1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)ffs_vnops.c 8.15 (Berkeley) 5/14/95
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34 * $Id: ffs_vnops.c,v 1.30 1997/09/27 13:40:10 kato Exp $
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34 * $Id: ffs_vnops.c,v 1.31 1997/10/10 18:17:00 phk Exp $ |
35 */ 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/resourcevar.h> 40#include <sys/signalvar.h> 41#include <sys/kernel.h> 42#include <sys/stat.h> 43#include <sys/buf.h> 44#include <sys/proc.h> 45#include <sys/mount.h> 46#include <sys/sysctl.h> 47#include <sys/vnode.h> 48#include <sys/malloc.h> 49 50#include <vm/vm.h> 51#include <vm/vm_prot.h> 52#include <vm/vm_page.h> 53#include <vm/vm_object.h> 54#include <vm/vm_extern.h> 55 56#include <miscfs/specfs/specdev.h> 57#include <miscfs/fifofs/fifo.h> 58 59#include <ufs/ufs/quota.h> 60#include <ufs/ufs/inode.h> 61#include <ufs/ufs/ufsmount.h> 62#include <ufs/ufs/ufs_extern.h> 63 64#include <ufs/ffs/fs.h> 65#include <ufs/ffs/ffs_extern.h> 66 67static int ffs_fsync __P((struct vop_fsync_args *)); 68static int ffs_getpages __P((struct vop_getpages_args *)); 69static int ffs_read __P((struct vop_read_args *)); 70static int ffs_write __P((struct vop_write_args *)); 71 72/* Global vfs data structures for ufs. */ 73vop_t **ffs_vnodeop_p; 74static struct vnodeopv_entry_desc ffs_vnodeop_entries[] = {
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75 { &vop_default_desc, (vop_t *)vn_default_error },
76 { &vop_lookup_desc, (vop_t *)vfs_cache_lookup },/* lookup */
77 { &vop_cachedlookup_desc, (vop_t *)ufs_lookup },/* cachedlookup */
78 { &vop_create_desc, (vop_t *)ufs_create }, /* create */
79 { &vop_whiteout_desc, (vop_t *)ufs_whiteout }, /* whiteout */
80 { &vop_mknod_desc, (vop_t *)ufs_mknod }, /* mknod */
81 { &vop_open_desc, (vop_t *)ufs_open }, /* open */
82 { &vop_close_desc, (vop_t *)ufs_close }, /* close */
83 { &vop_access_desc, (vop_t *)ufs_access }, /* access */
84 { &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
85 { &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
86 { &vop_read_desc, (vop_t *)ffs_read }, /* read */
87 { &vop_write_desc, (vop_t *)ffs_write }, /* write */
88 { &vop_lease_desc, (vop_t *)ufs_lease_check }, /* lease */
89 { &vop_ioctl_desc, (vop_t *)ufs_ioctl }, /* ioctl */
90 { &vop_poll_desc, (vop_t *)ufs_poll }, /* poll */
91 { &vop_revoke_desc, (vop_t *)ufs_revoke }, /* revoke */
92 { &vop_mmap_desc, (vop_t *)ufs_mmap }, /* mmap */
93 { &vop_fsync_desc, (vop_t *)ffs_fsync }, /* fsync */
94 { &vop_seek_desc, (vop_t *)ufs_seek }, /* seek */
95 { &vop_remove_desc, (vop_t *)ufs_remove }, /* remove */
96 { &vop_link_desc, (vop_t *)ufs_link }, /* link */
97 { &vop_rename_desc, (vop_t *)ufs_rename }, /* rename */
98 { &vop_mkdir_desc, (vop_t *)ufs_mkdir }, /* mkdir */
99 { &vop_rmdir_desc, (vop_t *)ufs_rmdir }, /* rmdir */
100 { &vop_symlink_desc, (vop_t *)ufs_symlink }, /* symlink */
101 { &vop_readdir_desc, (vop_t *)ufs_readdir }, /* readdir */
102 { &vop_readlink_desc, (vop_t *)ufs_readlink }, /* readlink */
103 { &vop_abortop_desc, (vop_t *)ufs_abortop }, /* abortop */
104 { &vop_inactive_desc, (vop_t *)ufs_inactive }, /* inactive */
105 { &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
106 { &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
107 { &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
108 { &vop_bmap_desc, (vop_t *)ufs_bmap }, /* bmap */
