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.Dd July 21, 2003 27.Dt PMAP_REMOVE 9 28.Os 29.Sh NAME 30.Nm pmap_remove , 31.Nm pmap_remove_all , 32.Nm pmap_remove_pages 33.Nd remove pages from a physical map 34.Sh SYNOPSIS 35.In sys/param.h 36.In vm/vm.h 37.In vm/pmap.h 38.Ft void 39.Fn pmap_remove "pmap_t pmap" "vm_offset_t sva" "vm_offset_t eva" 40.Ft void 41.Fn pmap_remove_all "vm_page_t m" 42.Ft void 43.Fn pmap_remove_pages "pmap_t pmap" 44.Sh DESCRIPTION 45The 46.Fn pmap_remove 47function removes the range of addresses between 48.Fa sva 49and 50.Fa eva 51from the physical map 52.Fa pmap . 53If 54.Fa eva 55is less than 56.Fa sva , 57then the result is undefined. 58It is assumed that both 59.Fa sva 60and 61.Fa eva 62are page-aligned addresses. 63.Pp 64The 65.Fn pmap_remove_all 66removes the physical page 67.Fa m 68from all physical maps in which it resides, and reflects back the modify 69bits to the appropriate pager. 70.Pp 71The 72.Fn pmap_remove_pages 73function removes all user pages from the physical map 74.Fa pmap . 75This function is called when a process exits to run down its address space 76more quickly than would be the case for calling 77.Fn pmap_remove . 78.Sh SEE ALSO 79.Fn pmap 9 80.Sh AUTHORS 81This manual page was written by 82.An Bruce M Simpson Aq Mt bms@spc.org . 83