Subject: Re: [RFC][PATCH 0/4] ftrace: Use -mfentry when supported (this is
 for x86_64 right now)
From: Steven Rostedt <rostedt@goodmis.org>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
        Andrew Morton <akpm@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Andi Kleen <andi@firstfloor.org>, 2nddept-manager@sdl.hitachi.co.jp
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Date: Thu, 17 Feb 2011 15:11:41 -0500
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On Fri, 2011-02-18 at 01:07 +0900, Masami Hiramatsu wrote:

> I just thought that frequent stop-machine is not so good from the user's
> POV. I agree that disabled probe ignoring the call is enough.
> Maybe, it could be done with the similar mechanism of jump optimization.

I thought jump optimization still calls stop_machine too?

-- Steve


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