Re: [PATCH] swap: send callback when swap slot is freed

Peter Zijlstra
2009-08-13T06:53:32Z

On Thu, 2009-08-13 at 08:00 +0530, Nitin Gupta wrote:
> > I don't share Peter's view that it should be using a more general
> > notifier interface (but I certainly agree with his EXPORT_SYMBOL_GPL).
>
> Considering that the callback is made under swap_lock, we should not
> have an array of callbacks to do. But what if this callback finds other
> users too? I think we should leave it in its current state till it finds
> more users and probably add BUG() to make sure callback is not already set.
>
> I will make it EXPORT_SYMBOL_GPL.

If its such a tightly coupled system, then why is compcache a module?