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Date: Tue, 29 May 2012 18:45:14 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> Cc: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Ananth N Mavinakayanahalli <ananth@...ibm.com>, "Frank Ch. Eigler" <fche@...hat.com>, Andrew Morton <akpm@...ux-foundation.org>, Frederic Weisbecker <fweisbec@...il.com>, yrl.pp-manager.tt@...achi.com Subject: Re: [RFC PATCH -tip 0/9]ftrace, kprobes: Ftrace-based kprobe optimization On Tue, 2012-05-29 at 21:48 +0900, Masami Hiramatsu wrote: > Also, this makes all __kprobes functions "notrace", because > some of those functions are considered as to be called from > kprobes handler which is called from function tracer. > I think that is another discussion point. Perhaps, we need > to introduce another tag which means "don't put kprobe on > this function" instead of __kprobes and apply that. Actually, instead, we can force kprobes to have all "__kprobes" functions added to its 'notrace' ftrace_ops. This will just keep kprobes from function tracing these, as I find myself tracing functions marked by kprobes quite a bit. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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