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+.\"
+.\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 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
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.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"
+.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 user pages from the physical map
+.Fa pmap .
+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 Mt bms@spc.org .