On Wed, Jun 18, 2025 at 07:39:50PM +0200, David Hildenbrand wrote: > ... and start moving back to per-page things that will absolutely not be > folio things in the future. Add documentation and a comment that the > remaining folio stuff (lock, refcount) will have to be reworked as well. > > While at it, convert the VM_BUG_ON() into a WARN_ON_ONCE() and handle > it gracefully (relevant with further changes), and convert a > WARN_ON_ONCE() into a VM_WARN_ON_ONCE_PAGE(). > > Signed-off-by: David Hildenbrand <david@xxxxxxxxxx> > --- Haha yeah, back to pages after folio conversion :P But makes sense. Reviewed-by: Harry Yoo <harry.yoo@xxxxxxxxxx> Side question: In the future, maybe we will be unable to tell whether a page is compound or not, without first inspecting page->memdesc? (e.g., struct slab could have an order and a pointer to the head page... just imagining). -- Cheers, Harry / Hyeonggon
