[PATCH] Do not free io context when taking recursive faults in do_exit

[Nikanth Karthikesan]

When taking recursive faults in do_exit, if the io_context is not null, 
exit_io_context() is being called. But it might decrement the refcount 
more than once. It is better to leave this task alone.

Signed-off-by: Nikanth Karthikesan <knikanth@xxxxxxx>

---

diff --git a/kernel/exit.c b/kernel/exit.c
index 80137a5..22dedf5 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1024,8 +1024,6 @@ NORET_TYPE void do_exit(long code)
 		 * task into the wait for ever nirwana as well.
 		 */
 		tsk->flags |= PF_EXITPIDONE;
-		if (tsk->io_context)
-			exit_io_context();
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		schedule();
 	}

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