Re: [RFC][PATCH] irq_work

Andi Kleen
2010-06-24T13:02:37Z

On Thu, Jun 24, 2010 at 02:35:37PM +0200, Ingo Molnar wrote:
> All of these solutions use the fact that perf events are a generic event
> framework. If there's any missing details somewhere then fixes/enhancements
> can be added - right now our in-kernel event consumers are simple. But the
> design is sound.

One immediate problem that comes to mind with the proposal
is that if the event is of a type that cannot be dropped (e.g. an error
that needs to be handled) then a shared ring buffer cannot guarantee that.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.