38 	struct rethook *rh = container_of(head, struct rethook, rcu);  in rethook_free_rcu()  local
43 	node = rh->pool.head;  in rethook_free_rcu()
52 	if (refcount_sub_and_test(count, &rh->ref))  in rethook_free_rcu()
53 		kfree(rh);  in rethook_free_rcu()
64 void rethook_stop(struct rethook *rh)  in rethook_stop()  argument
66 	rcu_assign_pointer(rh->handler, NULL);  in rethook_stop()
79 void rethook_free(struct rethook *rh)  in rethook_free()  argument
81 	rethook_stop(rh);  in rethook_free()
83 	call_rcu(&rh->rcu, rethook_free_rcu);  in rethook_free()
86 static inline rethook_handler_t rethook_get_handler(struct rethook *rh)  in rethook_get_handler()  argument
88 	return (rethook_handler_t)rcu_dereference_check(rh->handler,  in rethook_get_handler()
103 	struct rethook *rh = kzalloc(sizeof(struct rethook), GFP_KERNEL);  in rethook_alloc()  local
105 	if (!rh || !handler) {  in rethook_alloc()
106 		kfree(rh);  in rethook_alloc()
110 	rh->data = data;  in rethook_alloc()
111 	rcu_assign_pointer(rh->handler, handler);  in rethook_alloc()
112 	rh->pool.head = NULL;  in rethook_alloc()
113 	refcount_set(&rh->ref, 1);  in rethook_alloc()
115 	return rh;  in rethook_alloc()
126 void rethook_add_node(struct rethook *rh, struct rethook_node *node)  in rethook_add_node()  argument
128 	node->rethook = rh;  in rethook_add_node()
129 	freelist_add(&node->freelist, &rh->pool);  in rethook_add_node()
130 	refcount_inc(&rh->ref);  in rethook_add_node()
168 struct rethook_node *rethook_try_get(struct rethook *rh)  in rethook_try_get()  argument
170 	rethook_handler_t handler = rethook_get_handler(rh);  in rethook_try_get()
186 	fn = freelist_try_get(&rh->pool);  in rethook_try_get()
218 	struct rethook_node *rh = NULL;  in __rethook_find_ret_addr()  local
227 		rh = container_of(node, struct rethook_node, llist);  in __rethook_find_ret_addr()
228 		if (rh->ret_addr != (unsigned long)arch_rethook_trampoline) {  in __rethook_find_ret_addr()
230 			return rh->ret_addr;  in __rethook_find_ret_addr()