On Mon, 13 Mar 2000, Linus Torvalds wrote:
>We want to avoid having long latencies, and we can easily get that by just
>allowing timer interrupts to schedule which we're in a big
>"memcpy_to_user()" and we don't hold any kernel lock etc. No need to try
>to be clever at lock release time - if we get a pending reschedule, we
>might as well leave it pending, it's going to be serviced soon enough
>anyway.
Agreed. That way we don't have any downside.
The kernel fully preemtable thing is fun thing and so I am trying to boot
it (it's currently crashing at the first timer irq :), but actually I am
not considering it for real life (or better "non real _time_ life" :).
Andrea
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