On Thu, Feb 20, 2025 at 10:21:01PM +1300, Barry Song wrote: > 2. src_anon_vma and its lock – swapcache doesn’t require it（folio is not mapped） Could you help explain what guarantees the rmap walk not happen on a swapcache page? I'm not familiar with this path, though at least I see damon can start a rmap walk on PageAnon almost with no locking.. some explanations would be appreciated. -- Peter Xu
