Re: [PATCH] __free_pages_ok oops

[Linus Torvalds]

On Mon, 25 Feb 2002, Benjamin LaHaise wrote:
> 
> I disagree: requiring aio to execute completion in user context means 
> that we can no longer have quick completion directly from an interrupt 
> handler to a busy server executing in userland.

Note that teh IO _completion_ can happen in user land. That does not mean 
that the IO page tear-down can (or should) happen at the same time.

There are two issues here:
 - the data structures supporting the IO, built up and torn down from 
   process space.
 - the IO itself.

One is synchronous, the other is not.

		Linus