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Micro-optimize the control flow in _pmap_unwire_ptp(), and eliminate

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unnecessary parentheses.

Reviewed by:	kib, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D22893
This commit is contained in:
Alan Cox 2019-12-21 22:32:24 +00:00
parent 31bfaf17a7
commit 50079417a5
1 changed files with 2 additions and 3 deletions
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5
sys/amd64/amd64/pmap.c
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@ -3542,7 +3542,7 @@ _pmap_unwire_ptp(pmap_t pmap, vm_offset_t va, vm_page_t m, struct spglist *free)
/*
* unmap the page table page
*/
if (m->pindex >= (NUPDE + NUPDPE)) {
if (m->pindex >= NUPDE + NUPDPE) {
/* PDP page */
pml4_entry_t *pml4;
pml4 = pmap_pml4e(pmap, va);
@ -3569,8 +3569,7 @@ _pmap_unwire_ptp(pmap_t pmap, vm_offset_t va, vm_page_t m, struct spglist *free)
pdpg = PHYS_TO_VM_PAGE(*pmap_pdpe(pmap, va) & PG_FRAME);
pmap_unwire_ptp(pmap, va, pdpg, free);
}
if (m->pindex >= NUPDE && m->pindex < (NUPDE + NUPDPE)) {
} else if (m->pindex < NUPDE + NUPDPE) {
/* We just released a PD, unhold the matching PDP */
vm_page_t pdppg;