210 static int task_is_descendant(struct task_struct *parent,  in task_is_descendant()  argument
216 	if (!parent || !child)  in task_is_descendant()
220 	if (!thread_group_leader(parent))  in task_is_descendant()
221 		parent = rcu_dereference(parent->group_leader);  in task_is_descendant()
225 		if (walker == parent) {  in task_is_descendant()
248 	struct task_struct *parent = NULL;  in ptracer_exception_found()  local
258 			parent = relation->tracer;  in ptracer_exception_found()
264 	if (found && (parent == NULL || task_is_descendant(parent, tracer)))  in ptracer_exception_found()
325 int yama_ptrace_traceme(struct task_struct *parent)  in yama_ptrace_traceme()  argument
332 		if (!has_ns_capability(parent, current_user_ns(), CAP_SYS_PTRACE))  in yama_ptrace_traceme()
343 			current->pid, parent->comm, parent->pid);  in yama_ptrace_traceme()