Messages in this thread | | | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCHv2 0/9] split page table lock for PMD tables | Date | Mon, 16 Sep 2013 15:11:54 +0300 (EEST) |
| |
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
| |