Re: [PATCH 2 of 4] Introduce i386 fibril scheduling

[Michael K. Edwards]

An idiot using my keyboard wrote:
>     - AIO requests that are serviced from cache ought to immediately
> invoke the callback, in the same thread context as the caller, fixing
> up the stack so that the callback returns to the instruction following
> the syscall.  That way the "immediate completion" path through the
> callback can manipulate data structures, allocate memory, etc. just as
> if it had followed a synchronous call.

Or, of course:
   if (async_stat(entry) == 0) {
       ... immediate completion code path ...
   }

Ugh.  But I think the discussion about the delayed path still holds.

- Michael
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/