Piotr Kliczewski has submitted this change and it was merged. Change subject: core: acquire vm lock on RestoreStatelessVm ...................................................................... core: acquire vm lock on RestoreStatelessVm RestoreStatelessVm calls two commands: 1. UpdateVmVersion 2. RestoreAllSnapshots Both used to take exclusive lock on the VM. Change I870ef6 modified UpdateVmVersion so it will not acquire the VM lock when it is called by RestoreStatelessVm but that's because we assume RestoreStatelessVm locked the VM which is not always the case. So this patch changes RestoreStatelessVm to lock the VM. It is safe to do since UpdateVmVersion and RestoreAllSnapshots used to do it later in the control flow as well. This lock is passed to RestoreAllSnapshot so it doesn't try to lock the VM as well. Change-Id: I3e52fafa8fcb1976c309e5ea79227e9dc1a3c01c Bug-Url: https://bugzilla.redhat.com/1346270 Signed-off-by: Arik Hadas <ahadas(a)redhat.com&gt; --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/RestoreStatelessVmCommand.java 1 file changed, 18 insertions(+), 0 deletions(-) Approvals: Piotr Kliczewski: Passed CI tests Shahar Havivi: Looks good to me, approved Arik Hadas: Verified -- To view, visit https://gerrit.ovirt.org/59690 To unsubscribe, visit https://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I3e52fafa8fcb1976c309e5ea79227e9dc1a3c01c Gerrit-PatchSet: 3 Gerrit-Project: ovirt-engine Gerrit-Branch: ovirt-engine-4.0 Gerrit-Owner: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Arik Hadas <ahadas(a)redhat.com&gt; Gerrit-Reviewer: Liron Aravot <laravot(a)redhat.com&gt; Gerrit-Reviewer: Piotr Kliczewski <piotr.kliczewski(a)gmail.com&gt; Gerrit-Reviewer: Shahar Havivi <shavivi(a)redhat.com&gt; Gerrit-Reviewer: Shmuel Leib Melamud <smelamud(a)redhat.com&gt; Gerrit-Reviewer: gerrit-hooks <automation(a)ovirt.org&gt;