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Subject: Re: [PATCH] sched/kthread: Complain loudly when others violate our
 flags
From: Peter Zijlstra <peterz@infradead.org>
To: Tejun Heo <htejun@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, LKML <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 03 Oct 2011 12:33:08 +0200
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On Mon, 2011-10-03 at 12:20 +0200, Peter Zijlstra wrote:
> I didn't write this change for fun, I actually need to get
> PF_THREAD_BOUND back to sanity, this change alone isn't enough, but it
> gets rid of the worst abuse. This isn't frivolous perturbation. 

Not to mention it gets rid of ~250 lines, and it adds stricter checking
and thereby removes the need to manually flush queues if you really
meant things to be per-cpu.

I mean, really, what's the downside?