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Commit 80f0fd8a authored by Wei Yongjun's avatar Wei Yongjun Committed by David S. Miller
Browse files

openvswitch: using kfree_rcu() to simplify the code 

The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/

)

Signed-off-by: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: default avatarJesse Gross <jesse@nicira.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fc61b928

net/openvswitch/flow.c

+1 −9
Original line number Diff line number Diff line
@@ -427,19 +427,11 @@ void ovs_flow_deferred_free(struct sw_flow *flow) 
	call_rcu(&flow->rcu, rcu_free_flow_callback);

}



/* RCU callback used by ovs_flow_deferred_free_acts. */

static void rcu_free_acts_callback(struct rcu_head *rcu)

{

	struct sw_flow_actions *sf_acts = container_of(rcu,

			struct sw_flow_actions, rcu);

	kfree(sf_acts);

}



/* Schedules 'sf_acts' to be freed after the next RCU grace period.

 * The caller must hold rcu_read_lock for this to be sensible. */

void ovs_flow_deferred_free_acts(struct sw_flow_actions *sf_acts)

{

	call_rcu(&sf_acts->rcu, rcu_free_acts_callback);

	kfree_rcu(sf_acts, rcu);

}



static int parse_vlan(struct sk_buff *skb, struct sw_flow_key *key)