From: Lai Jiangshan <laijs@cn.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] ftrace: prevent recursion
Date: Thu, 27 Nov 2008 10:21:46 +0800 [thread overview]
Message-ID: <492E043A.9040503@cn.fujitsu.com> (raw)
if the resched flag was set before we entered, then don't reschedule.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index f780e95..668bbb5 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1215,7 +1215,7 @@ ring_buffer_lock_reserve(struct ring_buffer *buffer,
out:
if (resched)
- preempt_enable_notrace();
+ preempt_enable_no_resched_notrace();
else
preempt_enable_notrace();
return NULL;
next reply other threads:[~2008-11-27 2:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-27 2:21 Lai Jiangshan [this message]
2008-11-27 2:36 ` Steven Rostedt
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