46  * all running rethook handler before calling rethook_free(), you need to
51 	rcu_assign_pointer(rh->handler, NULL);  in rethook_stop()
59  * @rh::data is cleaned if needed (or, the handler can access it after
87 	return (rethook_handler_t)rcu_dereference_check(rh->handler,  in rethook_get_handler()
93  * @data: a data to pass the @handler when hooking the return.
94  * @handler: the return hook callback function, must NOT be NULL
98  * Allocate and initialize a new rethook with @data and @handler.
101  * Note that @handler == NULL means this rethook is going to be freed.
103 struct rethook *rethook_alloc(void *data, rethook_handler_t handler,  in rethook_alloc()  argument
108 	if (!handler || num <= 0 || size < sizeof(struct rethook_node))  in rethook_alloc()
116 	rcu_assign_pointer(rh->handler, handler);  in rethook_alloc()
144 	rethook_handler_t handler;  in rethook_recycle()  local
146 	handler = rethook_get_handler(node->rethook);  in rethook_recycle()
147 	if (likely(handler))  in rethook_recycle()
163 	rethook_handler_t handler = rethook_get_handler(rh);  in rethook_try_get()  local
166 	if (unlikely(!handler))  in rethook_try_get()
274 	 * so that stacktrace works from the rethook handler.  in arch_rethook_fixup_return()
284 	rethook_handler_t handler;  in rethook_trampoline_handler()  local
302 	 * Run the handler on the shadow stack. Do not unlink the list here because  in rethook_trampoline_handler()
310 		handler = rethook_get_handler(rhn->rethook);  in rethook_trampoline_handler()
311 		if (handler)  in rethook_trampoline_handler()
312 			handler(rhn, rhn->rethook->data,  in rethook_trampoline_handler()