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add sub has_feature

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loop over each disk of the vm config file to find if feature is available.

If one of the disk doesn't have the feature, we return undef, else return 1

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier 2012-12-27 16:06:54 +01:00 committed by Dietmar Maurer
parent 135007c099
commit 7ea975efe0
1 changed files with 15 additions and 22 deletions
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37
PVE/QemuServer.pm
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@ -4059,28 +4059,7 @@ my $snapshot_prepare = sub {
if defined($conf->{snapshots}->{$snapname}); if defined($conf->{snapshots}->{$snapname});
my $storecfg = PVE::Storage::config(); my $storecfg = PVE::Storage::config();
die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
foreach_drive($conf, sub {
my ($ds, $drive) = @_;
return if drive_is_cdrom($drive);
my $volid = $drive->{file};
my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
if ($storeid) {
my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
die "can't snapshot volume '$volid'\n"
if !(($scfg->{path} && $volname =~ m/\.qcow2$/) ||
($scfg->{type} eq 'nexenta') ||
($scfg->{type} eq 'rbd') ||
($scfg->{type} eq 'sheepdog'));
} elsif ($volid =~ m|^(/.+)$| && -e $volid) {
die "snapshot device '$volid' is not possible\n";
} else {
die "can't snapshot volume '$volid'\n";
}
});
$snap = $conf->{snapshots}->{$snapname} = {}; $snap = $conf->{snapshots}->{$snapname} = {};
@ -4380,4 +4359,18 @@ sub snapshot_delete {
lock_config($vmid, $updatefn); lock_config($vmid, $updatefn);
} }
sub has_feature{
my ($feature, $conf, $storecfg, $snapname, $running) = @_;
my $err = undef;
foreach_drive($conf, sub {
my ($ds, $drive) = @_;
return if drive_is_cdrom($drive);
my $volid = $drive->{file};
$err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
});
return 1 if !$err;
}
1; 1;