Nicholas Piggin [npig...@gmail.com] wrote:
> cp_abort is only required or user windows, because kernel context
> must not be preempted between a copy/paste pair.
Yes, that is a good optimization.
>
> Without this patch, the init task gets used_vas set when it runs
> the nx842_powernv_init initca
cp_abort is only required or user windows, because kernel context
must not be preempted between a copy/paste pair.
Without this patch, the init task gets used_vas set when it runs
the nx842_powernv_init initcall, which opens windows for kernel
usage.
used_vas is then never cleared anywhere, so it
