so that we can show a proper warning in the migrate dialog and check it
in the bulk migrate precondition check

the unavailable_storages and should be the same as before, but
we now always return allowed_nodes too.

also add a note that we want to redesign the return values here, to make
* the api call simpler
* return better structured values

Signed-off-by: Dominik Csapak <d.csa...@proxmox.com>
---
 PVE/API2/Qemu.pm | 39 ++++++++++++++++++++++-----------------
 1 file changed, 22 insertions(+), 17 deletions(-)

diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index f95d8d95..94aa9942 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -4450,18 +4450,20 @@ __PACKAGE__->register_method({
        },
     },
     returns => {
+       # TODO 9.x: rework the api call to return more sensible structures
+       # e.g. a simple list of nodes with their blockers and/or notices to show
        type => "object",
        properties => {
            running => { type => 'boolean' },
            allowed_nodes => {
                type => 'array',
                optional => 1,
-               description => "List nodes allowed for offline migration, only 
passed if VM is offline"
+               description => "List nodes allowed for offline migration.",
            },
            not_allowed_nodes => {
                type => 'object',
                optional => 1,
-               description => "List not allowed nodes with additional 
informations, only passed if VM is offline"
+               description => "List not allowed nodes with additional 
information.",
            },
            local_disks => {
                type => 'array',
@@ -4518,28 +4520,31 @@ __PACKAGE__->register_method({
 
        # if vm is not running, return target nodes where local storage/mapped 
devices are available
        # for offline migration
+       $res->{allowed_nodes} = [];
+       $res->{not_allowed_nodes} = {};
        if (!$res->{running}) {
-           $res->{allowed_nodes} = [];
-           my $checked_nodes = 
PVE::QemuServer::check_local_storage_availability($vmconf, $storecfg);
-           delete $checked_nodes->{$localnode};
-
-           foreach my $node (keys %$checked_nodes) {
-               my $missing_mappings = $missing_mappings_by_node->{$node};
-               if (scalar($missing_mappings->@*)) {
-                   $checked_nodes->{$node}->{'unavailable-resources'} = 
$missing_mappings;
-                   next;
-               }
+           $res->{not_allowed_nodes} = 
PVE::QemuServer::check_local_storage_availability($vmconf, $storecfg);
+           delete $res->{not_allowed_nodes}->{$localnode};
+       }
 
-               if (!defined($checked_nodes->{$node}->{unavailable_storages})) {
-                   push @{$res->{allowed_nodes}}, $node;
-               }
+       my $merged = { $res->{not_allowed_nodes}->%*, 
$missing_mappings_by_node->%* };
 
+       for my $node (keys $merged->%*) {
+           my $missing_mappings = $missing_mappings_by_node->{$node};
+           if (scalar($missing_mappings->@*)) {
+               $res->{not_allowed_nodes}->{$node}->{'unavailable-resources'} = 
$missing_mappings;
+               next;
+           }
+
+           if (!$res->{running}) {
+               if 
(!defined($res->{not_allowed_nodes}->{$node}->{unavailable_storages})) {
+                   push $res->{allowed_nodes}->@*, $node;
+               }
            }
-           $res->{not_allowed_nodes} = $checked_nodes;
        }
 
        my $local_disks = &$check_vm_disks_local($storecfg, $vmconf, $vmid);
-       $res->{local_disks} = [ values %$local_disks ];;
+       $res->{local_disks} = [ values %$local_disks ];
 
        $res->{local_resources} = $local_resources;
        $res->{'mapped-resources'} = [ keys $mapped_resources->%* ];
-- 
2.39.2



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