---
name: "pmap_is_prefaultable"
section: "9freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "12.2-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/pmap_is_prefaultable/9freebsd"
---

# pmap\_is\_prefaultable(9freebsd)

determine if a page may be prefaulted

## NAME

**pmap\_is\_prefaultable** – determine if a page may be prefaulted

## SYNOPSIS

**#include \<sys/param.h\>**

**#include \<vm/vm.h\>**

**#include \<vm/pmap.h\>**

*boolean\_t*\

**pmap\_is\_prefaultable**(*pmap\_t pmap*, *vm\_offset\_t va*);

## DESCRIPTION

The **pmap\_is\_prefaultable**() function provides a means of determining if the page residing at virtual address *va* in the physical map *pmap* may be pre-faulted into main memory.

This is a helper function which is called by [vm\_fault\_prefault(9)](/vm_fault_prefault/9.md).

## SEE ALSO

[pmap(9)](/pmap/9.md), [vm\_fault\_prefault(9)](/vm_fault_prefault/9.md)

## AUTHORS

This manual page was written by Bruce M Simpson ⟨*bms@spc.org*⟩.