linux-kernel - Re: early_printk accessing __log

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Message-Id: <200707241612.56509.rgetz@blackfin.uclinux.org>
Date:	Tue, 24 Jul 2007 16:12:56 -0400
From:	Robin Getz <rgetz@...ckfin.uclinux.org>
To:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Mike Frysinger" <vapier.adi@...il.com>
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 Tue 24 Jul 2007 14:12, Andrew Morton pondered:
> Oh well, it sounds like we need the super-duper fast version.  Keep it
> as simple as possible, please.

What about:

int log_buf_copy(void *dest, int idx, size_t n);

starting at index idx - copy n bytes to dest, return the number of bytes 
copied (in case there are not n bytes in the log_buf yet).
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