On Mon, Apr 08, 2024 at 05:34:29PM -0700, Jane Chu wrote: > At this stage, 'p' is not expected to be a large page since a _refcount has > been taken, right? So is it reasonable to replace the "if (retry)" block > with a VM_BUG_ON warning? otherwise, if 'p' became part of a different > large folio, how to recover from here ? We might have split the THP (if it was part of), but AFAICS nothing stops the kernel to coallesce this page again into a new THP via e.g: madvise(MADV_HUGEPAGE) ? -- Oscar Salvador SUSE Labs
