Messages in this thread | | | Date | Thu, 19 Nov 2009 14:30:08 +0000 | From | Matthew Garrett <> | Subject | Re: [PATCH] [RFC] Add support for uevents on block device idle changes |
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On Thu, Nov 19, 2009 at 03:25:59PM +0100, Kay Sievers wrote: > On Thu, Nov 19, 2009 at 15:16, Matthew Garrett <mjg59@srcf.ucam.org> wrote: > > It could, but it seems a bit of a hack. It'd still also require the > > timer to be in the kernel, so we might as well expose that to userspace. > > Sure, but a userspace configurable policy for an in-kernel disk-idle > powermanagent sounds fine, compared to a single-subscriber > userspace-only disk-idle event interface. :)
Well, we still need to expose this for the access pattern modifying. I really don't see the issue with the single subscriber being devkit-disks - none of the operations involved are atomic, so we're inherently racy here.
-- Matthew Garrett | mjg59@srcf.ucam.org
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