<snip>
> > (besides, latency would suck. I bet you're better off waiting for the
> > requests if they are all used up. It takes too long to get deep into the
> > kernel from user space, and you cannot use the exclusive waiters with its
> > anti-herd behaviour etc).
>
> Ah, but no. In fact for some things, the wait queue extensions I'm using
> will be more efficient as things like test_and_set_bit for obtaining a
> lock gets executed without waking up a task.
The latency argument is somewhat bogus because there is no problem to
check the request queue, in the aio syscalls, and simply fail if its full.
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