Manual Pages — PMAP_PAGE_EXISTS_QUICK
– determine if a page exists in a physical map
pmap_page_exists_quick(pmap_t pmap, vm_page_t m)
function is used to quickly determine if the page
exists in the physical map
It is typically called from the VM paging code.
The PV count used above may be changed upwards or downwards in future;
it is only necessary that
be returned for a small subset of pmaps for proper page aging.
only if the PV entry for the physical map
is one of the first 16 PVs linked from the page
This manual page was written by
Bruce M Simpson <Mt email@example.com>.
||July 21, 2003
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