[libvirt] [PATCH] qemu: Transition domain to PAUSED after 'stop' command

Currently, we mark domain PAUSED (but not emit an event) just before we issue 'stop' on monitor; This command can take ages to finish, esp. when domain's doing a lot of IO - users can enforce qemu to open files with O_DIRECT which doesn't return from write() until data reaches the block device. Having said that, we report PAUSED even if domain is not paused yet. --- The event is emitted correctly after all operations returns though. But if mgmt app would 'virsh domstate $dom' as we are issuing 'stop' monitor command it could get spurious results. src/qemu/qemu_process.c | 7 +------ 1 files changed, 1 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index c28f5a5..b6eb342 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -2708,13 +2708,9 @@ int qemuProcessStopCPUs(struct qemud_driver *driver, virDomainObjPtr vm, enum qemuDomainAsyncJob asyncJob) { int ret; - int oldState; - int oldReason; qemuDomainObjPrivatePtr priv = vm->privateData; VIR_FREE(priv->lockState); - oldState = virDomainObjGetState(vm, &oldReason); - virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, reason); ret = qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob); if (ret == 0) { @@ -2723,11 +2719,10 @@ int qemuProcessStopCPUs(struct qemud_driver *driver, virDomainObjPtr vm, } if (ret == 0) { + virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, reason); if (virDomainLockProcessPause(driver->lockManager, vm, &priv->lockState) < 0) VIR_WARN("Unable to release lease on %s", vm->def->name); VIR_DEBUG("Preserving lock state '%s'", NULLSTR(priv->lockState)); - } else { - virDomainObjSetState(vm, oldState, oldReason); } return ret; -- 1.7.8.6