Re: [PATCH AUTOSEL for 4.14 015/161] printk: Add console owner and waiter logic to load balance console writes

From: Linus Torvalds
Date: Mon Apr 16 2018 - 14:30:14 EST


On Mon, Apr 16, 2018 at 11:26 AM, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> The problem is that it only fixed a critical bug, but didn't go far
> enough to keep the bug fix from breaking API.

An API breakage that gets noticed *is* a crtitical bug.

You can't call something else critical and then say "but it broken API".

Seriously. Why do I even have to mention this?

If you break user workflows, NOTHING ELSE MATTERS.

Even security is secondary to "people don't use the end result,
because it doesn't work for them any more".

Really.

Stop with this idiotic "only API". Breaking user space is just about
the only thing that really matters. The rest is "small matter of
implementation".

Linus