linux-kernel - [PATCH -tip 0/1] posix-cpu-timers: fix CPUCLOCK

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Date:	Tue,  8 Sep 2009 16:40:07 +0200
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Stanislaw Gruszka <sgruszka@...hat.com>
Subject: [PATCH -tip 0/1] posix-cpu-timers: fix CPUCLOCK_{PROF,VIRT} periodic tics precision -v1


Reference:
http://lkml.org/lkml/2009/8/11/174

Changelog v0 -> v1:

Fix for PowerPC with CONFIG_VIRT_CPU_ACCOUNTING. Due to rounding return
value of cputime_to_jiffies(), calculations of next expiration time
not worked as I expected. I removed any conversions and do direct
calculations on cputime values treat them as unsigned long long.

Cheers
Stanislaw
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