enable drive-mirror with iothread for qemu 2.7 v2

changelog : check running qemu binary version

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 637632385fc70340644beedcb16e23ffb07e0d4e..2ac44d125b555c6d427a6d40a5ddcb27977dd948 100644 (file)
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -5927,8 +5927,11 @@ sub clone_disk {
        if (!$running || $snapname) {
            qemu_img_convert($drive->{file}, $newvolid, $size, $snapname, $sparseinit);
        } else {
-           #qemu 2.6
-           die "drive-mirror is not working currently when iothread is enabled" if $drive->{iothread};
+
+           my $kvmver = get_running_qemu_version ($vmid);
+           if (!qemu_machine_feature_enabled (undef, $kvmver, 2, 7)) {
+               die "drive-mirror with iothread only works since qemu 2.7" if $drive->{iothread};
+           }
 
            qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid, $sparseinit);
        }