linux-kernel - Re: [PATCH v3] rcu: Add a minimum time for marking boot as completed

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Message-ID: <ZA9BIgEN2MGwAgd3@pc636>
Date:   Mon, 13 Mar 2023 16:28:34 +0100
From:   Uladzislau Rezki <urezki@...il.com>
To:     "Zhuo, Qiuxu" <qiuxu.zhuo@...el.com>
Cc:     Uladzislau Rezki <urezki@...il.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "rcu@...r.kernel.org" <rcu@...r.kernel.org>
Subject: Re: [PATCH v3] rcu: Add a minimum time for marking boot as completed

On Mon, Mar 13, 2023 at 01:48:18PM +0000, Zhuo, Qiuxu wrote:
> > From: Uladzislau Rezki <urezki@...il.com>
> > [...]
> > XQ-DQ54:/ # echo 1 > /sys/kernel/rc
> > rcu_expedited       rcu_improve_normal  rcu_normal
> > XQ-DQ54:/ # echo 1 > /sys/kernel/rcu_improve_normal 
> 
> Hi Rezki,
> 
> I applied your prototype patch, but I did NOT find the sys-node:
>  "/sys/kernel/rcu_improve_normal" on my system.
> 
> What is this node used for? What am I missing? Thanks!
> 
> [ There were only "rcu_expedited" & " rcu_normal" sys nodes
> on my system. ]
> 
The prototype i posted does not have such helper, i added it just
for my local tests.

--
Uladzislau Rezki