linux-kernel - Re: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and waiter logic to load balance console writes

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Message-ID: <20180503133053.GI18390@sasha-vm>
Date:   Thu, 3 May 2018 13:30:57 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     Pavel Machek <pavel@....cz>
CC:     Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Petr Mladek <pmladek@...e.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Peter Zijlstra <peterz@...radead.org>, Jan Kara <jack@...e.cz>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        Byungchul Park <byungchul.park@....com>,
        Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and
 waiter logic to load balance console writes

On Thu, May 03, 2018 at 11:32:15AM +0200, Pavel Machek wrote:
>Hi!
>
>> >- It must be obviously correct and tested.
>> >
>> >If it introduces new bug, it is not correct, and certainly not
>> >obviously correct.
>>
>> As you might have noticed, we don't strictly follow the rules.
>
>Yes, I noticed. And what I'm saying is that perhaps you should follow
>the rules more strictly.

Again, this was stated many times by Greg and others, the rules are not
there to be strictly followed.

>> Take a look at the whole PTI story as an example. It's way more than 100
>> lines, it's not obviously corrent, it fixed more than 1 thing, and so
>> on, and yet it went in -stable!
>>
>> Would you argue we shouldn't have backported PTI to -stable?
>
>Actually, I was surprised with PTI going to stable. That was clearly
>against the rules. Maybe the security bug was ugly enough to warrant
>that.
>
>But please don't use it as an argument for applying any random
>patches...

How about this: if a -stable maintainer has concerns with how I follow
the -stable rules, he's more than welcome to reject my patches. Sounds
like a plan?