f2b4bbab1c
superpage mappings were already being created by automatic promotion in vm_fault_populate(), this change reduces the cost of creating those mappings. Essentially, one pmap_enter(..., psind=1) call takes the place of 512 pmap_enter(..., psind=0) calls, and that one pmap_enter(..., psind=1) call eliminates the allocation of a page table page. Reviewed by: kib MFC after: 10 days Differential Revision: https://reviews.freebsd.org/D15572