-/*
- * This function switches the PIDs if a non-leader thread calls
- * sys_execve() - this must be done without releasing the PID.
- * (which a detach_pid() would eventually do.)
- */
-void switch_exec_pids(task_t *leader, task_t *thread)
-{
- _detach_pid(leader, PIDTYPE_PID);
- _detach_pid(leader, PIDTYPE_TGID);
- _detach_pid(leader, PIDTYPE_PGID);
- _detach_pid(leader, PIDTYPE_SID);
-
- _detach_pid(thread, PIDTYPE_PID);
- _detach_pid(thread, PIDTYPE_TGID);
-
- leader->pid = leader->tgid = thread->pid;
- thread->pid = thread->tgid;
-
- attach_pid(thread, PIDTYPE_PID, thread->pid);
- attach_pid(thread, PIDTYPE_TGID, thread->tgid);
- attach_pid(thread, PIDTYPE_PGID, thread->signal->pgrp);
- attach_pid(thread, PIDTYPE_SID, thread->signal->session);
- list_add_tail(&thread->tasks, &init_task.tasks);
-
- attach_pid(leader, PIDTYPE_PID, leader->pid);
- attach_pid(leader, PIDTYPE_TGID, leader->tgid);
- attach_pid(leader, PIDTYPE_PGID, leader->signal->pgrp);
- attach_pid(leader, PIDTYPE_SID, leader->signal->session);