/* Called by rtnetlink.c:rtnl_unlock() */
void netdev_run_todo(void);
-/**
- * dev_put - release reference to device
- * @dev: network device
- *
- * Release reference to device to allow it to be freed.
- * Try using dev_put_track() instead.
- */
-static inline void dev_put(struct net_device *dev)
+static inline void __dev_put(struct net_device *dev)
{
if (dev) {
#ifdef CONFIG_PCPU_DEV_REFCNT
}
}
-/**
- * dev_hold - get reference to device
- * @dev: network device
- *
- * Hold reference to device to keep it from being freed.
- * Try using dev_hold_track() instead.
- */
-static inline void dev_hold(struct net_device *dev)
+static inline void __dev_hold(struct net_device *dev)
{
if (dev) {
#ifdef CONFIG_PCPU_DEV_REFCNT
}
}
+static inline void __netdev_tracker_alloc(struct net_device *dev,
+ netdevice_tracker *tracker,
+ gfp_t gfp)
+{
+#ifdef CONFIG_NET_DEV_REFCNT_TRACKER
+ ref_tracker_alloc(&dev->refcnt_tracker, tracker, gfp);
+#endif
+}
+
+/* netdev_tracker_alloc() can upgrade a prior untracked reference
+ * taken by dev_get_by_name()/dev_get_by_index() to a tracked one.
+ */
static inline void netdev_tracker_alloc(struct net_device *dev,
netdevice_tracker *tracker, gfp_t gfp)
{
#ifdef CONFIG_NET_DEV_REFCNT_TRACKER
- ref_tracker_alloc(&dev->refcnt_tracker, tracker, gfp);
+ refcount_dec(&dev->refcnt_tracker.no_tracker);
+ __netdev_tracker_alloc(dev, tracker, gfp);
#endif
}
netdevice_tracker *tracker, gfp_t gfp)
{
if (dev) {
- dev_hold(dev);
- netdev_tracker_alloc(dev, tracker, gfp);
+ __dev_hold(dev);
+ __netdev_tracker_alloc(dev, tracker, gfp);
}
}
{
if (dev) {
netdev_tracker_free(dev, tracker);
- dev_put(dev);
+ __dev_put(dev);
}
}
+/**
+ * dev_hold - get reference to device
+ * @dev: network device
+ *
+ * Hold reference to device to keep it from being freed.
+ * Try using dev_hold_track() instead.
+ */
+static inline void dev_hold(struct net_device *dev)
+{
+ dev_hold_track(dev, NULL, GFP_ATOMIC);
+}
+
+/**
+ * dev_put - release reference to device
+ * @dev: network device
+ *
+ * Release reference to device to allow it to be freed.
+ * Try using dev_put_track() instead.
+ */
+static inline void dev_put(struct net_device *dev)
+{
+ dev_put_track(dev, NULL);
+}
+
static inline void dev_replace_track(struct net_device *odev,
struct net_device *ndev,
netdevice_tracker *tracker,
if (odev)
netdev_tracker_free(odev, tracker);
- dev_hold(ndev);
- dev_put(odev);
+ __dev_hold(ndev);
+ __dev_put(odev);
if (ndev)
- netdev_tracker_alloc(ndev, tracker, gfp);
+ __netdev_tracker_alloc(ndev, tracker, gfp);
}
/* Carrier loss detection, dial on demand. The functions netif_carrier_on