From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Christoph Hellwig <hch@infradead.org>,
linuxppc-dev@ozlabs.org, Jeremy Kerr <jk@ozlabs.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>
Subject: [PATCH] sputrace : use marker_synchronize_unregister()
Date: Mon, 29 Sep 2008 11:11:47 -0400 [thread overview]
Message-ID: <20080929151147.GH11245@Krystal> (raw)
In-Reply-To: <20080929082722.GB18663@elte.hu>
We need a marker_synchronize_unregister() before the end of exit() to make sure
every probe callers have exited the non preemptible section and thus are not
executing the probe code anymore.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Ingo Molnar <mingo@elte.hu>
CC: Jeremy Kerr <jk@ozlabs.org>
CC: linuxppc-dev@ozlabs.org
CC: Christoph Hellwig <hch@infradead.org>
---
arch/powerpc/platforms/cell/spufs/sputrace.c | 1 +
1 file changed, 1 insertion(+)
Index: linux-2.6-lttng/arch/powerpc/platforms/cell/spufs/sputrace.c
===================================================================
--- linux-2.6-lttng.orig/arch/powerpc/platforms/cell/spufs/sputrace.c 2008-07-31 09:34:58.000000000 -0400
+++ linux-2.6-lttng/arch/powerpc/platforms/cell/spufs/sputrace.c 2008-07-31 09:35:15.000000000 -0400
@@ -233,6 +233,7 @@ static void __exit sputrace_exit(void)
remove_proc_entry("sputrace", NULL);
kfree(sputrace_log);
+ marker_synchronize_unregister();
}
module_init(sputrace_init);
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next parent reply other threads:[~2008-09-29 15:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <48E08B05.7030802@cn.fujitsu.com>
[not found] ` <20080929082722.GB18663@elte.hu>
2008-09-29 15:11 ` Mathieu Desnoyers [this message]
2008-09-29 15:13 ` [PATCH] sputrace : use marker_synchronize_unregister() Christoph Hellwig
2008-09-30 0:28 ` Jeremy Kerr
2008-09-30 9:55 ` Ingo Molnar
2008-09-30 11:22 ` [Cbe-oss-dev] " Jeremy Kerr
2008-09-30 11:30 ` Ingo Molnar
2008-09-30 11:34 ` Jeremy Kerr
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