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| author | Gao Feng <fgao@ikuai8.com> | 2016-12-07 08:44:47 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-07 13:21:21 -0500 |
| commit | 48140a210b450db229cc9dd927480f65537dc7eb (patch) | |
| tree | 0078eb96dc44fa67f8cad6e5ebf5678991820352 /drivers/net/ipvlan | |
| parent | ef0915cacd04c9e35be5f9d62a4e4b5b4b9bcfd1 (diff) | |
| download | linux-48140a210b450db229cc9dd927480f65537dc7eb.tar.gz linux-48140a210b450db229cc9dd927480f65537dc7eb.tar.bz2 linux-48140a210b450db229cc9dd927480f65537dc7eb.zip | |
driver: ipvlan: Free ipvl_port directly with kfree instead of kfree_rcu
There are two functions which would free the ipvl_port now. The first
is ipvlan_port_create. It frees the ipvl_port in the error handler,
so it could kfree it directly. The second is ipvlan_port_destroy. It
invokes netdev_rx_handler_unregister which enforces one grace period
by synchronize_net firstly, so it also could kfree the ipvl_port
directly and safely.
So it is unnecessary to use kfree_rcu to free ipvl_port.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ipvlan')
| -rw-r--r-- | drivers/net/ipvlan/ipvlan.h | 1 | ||||
| -rw-r--r-- | drivers/net/ipvlan/ipvlan_main.c | 4 |
2 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h index 05a62d2216c5..031093e1c25f 100644 --- a/drivers/net/ipvlan/ipvlan.h +++ b/drivers/net/ipvlan/ipvlan.h @@ -97,7 +97,6 @@ struct ipvl_port { struct work_struct wq; struct sk_buff_head backlog; int count; - struct rcu_head rcu; }; static inline struct ipvl_port *ipvlan_port_get_rcu(const struct net_device *d) diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index 5430460167b5..ffe8994e64fc 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -128,7 +128,7 @@ static int ipvlan_port_create(struct net_device *dev) return 0; err: - kfree_rcu(port, rcu); + kfree(port); return err; } @@ -145,7 +145,7 @@ static void ipvlan_port_destroy(struct net_device *dev) netdev_rx_handler_unregister(dev); cancel_work_sync(&port->wq); __skb_queue_purge(&port->backlog); - kfree_rcu(port, rcu); + kfree(port); } #define IPVLAN_FEATURES \ |