| vm_mmap.c (134615) | vm_mmap.c (135727) |
|---|---|
| 1/* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1991, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. --- 27 unchanged lines hidden (view full) --- 36 * @(#)vm_mmap.c 8.4 (Berkeley) 1/12/94 37 */ 38 39/* 40 * Mapped file (mmap) interface to VM 41 */ 42 43#include <sys/cdefs.h> | 1/* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1991, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. --- 27 unchanged lines hidden (view full) --- 36 * @(#)vm_mmap.c 8.4 (Berkeley) 1/12/94 37 */ 38 39/* 40 * Mapped file (mmap) interface to VM 41 */ 42 43#include <sys/cdefs.h> |
| 44__FBSDID("$FreeBSD: head/sys/vm/vm_mmap.c 134615 2004-09-01 19:58:37Z alc $"); | 44__FBSDID("$FreeBSD: head/sys/vm/vm_mmap.c 135727 2004-09-24 08:32:36Z phk $"); |
| 45 46#include "opt_compat.h" 47#include "opt_mac.h" 48 49#include <sys/param.h> 50#include <sys/systm.h> 51#include <sys/kernel.h> 52#include <sys/lock.h> --- 1036 unchanged lines hidden (view full) --- 1089 vget(vp, LK_EXCLUSIVE, td); 1090 } 1091 type = OBJT_VNODE; 1092 handle = vp; 1093 } else if (vp->v_type == VCHR) { 1094 type = OBJT_DEVICE; 1095 handle = vp->v_rdev; 1096 | 45 46#include "opt_compat.h" 47#include "opt_mac.h" 48 49#include <sys/param.h> 50#include <sys/systm.h> 51#include <sys/kernel.h> 52#include <sys/lock.h> --- 1036 unchanged lines hidden (view full) --- 1089 vget(vp, LK_EXCLUSIVE, td); 1090 } 1091 type = OBJT_VNODE; 1092 handle = vp; 1093 } else if (vp->v_type == VCHR) { 1094 type = OBJT_DEVICE; 1095 handle = vp->v_rdev; 1096 |
| 1097 /* XXX: lack thredref on device */ |
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| 1097 if(vp->v_rdev->si_devsw->d_flags & D_MMAP_ANON) { 1098 *maxprotp = VM_PROT_ALL; 1099 *flagsp |= MAP_ANON; 1100 error = 0; 1101 goto done; 1102 } 1103 /* 1104 * cdevs does not provide private mappings of any kind. --- 196 unchanged lines hidden --- | 1098 if(vp->v_rdev->si_devsw->d_flags & D_MMAP_ANON) { 1099 *maxprotp = VM_PROT_ALL; 1100 *flagsp |= MAP_ANON; 1101 error = 0; 1102 goto done; 1103 } 1104 /* 1105 * cdevs does not provide private mappings of any kind. --- 196 unchanged lines hidden --- |