[libvirt] [PATCH/RFC] qemu/kvm: allow to hot remove scsi/virtio disks
Daniel Veillard
veillard at redhat.com
Wed Oct 29 14:33:05 UTC 2008
On Thu, Oct 23, 2008 at 06:25:37PM +0200, Guido Günther wrote:
> Hi Daniel,
> On Tue, Oct 21, 2008 at 03:25:25PM +0200, Daniel Veillard wrote:
> [..snip..]
> > Those are just stylistic issues, I can apply the patch with those
> > changed if you wish if you don't have time for a new patch,
> Thanks for your comments. Updated version attached. I basically removed
> the union in favour of a single slotnum variable and cleaned up the
> error messages.
> As Daniel P. pointed out, the situation isn't ideal since we can only
> hotremove disks added during the same session since qemu has no real
> notion of "reidentifying" the disks that were passed on the command
> line, this can hopefully be resolved in the future with a little help
> from qemu.
Oops I had forgotten about that patch !
> Cheers,
[...]
> +static int qemudDomainDetachDevice(virDomainPtr dom,
> + const char *xml) {
> + struct qemud_driver *driver = (struct qemud_driver *)dom->conn->privateData;
> + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid);
> + virDomainDeviceDefPtr dev;
> + int ret = 0;
> +
> + if (!vm) {
> + qemudReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN,
> + "%s", _("no domain with matching uuid"));
> + return -1;
> + }
> +
> + if (!virDomainIsActive(vm)) {
> + qemudReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR,
> + "%s", _("cannot attach device on inactive domain"));
> + return -1;
> + }
> +
> + dev = virDomainDeviceDefParse(dom->conn, vm->def, xml);
> + if (dev == NULL) {
> + return -1;
> + }
Applied, I just had to modify the above function since the
virDomainDeviceDefParse no take the extra driver->caps argument.
Commited, thanks !
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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