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qemu: Implement virDomainFSFreeze and virDomainFSThaw

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Use qemuDomainSnapshotFSFreeze() and qemuDomainSnapshotFSFThaw() which are
already implemented for snapshot quiescing.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
This commit is contained in:
Tomoki Sekiyama 2014-05-01 20:06:07 -04:00 committed by Eric Blake
parent b4e4dfffdb
commit 4acccdf13c
1 changed files with 98 additions and 0 deletions
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98
src/qemu/qemu_driver.c
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@ -16549,6 +16549,102 @@ qemuConnectGetCPUModelNames(virConnectPtr conn,
}
static int
qemuDomainFSFreeze(virDomainPtr dom,
const char **mountpoints,
unsigned int nmountpoints,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
if (mountpoints || nmountpoints) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("specifying mountpoints is not supported"));
return ret;
}
if (!(vm = qemuDomObjFromDomain(dom)))
goto cleanup;
if (virDomainFSFreezeEnsureACL(dom->conn, vm->def) < 0)
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;
}
ret = qemuDomainSnapshotFSFreeze(driver, vm);
if (ret == -2) {
qemuDomainSnapshotFSThaw(driver, vm, false);
ret = -1;
}
endjob:
if (!qemuDomainObjEndJob(driver, vm))
vm = NULL;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
qemuDomainFSThaw(virDomainPtr dom,
const char **mountpoints,
unsigned int nmountpoints,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
if (mountpoints || nmountpoints) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("specifying mountpoints is not supported"));
return ret;
}
if (!(vm = qemuDomObjFromDomain(dom)))
goto cleanup;
if (virDomainFSThawEnsureACL(dom->conn, vm->def) < 0)
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;
}
ret = qemuDomainSnapshotFSThaw(driver, vm, true);
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,
@ -16739,6 +16835,8 @@ static virDriver qemuDriver = {
.domainMigrateFinish3Params = qemuDomainMigrateFinish3Params, /* 1.1.0 */
.domainMigrateConfirm3Params = qemuDomainMigrateConfirm3Params, /* 1.1.0 */
.connectGetCPUModelNames = qemuConnectGetCPUModelNames, /* 1.1.3 */
.domainFSFreeze = qemuDomainFSFreeze, /* 1.2.5 */
.domainFSThaw = qemuDomainFSThaw, /* 1.2.5 */
};