10:39 a.m.
Use qemuAgentFSFreeze() and qemuAgentFSThaw() already implemented for
snapshot quiescing. @mountPoint must be NULL and @flags zero, because
qemu guest agent doesn't support these arguments so far.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama(a)hds.com>
---
src/qemu/qemu_driver.c | 142 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 142 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ef1359c..4e7cdcc 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -15705,6 +15705,146 @@ qemuConnectGetCPUModelNames(virConnectPtr conn,
}
+static int
+qemuDomainFSFreeze(virDomainPtr dom,
+ const char *mountPoint,
+ unsigned int flags)
+{
+ virQEMUDriverPtr driver = dom->conn->privateData;
+ virDomainObjPtr vm;
+ int ret = -1;
+ qemuDomainObjPrivatePtr priv;
+
+ virCheckFlags(0, -1);
+
+ if (mountPoint) {
+ virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("Specifying mount point "
+ "is not supported for now"));
+ return -1;
+ }
+
+ if (!(vm = qemuDomObjFromDomain(dom)))
+ goto cleanup;
+
+ priv = vm->privateData;
+
+ if (virDomainFSFreezeEnsureACL(dom->conn, vm->def) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto cleanup;
+ }
+
+ if (!priv->agent) {
+ virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("QEMU guest agent is not configured"));
+ goto cleanup;
+ }
+
+ if (priv->agentError) {
+ virReportError(VIR_ERR_AGENT_UNRESPONSIVE, "%s",
+ _("QEMU guest agent is not "
+ "available due to an error"));
+ goto cleanup;
+ }
+
+ if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto endjob;
+ }
+
+ qemuDomainObjEnterAgent(vm);
+ ret = qemuAgentFSFreeze(priv->agent);
+ qemuDomainObjExitAgent(vm);
+
+endjob:
+ if (!qemuDomainObjEndJob(driver, vm))
+ vm = NULL;
+
+cleanup:
+ if (vm)
+ virObjectUnlock(vm);
+ return ret;
+}
+
+
+static int
+qemuDomainFSThaw(virDomainPtr dom,
+ const char *mountPoint,
+ unsigned int flags)
+{
+ virQEMUDriverPtr driver = dom->conn->privateData;
+ virDomainObjPtr vm;
+ int ret = -1;
+ qemuDomainObjPrivatePtr priv;
+
+ virCheckFlags(0, -1);
+
+ if (mountPoint) {
+ virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("Specifying mount point "
+ "is not supported for now"));
+ return -1;
+ }
+
+ if (!(vm = qemuDomObjFromDomain(dom)))
+ goto cleanup;
+
+ priv = vm->privateData;
+
+ if (virDomainFSFreezeEnsureACL(dom->conn, vm->def) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto cleanup;
+ }
+
+ if (!priv->agent) {
+ virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("QEMU guest agent is not configured"));
+ goto cleanup;
+ }
+
+ if (priv->agentError) {
+ virReportError(VIR_ERR_AGENT_UNRESPONSIVE, "%s",
+ _("QEMU guest agent is not "
+ "available due to an error"));
+ goto cleanup;
+ }
+
+ if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto endjob;
+ }
+
+ qemuDomainObjEnterAgent(vm);
+ ret = qemuAgentFSThaw(priv->agent);
+ qemuDomainObjExitAgent(vm);
+
+endjob:
+ if (!qemuDomainObjEndJob(driver, vm))
+ vm = NULL;
+
+cleanup:
+ if (vm)
+ virObjectUnlock(vm);
+ return ret;
+}
+
+
static virDriver qemuDriver = {
.no = VIR_DRV_QEMU,
.name = QEMU_DRIVER_NAME,
@@ -15892,6 +16032,8 @@ static virDriver qemuDriver = {
.domainMigrateFinish3Params = qemuDomainMigrateFinish3Params, /* 1.1.0 */
.domainMigrateConfirm3Params = qemuDomainMigrateConfirm3Params, /* 1.1.0 */
.connectGetCPUModelNames = qemuConnectGetCPUModelNames, /* 1.1.3 */
+ .domainFSFreeze = qemuDomainFSFreeze, /* 1.1.5 */
+ .domainFSThaw = qemuDomainFSThaw, /* 1.1.5 */
};