linux-kernel - Re: [PREEMPT_RT][PATCH] printk: Enhance the condition check of msleep in pr

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Date:   Tue, 20 Jul 2021 16:09:21 +0206
From:   John Ogness <john.ogness@...utronix.de>
To:     Joe Perches <joe@...ches.com>, chao.qin@...el.com,
        linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org,
        bigeasy@...utronix.de, tglx@...utronix.de, rostedt@...dmis.org
Cc:     mgross@...ux.intel.com, paul.mei@...el.com, lili.li@...el.com
Subject: Re: [PREEMPT_RT][PATCH] printk: Enhance the condition check of msleep in pr_flush()

On 2021-07-20, Joe Perches <joe@...ches.com> wrote:
> Logic continuations are typically at the end of the previous line.
> And there are few too many parentheses for my taste.
>
> Maybe exceed 80 columns in a single line
>
> 	may_sleep = preemptible() && !in_softirq() && system_state >= SYSTEM_RUNNING;
>
> or align the continuation
>
> 	may_sleep = (preemptible() && !in_softirq() &&
> 		     system_state >= SYSTEM_RUNNING);
>
> or use individual lines
>
> 	may_sleep = (preemptible() &&
> 		     !in_softirq() &&
> 		     system_state >= SYSTEM_RUNNING);

The kernel now has a 100-column policy, but I decided to go with this
third variant for easy reading.

Chao Qin, your patch will be part of the next PREEMPT_RT release. Thank
you.

John Ogness