On Mon, May 01, 2023 at 12:27:55PM -0700, Vishal Moola (Oracle) wrote: > The MM subsystem is trying to shrink struct page. This patchset > introduces a memory descriptor for page table tracking - struct ptdesc. > > This patchset introduces ptdesc, splits ptdesc from struct page, and > converts many callers of page table constructor/destructors to use ptdescs. Lightly related food for future thought - based on some discussions at LSF/MM it would be really nice if an end result of this was that a rcu_head was always available in the ptdesc so we don't need to allocate memory to free a page table. Jason
