diff options
Diffstat (limited to 'net/core/dev.c')
-rw-r--r-- | net/core/dev.c | 63 |
1 files changed, 45 insertions, 18 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index c2456b3667fe..63abb0463c24 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -758,29 +758,43 @@ struct net_device *dev_get_by_name_rcu(struct net *net, const char *name) } EXPORT_SYMBOL(dev_get_by_name_rcu); +/* Deprecated for new users, call netdev_get_by_name() instead */ +struct net_device *dev_get_by_name(struct net *net, const char *name) +{ + struct net_device *dev; + + rcu_read_lock(); + dev = dev_get_by_name_rcu(net, name); + dev_hold(dev); + rcu_read_unlock(); + return dev; +} +EXPORT_SYMBOL(dev_get_by_name); + /** - * dev_get_by_name - find a device by its name + * netdev_get_by_name() - find a device by its name * @net: the applicable net namespace * @name: name to find + * @tracker: tracking object for the acquired reference + * @gfp: allocation flags for the tracker * * Find an interface by name. This can be called from any * context and does its own locking. The returned handle has - * the usage count incremented and the caller must use dev_put() to + * the usage count incremented and the caller must use netdev_put() to * release it when it is no longer needed. %NULL is returned if no * matching device is found. */ - -struct net_device *dev_get_by_name(struct net *net, const char *name) +struct net_device *netdev_get_by_name(struct net *net, const char *name, + netdevice_tracker *tracker, gfp_t gfp) { struct net_device *dev; - rcu_read_lock(); - dev = dev_get_by_name_rcu(net, name); - dev_hold(dev); - rcu_read_unlock(); + dev = dev_get_by_name(net, name); + if (dev) + netdev_tracker_alloc(dev, tracker, gfp); return dev; } -EXPORT_SYMBOL(dev_get_by_name); +EXPORT_SYMBOL(netdev_get_by_name); /** * __dev_get_by_index - find a device by its ifindex @@ -831,29 +845,42 @@ struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex) } EXPORT_SYMBOL(dev_get_by_index_rcu); +/* Deprecated for new users, call netdev_get_by_index() instead */ +struct net_device *dev_get_by_index(struct net *net, int ifindex) +{ + struct net_device *dev; + + rcu_read_lock(); + dev = dev_get_by_index_rcu(net, ifindex); + dev_hold(dev); + rcu_read_unlock(); + return dev; +} +EXPORT_SYMBOL(dev_get_by_index); /** - * dev_get_by_index - find a device by its ifindex + * netdev_get_by_index() - find a device by its ifindex * @net: the applicable net namespace * @ifindex: index of device + * @tracker: tracking object for the acquired reference + * @gfp: allocation flags for the tracker * * Search for an interface by index. Returns NULL if the device * is not found or a pointer to the device. The device returned has * had a reference added and the pointer is safe until the user calls - * dev_put to indicate they have finished with it. + * netdev_put() to indicate they have finished with it. */ - -struct net_device *dev_get_by_index(struct net *net, int ifindex) +struct net_device *netdev_get_by_index(struct net *net, int ifindex, + netdevice_tracker *tracker, gfp_t gfp) { struct net_device *dev; - rcu_read_lock(); - dev = dev_get_by_index_rcu(net, ifindex); - dev_hold(dev); - rcu_read_unlock(); + dev = dev_get_by_index(net, ifindex); + if (dev) + netdev_tracker_alloc(dev, tracker, gfp); return dev; } -EXPORT_SYMBOL(dev_get_by_index); +EXPORT_SYMBOL(netdev_get_by_index); /** * dev_get_by_napi_id - find a device by napi_id |