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libxl: Add a helper function to unprepare network devices

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Move network device cleanup code from libxlDomainCleanup to a helper
function for use in a subsequent patch.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jim Fehlig 2021-02-17 15:24:58 -07:00
parent 572d161f10
commit caed469ef5
1 changed files with 28 additions and 22 deletions
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50
src/libxl/libxl_domain.c
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@ -826,6 +826,33 @@ libxlDomainSaveImageOpen(libxlDriverPrivate *driver,
return -1;
}
static void
libxlNetworkUnwindDevices(virDomainDef *def)
{
if (def->nnets) {
size_t i;
for (i = 0; i < def->nnets; i++) {
virDomainNetDef *net = def->nets[i];
if (net->ifname &&
STRPREFIX(net->ifname, LIBXL_GENERATED_PREFIX_XEN))
VIR_FREE(net->ifname);
/* cleanup actual device */
virDomainNetRemoveHostdev(def, net);
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
g_autoptr(virConnect) conn = virGetConnectNetwork();
if (conn)
virDomainNetReleaseActualDevice(conn, def, net);
else
VIR_WARN("Unable to release network device '%s'", NULLSTR(net->ifname));
}
}
}
}
/*
* Internal domain destroy function.
*
@ -870,7 +897,6 @@ libxlDomainCleanup(libxlDriverPrivate *driver,
char *file;
virHostdevManager *hostdev_mgr = driver->hostdevMgr;
unsigned int hostdev_flags = VIR_HOSTDEV_SP_PCI;
g_autoptr(virConnect) conn = NULL;
VIR_DEBUG("Cleaning up domain with id '%d' and name '%s'",
vm->def->id, vm->def->name);
@ -923,29 +949,9 @@ libxlDomainCleanup(libxlDriverPrivate *driver,
}
}
if ((vm->def->nnets)) {
size_t i;
for (i = 0; i < vm->def->nnets; i++) {
virDomainNetDef *net = vm->def->nets[i];
if (net->ifname &&
STRPREFIX(net->ifname, LIBXL_GENERATED_PREFIX_XEN))
VIR_FREE(net->ifname);
/* cleanup actual device */
virDomainNetRemoveHostdev(vm->def, net);
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
if (conn || (conn = virGetConnectNetwork()))
virDomainNetReleaseActualDevice(conn, vm->def, net);
else
VIR_WARN("Unable to release network device '%s'", NULLSTR(net->ifname));
}
}
}
libxlNetworkUnwindDevices(vm->def);
file = g_strdup_printf("%s/%s.xml", cfg->stateDir, vm->def->name);
if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR)
VIR_DEBUG("Failed to remove domain XML for %s", vm->def->name);
VIR_FREE(file);