FreeBSD-5.3/share/man/man9/pmap_remove.9

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.Dd July 21, 2003
.Dt PMAP_REMOVE 9
.Os
.Sh NAME
.Nm pmap_remove ,
.Nm pmap_remove_all ,
.Nm pmap_remove_pages
.Nd remove pages from a physical map
.Sh SYNOPSIS
.In sys/param.h
.In vm/vm.h
.In vm/pmap.h
.Ft void
.Fn pmap_remove "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva"
.Ft void
.Fn pmap_remove_all "vm_page_t m"
.Ft void
.Fn pmap_remove_pages "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva"
.Sh DESCRIPTION
The
.Fn pmap_remove
function removes the range of addresses between
.Fa sva
and
.Fa eva
from the physical map
.Fa pmap .
If
.Fa eva
is less than
.Fa sva ,
then the result is undefined.
It is assumed that both
.Fa sva
and
.Fa eva
are page-aligned addresses.
.Pp
The
.Fn pmap_remove_all
removes the physical page
.Fa m
from all physical maps in which it resides, and reflects back the modify
bits to the appropriate pager.
.Pp
The
.Fn pmap_remove_pages
function removes all pages from the physical map
.Fa pmap ,
within the range of physical addresses bounded by
.Fa sva
and
.Fa eva .
This function is called when a process exits to run down its address space
more quickly than would be the case for calling
.Fn pmap_remove .
.Sh SEE ALSO
.Fn pmap 9
.Sh AUTHORS
This manual page was written by
.An Bruce M Simpson Aq bms@spc.org .