Re: [patch] printk from userspace

H. Peter Anvin
2002-08-14T04:41:12Z

Linus Torvalds wrote:
> On Wed, 14 Aug 2002, Benjamin LaHaise wrote:
>
>>/dev/kmsg was another suggestion for the name. But please revert the
>>yet-another-syscall variant -- having a duplicate way for logging that
>>doesn't work with stdio just seems sick to me (sys_syslog should die).
>
>
> Actually, anybody who uses stdio on syslog messages should be roasted.
> Over the nice romantic glow of red-hot coal, slowly cooking the stupid git
> alive.
>
> It's not a bug, it's a feature. A syslog message needs to be atomic, which
> means that it MUST NOT use the buffering of stdio.
>

You can do stdio nonbuffered. As a matter of fact, if you're using
klogd, it *will* be nonbuffered :^)

The point that Ben is making is that it should be a write() system call
instead of something ad hockish, and I think I have to agree with him --
although, again, Andrew's patch does what I need.

-hpa