net/ipv6/ioam6.c

23 static void ioam6_ns_release(struct ioam6_namespace *ns)
25 	kfree_rcu(ns, rcu);
35 	struct ioam6_namespace *ns = (struct ioam6_namespace *)ptr;
37 	if (ns)
38 		ioam6_ns_release(ns);
51 	const struct ioam6_namespace *ns = obj;
53 	return (ns->id != *(__be16 *)arg->key);
110 	struct ioam6_namespace *ns;
124 	ns = rhashtable_lookup_fast(&nsdata->namespaces, &id, rht_ns_params);
125 	if (ns) {
130 	ns = kzalloc(sizeof(*ns), GFP_KERNEL);
131 	if (!ns) {
136 	ns->id = id;
148 	ns->data = cpu_to_be32(data32);
149 	ns->data_wide = cpu_to_be64(data64);
151 	err = rhashtable_lookup_insert_fast(&nsdata->namespaces, &ns->head,
154 		kfree(ns);
164 	struct ioam6_namespace *ns;
177 	ns = rhashtable_lookup_fast(&nsdata->namespaces, &id, rht_ns_params);
178 	if (!ns) {
183 	sc = rcu_dereference_protected(ns->schema,
186 	err = rhashtable_remove_fast(&nsdata->namespaces, &ns->head,
192 		rcu_assign_pointer(sc->ns, NULL);
194 	ioam6_ns_release(ns);
201 static int __ioam6_genl_dumpns_element(struct ioam6_namespace *ns,
217 	data32 = be32_to_cpu(ns->data);
218 	data64 = be64_to_cpu(ns->data_wide);
220 	if (nla_put_u16(skb, IOAM6_ATTR_NS_ID, be16_to_cpu(ns->id)) ||
230 	sc = rcu_dereference(ns->schema);
277 	struct ioam6_namespace *ns;
284 		ns = rhashtable_walk_next(iter);
286 		if (IS_ERR(ns)) {
287 			if (PTR_ERR(ns) == -EAGAIN)
289 			err = PTR_ERR(ns);
291 		} else if (!ns) {
295 		err = __ioam6_genl_dumpns_element(ns,
363 	struct ioam6_namespace *ns;
382 	ns = rcu_dereference_protected(sc->ns, lockdep_is_held(&nsdata->lock));
389 	if (ns)
390 		rcu_assign_pointer(ns->schema, NULL);
403 	struct ioam6_namespace *ns;
416 	ns = rcu_dereference(sc->ns);
417 	if (ns && nla_put_u16(skb, IOAM6_ATTR_NS_ID, be16_to_cpu(ns->id))) {
500 	struct ioam6_namespace *ns, *ns_ref;
517 	ns = rhashtable_lookup_fast(&nsdata->namespaces, &ns_id, rht_ns_params);
518 	if (!ns) {
535 	sc_ref = rcu_dereference_protected(ns->schema,
538 		rcu_assign_pointer(sc_ref->ns, NULL);
539 	rcu_assign_pointer(ns->schema, sc);
542 		ns_ref = rcu_dereference_protected(sc->ns,
546 		rcu_assign_pointer(sc->ns, ns);
698 				    struct ioam6_namespace *ns,
780 		*(__be32 *)data = ns->data;
841 		*(__be64 *)data = ns->data_wide;
926 			   struct ioam6_namespace *ns,
942 	sc = rcu_dereference(ns->schema);
958 	__ioam6_fill_trace_data(skb, ns, trace, sc, sclen, is_input);