From: Richard Cochran <richardcochran@gmail.com>
Date: Tue, 1 Feb 2011 13:52:26 +0000 (+0000)
Subject: posix-timers: Introduce a syscall for clock tuning.
X-Git-Tag: v2.6.39-rc1~508^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1f1d5ebd10ffa4242bce7a90a56a222d6b7bc77;p=pandora-kernel.git

posix-timers: Introduce a syscall for clock tuning.

A new syscall is introduced that allows tuning of a POSIX clock. The
new call, clock_adjtime, takes two parameters, the clock ID and a
pointer to a struct timex. Any ADJTIMEX(2) operation may be requested
via this system call, but various POSIX clocks may or may not support
tuning.

[ tglx: Adapted to the posix-timer cleanup series. Avoid copy_to_user
  	in the error case ]

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <20110201134419.869804645@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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