__swp_offset
pmd = __pmd(mk_swap_rste(__swp_type(arch_entry), __swp_offset(arch_entry)));
rste = mk_swap_rste(__swp_type(arch_entry), __swp_offset(arch_entry));
__swp_pteval_entry(__swp_type(x), __swp_offset(x)) })
return swp_entry(__swp_type(arch_entry), __swp_offset(arch_entry));
return swp_entry(__swp_type(arch_entry), __swp_offset(arch_entry));
entry = swp_entry(__swp_type(entry), __swp_offset(entry));