Merge tag 'misc.2024.09.14a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull core dump update from Paul McKenney:
 "Sleep at TASK_IDLE when waiting for application core dump

  This causes the coredump_task_exit() function to sleep at TASK_IDLE,
  thus preventing task-blocked splats in case of large core dumps to
  slow devices"

* tag 'misc.2024.09.14a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  exit: Sleep at TASK_IDLE when waiting for application core dump

kernel/exit.c

@@ -428,7 +428,7 @@ static void coredump_task_exit(struct task_struct *tsk)
 			complete(&core_state->startup);
 
 		for (;;) {
-			set_current_state(TASK_UNINTERRUPTIBLE|TASK_FREEZABLE);
+			set_current_state(TASK_IDLE|TASK_FREEZABLE);
 			if (!self.task) /* see coredump_finish() */
 				break;
 			schedule();