From: Arnd Bergmann <arnd@arndb.de>
To: john stultz <johnstul@us.ibm.com>
Subject: Re: [PATCH RFC 2/8] clock device: convert clock_gettime
Date: Wed, 10 Nov 2010 11:16:07 +0100
User-Agent: KMail/1.12.2 (Linux/2.6.35-16-generic; KDE/4.3.2; x86_64; ; )
Cc: Richard Cochran <richardcochran@gmail.com>, linux-kernel@vger.kernel.org,
        linux-api@vger.kernel.org, Alan Cox <alan@lxorguk.ukuu.org.uk>,
        Christoph Lameter <cl@linux.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>
References: <cover.1288897198.git.richard.cochran@omicron.at> <201011080756.50930.arnd@arndb.de> <1289338622.9434.46.camel@localhost.localdomain>
In-Reply-To: <1289338622.9434.46.camel@localhost.localdomain>
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="utf-8"
Content-Transfer-Encoding: 7bit
Message-Id: <201011101116.08038.arnd@arndb.de>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 660
Lines: 15

On Tuesday 09 November 2010, john stultz wrote:
> I wonder thought if it would be worth having a syscall to convert from
> fd to clock_id so it could be more flexible in the future. But it may
> not be worth it, as we're probably already limited by the cpuclock
> implementation.

If the file descriptor comes from a character device, we don't even need
a syscall, it could simply be an ioctl on the device.

	Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/