For the series:

Tested-by: Stefan Reiter <s.rei...@proxmox.com>
Reviewed-by: Stefan Reiter <s.rei...@proxmox.com>

One small thing I noticed is that when Agent is enabled, guest_fstrim enabled, VM running and one disables the Agent but does not touch the guest_fstrim box, 'agent: 0' is set to pending, but guest_fstrim is also fastplugged to off. This makes sense, since the GUI doesn't send a value for a 'disabled' state checkbox, but might seem weird to a user who never touched the checkbox (and it still looks checked, just grayed out). Certainly an edge case, and a GUI issue if at all, so I'd say this series is fine as is.

On 2/19/20 5:07 PM, Oguz Bektas wrote:
adds a loop after the main fastplug loop, to check if any of the options
are partially fast pluggable.

these are defined in $partial_fast_plug_option

Signed-off-by: Oguz Bektas <o.bek...@proxmox.com>
---

v1->v2:
* set $changes according to partial_fast_plug result as well as fast_plug result
* do cleanup_pending before writing fastplug changes



  PVE/QemuConfig.pm |  7 +++++++
  PVE/QemuServer.pm | 19 +++++++++++++++++++
  2 files changed, 26 insertions(+)

diff --git a/PVE/QemuConfig.pm b/PVE/QemuConfig.pm
index 1ba728a..d1727b2 100644
--- a/PVE/QemuConfig.pm
+++ b/PVE/QemuConfig.pm
@@ -399,6 +399,13 @@ sub __snapshot_foreach_volume {
PVE::QemuServer::foreach_drive($conf, $func);
  }
+
+sub get_partial_fast_plug_option {
+    my ($class) = @_;
+
+    return $PVE::QemuServer::partial_fast_plug_option;
+}
+
  # END implemented abstract methods from PVE::AbstractConfig
1;
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 44d0dee..8a689a0 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -4732,6 +4732,18 @@ my $fast_plug_option = {
      'tags' => 1,
  };
+# name of opt
+# -> fmt -> format variable
+# -> properties -> fastpluggable options hash
+our $partial_fast_plug_option = {
+    agent => {
+       fmt => $agent_fmt,
+       properties => {
+           fstrim_cloned_disks => 1
+       },
+    },
+};
+
  # hotplug changes in [PENDING]
  # $selection hash can be used to only apply specified options, for
  # example: { cores => 1 } (only apply changed 'cores')
@@ -4761,7 +4773,14 @@ sub vmconfig_hotplug_pending {
        }
      }
+ foreach my $opt (keys %{$conf->{pending}}) {
+       if ($partial_fast_plug_option->{$opt}) {
+           $changes ||= PVE::QemuConfig->partial_fast_plug($conf, $opt);
+       }
+    }
+
      if ($changes) {
+       PVE::QemuConfig->cleanup_pending($conf);
        PVE::QemuConfig->write_config($vmid, $conf);
      }

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