linux-kernel - Re: [PATCH 1/2] tracing: Move syscalls metadata handling from arch to core

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Message-ID: <20090919071616.GA15292@elte.hu>
Date:	Sat, 19 Sep 2009 09:16:16 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Li Zefan <lizf@...fujitsu.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Jason Baron <jbaron@...hat.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Paul Mundt <lethal@...ux-sh.org>
Subject: Re: [PATCH 1/2] tracing: Move syscalls metadata handling from arch
	to core


* Frederic Weisbecker <fweisbec@...il.com> wrote:

> Most of the syscalls metadata processing is done from arch. But these 
> operations are mostly generic accross archs. Especially now that we 
> have a common variable name that expresses the number of syscalls 
> supported by an arch: NR_syscalls, the only remaining bits that need 
> to reside in arch is the syscall nr to addr translation.
> 
> Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Li Zefan <lizf@...fujitsu.com>
> Cc: Masami Hiramatsu <mhiramat@...hat.com>
> Cc: Jason Baron <jbaron@...hat.com>
> Cc: Lai Jiangshan <laijs@...fujitsu.com>
> Cc: Heiko Carstens <heiko.carstens@...ibm.com>
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Cc: Paul Mundt <lethal@...ux-sh.org>
> ---
>  arch/s390/kernel/ftrace.c     |   67 +---------------------------------
>  arch/x86/kernel/ftrace.c      |   76 +-------------------------------------
>  include/trace/syscall.h       |    2 +-
>  kernel/trace/trace_syscalls.c |   80 +++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 85 insertions(+), 140 deletions(-)

Martin, Heiko, would this cleanup be fine with you?

	Ingo
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