linux-kernel - Re: [PATCH v5 0/4] printk: replace ringbuffer

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Message-ID: <20200713022356.GB491026@jagdpanzerIV.localdomain>
Date:   Mon, 13 Jul 2020 11:23:56 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:     Petr Mladek <pmladek@...e.com>
Cc:     John Ogness <john.ogness@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrea Parri <parri.andrea@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Paul McKenney <paulmck@...nel.org>, kexec@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 0/4] printk: replace ringbuffer

On (20/07/10 10:28), Petr Mladek wrote:
> On Thu 2020-07-09 15:29:40, John Ogness wrote:
> > Hello,
> > 
> > Here is a v5 for the first series to rework the printk
> > subsystem. The v4 is here [0]. This first series
> > only replaces the existing ringbuffer implementation. No locking
> > is removed. The semantics/behavior of printk are kept the same
> > except for a minor optimization that is reverted (patch 3).
> > 
> > John Ogness (4):
> >   crash: add VMCOREINFO macro to define offset in a struct declared by
> >     typedef
> >   printk: add lockless ringbuffer
> >   Revert "printk: lock/unlock console only for new logbuf entries"
> >   printk: use the lockless ringbuffer
> 
> The patchset is committed in printk/linux.git, branch printk-rework.

FWIW,
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

Thank you.

	-ss