net: ovs: use kfree_rcu instead of rcu_free_{sw_flow_mask_cb,acts_callback}
As we're only doing a kfree() anyway in the RCU callback, we can
simply use kfree_rcu, which does the same job, and remove the
function rcu_free_sw_flow_mask_cb() and rcu_free_acts_callback().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 3ccb92f..4d000ac 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -1176,19 +1176,11 @@
return sfa;
}
-/* RCU callback used by ovs_nla_free_flow_actions. */
-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_nla_free_flow_actions(struct sw_flow_actions *sf_acts)
{
- call_rcu(&sf_acts->rcu, rcu_free_acts_callback);
+ kfree_rcu(sf_acts, rcu);
}
static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa,
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 299ea8b..099a1a9 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -155,13 +155,6 @@
flow_free(flow);
}
-static void rcu_free_sw_flow_mask_cb(struct rcu_head *rcu)
-{
- struct sw_flow_mask *mask = container_of(rcu, struct sw_flow_mask, rcu);
-
- kfree(mask);
-}
-
static void flow_mask_del_ref(struct sw_flow_mask *mask, bool deferred)
{
if (!mask)
@@ -173,7 +166,7 @@
if (!mask->ref_count) {
list_del_rcu(&mask->list);
if (deferred)
- call_rcu(&mask->rcu, rcu_free_sw_flow_mask_cb);
+ kfree_rcu(mask, rcu);
else
kfree(mask);
}