109 { &vop_strategy_desc, (vop_t *)ufs_strategy }, /* strategy */
110 { &vop_print_desc, (vop_t *)ufs_print }, /* print */
111 { &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
112 { &vop_pathconf_desc, (vop_t *)ufs_pathconf }, /* pathconf */
113 { &vop_advlock_desc, (vop_t *)ufs_advlock }, /* advlock */
114 { &vop_blkatoff_desc, (vop_t *)ffs_blkatoff }, /* blkatoff */
115 { &vop_valloc_desc, (vop_t *)ffs_valloc }, /* valloc */
116 { &vop_reallocblks_desc, (vop_t *)ffs_reallocblks }, /* reallocblks */
117 { &vop_vfree_desc, (vop_t *)ffs_vfree }, /* vfree */
118 { &vop_truncate_desc, (vop_t *)ffs_truncate }, /* truncate */
119 { &vop_update_desc, (vop_t *)ffs_update }, /* update */
120 { &vop_getpages_desc, (vop_t *)ffs_getpages}, /* getpages */
121/* XXX: vop_putpages */
122 { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
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75 { &vop_default_desc, (vop_t *) vn_default_error }, 76 { &vop_abortop_desc, (vop_t *) ufs_abortop }, 77 { &vop_access_desc, (vop_t *) ufs_access }, 78 { &vop_advlock_desc, (vop_t *) ufs_advlock }, 79 { &vop_blkatoff_desc, (vop_t *) ffs_blkatoff }, 80 { &vop_bmap_desc, (vop_t *) ufs_bmap }, 81 { &vop_bwrite_desc, (vop_t *) vn_bwrite }, 82 { &vop_cachedlookup_desc, (vop_t *) ufs_lookup }, 83 { &vop_close_desc, (vop_t *) ufs_close }, 84 { &vop_create_desc, (vop_t *) ufs_create }, 85 { &vop_fsync_desc, (vop_t *) ffs_fsync }, 86 { &vop_getattr_desc, (vop_t *) ufs_getattr }, 87 { &vop_getpages_desc, (vop_t *) ffs_getpages }, 88 { &vop_inactive_desc, (vop_t *) ufs_inactive }, 89 { &vop_ioctl_desc, (vop_t *) ufs_ioctl }, 90 { &vop_islocked_desc, (vop_t *) ufs_islocked }, 91 { &vop_lease_desc, (vop_t *) ufs_lease_check }, 92 { &vop_link_desc, (vop_t *) ufs_link }, 93 { &vop_lock_desc, (vop_t *) ufs_lock }, 94 { &vop_lookup_desc, (vop_t *) vfs_cache_lookup }, 95 { &vop_mkdir_desc, (vop_t *) ufs_mkdir }, 96 { &vop_mknod_desc, (vop_t *) ufs_mknod }, 97 { &vop_mmap_desc, (vop_t *) ufs_mmap }, 98 { &vop_open_desc, (vop_t *) ufs_open }, 99 { &vop_pathconf_desc, (vop_t *) ufs_pathconf }, 100 { &vop_poll_desc, (vop_t *) ufs_poll }, 101 { &vop_print_desc, (vop_t *) ufs_print }, 102 { &vop_read_desc, (vop_t *) ffs_read }, 103 { &vop_readdir_desc, (vop_t *) ufs_readdir }, 104 { &vop_readlink_desc, (vop_t *) ufs_readlink }, 105 { &vop_reallocblks_desc, (vop_t *) ffs_reallocblks }, 106 { &vop_reclaim_desc, (vop_t *) ufs_reclaim }, 107 { &vop_remove_desc, (vop_t *) ufs_remove }, 108 { &vop_rename_desc, (vop_t *) ufs_rename }, 109 { &vop_revoke_desc, (vop_t *) ufs_revoke }, 110 { &vop_rmdir_desc, (vop_t *) ufs_rmdir }, 111 { &vop_seek_desc, (vop_t *) ufs_seek }, 112 { &vop_setattr_desc, (vop_t *) ufs_setattr }, 113 { &vop_strategy_desc, (vop_t *) ufs_strategy }, 114 { &vop_symlink_desc, (vop_t *) ufs_symlink }, 115 { &vop_truncate_desc, (vop_t *) ffs_truncate }, 116 { &vop_unlock_desc, (vop_t *) ufs_unlock }, 117 { &vop_update_desc, (vop_t *) ffs_update }, 118 { &vop_valloc_desc, (vop_t *) ffs_valloc }, 119 { &vop_vfree_desc, (vop_t *) ffs_vfree }, 120 { &vop_whiteout_desc, (vop_t *) ufs_whiteout }, 121 { &vop_write_desc, (vop_t *) ffs_write }, |
122 { NULL, NULL } 123}; 124static struct vnodeopv_desc ffs_vnodeop_opv_desc = 125 { &ffs_vnodeop_p, ffs_vnodeop_entries }; 126 127vop_t **ffs_specop_p; 128static struct vnodeopv_entry_desc ffs_specop_entries[] = {
