[libvirt] [PATCH 4/4] qemu: Use ShutdownVMDaemon for all startup cleanup paths
Eric Blake
eblake at redhat.com
Tue May 18 16:29:42 UTC 2010
On 05/17/2010 11:17 AM, Cole Robinson wrote:
> The current cleanup: in StartVMDaemon path is a poor duplication.
> qemuShutdownVMDaemon can handle teardown for inactive VMs, so let's use it.
>
> Signed-off-by: Cole Robinson <crobinso at redhat.com>
> ---
> src/qemu/qemu_driver.c | 18 +-----------------
> 1 files changed, 1 insertions(+), 17 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index d2f1a36..114917d 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -3569,23 +3569,7 @@ static int qemudStartVMDaemon(virConnectPtr conn,
> return 0;
>
> cleanup:
> - /* We jump here if we failed to start the VM for any reason
> - * XXX investigate if we can kill this block and safely call
> - * qemudShutdownVMDaemon even though no PID is running */
> - qemuDomainReAttachHostDevices(driver, vm->def);
> -
> - if (driver->securityDriver &&
> - driver->securityDriver->domainRestoreSecurityAllLabel)
> - driver->securityDriver->domainRestoreSecurityAllLabel(vm, 0);
> - if (driver->securityDriver &&
> - driver->securityDriver->domainReleaseSecurityLabel)
> - driver->securityDriver->domainReleaseSecurityLabel(vm);
> - qemuRemoveCgroup(driver, vm, 1);
> - if (logfile != -1)
> - close(logfile);
> - vm->def->id = -1;
> - return -1;
> -
> + /* We jump here if we failed to start the VM for any reason */
> abort:
> /* We jump here if we failed to initialize the now running VM
> * killing it off and pretend we never started it */
Agree with the proposed change being safe, but it is incomplete. Now
that cleanup: has no code, but falls through immediately to abort:, I'd
rather see these merged into one label. Probably cleanup: is the better
name, which means changing all the 'goto abort;'.
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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