linux-kernel - Re: [PATCH] kmemtrace: Remove the relay version of kmemtrace.

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Message-ID: <20090106091927.GA29863@elte.hu>
Date:	Tue, 6 Jan 2009 10:19:27 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
Cc:	penberg@...helsinki.fi, rostedt@...dmis.org, fweisbec@...il.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kmemtrace: Remove the relay version of kmemtrace.


* Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro> wrote:
> 
> > kmemtrace now uses ftrace. This patch removes the relay version.
> > 
> > Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
> > ---
> >  kernel/trace/Kconfig |    1 -
> >  mm/Makefile          |    1 -
> >  mm/kmemtrace.c       |  333 --------------------------------------------------
> >  3 files changed, 0 insertions(+), 335 deletions(-)
> >  delete mode 100644 mm/kmemtrace.c
> 
> applied to tip/tracing/kmemtrace2, thanks Eduard!

I needed the small fixlet below as well.

	Ingo

-------------->
>From 3e80680208ba6ce9635ca7c21ad0019442ea166a Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@...e.hu>
Date: Tue, 6 Jan 2009 10:16:35 +0100
Subject: [PATCH] kmemtrace: add kmemtrace_init()

Impact: build fix

leftover from the relayfs version - but we want to keep it because
this call is the earliest opportunity when we can start kmemtrace
tracing. (after kmem_cache_init()).

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/trace/kmemtrace.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/kmemtrace.c b/kernel/trace/kmemtrace.c
index 2bfdcd3..faaa5ae 100644
--- a/kernel/trace/kmemtrace.c
+++ b/kernel/trace/kmemtrace.c
@@ -337,6 +337,11 @@ static struct tracer kmem_tracer __read_mostly = {
 	.flags		= &kmem_tracer_flags
 };
 
+void kmemtrace_init(void)
+{
+	/* earliest opportunity to start kmem tracing */
+}
+
 static int __init init_kmem_tracer(void)
 {
 	return register_tracer(&kmem_tracer);
--
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