linux-kernel - Re: [PATCH 1/2] ftrace: Separate include/trace/kmemtrace.h to kmemtrace part and tracepoint part

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Date:	Fri, 10 Apr 2009 13:03:03 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Zhaolei <zhaolei@...fujitsu.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Tom Zanussi <tzanussi@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ftrace: Separate include/trace/kmemtrace.h to
	kmemtrace part and tracepoint part


* Zhaolei <zhaolei@...fujitsu.com> wrote:

> Current kmemtrace.h is used both as header file of kmemtrace and kmem's
> tracepoints definition.
> Tracepoints' definition file may be used by other code, and should only have
> definition of tracepoint.
> 
> We can separate include/trace/kmemtrace.h into 2 files:
>   include/linux/kmemtrace.h: header file for kmemtrace
>   include/trace/kmem.h:      definition of kmem tracepoints
> 
> Signed-off-by: Zhao Lei <zhaolei@...fujitsu.com>
> ---
>  include/linux/kmemtrace.h             |   25 +++++++++++++++++++++++++
>  include/linux/slab_def.h              |    2 +-
>  include/linux/slub_def.h              |    2 +-
>  include/trace/{kmemtrace.h => kmem.h} |   25 +++----------------------
>  init/main.c                           |    2 +-
>  kernel/trace/kmemtrace.c              |    2 +-
>  kernel/trace/trace.h                  |    2 +-
>  mm/slab.c                             |    2 +-
>  mm/slob.c                             |    2 +-
>  mm/slub.c                             |    2 +-
>  10 files changed, 36 insertions(+), 30 deletions(-)
>  create mode 100644 include/linux/kmemtrace.h
>  rename include/trace/{kmemtrace.h => kmem.h} (78%)

Pekka, Eduard, do you agree with these two patches? Converting those 
tracepoints to TRACE_EVENT() is really nice. The above include file 
restructuring makes sense too - it separates tracepoint definition 
from the plugin init method.

	Ingo
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