Re: [PATCH] Use vprintk rather that vsnprintf where possible

From: Kay Sievers
Date: Thu Dec 04 2008 - 22:05:34 EST

On Thu, Dec 4, 2008 at 21:41, Matt Mackall <mpm@xxxxxxxxxxx> wrote:
> This does away with lots of large static and on-stack buffers as well
> as a few associated locks.

> - len = snprintf(s, 256, KERN_DEBUG "%s: ", prefix);
> -
> va_start(args, fmt);
> - len += vsnprintf(&s[len], (256 - len), fmt, args);
> + printk(KERN_DEBUG "%s: ", prefix);
> + vprintk(fmt, args);

If we convert to two printk calls for a single line, does that not
possibly get mixed up with printks from other locations and lead to
hardly readable log output?

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