11:31 p.m.
To accomodate re-use of this functionality in a following patch, split
out the processing of an individual mdev definition into a separate
function.
---
src/node_device/node_device_driver.c | 103 +++++++++++++++------------
1 file changed, 57 insertions(+), 46 deletions(-)
diff --git a/src/node_device/node_device_driver.c b/src/node_device/node_device_driver.c
index e702b30e54..af7d59809c 100644
--- a/src/node_device/node_device_driver.c
+++ b/src/node_device/node_device_driver.c
@@ -1505,6 +1505,60 @@ removeMissingPersistentMdevs(virNodeDeviceObjPtr obj,
}
+/* takes ownership of @def and potentially frees it. @def should not be used
+ * after returning from this function */
+static int
+nodeDeviceUpdateMediatedDevice(virNodeDeviceDefPtr def)
+{
+ virNodeDeviceObjPtr obj;
+ virObjectEventPtr event;
+ bool defined = false;
+ g_autoptr(virNodeDeviceDef) owned = def;
+ g_autofree char *name = g_strdup(owned->name);
+
+ owned->driver = g_strdup("vfio_mdev");
+
+ if (!(obj = virNodeDeviceObjListFindByName(driver->devs, owned->name))) {
+ virNodeDeviceDefPtr d = g_steal_pointer(&owned);
+ if (!(obj = virNodeDeviceObjListAssignDef(driver->devs, d))) {
+ virNodeDeviceDefFree(d);
+ return -1;
+ }
+ } else {
+ bool changed;
+ virNodeDeviceDefPtr olddef = virNodeDeviceObjGetDef(obj);
+
+ defined = virNodeDeviceObjIsPersistent(obj);
+ /* Active devices contain some additional information (e.g. sysfs
+ * path) that is not provided by mdevctl, so re-use the existing
+ * definition and copy over new mdev data */
+ changed = nodeDeviceDefCopyFromMdevctl(olddef, owned);
+
+ if (defined && !changed) {
+ /* if this device was already defined and the definition
+ * hasn't changed, there's nothing to do for this device */
+ virNodeDeviceObjEndAPI(&obj);
+ return 0;
+ }
+ }
+
+ /* all devices returned by virMdevctlListDefined() are persistent */
+ virNodeDeviceObjSetPersistent(obj, true);
+
+ if (!defined)
+ event = virNodeDeviceEventLifecycleNew(name,
+ VIR_NODE_DEVICE_EVENT_DEFINED,
+ 0);
+ else
+ event = virNodeDeviceEventUpdateNew(name);
+
+ virNodeDeviceObjEndAPI(&obj);
+ virObjectEventStateQueue(driver->nodeDeviceEventState, event);
+
+ return 0;
+}
+
+
int
nodeDeviceUpdateMediatedDevices(void)
{
@@ -1524,52 +1578,9 @@ nodeDeviceUpdateMediatedDevices(void)
virNodeDeviceObjListForEachRemove(driver->devs,
removeMissingPersistentMdevs, &data);
- for (i = 0; i < data.ndefs; i++) {
- virNodeDeviceObjPtr obj;
- virObjectEventPtr event;
- g_autoptr(virNodeDeviceDef) def = defs[i];
- g_autofree char *name = g_strdup(def->name);
- bool defined = false;
-
- def->driver = g_strdup("vfio_mdev");
-
- if (!(obj = virNodeDeviceObjListFindByName(driver->devs, def->name))) {
- virNodeDeviceDefPtr d = g_steal_pointer(&def);
- if (!(obj = virNodeDeviceObjListAssignDef(driver->devs, d))) {
- virNodeDeviceDefFree(d);
- return -1;
- }
- } else {
- bool changed;
- virNodeDeviceDefPtr olddef = virNodeDeviceObjGetDef(obj);
-
- defined = virNodeDeviceObjIsPersistent(obj);
- /* Active devices contain some additional information (e.g. sysfs
- * path) that is not provided by mdevctl, so re-use the existing
- * definition and copy over new mdev data */
- changed = nodeDeviceDefCopyFromMdevctl(olddef, def);
-
- if (defined && !changed) {
- /* if this device was already defined and the definition
- * hasn't changed, there's nothing to do for this device */
- virNodeDeviceObjEndAPI(&obj);
- continue;
- }
- }
-
- /* all devices returned by virMdevctlListDefined() are persistent */
- virNodeDeviceObjSetPersistent(obj, true);
-
- if (!defined)
- event = virNodeDeviceEventLifecycleNew(name,
- VIR_NODE_DEVICE_EVENT_DEFINED,
- 0);
- else
- event = virNodeDeviceEventUpdateNew(name);
-
- virNodeDeviceObjEndAPI(&obj);
- virObjectEventStateQueue(driver->nodeDeviceEventState, event);
- }
+ for (i = 0; i < data.ndefs; i++)
+ if (nodeDeviceUpdateMediatedDevice(defs[i]) < 0)
+ return -1;
return 0;
}
--
2.26.2