Re: Attempted summary of suspend-blockers LKML thread, take three

[Paul E. McKenney]

On Tue, Aug 10, 2010 at 03:44:05PM +0100, Alan Cox wrote:
> Which reminds me. I forgot a very important way that user space signals
> the kernel as to its intents.
> 
> The kernel can see whether code is sleeping by choice or sleeping because
> someone blocked it (eg a page fault). The kernel also knows a lot about
> the event being waited for (much more so in -rt than base).
> 
> We don't capture all of that info but it seems it would advance progress
> in the right direction to do so better.

As one approach of many, this makes a great deal of sense.

							Thanx, Paul
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