On Fri, Mar 05, 2021 at 04:18:36AM +0000, Matthew Wilcox (Oracle) wrote: > Our type system does not currently distinguish between tail pages and > head or single pages. This is a problem because we call compound_head() > multiple times (and the compiler cannot optimise it out), bloating the > kernel. It also makes programming hard as it is often unclear whether > a function operates on an individual page, or an entire compound page. I've pushed a new version out here: https://git.infradead.org/users/willy/pagecache.git/shortlog/refs/heads/folio I think it takes into account everyone's comments so far. It even compiles.
