linux-kernel - Re: [PATCH v8 00/16] ftrace for MIPS

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Message-ID: <alpine.LFD.2.00.0911161506540.24119@localhost.localdomain>
Date:	Mon, 16 Nov 2009 15:19:30 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Ralf Baechle <ralf@...ux-mips.org>
cc:	Wu Zhangjin <wuzhangjin@...il.com>, rostedt@...dmis.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Nicholas Mc Guire <der.herr@...r.at>,
	David Daney <ddaney@...iumnetworks.com>,
	Richard Sandiford <rdsandiford@...glemail.com>,
	Patrik Kluba <kpajko79@...il.com>,
	Michal Simek <monstr@...str.eu>,
	"Maciej W . Rozycki" <macro@...ux-mips.org>,
	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org,
	zhangfx@...ote.com, zhouqg@...il.com
Subject: Re: [PATCH v8 00/16] ftrace for MIPS

On Mon, 16 Nov 2009, Ralf Baechle wrote:
> On Sat, Nov 14, 2009 at 02:30:31PM +0800, Wu Zhangjin wrote:
> 
> Time to talk about how to get the whole thing merged.
> 
> I'm reasonably happy with the arch part of the patchset.  There are two
> remaining issues in the arch part - cache flushing will not work as is on
> a SMP system and the whole code patching is going to fail if the kernel
> text is replicated with CONFIG_REPLICATE_KTEXT which is an IP27-only option.
> 
> I suggest we should go ahready and just disallow dynamic ftrace on on
> these problematic configurations for now and deal with them later, so
> something like
> 
> 	select HAVE_DYNAMIC_FTRACE if !SMP && !REPLICATE_KTEXT

Makes sense.
 
> This leaves the non-arch bits to merge; patches which touch code outside
> of arch/mips are:

I'm going to comment on the patches.

Thanks,

	tglx
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