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qemu: Migration job on destination daemon

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Make MIGRATION_IN use the new helper methods.
This commit is contained in:
Jiri Denemark 2011-07-19 02:27:31 +02:00 committed by Eric Blake
parent 9271367067
commit eeb008dbfc
3 changed files with 42 additions and 60 deletions
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2
src/qemu/qemu_domain.c
View File

@ -645,7 +645,7 @@ void qemuDomainSetNamespaceHooks(virCapsPtr caps)
caps->ns.href = qemuDomainDefNamespaceHref;
}
void
static void
qemuDomainObjSaveJob(struct qemud_driver *driver, virDomainObjPtr obj)
{
if (!virDomainObjIsActive(obj)) {

1
src/qemu/qemu_domain.h
View File

@ -187,7 +187,6 @@ int qemuDomainObjEndAsyncJob(struct qemud_driver *driver,
void qemuDomainObjEndNestedJob(struct qemud_driver *driver,
virDomainObjPtr obj);
void qemuDomainObjSaveJob(struct qemud_driver *driver, virDomainObjPtr obj);
void qemuDomainObjSetJobPhase(struct qemud_driver *driver,
virDomainObjPtr obj,
int phase);

99
src/qemu/qemu_migration.c
View File

@ -1130,9 +1130,9 @@ qemuMigrationPrepareAny(struct qemud_driver *driver,
QEMU_MIGRATION_COOKIE_LOCKSTATE)))
goto cleanup;
if (qemuDomainObjBeginAsyncJobWithDriver(driver, vm,
QEMU_ASYNC_JOB_MIGRATION_IN) < 0)
if (qemuMigrationJobStart(driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN) < 0)
goto cleanup;
qemuMigrationJobSetPhase(driver, vm, QEMU_MIGRATION_PHASE_PREPARE);
/* Domain starts inactive, even if the domain XML had an id field. */
vm->def->id = -1;
@ -1190,29 +1190,20 @@ qemuMigrationPrepareAny(struct qemud_driver *driver,
event = virDomainEventNewFromObj(vm,
VIR_DOMAIN_EVENT_STARTED,
VIR_DOMAIN_EVENT_STARTED_MIGRATED);
ret = 0;
endjob:
if (qemuDomainObjEndAsyncJob(driver, vm) == 0) {
vm = NULL;
} else if (!vm->persistent && !virDomainObjIsActive(vm)) {
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
/* We set a fake job active which is held across
* API calls until the finish() call. This prevents
* any other APIs being invoked while incoming
* migration is taking place
/* We keep the job active across API calls until the finish() call.
* This prevents any other APIs being invoked while incoming
* migration is taking place.
*/
if (vm &&
virDomainObjIsActive(vm)) {
priv->job.asyncJob = QEMU_ASYNC_JOB_MIGRATION_IN;
qemuDomainObjSaveJob(driver, vm);
priv->job.info.type = VIR_DOMAIN_JOB_UNBOUNDED;
priv->job.start = now;
if (qemuMigrationJobContinue(vm) == 0) {
vm = NULL;
qemuReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("domain disappeared"));
goto cleanup;
}
ret = 0;
cleanup:
virDomainDefFree(def);
VIR_FORCE_CLOSE(dataFD[0]);
@ -1223,6 +1214,15 @@ cleanup:
qemuDomainEventQueue(driver, event);
qemuMigrationCookieFree(mig);
return ret;
endjob:
if (qemuMigrationJobFinish(driver, vm) == 0) {
vm = NULL;
} else if (!vm->persistent) {
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
goto cleanup;
}
@ -2403,27 +2403,23 @@ qemuMigrationFinish(struct qemud_driver *driver,
virDomainPtr dom = NULL;
virDomainEventPtr event = NULL;
int newVM = 1;
qemuDomainObjPrivatePtr priv = NULL;
qemuMigrationCookiePtr mig = NULL;
virErrorPtr orig_err = NULL;
VIR_DEBUG("driver=%p, dconn=%p, vm=%p, cookiein=%s, cookieinlen=%d, "
"cookieout=%p, cookieoutlen=%p, flags=%lx, retcode=%d",
driver, dconn, vm, NULLSTR(cookiein), cookieinlen,
cookieout, cookieoutlen, flags, retcode);
virErrorPtr orig_err = NULL;
priv = vm->privateData;
if (priv->job.asyncJob != QEMU_ASYNC_JOB_MIGRATION_IN) {
qemuReportError(VIR_ERR_NO_DOMAIN,
_("domain '%s' is not processing incoming migration"), vm->def->name);
if (!qemuMigrationJobIsActive(vm, QEMU_ASYNC_JOB_MIGRATION_IN))
goto cleanup;
}
qemuDomainObjDiscardAsyncJob(driver, vm);
qemuMigrationJobStartPhase(driver, vm,
v3proto ? QEMU_MIGRATION_PHASE_FINISH3
: QEMU_MIGRATION_PHASE_FINISH2);
if (!(mig = qemuMigrationEatCookie(driver, vm, cookiein, cookieinlen, 0)))
goto cleanup;
if (qemuDomainObjBeginJobWithDriver(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
goto endjob;
/* Did the migration go as planned? If yes, return the domain
* object, but if no, clean up the empty qemu process.
@ -2454,21 +2450,14 @@ qemuMigrationFinish(struct qemud_driver *driver,
*/
/*
* In v3 protocol, the source VM is still available to
* restart during confirm() step, so we kill it off
* now.
* In v2 protocol, the source is dead, so we leave
* target in paused state, in case admin can fix
* things up
* However, in v3 protocol, the source VM is still available
* to restart during confirm() step, so we kill it off now.
*/
if (v3proto) {
qemuProcessStop(driver, vm, 1, VIR_DOMAIN_SHUTOFF_FAILED);
virDomainAuditStop(vm, "failed");
if (newVM) {
if (qemuDomainObjEndJob(driver, vm) > 0)
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
if (newVM)
vm->persistent = 0;
}
goto endjob;
}
@ -2481,7 +2470,6 @@ qemuMigrationFinish(struct qemud_driver *driver,
if (event)
qemuDomainEventQueue(driver, event);
event = NULL;
}
if (!(flags & VIR_MIGRATE_PAUSED)) {
@ -2513,11 +2501,6 @@ qemuMigrationFinish(struct qemud_driver *driver,
event = virDomainEventNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_FAILED);
if (!vm->persistent) {
if (qemuDomainObjEndJob(driver, vm) > 0)
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
}
goto endjob;
}
@ -2549,20 +2532,20 @@ qemuMigrationFinish(struct qemud_driver *driver,
event = virDomainEventNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_FAILED);
if (!vm->persistent) {
if (qemuDomainObjEndJob(driver, vm) > 0)
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
}
if (qemuMigrationBakeCookie(mig, driver, vm, cookieout, cookieoutlen, 0) < 0)
VIR_WARN("Unable to encode migration cookie");
endjob:
if (vm &&
qemuDomainObjEndJob(driver, vm) == 0)
vm = NULL;
if (vm) {
if (qemuMigrationJobFinish(driver, vm) == 0) {
vm = NULL;
} else if (!vm->persistent && !virDomainObjIsActive(vm)) {
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
}
cleanup:
if (vm)