linux-kernel - Re: [PATCH v8 0/5] lib,kprobes: kretprobe scalability improvement

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Date:   Mon, 6 Feb 2023 11:40:10 +0800
From:   wuqiang <wuqiang.matt@...edance.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc:     davem@...emloft.net, anil.s.keshavamurthy@...el.com,
        naveen.n.rao@...ux.ibm.com, peterz@...radead.org,
        akpm@...ux-foundation.org, sander@...nheule.net,
        ebiggers@...gle.com, dan.j.williams@...el.com, jpoimboe@...nel.org,
        linux-kernel@...r.kernel.org, lkp@...el.com, mattwu@....com
Subject: Re: [PATCH v8 0/5] lib,kprobes: kretprobe scalability improvement

Hi Steve,

I'm still working on the v9, but these days I'm a bit tied up with projects
at work. Hopefully I can figure it out this month.

Thanks,
Matt

On 2023/2/5 18:22, Steven Rostedt wrote:
> On Thu, 29 Dec 2022 23:52:20 +0900
> Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:
> 
>> Hi Matt,
>>
>> Sorry, I missed to commented v7 patch. Anyway, please read
>> my comments on previous version.
>>
>> On Sun, 18 Dec 2022 13:03:05 +0800
>> wuqiang <wuqiang.matt@...edance.com> wrote:
>>
>>> This patch series introduces a scalable and lockless ring-array based
>>> object pool and replaces the original freelist (a LIFO queue based on
>>> singly linked list) to improve scalability of kretprobed routines.
>>>
>>> v8:
>>>    1) objpool: refcount added for objpool lifecycle management
>>
>> At least this update part looks good to me.
>> (But I think this may be useful only for kretprobe/rethook
>> use cases...)
>>
> 
> Masami,
> 
> Were there other updates you expected from this series?
> 
> -- Steve