On Thu, Mar 10, 2022 at 11:32:21AM +0000, Joao Martins wrote: > On 3/10/22 10:32, Mike Rapoport wrote: > > Hi, > > > > On Mon, Mar 07, 2022 at 12:24:55PM +0000, Joao Martins wrote: > >> In preparation for device-dax for using hugetlbfs compound page tail > >> deduplication technique, move the comment block explanation into a > >> common place in Documentation/vm. > >> > >> Cc: Muchun Song <songmuchun@xxxxxxxxxxxxx> > >> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> > >> Suggested-by: Dan Williams <dan.j.williams@xxxxxxxxx> > >> Signed-off-by: Joao Martins <joao.m.martins@xxxxxxxxxx> > >> Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > >> Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx> > >> --- > >> Documentation/vm/index.rst | 1 + > >> Documentation/vm/vmemmap_dedup.rst | 173 +++++++++++++++++++++++++++++ > > > > Sorry for jumping late. > > > > Please consider moving this into Documentation/vm/memory-model.rst along > > with the documentation added in the next patch > > > Hmmm, I don't think this is the right place to put it. > > We don't change the memory model fundamentally (rather the *backing* pages of > vmemmap VA in some specific cases) to justify putting the entire thing there. > The new doc is also just as big as memory-model.rst doc. I feel the two separate > docs stand on their own and the vmemmap dedup technique doc is better placed as > its own. > > Perhaps alternatively (in a followup patch) it could get a relevant mention > (either in an new subsection or in paragraphs of the existing subsections) > in memory-model.rst to point readers to vmemmap_dedup.rst...? Sounds good to me. -- Sincerely yours, Mike.
