Hi Andrew, David, Usama, I'm attempting to rebase this series on top of Usama's [PATCH v3 0/6] mm: split underutilized THPs[1] However, I feel it is impossible and we might be tackling things in the wrong order. This series should probably come before Usama's one, as the new partially_mapped should be ok to handle both nr_split_deferred and split_deferred. That said, the new partially_mapped still has several unresolved issues blocking my rebase. [1]https://lore.kernel.org/linux-mm/20240813120328.1275952-1-usamaarif642@xxxxxxxxx What do you think about this? Thanks Barry