linux-kernel - Re: [patch 1/1] schedule removal of FUTEX

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Date:	Tue, 31 Oct 2006 23:48:11 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	akpm@...l.org
Cc:	linux-kernel@...r.kernel.org, drepper@...hat.com, mingo@...e.hu,
	rusty@...tcorp.com.au, tglx@...utronix.de
Subject: Re: [patch 1/1] schedule removal of FUTEX_FD

Ar Maw, 2006-10-31 am 15:09 -0800, ysgrifennodd akpm@...l.org:
> From: Andrew Morton <akpm@...l.org>
> 
> Apparently FUTEX_FD is unfixably racy and nothing uses it (or if it does, it
> shouldn't).
> 
> Add a warning printk, give any remaining users six months to migrate off it.

Andrew - please use time based rate limits for this sort of thing, that
way you actually get to see who is actually using it. Probably doesn't
matter for the FUTEX_FD case as nobody does, but in general the 'ten
times during boot' approach is not as good as ratelimit(): Perhaps
net_ratelimit() ought to become more general ?

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