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Date: Tue, 28 Nov 2017 14:45:00 -0500
From: Steven Rostedt <rostedt@goodmis.org>
To: Mark Salyzyn <salyzyn@android.com>
Cc: Prarit Bhargava <prarit@redhat.com>, Petr Mladek <pmladek@suse.com>,
        Thomas Gleixner <tglx@linutronix.de>,
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        Peter Zijlstra <peterz@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Joe Perches <joe@perches.com>
Subject: Re: [RFC patch 7/7] timekeeping: Hack to use fine grained
 timestamps during boot
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On Tue, 28 Nov 2017 11:10:02 -0800
Mark Salyzyn <salyzyn@android.com> wrote:

> There is no guarantee of sequential order of delivery for kernel prints.

But isn't the timestamp taken with the logbuf_lock, and then delivered
to the printk buffer? That would guarantee that all events will be in
order, and the timestamps be sequential. They are serialized by the
logbuf_lock.

-- Steve