1.\" Copyright (c) 1996 Doug Rabson 2.\" 3.\" All rights reserved. 4.\" 5.\" This program is free software. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" 27.\" $FreeBSD: src/share/man/man9/VOP_MMAP.9,v 1.4 1999/08/28 00:21:14 peter Exp $ 28.\" $DragonFly: src/share/man/man9/VOP_MMAP.9,v 1.3 2004/06/01 11:36:53 hmp Exp $ 29.\" 30.Dd July 24, 1996 31.Os 32.Dt VOP_MMAP 9 33.Sh NAME 34.Nm VOP_MMAP 35.Nd map a file into memory 36.Sh SYNOPSIS 37.Fd #include <sys/param.h> 38.Fd #include <sys/vnode.h> 39.Ft int 40.Fn VOP_MMAP "struct vnode *vp" "int fflags" "struct ucred *cred" "struct proc *p" 41.Sh DESCRIPTION 42Map the contents of a file into memory using the VM system. 43.Pp 44Its arguments are: 45.Bl -tag -width fflags 46.It Ar vp 47the vnode of the file 48.It Ar fflags 49some flags ??? 50.It Ar cred 51the caller's credentials 52.It Ar p 53the calling process 54.El 55.Pp 56Most filesystems do not implement this entry point. 57.Sh PSEUDOCODE 58.Bd -literal 59int 60vop_mmap(struct vnode *vp, int fflags, 61 struct ucred *cred, struct proc *p) 62{ 63 return EINVAL; 64} 65.Ed 66.Sh SEE ALSO 67.Xr vnode 9 68.Sh AUTHORS 69This man page was written by 70.An Doug Rabson . 71