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Re: [PATCH][kprobe] enabling booster on the preemptible kernel
- From: Masami Hiramatsu <masami dot hiramatsu dot pt at hitachi dot com>
- To: Ingo Molnar <mingo at redhat dot com>
- Cc: "Keshavamurthy, Anil S" <anil dot s dot keshavamurthy at intel dot com>, Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, "bibo,mao" <bibo dot mao at intel dot com>, Prasanna S Panchamukhi <prasanna at in dot ibm dot com>, Andrew Morton <akpm at osdl dot org>, linux-kernel <linux-kernel at vger dot kernel dot org>, SystemTAP <systemtap at sources dot redhat dot com>, Yumiko Sugita <yumiko dot sugita dot yf at hitachi dot com>, Satoshi Oshima <soshima at redhat dot com>, Hideo Aoki <haoki at redhat dot com>
- Date: Tue, 21 Nov 2006 09:44:34 +0900
- Subject: Re: [PATCH][kprobe] enabling booster on the preemptible kernel
- Organization: Systems Development Lab., Hitachi, Ltd., Japan
- References: <455DAC83.3030505@hitachi.com> <1163775843.8789.55.camel@earth>
Hi Ingo,
Ingo Molnar wrote:
> On Fri, 2006-11-17 at 21:35 +0900, Masami Hiramatsu wrote:
>> From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
>>
>> This patch enables the kprobe-booster on the preemptible kernel.
>> For this purpose, I introduced a kind of garbage collector of
>> the instruction slots. This garbage collector checks safety before
>> releasing the garbage slots.
>>
>> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
>
> nice work - looks really sensible! This opens the door to djprobes (or
> rather, to the transparent kprobes speedup that used to be a separate
> interface), right?
Right. Actually, I already integrated djprobe and kprobes.
I'll post it as soon as possible.
>
> Acked-by: Ingo Molnar <mingo@elte.hu>
Thank you.
--
Masami HIRAMATSU
Linux Technology Center
Hitachi, Ltd., Systems Development Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com