Copyright (c) 2003 Bruce M Simpson <email@example.com>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
(The comments found at the beginning of the groff file "man9/pmap_page_exists_quick.9freebsd".)
- determine if a page exists in a physical map
Fn 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
Fa 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
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
Fa m .
This manual page was written by
An Bruce M Simpson Aq Mt firstname.lastname@example.org .