Re: [RFC][PATCHv2 2/4] printk: move printk_safe macros to printk header

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To: Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx>
Subject: Re: [RFC][PATCHv2 2/4] printk: move printk_safe macros to printk header
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Tue, 16 Oct 2018 14:38:37 +0200
Cc: linux-kernel@xxxxxxxxxxxxxxx, Petr Mladek <pmladek@xxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Daniel Wang <wonderfly@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Alan Cox <gnomes@xxxxxxxxxxxxxxxxxxx>, Jiri Slaby <jslaby@xxxxxxxx>, Peter Feiner <pfeiner@xxxxxxxxxx>, linux-serial@xxxxxxxxxxxxxxx, Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
In-reply-to: <20181016122734.GA1259@jagdpanzerIV>
References: <20181016050428.17966-1-sergey.senozhatsky@gmail.com> <20181016050428.17966-3-sergey.senozhatsky@gmail.com> <20181016072719.GB4030@hirez.programming.kicks-ass.net> <20181016122734.GA1259@jagdpanzerIV>
User-agent: Mutt/1.10.1 (2018-07-13)

On Tue, Oct 16, 2018 at 09:27:34PM +0900, Sergey Senozhatsky wrote:
> On (10/16/18 09:27), Peter Zijlstra wrote:
> > 
> > So I really _really_ hate all this. Utterly detest it.
> 
> I learned a new word today - detest. I can haz re-entrant consoles now please?

early_serial_write() not haz a lock anywhere.

References:
- [RFC][PATCHv2 0/4] less deadlock prone serial consoles
  - From: Sergey Senozhatsky
- [RFC][PATCHv2 2/4] printk: move printk_safe macros to printk header
  - From: Sergey Senozhatsky
- Re: [RFC][PATCHv2 2/4] printk: move printk_safe macros to printk header
  - From: Peter Zijlstra
- Re: [RFC][PATCHv2 2/4] printk: move printk_safe macros to printk header
  - From: Sergey Senozhatsky

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