On Wed, Sep 04, 2024 at 09:18:01AM -0700, Suren Baghdasaryan wrote: > I'm not sure I understand your suggestion, Matthew. We allocate a > folio and need to store a reference to the tag associated with the > code that allocated that folio. We are not operating with ranges here. > Are you suggesting to use a maple tree instead of page_ext to store > this reference? I'm saying that a folio has a physical address. So you can use a physical address as an index into a maple tree to store additional information instead of using page_ext or trying to hammer the additional information into struct page somewhere.
