linux-kernel - Re: [Patch 11/11] ftrace plugin for kernel symbol tracing using HW Breakpoint interfaces

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Message-Id: <20090307222955.25A7.A69D9226@jp.fujitsu.com>
Date:	Sat, 7 Mar 2009 23:53:46 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	prasad@...ux.vnet.ibm.com
Cc:	kosaki.motohiro@...fujitsu.com, mingo@...e.hu,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Roland McGrath <roland@...hat.com>
Subject: Re: [Patch 11/11] ftrace plugin for kernel symbol tracing using HW Breakpoint interfaces - v2

Hi

> This patch adds an ftrace plugin to detect and profile memory access over
> kernel variables. It uses HW Breakpoint interfaces to 'watch memory
> addresses.
> 
> Signed-off-by: K.Prasad <prasad@...ux.vnet.ibm.com> 
> ---
>  kernel/trace/Kconfig          |    6 
>  kernel/trace/Makefile         |    1 
>  kernel/trace/trace.h          |   16 +
>  kernel/trace/trace_ksym.c     |  448 ++++++++++++++++++++++++++++++++++++++++++
>  kernel/trace/trace_selftest.c |   36 +++
>  5 files changed, 507 insertions(+)

Could you please update Documentation/ftrace.txt?
I guess many user interesting this patch. :)




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