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Date: Thu, 20 Apr 2006 17:07:55 -0700
From: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
To: akpm@osdl.org, anil.s.keshavamurthy@intel.com
Cc: Anderw Morton <akpm@osdl.org>, LKML <linux-kernel@vger.kernel.org>,
       Keith Owens <kaos@americas.sgi.com>, Dean Nelson <dnc@americas.sgi.com>,
       Tony Luck <tony.luck@intel.com>,
       Anath Mavinakayanahalli <ananth@in.ibm.com>,
       Prasanna Panchamukhi <prasanna@in.ibm.com>,
       Dave M <davem@davemloft.net>, Andi Kleen <ak@suse.de>
Subject: Re: [(take 2)patch 6/7] Kprobes registers for notify page fault
Message-ID: <20060420170754.A12384@unix-os.sc.intel.com>
Reply-To: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
References: <20060420232456.712271992@csdlinux-2.jf.intel.com> <20060420233912.410449785@csdlinux-2.jf.intel.com>
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In-Reply-To: <20060420233912.410449785@csdlinux-2.jf.intel.com>; from anil.s.keshavamurthy@intel.com on Thu, Apr 20, 2006 at 04:25:02PM -0700
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On Thu, Apr 20, 2006 at 04:25:02PM -0700, Anil S Keshavamurthy wrote:
> ---

Ha..I had missed the description again.


Patch Description:
Kprobes now registers for page fault notifications.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavmurthy@intel.com>

>  kernel/kprobes.c |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> Index: linux-2.6.17-rc1-mm3/kernel/kprobes.c
> ===================================================================
> --- linux-2.6.17-rc1-mm3.orig/kernel/kprobes.c
> +++ linux-2.6.17-rc1-mm3/kernel/kprobes.c
> @@ -544,6 +544,11 @@ static struct notifier_block kprobe_exce
>  	.priority = 0x7fffffff /* we need to notified first */
>  };
>  
> +static struct notifier_block kprobe_page_fault_nb = {
> +	.notifier_call = kprobe_exceptions_notify,
> +	.priority = 0x7fffffff /* we need to notified first */
> +};
> +
>  int __kprobes register_jprobe(struct jprobe *jp)
>  {
>  	/* Todo: Verify probepoint is a function entry point */
> @@ -654,6 +659,9 @@ static int __init init_kprobes(void)
>  	if (!err)
>  		err = register_die_notifier(&kprobe_exceptions_nb);
>  
> +	if (!err)
> +		err = register_page_fault_notifier(&kprobe_page_fault_nb);
> +
>  	return err;
>  }
>  
> 
> --
> -
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