linux-kernel - Re: [tip:timers/core] timerfd: Allow timers to be cancelled when clock was set

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Message-ID: <1305126680.2914.238.camel@laptop>
Date:	Wed, 11 May 2011 17:11:20 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Kay Sievers <kay.sievers@...y.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com, hpa@...or.com,
	johnstul@...ibm.com, davidel@...ilserver.org, virtuoso@...nd.org,
	tglx@...utronix.de, chris.friesen@...band.com,
	kirill@...temov.name, linux-tip-commits@...r.kernel.org
Subject: Re: [tip:timers/core] timerfd: Allow timers to be cancelled when
 clock was set

On Wed, 2011-05-11 at 16:53 +0200, Kay Sievers wrote:
> 
> > Dunno, an eventfd that triggers every time someone calls adjtime() and
> > related?
> 
> I think, we are exactly not interested in adjtime() calls, but only in
> jumps in wall clock time. 

adjtime(), adjtimex() and settimeofday() are afaik the only ways to make
walltime jump. Anyway what are you arguing about, don't you want the
notification or do you insist on making the kernel slower for the 3
people who care about this daftness?

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