1.\" 2.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as 9.\" the first lines of this file unmodified other than the possible 10.\" addition of one or more copyright notices. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice(s), this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 16.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18.\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 19.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25.\" DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" 29.Dd July 13, 2001 30.Dt VM_PAGE_WIRE 9 31.Os 32.Sh NAME 33.Nm vm_page_wire , 34.Nm vm_page_unwire 35.Nd "wire and unwire pages" 36.Sh SYNOPSIS 37.In sys/param.h 38.In vm/vm.h 39.In vm/vm_page.h 40.Ft void 41.Fn vm_page_wire "vm_page_t m" 42.Ft void 43.Fn vm_page_unwire "vm_page_t m" "int activate" 44.Sh DESCRIPTION 45The 46.Fn vm_page_wire 47function increments the wire count on a page, and removes it from 48whatever queue it is on. 49.Pp 50The 51.Fn vm_page_unwire 52function releases one of the wirings on the page. 53When 54.Va write_count 55reaches zero the page is placed back onto either the active queue 56(if 57.Fa activate 58is non-zero) or onto the inactive queue (if 59.Fa activate 60is zero). 61If the page is unmanaged 62.Dv ( PG_UNMANAGED 63is set) then the page is left on 64.Dv PQ_NONE . 65.Sh AUTHORS 66This manual page was written by 67.An Chad David Aq davidc@acns.ab.ca . 68