On Tue, Mar 01, 2022 at 11:21:15AM +0800, Yun Zhou wrote: > diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c > index 78125ef20255..75511f78075f 100644 > --- a/fs/proc/task_mmu.c > +++ b/fs/proc/task_mmu.c > @@ -1596,7 +1596,8 @@ static const struct mm_walk_ops pagemap_ops = { > * Bits 5-54 swap offset if swapped > * Bit 55 pte is soft-dirty (see Documentation/admin-guide/mm/soft-dirty.rst) > * Bit 56 page exclusively mapped > - * Bits 57-60 zero > + * Bit 57 pte is uffd-wp write-protected (since 5.13) (see ^^^^^^^^^^^^^^^^^ remove these? Thanks, -- Peter Xu