pmap_page_exists_quick — determine if a page exists in a physical map

       This manual page was written by Bruce M Simpson <bms@spc.org>.

Debian                                            July 21, 2003                        PMAP_PAGE_EXISTS_QUICK(9)

       The  pmap_page_exists_quick()  function is used to quickly determine if the page m exists in the physical
       map pmap.  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 TRUE  be
       returned for a small subset of pmaps for proper page aging.

       pmap_page_exists_quick — determine if a page exists in a physical map

       The  pmap_page_exists_quick()  returns  TRUE only if the PV entry for the physical map pmap is one of the
       first 16 PVs linked from the page m.

pmap(9)

#include<sys/param.h>#include<vm/vm.h>#include<vm/pmap.h>boolean_tpmap_page_exists_quick(pmap_tpmap, vm_page_tm);