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Date: Wed, 2 Feb 2011 10:19:00 +0100
From: Richard Cochran <richardcochran@...il.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>,
John Stultz <john.stultz@...aro.org>,
Richard Cochran <richard.cochran@...cron.at>,
Ingo Molnar <mingo@...e.hu>,
Peter Zijlstra <peterz@...radead.org>
Subject: Re: [patch 27/28] posix-timers: Add support for fd based clocks
On Tue, Feb 01, 2011 at 01:52:32PM -0000, Thomas Gleixner wrote:
> --- linux-2.6-tip.orig/include/linux/posix-timers.h
> +++ linux-2.6-tip/include/linux/posix-timers.h
> +/*
> + * Bit fields within a clockid:
> + *
> + * The most significant 29 bits hold either a pid or a file descriptor.
> + *
> + * Bit 2 indicates whether a cpu clock refers to a thread or a process.
> + *
> + * Bits 1 and 0 give the type: PROF=0, VIRT=1, SCHED=2, or FD=3.
> + *
> + * A clockid is invalid if bits 2, 1, and 0 all set.
I should have said, "if bits 2, 1, and 0 *are* all set."
Thanks,
Richard
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