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Re: [PATCH v9 07/10] tracing: add dynamic function graph tracer for MIPS

To: Wu Zhangjin <wuzhangjin@gmail.com>
Subject: Re: [PATCH v9 07/10] tracing: add dynamic function graph tracer for MIPS
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 20 Nov 2009 17:24:38 +0000
Cc: rostedt@goodmis.org, Nicholas Mc Guire <der.herr@hofr.at>, zhangfx@lemote.com, Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>, Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org
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References: <cover.1258719323.git.wuzhangjin@gmail.com> <c08257b0ef370f6e04ff9719bf7499bae28c70f4.1258719323.git.wuzhangjin@gmail.com>
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On Fri, Nov 20, 2009 at 08:34:35PM +0800, Wu Zhangjin wrote:

> From: Wu Zhangjin <wuzhangjin@gmail.com>
> 
> This patch make function graph tracer work with dynamic function tracer.
> 
> To share the source code of dynamic function tracer(MCOUNT_SAVE_REGS),
> and avoid restoring the whole saved registers, we need to restore the ra
> register from the stack.
> 
> (NOTE: This not work with 32bit! need to ensure why!)
> 
> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>

Queued for 2.6.33 but due to patch 3/3 I won't propagate this series
immediately to linux-next.

Thanks!

  Ralf

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