On Fri, Aug 30, 2019 at 11:55:30PM +1000, Stephen Rothwell wrote: > Caused by commit > > 1c8999b3963d ("mm: introduce MADV_COLD") > (and following commits) > > interacting with commit > > 923bfc561e75 ("pagewalk: separate function pointers from iterator data") > > from the hmm tree. Yes, this is expected thanks > diff --git a/mm/madvise.c b/mm/madvise.c > index 7ec7c8f6d5ab..20598df8360a 100644 > --- a/mm/madvise.c > +++ b/mm/madvise.c > @@ -446,6 +446,10 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd, > return 0; > } > > +static const struct mm_walk_ops cold_walk_ops = { > + .pmd_entry = madvise_cold_or_pageout_pte_range, > +}; > + > +static const struct mm_walk_ops pageout_walk_ops = { > + .pmd_entry = madvise_cold_or_pageout_pte_range, > +}; These two can be shared Looks OK otherwise Jason