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exit: Sleep at TASK_IDLE when waiting for application core dump

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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.
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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
This commit is contained in:
Linus Torvalds 2024-09-18 08:31:57 +02:00
commit 6d450d120f
1 changed files with 1 additions and 1 deletions
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2
kernel/exit.c
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@ -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();