linux-kernel - Re: [PATCHv2] kprobes: Introduce is_kprobe

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Message-ID: <4783ACD3.5080700@redhat.com>
Date:	Tue, 08 Jan 2008 12:03:15 -0500
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	Harvey Harrison <harvey.harrison@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	David Miller <davem@...emloft.net>, hskinnemoen@...el.com,
	schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
	tony.luck@...el.com, paulus@...ba.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCHv2] kprobes: Introduce is_kprobe_fault()

Hi,

Thank you for good work!

Harvey Harrison wrote:
> Use a central is_kprobe_fault() inline in kprobes.h to remove all
> of the arch-dependant, practically identical implementations in
> avr32, ia64, powerpc, s390, sparc64, and x86.
> 
> avr32 was the only arch without the preempt_disable/enable pair
> in its notify_page_fault implementation.
> 
> This uncovered a possible bug in the s390 version as that purely
> copied the x86 version unconditionally passing 14 as the trapnr
> rather than the error_code parameter.
> 
> Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>


I tested it on x86-64.

Acked-by: Masami Hiramatsu <mhiramat@...hat.com>

-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division

e-mail: mhiramat@...hat.com, masami.hiramatsu.pt@...achi.com

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