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

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Message-ID: <20230205052240.4581ef09@rorschach.local.home>
Date:   Sun, 5 Feb 2023 05:22:40 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc:     wuqiang <wuqiang.matt@...edance.com>, 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

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