linux-kernel - Re: [PATCH v4 00/14] Implement call_rcu

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Message-ID: <1a25723e-a7ad-a9f6-bd9f-278b1248d822@joelfernandes.org>
Date:   Thu, 1 Sep 2022 12:11:08 -0400
From:   Joel Fernandes <joel@...lfernandes.org>
To:     Frederic Weisbecker <frederic@...nel.org>,
        "Paul E. McKenney" <paulmck@...nel.org>
Cc:     Uladzislau Rezki <urezki@...il.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        LKML <linux-kernel@...r.kernel.org>,
        Rushikesh S Kadam <rushikesh.s.kadam@...el.com>,
        Neeraj upadhyay <neeraj.iitr10@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        rcu <rcu@...r.kernel.org>,
        Vineeth Pillai <vineeth@...byteword.org>
Subject: Re: [PATCH v4 00/14] Implement call_rcu_lazy() and miscellaneous
 fixes

On 9/1/2022 11:30 AM, Frederic Weisbecker wrote:
> So I'm not entirely comfortable but I'm going to review the current patchset
> anyway and once it lands -rcu I'll try to hack a quick !NOCB implementation
> for measurements purpose.

Sounds good, arguable the core implementation to use bypass list is not too
complex or anything, and maybe you can generalize the bypass list for !NONCB as
well and re-use most of the code. You will need a per-cpu list anyway (bypass or
some other) to queue the CBs. In v1, we had a separate per-cpu list.

Thanks for offering to review the patches, you guys really motivate me to work
on it (I am currently on leave but still working on it). I'll be looking forward
to getting that out soon. Yesterday was good progress.

 - Joel