* [PATCH] Do not free io context when taking recursive faults in do_exit
@ 2008-11-19 6:45 Nikanth Karthikesan
2008-11-19 9:16 ` Jens Axboe
0 siblings, 1 reply; 2+ messages in thread
From: Nikanth Karthikesan @ 2008-11-19 6:45 UTC (permalink / raw)
To: Jens Axboe; +Cc: linux-kernel
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@suse.de>
---
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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2008-11-19 6:45 [PATCH] Do not free io context when taking recursive faults in do_exit Nikanth Karthikesan
2008-11-19 9:16 ` Jens Axboe
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