pmap_zero_area(9) zero-fill a page using machine-dependent optimizations

Other Alias

pmap_zero_page, pmap_zero_idle


In sys/param.h In vm/vm.h In vm/pmap.h Ft void Fn pmap_zero_page vm_page_t m Ft void Fn pmap_zero_page_area vm_page_t m int off int size Ft void Fn pmap_zero_page_idle vm_page_t m


The Fn pmap_zero_page function zero-fills an entire page using machine-dependent optimizations. The Fn pmap_zero_page_area function is used to zero-fill an area of a page. The range specified must not cross a page boundary; it must be contained entirely within a single page.

The Fn pmap_zero_page_idle interface is used by the vm_pagezero process. The system-wide Giant lock should not be required to be held in order to call this interface.


This function is required to be implemented for each architecture supported by Fx .


This manual page was written by An Bruce M Simpson Aq [email protected] .