linux-kernel - Re: [PATCH RFC 2/8] clock device: convert clock

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Message-Id: <201011101116.08038.arnd@arndb.de>
Date:	Wed, 10 Nov 2010 11:16:07 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	john stultz <johnstul@...ibm.com>
Cc:	Richard Cochran <richardcochran@...il.com>,
	linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Christoph Lameter <cl@...ux.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH RFC 2/8] clock device: convert clock_gettime

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
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