static void tcf_sample_cleanup(struct tc_action *a)
{
struct tcf_sample *s = to_sample(a);
struct psample_group *psample_group;
psample_group = rtnl_dereference(s->psample_group);
RCU_INIT_POINTER(s->psample_group, NULL);
psample_group_put(psample_group);
}
static void tcf_sample_cleanup_rcu(struct rcu_head *rcu)
{
struct tcf_sample *s = container_of(rcu, struct tcf_sample, rcu);
struct psample_group *psample_group;
psample_group = rcu_dereference_protected(s->psample_group, 1);
RCU_INIT_POINTER(s->psample_group, NULL);
psample_group_put(psample_group);
}
static void tcf_sample_cleanup(struct tc_action *a)
{
struct tcf_sample *s = to_sample(a);
struct psample_group *psample_group;
/* last reference to action, no need to lock */
psample_group = rcu_dereference_protected(s->psample_group, 1);
RCU_INIT_POINTER(s->psample_group, NULL);
if (psample_group)
psample_group_put(psample_group);
}