From: Nikanth Karthikesan <knikanth@suse.de>
Date: Wed, 19 Nov 2008 09:20:23 +0000 (+0100)
Subject: Do not free io context when taking recursive faults in do_exit
X-Git-Tag: v2.6.29-rc1~569^2~33
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=7c0990c7ee988aa193abbb7da3faeb9279146dbf;p=linux-2.6-omap-h63xx.git

Do not free io context when taking recursive faults in do_exit

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>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/kernel/exit.c b/kernel/exit.c
index c7422ca9203..9a213474f54 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1037,8 +1037,6 @@ 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();
 	}