[dm-devel] DM-CRYPT: Scale to multiple CPUs v3
Andi Kleen
andi at firstfloor.org
Sun Oct 10 19:16:40 UTC 2010
> Not if in_interrupt is set though?
> + if (per_cpu(io_wq_cpu, cpu) == current && !in_interrupt()) {
>
> What I am missing here?
The interrupt doesn't block on the task.
Actually most likely that check isn't needed anyways because
that should not happen, was just pure paranoia from my side.
>
> (And assume there is only 1 CPU too for worst case behaviour, presumably.)
One per process, previously it was always one per CPU.
-Andi
--
ak at linux.intel.com -- Speaking for myself only.
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