:pmap_pte_quick(pmap, va)
:register pmap_t pmap;
:vm_offset_t va;
:{
:unsigned pde, newpf;
:/*
: * Check if the appropriate PDE is valid. If not, we're done.
: */
:**A** if ((pde = (unsigned) pmap->pm_pdir[va >> PDRSHIFT]) !=
:0) {
:
Consider the folowing function:
/*
* Super fast pmap_pte routine best used when scanning
* the pv lists. This eliminates many coarse-grained
* invltlb calls. Note that many of the pv list
* scans are across different pmaps. It is very wasteful
* to do an entire invltlb for checking a sing
