[libvirt] [PATCH v2 4/5] qemu: Implement virDomainFSFreeze and virDomainFSThaw

Use qemuDomainSnapshotFSFreeze() and qemuDomainSnapshotFSFreeze() which are already implemented for snapshot quiescing. Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama(a)hds.com&gt; --- src/qemu/qemu_driver.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 8109e46..29202a3 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -16598,6 +16598,82 @@ qemuConnectGetCPUModelNames(virConnectPtr conn, } +static int +qemuDomainFSFreeze(virDomainPtr dom, + unsigned int flags) +{ + virQEMUDriverPtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + + virCheckFlags(0, -1); + + 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(vm); + +endjob: + if (!qemuDomainObjEndJob(driver, vm)) + vm = NULL; + +cleanup: + if (vm) + virObjectUnlock(vm); + return ret; +} + + +static int +qemuDomainFSThaw(virDomainPtr dom, + unsigned int flags) +{ + virQEMUDriverPtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + + virCheckFlags(0, -1); + + 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(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, @@ -16785,6 +16861,8 @@ static virDriver qemuDriver = { .domainMigrateFinish3Params = qemuDomainMigrateFinish3Params, /* 1.1.0 */ .domainMigrateConfirm3Params = qemuDomainMigrateConfirm3Params, /* 1.1.0 */ .connectGetCPUModelNames = qemuConnectGetCPUModelNames, /* 1.1.3 */ + .domainFSFreeze = qemuDomainFSFreeze, /* 1.2.3 */ + .domainFSThaw = qemuDomainFSThaw, /* 1.2.3 */ };