Re: [PATCH] [RFC] Add support for uevents on block device idlechanges

[Matthew Garrett]

On Wed, Nov 18, 2009 at 10:29:23PM +0100, Kay Sievers wrote:

> I guess, the "idle_since" file could be made poll()able, and throw an
> event when the idle time is re-set to 0, so the value checking needs
> only to happen as long we wait for the disk to become idle. As long as
> it's busy anyway, the rare wakeups should not matter much. :)

That'd be a userspace wakeup every time something gets submitted to the 
block device, which sounds far from ideal...

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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