[libvirt] [PATCH 2/2] qemu: Use same create/define overwrite logic for migration prepare.
Daniel Veillard
veillard at redhat.com
Fri Nov 6 13:26:04 UTC 2009
On Wed, Nov 04, 2009 at 03:06:59PM -0500, Cole Robinson wrote:
>
> Signed-off-by: Cole Robinson <crobinso at redhat.com>
> ---
> src/qemu/qemu_driver.c | 30 ++++--------------------------
> 1 files changed, 4 insertions(+), 26 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 20621d1..53f7398 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -5978,19 +5978,8 @@ qemudDomainMigratePrepareTunnel(virConnectPtr dconn,
> /* Target domain name, maybe renamed. */
> dname = dname ? dname : def->name;
>
> - /* Ensure the name and UUID don't already exist in an active VM */
> - vm = virDomainFindByUUID(&driver->domains, def->uuid);
> -
> - if (!vm) vm = virDomainFindByName(&driver->domains, dname);
> - if (vm) {
> - if (virDomainObjIsActive(vm)) {
> - qemudReportError(dconn, NULL, NULL, VIR_ERR_OPERATION_FAILED,
> - _("domain with the same name or UUID already exists as '%s'"),
> - vm->def->name);
> - goto cleanup;
> - }
> - virDomainObjUnlock(vm);
> - }
> + if (virDomainObjIsDuplicate(&driver->domains, def, 1) < 0)
> + goto cleanup;
>
> if (!(vm = virDomainAssignDef(dconn,
> driver->caps,
> @@ -6202,19 +6191,8 @@ qemudDomainMigratePrepare2 (virConnectPtr dconn,
> /* Target domain name, maybe renamed. */
> dname = dname ? dname : def->name;
>
> - /* Ensure the name and UUID don't already exist in an active VM */
> - vm = virDomainFindByUUID(&driver->domains, def->uuid);
> -
> - if (!vm) vm = virDomainFindByName(&driver->domains, dname);
> - if (vm) {
> - if (virDomainObjIsActive(vm)) {
> - qemudReportError (dconn, NULL, NULL, VIR_ERR_OPERATION_FAILED,
> - _("domain with the same name or UUID already exists as '%s'"),
> - vm->def->name);
> - goto cleanup;
> - }
> - virDomainObjUnlock(vm);
> - }
> + if (virDomainObjIsDuplicate(&driver->domains, def, 1) < 0)
> + goto cleanup;
>
> if (!(vm = virDomainAssignDef(dconn,
> driver->caps,
Hum, there is a slight change of semantic in that case, if VM migrated
from A to B, then gets renamed on B, if you try to migrate it back to A
that will fail because the uuid match/name mismatch failure will be
raised while this won't be the case with current code, right ?
Maybe it's the right thing to do, but that's a change I think
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel at veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
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