diff mbox series

[2/3] pidfd: kill the no longer needed do_notify_pidfd() in de_thread()

Message ID 20240202131248.GA26022@redhat.com
State New
Headers
Series pidfd_poll: report POLLHUP when pid_task() == NULL |

Commit Message

Oleg Nesterov Feb. 2, 2024, 1:12 p.m. UTC 
  Now that __change_pid() does wake_up_all(&pid->wait_pidfd) we can kill
do_notify_pidfd(leader) in de_thread(), it calls release_task(leader)
right after that and this implies detach_pid(leader, PIDTYPE_PID).

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 fs/exec.c | 5 -----
 1 file changed, 5 deletions(-)
diff mbox series

Patch

diff --git a/fs/exec.c b/fs/exec.c
index 0fd7e668c477..acd466f92998 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1143,11 +1143,6 @@  static int de_thread(struct task_struct *tsk)
 
 		BUG_ON(leader->exit_state != EXIT_ZOMBIE);
 		leader->exit_state = EXIT_DEAD;
-		/*
-		 * leader and tsk exhanged their pids, the old pid dies,
-		 * wake up the PIDFD_THREAD waiters.
-		 */
-		do_notify_pidfd(leader);
 		/*
 		 * We are going to release_task()->ptrace_unlink() silently,
 		 * the tracer can sleep in do_wait(). EXIT_DEAD guarantees