move exit_task_work() past exit_files() et.al.
... and get rid of PF_EXITING check in task_work_add().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/exit.c b/kernel/exit.c
index 2f59cc3..d17f6c4 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -953,14 +953,11 @@
exit_signals(tsk); /* sets PF_EXITING */
/*
* tsk->flags are checked in the futex code to protect against
- * an exiting task cleaning up the robust pi futexes, and in
- * task_work_add() to avoid the race with exit_task_work().
+ * an exiting task cleaning up the robust pi futexes.
*/
smp_mb();
raw_spin_unlock_wait(&tsk->pi_lock);
- exit_task_work(tsk);
-
if (unlikely(in_atomic()))
printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",
current->comm, task_pid_nr(current),
@@ -995,6 +992,7 @@
exit_shm(tsk);
exit_files(tsk);
exit_fs(tsk);
+ exit_task_work(tsk);
check_stack_usage();
exit_thread();