Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup

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To: Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx>
Subject: Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup
From: Steven Rostedt <rostedt@xxxxxxxxxxx>
Date: Tue, 23 Jan 2018 09:56:52 -0500
Cc: Petr Mladek <pmladek@xxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, akpm@xxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Cong Wang <xiyou.wangcong@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Mel Gorman <mgorman@xxxxxxx>, Michal Hocko <mhocko@xxxxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>, rostedt@xxxxxxxxxxxxxxxxxxxxx, Byungchul Park <byungchul.park@xxxxxxx>, Pavel Machek <pavel@xxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
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In-reply-to: <20180123064023.GA492@jagdpanzerIV>
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On Tue, 23 Jan 2018 15:40:23 +0900
Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx> wrote:

> Why do we even use irq_work for printk_safe?

Why not?

Really, I think you are trying to solve a symptom and not the problem.
If we are having issues with irq_work, we are going to have issues with
a work queue. It's just spreading out the problem instead of fixing it.

-- Steve

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