mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-08-27 11:01:19 +00:00
qemu: hotplug: Extract code for unplugging fdsets
The code unplugging the fdset for a 'vdpa' network device can be later reused. Extract it into 'qemuHotplugRemoveFDSet'. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
parent
bfb79de3d3
commit
a4449fb158
@ -137,6 +137,44 @@ qemuDomainDeleteDevice(virDomainObj *vm,
|
|||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* qemuHotplugRemoveFDSet:
|
||||||
|
* @mon: monitor object
|
||||||
|
* @fdname: the 'opaque' string used as a name for the FD
|
||||||
|
*
|
||||||
|
* Looks up the 'fdset' by looking for a fd inside one of the fdsets which
|
||||||
|
* has the opaque string set to @fdname. Removes the whole fdset which contains
|
||||||
|
* the fd.
|
||||||
|
*
|
||||||
|
* Errors are logged, but this is a best-effort hot-unplug cleanup helper so it's
|
||||||
|
* pointless to return a value.
|
||||||
|
*/
|
||||||
|
static void
|
||||||
|
qemuHotplugRemoveFDSet(qemuMonitor *mon,
|
||||||
|
const char *fdname)
|
||||||
|
{
|
||||||
|
g_autoptr(qemuMonitorFdsets) fdsets = NULL;
|
||||||
|
size_t i;
|
||||||
|
|
||||||
|
if (qemuMonitorQueryFdsets(mon, &fdsets) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
for (i = 0; i < fdsets->nfdsets; i++) {
|
||||||
|
qemuMonitorFdsetInfo *set = &fdsets->fdsets[i];
|
||||||
|
size_t j;
|
||||||
|
|
||||||
|
for (j = 0; j < set->nfds; j++) {
|
||||||
|
qemuMonitorFdsetFdInfo *fdinfo = &set->fds[j];
|
||||||
|
|
||||||
|
if (STREQ_NULLABLE(fdinfo->opaque, fdname)) {
|
||||||
|
ignore_value(qemuMonitorRemoveFdset(mon, set->id));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
static int
|
static int
|
||||||
qemuDomainDetachZPCIDevice(qemuMonitor *mon,
|
qemuDomainDetachZPCIDevice(qemuMonitor *mon,
|
||||||
virDomainDeviceInfo *info)
|
virDomainDeviceInfo *info)
|
||||||
@ -4761,38 +4799,9 @@ qemuDomainRemoveNetDevice(virQEMUDriver *driver,
|
|||||||
*/
|
*/
|
||||||
}
|
}
|
||||||
} else if (actualType == VIR_DOMAIN_NET_TYPE_VDPA) {
|
} else if (actualType == VIR_DOMAIN_NET_TYPE_VDPA) {
|
||||||
int vdpafdset = -1;
|
qemuHotplugRemoveFDSet(priv->mon, net->data.vdpa.devicepath);
|
||||||
g_autoptr(qemuMonitorFdsets) fdsets = NULL;
|
|
||||||
|
|
||||||
/* query qemu for which fdset is associated with the fd that we passed
|
|
||||||
* to qemu via 'add-fd' for this vdpa device. If we don't remove the
|
|
||||||
* fd, qemu will keep it open */
|
|
||||||
if (qemuMonitorQueryFdsets(priv->mon, &fdsets) == 0) {
|
|
||||||
for (i = 0; i < fdsets->nfdsets && vdpafdset < 0; i++) {
|
|
||||||
size_t j;
|
|
||||||
qemuMonitorFdsetInfo *set = &fdsets->fdsets[i];
|
|
||||||
|
|
||||||
for (j = 0; j < set->nfds; j++) {
|
|
||||||
qemuMonitorFdsetFdInfo *fdinfo = &set->fds[j];
|
|
||||||
if (STREQ_NULLABLE(fdinfo->opaque, net->data.vdpa.devicepath)) {
|
|
||||||
vdpafdset = set->id;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (vdpafdset < 0) {
|
|
||||||
VIR_WARN("Cannot determine fdset for vdpa device");
|
|
||||||
} else {
|
|
||||||
if (qemuMonitorRemoveFdset(priv->mon, vdpafdset) < 0) {
|
|
||||||
/* if it fails, there's not much we can do... just carry on */
|
|
||||||
VIR_WARN("failed to close vdpa device");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
qemuDomainObjExitMonitor(driver, vm);
|
qemuDomainObjExitMonitor(driver, vm);
|
||||||
|
|
||||||
if (QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp)
|
if (QEMU_DOMAIN_NETWORK_PRIVATE(net)->slirp)
|
||||||
|
Loading…
Reference in New Issue
Block a user