xref: /freebsd/share/man/man9/vm_map_madvise.9 (revision 2f1217877e155a8a7de97e74eb7e82096a5ef316)
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 19, 2003
29.Dt VM_MAP_MADVISE 9
30.Os
31.Sh NAME
32.Nm vm_map_madvise
33.Nd apply advice about use of memory to map entries
34.Sh SYNOPSIS
35.In sys/param.h
36.In vm/vm.h
37.In vm/vm_map.h
38.Ft int
39.Fo vm_map_madvise
40.Fa "vm_map_t map" "vm_offset_t start" "vm_offset_t end" "int behav"
41.Fc
42.Sh DESCRIPTION
43The
44.Fn vm_map_madvise
45function applies the flags
46.Fa behav
47to the entries within
48.Fa map
49between
50.Fa start
51and
52.Fa end .
53.Pp
54Advisories are classified as either those affecting the
55.Vt vm_map_entry
56structure, or those affecting the underlying objects.
57.Pp
58The
59.Fn vm_map_madvise
60function is used by the
61.Xr madvise 2
62system call.
63.Sh RETURN VALUES
64The
65.Fn vm_map_madvise
66function returns 0 if successful.
67If the
68.Fa behav
69argument was not recognised,
70.Dv KERN_INVALID_ARGUMENT
71is returned.
72.Sh SEE ALSO
73.Xr madvise 2 ,
74.Xr vm_map 9
75.Sh AUTHORS
76This manual page was written by
77.An Bruce M Simpson Aq Mt bms@spc.org .
78