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sheepdog : find_free_diskname

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Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier
2013-02-05 12:55:48 +01:00
committed by Dietmar Maurer
parent a602d95758
commit 19860f5bae
1 changed files with 24 additions and 15 deletions
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39
PVE/Storage/SheepdogPlugin.pm
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@ -144,6 +144,29 @@ sub path {
return ($path, $vmid, $vtype); return ($path, $vmid, $vtype);
} }
my $find_free_diskname = sub {
my ($storeid, $scfg, $vmid) = @_;
my $sheepdog = sheepdog_ls($scfg, $storeid);
my $dat = $sheepdog->{sheepdog};
my $disk_ids = {};
foreach my $image (keys %$dat) {
my $volname = $dat->{$image}->{name};
if ($volname =~ m/(vm|base)-$vmid-disk-(\d+)/){
$disk_ids->{$2} = 1;
}
}
for (my $i = 1; $i < 100; $i++) {
if (!$disk_ids->{$i}) {
return "vm-$vmid-disk-$i";
}
}
die "unable to allocate an image name for VM $vmid in storage '$storeid'\n";
};
sub create_base { sub create_base {
my ($class, $storeid, $scfg, $volname) = @_; my ($class, $storeid, $scfg, $volname) = @_;
@ -159,24 +182,10 @@ sub clone_image {
sub alloc_image { sub alloc_image {
my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
die "illegal name '$name' - sould be 'vm-$vmid-*'\n" die "illegal name '$name' - sould be 'vm-$vmid-*'\n"
if $name && $name !~ m/^vm-$vmid-/; if $name && $name !~ m/^vm-$vmid-/;
if (!$name) { $name = &$find_free_diskname($storeid, $scfg, $vmid);
my $sheepdog = sheepdog_ls($scfg, $storeid);
for (my $i = 1; $i < 100; $i++) {
my $tn = "vm-$vmid-disk-$i";
if (!defined ($sheepdog->{$storeid}->{$tn})) {
$name = $tn;
last;
}
}
}
die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"
if !$name;
my $cmd = &$collie_cmd($scfg, 'vdi', 'create', $name , "${size}KB"); my $cmd = &$collie_cmd($scfg, 'vdi', 'create', $name , "${size}KB");