1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 1996 Doug Rabson 4.\" 5.\" All rights reserved. 6.\" 7.\" This program is free software. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 19.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 22.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28.\" 29.\" $FreeBSD: src/share/man/man9/VOP_MMAP.9,v 1.4 1999/08/28 00:21:14 peter Exp $ 30.\" $DragonFly: src/share/man/man9/VOP_MMAP.9,v 1.2 2003/06/17 04:37:01 dillon Exp $ 31.\" 32.Dd July 24, 1996 33.Os 34.Dt VOP_MMAP 9 35.Sh NAME 36.Nm VOP_MMAP 37.Nd map a file into memory 38.Sh SYNOPSIS 39.Fd #include <sys/param.h> 40.Fd #include <sys/vnode.h> 41.Ft int 42.Fn VOP_MMAP "struct vnode *vp" "int fflags" "struct ucred *cred" "struct proc *p" 43.Sh DESCRIPTION 44Map the contents of a file into memory using the VM system. 45.Pp 46Its arguments are: 47.Bl -tag -width fflags 48.It Ar vp 49the vnode of the file 50.It Ar fflags 51some flags ??? 52.It Ar cred 53the caller's credentials 54.It Ar p 55the calling process 56.El 57.Pp 58Most filesystems do not implement this entry point. 59.Sh PSEUDOCODE 60.Bd -literal 61int 62vop_mmap(struct vnode *vp, int fflags, 63 struct ucred *cred, struct proc *p) 64{ 65 return EINVAL; 66} 67.Ed 68.Sh SEE ALSO 69.Xr vnode 9 70.Sh AUTHORS 71This man page was written by 72.An Doug Rabson . 73