Peter Zijlstra wrote:
> > - reuse CONFIG_SPLIT_PTLOCK_CPUS for PMD split lock;
>
> So why is there still CONFIG_SPLIT_PTE_PTLOCK and
> CONFIG_SPLIT_PMD_PTLOCK in the series?
There is not.
We have USE_SPLIT_{PTE,PMD}_PTLOCK. We can't use split pmd lock everywhere
split pte lock is available: it requires separate enabling on arch side
and will not work on all hardware (i.e. with 2-level page table
configuration).
--
Kirill A. Shutemov
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