> > What is the point of using a tasklet? It is about locking, not context.
>
> No! Just the reverse. The point of using a tasklet has nothing to do
> with locking. It is about running time-consuming code in an
> interrupt-enabled context. That's why bottom halves were invented in the
> first place -- so that lengthy I/O handlers could run without blocking
> interrupts.
A tasklet is useful only if you cannot enable interrupts because you are
in hard irq context. If you shift the existing enqueue code to a tasklet
you gain nothing, because the spinlocks need to block irqs.
If you change the locking there you don't need a tasklet.
Regards
Oliver
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