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-rw-r--r--fs/exec.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/exec.c b/fs/exec.c
index dd19492..db07694 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -708,7 +708,17 @@ static int de_thread(struct task_struct *tsk)
remove_parent(current);
remove_parent(leader);
- switch_exec_pids(leader, current);
+
+ /* Become a process group leader with the old leader's pid.
+ * Note: The old leader also uses thispid until release_task
+ * is called. Odd but simple and correct.
+ */
+ detach_pid(current, PIDTYPE_PID);
+ current->pid = leader->pid;
+ attach_pid(current, PIDTYPE_PID, current->pid);
+ attach_pid(current, PIDTYPE_PGID, current->signal->pgrp);
+ attach_pid(current, PIDTYPE_SID, current->signal->session);
+ list_add_tail(&current->tasks, &init_task.tasks);
current->parent = current->real_parent = leader->real_parent;
leader->parent = leader->real_parent = child_reaper;
@@ -722,8 +732,6 @@ static int de_thread(struct task_struct *tsk)
__ptrace_link(current, parent);
}
- list_del(&current->tasks);
- list_add_tail(&current->tasks, &init_task.tasks);
current->exit_signal = SIGCHLD;
BUG_ON(leader->exit_state != EXIT_ZOMBIE);