On Fri, Aug 21, 2020 at 09:20:54PM -0700, John Hubbard wrote: > Direct IO behavior: > > ITER_IOVEC: > pin_user_pages_fast(); > break; > > ITER_KVEC: // already elevated page refcount, leave alone > ITER_BVEC: // already elevated page refcount, leave alone > ITER_PIPE: // just, no :)
Why? What's wrong with splice to O_DIRECT file?
