1.\" 2.\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd July 21, 2003 29.Dt PMAP_REMOVE 9 30.Os 31.Sh NAME 32.Nm pmap_remove , 33.Nm pmap_remove_all , 34.Nm pmap_remove_pages 35.Nd remove pages from a physical map 36.Sh SYNOPSIS 37.In sys/param.h 38.In vm/vm.h 39.In vm/pmap.h 40.Ft void 41.Fn pmap_remove "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" 42.Ft void 43.Fn pmap_remove_all "vm_page_t m" 44.Ft void 45.Fn pmap_remove_pages "pmap_t pmap" 46.Sh DESCRIPTION 47The 48.Fn pmap_remove 49function removes the range of addresses between 50.Fa sva 51and 52.Fa eva 53from the physical map 54.Fa pmap . 55If 56.Fa eva 57is less than 58.Fa sva , 59then the result is undefined. 60It is assumed that both 61.Fa sva 62and 63.Fa eva 64are page-aligned addresses. 65.Pp 66The 67.Fn pmap_remove_all 68removes the physical page 69.Fa m 70from all physical maps in which it resides, and reflects back the modify 71bits to the appropriate pager. 72.Pp 73The 74.Fn pmap_remove_pages 75function removes all user pages from the physical map 76.Fa pmap . 77This function is called when a process exits to run down its address space 78more quickly than would be the case for calling 79.Fn pmap_remove . 80.Sh SEE ALSO 81.Fn pmap 9 82.Sh AUTHORS 83This manual page was written by 84.An Bruce M Simpson Aq Mt bms@spc.org . 85