Re: [PATCH] [RFC] notify userspace about time changes

[H. Peter Anvin]

On 08/05/2010 03:22 PM, Kay Sievers wrote:
> 
> I think that's really awkward interface, to pass file descriptor
> numbers around and write them to magic sysfs files.
> 
> I would very much prefer a file that contains the current time, and
> wakes up possible users with a POLL_ERR on changes caused by some
> other process. That works very well for things like /proc/mounts, is
> easy to get, and does not need a full page of weird instructions to
> get stuff done. :)
> 

Okay, what's wrong with having a file descriptor that gets *written to*
on a notification?  Why POLL_ERR?

	-hpa
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