This hook runs before and after creating volume snapshots,
as well as after unfreezing. Only needed for Qemu right now,
so the base case in PVE::AbstractConfig is a noop.
This commit is contained in:
Fabian Grünbichler 2016-03-07 12:38:37 +01:00 committed by Dietmar Maurer
parent bf536088d7
commit ba9db5df17
1 changed files with 12 additions and 0 deletions
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12
src/PVE/AbstractConfig.pm
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@ -221,6 +221,14 @@ sub __snapshot_freeze {
die "abstract method - implement me\n";
}
# Code run before and after creating all the volume snapshots
# base: noop
sub __snapshot_create_vol_snapshots_hook {
my ($class, $vmid, $snap, $running, $hook) = @_;
return;
}
# Create the volume snapshots for the VM/CT.
sub __snapshot_create_vol_snapshot {
my ($class, $vmid, $vs, $volume, $snapname) = @_;
@ -413,6 +421,8 @@ sub snapshot_create {
$class->__snapshot_freeze($vmid, 0);
}
$class->__snapshot_create_vol_snapshots_hook($vmid, $snap, $running, "before");
$class->__snapshot_foreach_volume($snap, sub {
my ($vs, $volume) = @_;
@ -423,9 +433,11 @@ sub snapshot_create {
my $err = $@;
if ($running) {
$class->__snapshot_create_vol_snapshots_hook($vmid, $snap, $running, "after");
if ($freezefs) {
$class->__snapshot_freeze($vmid, 1);
}
$class->__snapshot_create_vol_snapshots_hook($vmid, $snap, $running, "after-unfreeze");
}
if ($err) {