Re: [PATCH v1 2/3] mm/hugetlb: enforce that PMD PT sharing has split PMD PT locks

On Fri, Jul 26, 2024 at 05:07:27PM +0200, David Hildenbrand wrote: > Sharing page tables between processes but falling back to per-MM page > table locks cannot possibly work. > > So, let's make sure that we do have split PMD locks by adding a new > Kconfig option and letting that depend on CONFIG_

[PATCH v1 2/3] mm/hugetlb: enforce that PMD PT sharing has split PMD PT locks

Sharing page tables between processes but falling back to per-MM page table locks cannot possibly work. So, let's make sure that we do have split PMD locks by adding a new Kconfig option and letting that depend on CONFIG_SPLIT_PMD_PTLOCKS. Signed-off-by: David Hildenbrand --- fs/Kconfig