linux-kernel - Re: early_printk accessing __log

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Message-Id: <200707231419.13182.rgetz@blackfin.uclinux.org>
Date:	Mon, 23 Jul 2007 14:19:12 -0400
From:	Robin Getz <rgetz@...ckfin.uclinux.org>
To:	"Mike Frysinger" <vapier.adi@...il.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, "Greg Ungerer" <gerg@...pgear.com>,
	"Russell King" <rmk@....linux.org.uk>,
	"Paul Mundt" <lethal@...ux-sh.org>,
	"Tim Bird" <tim.bird@...sony.com>, bryan.wu@...log.com
Subject: Re: early_printk accessing __log_buf

On Sun 22 Jul 2007 19:50, Mike Frysinger pondered:
>
> i think the attached two functions account for what Robin and Andrew
> were thinking ...

A note about why/when grab_lock would be set to zero (pre-kernel init, or 
OOPs) might be nice. 

Or - remove it - and tell people they should be using do_syslog interface in 
a "normal" kernel environment (where log_end or log_start can be updated).

Either would be fine with me. Andrew?

-Robin
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