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130 { &vop_default_desc, (vop_t *)vn_default_error },
131 { &vop_lookup_desc, (vop_t *)spec_lookup }, /* lookup */
132/* XXX: vop_cachedlookup */
133 { &vop_create_desc, (vop_t *)spec_create }, /* create */
134/* XXX: vop_whiteout */
135 { &vop_mknod_desc, (vop_t *)spec_mknod }, /* mknod */
136 { &vop_open_desc, (vop_t *)spec_open }, /* open */
137 { &vop_close_desc, (vop_t *)ufsspec_close }, /* close */
138 { &vop_access_desc, (vop_t *)ufs_access }, /* access */
139 { &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
140 { &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
141 { &vop_read_desc, (vop_t *)ufsspec_read }, /* read */
142 { &vop_write_desc, (vop_t *)ufsspec_write }, /* write */
143 { &vop_lease_desc, (vop_t *)spec_lease_check }, /* lease */
144 { &vop_ioctl_desc, (vop_t *)spec_ioctl }, /* ioctl */
145 { &vop_poll_desc, (vop_t *)spec_poll }, /* poll */
146 { &vop_revoke_desc, (vop_t *)spec_revoke }, /* revoke */
147 { &vop_mmap_desc, (vop_t *)spec_mmap }, /* mmap */
148 { &vop_fsync_desc, (vop_t *)ffs_fsync }, /* fsync */
149 { &vop_seek_desc, (vop_t *)spec_seek }, /* seek */
150 { &vop_remove_desc, (vop_t *)spec_remove }, /* remove */
151 { &vop_link_desc, (vop_t *)spec_link }, /* link */
152 { &vop_rename_desc, (vop_t *)spec_rename }, /* rename */
153 { &vop_mkdir_desc, (vop_t *)spec_mkdir }, /* mkdir */
154 { &vop_rmdir_desc, (vop_t *)spec_rmdir }, /* rmdir */
155 { &vop_symlink_desc, (vop_t *)spec_symlink }, /* symlink */
156 { &vop_readdir_desc, (vop_t *)spec_readdir }, /* readdir */
157 { &vop_readlink_desc, (vop_t *)spec_readlink }, /* readlink */
158 { &vop_abortop_desc, (vop_t *)spec_abortop }, /* abortop */
159 { &vop_inactive_desc, (vop_t *)ufs_inactive }, /* inactive */
160 { &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
161 { &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
162 { &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
163 { &vop_bmap_desc, (vop_t *)spec_bmap }, /* bmap */
164 { &vop_strategy_desc, (vop_t *)spec_strategy }, /* strategy */
165 { &vop_print_desc, (vop_t *)ufs_print }, /* print */
166 { &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
167 { &vop_pathconf_desc, (vop_t *)spec_pathconf }, /* pathconf */
168 { &vop_advlock_desc, (vop_t *)spec_advlock }, /* advlock */
169 { &vop_blkatoff_desc, (vop_t *)spec_blkatoff }, /* blkatoff */
170 { &vop_valloc_desc, (vop_t *)spec_valloc }, /* valloc */
171 { &vop_reallocblks_desc, (vop_t *)spec_reallocblks }, /* reallocblks */
172 { &vop_vfree_desc, (vop_t *)ffs_vfree }, /* vfree */
173 { &vop_truncate_desc, (vop_t *)spec_truncate }, /* truncate */
174 { &vop_update_desc, (vop_t *)ffs_update }, /* update */
175 { &vop_getpages_desc, (vop_t *)spec_getpages}, /* getpages */
176/* XXX: vop_putpages */
177 { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
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129 { &vop_default_desc, (vop_t *) vn_default_error }, 130 { &vop_abortop_desc, (vop_t *) spec_abortop }, 131 { &vop_access_desc, (vop_t *) ufs_access }, 132 { &vop_advlock_desc, (vop_t *) spec_advlock }, 133 { &vop_blkatoff_desc, (vop_t *) spec_blkatoff }, 134 { &vop_bmap_desc, (vop_t *) spec_bmap }, 135 { &vop_bwrite_desc, (vop_t *) vn_bwrite }, 136 { &vop_close_desc, (vop_t *) ufsspec_close }, 137 { &vop_create_desc, (vop_t *) spec_create }, 138 { &vop_fsync_desc, (vop_t *) ffs_fsync }, 139 { &vop_getattr_desc, (vop_t *) ufs_getattr }, 140 { &vop_getpages_desc, (vop_t *) spec_getpages }, 141 { &vop_inactive_desc, (vop_t *) ufs_inactive }, 142 { &vop_ioctl_desc, (vop_t *) spec_ioctl }, 143 { &vop_islocked_desc, (vop_t *) ufs_islocked }, 144 { &vop_lease_desc, (vop_t *) spec_lease_check }, 145 { &vop_link_desc, (vop_t *) spec_link }, 146 { &vop_lock_desc, (vop_t *) ufs_lock }, 147 { &vop_lookup_desc, (vop_t *) spec_lookup }, 148 { &vop_mkdir_desc, (vop_t *) spec_mkdir }, 149 { &vop_mknod_desc, (vop_t *) spec_mknod }, 150 { &vop_mmap_desc, (vop_t *) spec_mmap }, 151 { &vop_open_desc, (vop_t *) spec_open }, 152 { &vop_pathconf_desc, (vop_t *) spec_pathconf }, 153 { &vop_poll_desc, (vop_t *) spec_poll }, 154 { &vop_print_desc, (vop_t *) ufs_print }, 155 { &vop_read_desc, (vop_t *) ufsspec_read }, 156 { &vop_readdir_desc, (vop_t *) spec_readdir }, 157 { &vop_readlink_desc, (vop_t *) spec_readlink }, 158 { &vop_reallocblks_desc, (vop_t *) spec_reallocblks }, 159 { &vop_reclaim_desc, (vop_t *) ufs_reclaim }, 160 { &vop_remove_desc, (vop_t *) spec_remove }, 161 { &vop_rename_desc, (vop_t *) spec_rename }, 162 { &vop_revoke_desc, (vop_t *) spec_revoke }, 163 { &vop_rmdir_desc, (vop_t *) spec_rmdir }, 164 { &vop_seek_desc, (vop_t *) spec_seek }, 165 { &vop_setattr_desc, (vop_t *) ufs_setattr }, 166 { &vop_strategy_desc, (vop_t *) spec_strategy }, 167 { &vop_symlink_desc, (vop_t *) spec_symlink }, 168 { &vop_truncate_desc, (vop_t *) spec_truncate }, 169 { &vop_unlock_desc, (vop_t *) ufs_unlock }, 170 { &vop_update_desc, (vop_t *) ffs_update }, 171 { &vop_valloc_desc, (vop_t *) spec_valloc }, 172 { &vop_vfree_desc, (vop_t *) ffs_vfree }, 173 { &vop_write_desc, (vop_t *) ufsspec_write }, |
174 { NULL, NULL } 175}; 176static struct vnodeopv_desc ffs_specop_opv_desc = 177 { &ffs_specop_p, ffs_specop_entries }; 178 179vop_t **ffs_fifoop_p; 180static struct vnodeopv_entry_desc ffs_fifoop_entries[] = {
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185 { &vop_default_desc, (vop_t *)vn_default_error },
186 { &vop_lookup_desc, (vop_t *)fifo_lookup }, /* lookup */
187/* XXX: vop_cachedlookup */
188 { &vop_create_desc, (vop_t *)fifo_create }, /* create */
189/* XXX: vop_whiteout */
190 { &vop_mknod_desc, (vop_t *)fifo_mknod }, /* mknod */
191 { &vop_open_desc, (vop_t *)fifo_open }, /* open */
192 { &vop_close_desc, (vop_t *)ufsfifo_close }, /* close */
193 { &vop_access_desc, (vop_t *)ufs_access }, /* access */
194 { &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
195 { &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
196 { &vop_read_desc, (vop_t *)ufsfifo_read }, /* read */
197 { &vop_write_desc, (vop_t *)ufsfifo_write }, /* write */
198 { &vop_lease_desc, (vop_t *)fifo_lease_check }, /* lease */
199 { &vop_ioctl_desc, (vop_t *)fifo_ioctl }, /* ioctl */
200 { &vop_poll_desc, (vop_t *)fifo_poll }, /* poll */
201 { &vop_revoke_desc, (vop_t *)fifo_revoke }, /* revoke */
202 { &vop_mmap_desc, (vop_t *)fifo_mmap }, /* mmap */
203 { &vop_fsync_desc, (vop_t *)ffs_fsync }, /* fsync */
204 { &vop_seek_desc, (vop_t *)fifo_seek }, /* seek */
205 { &vop_remove_desc, (vop_t *)fifo_remove }, /* remove */
206 { &vop_link_desc, (vop_t *)fifo_link }, /* link */
207 { &vop_rename_desc, (vop_t *)fifo_rename }, /* rename */
208 { &vop_mkdir_desc, (vop_t *)fifo_mkdir }, /* mkdir */
209 { &vop_rmdir_desc, (vop_t *)fifo_rmdir }, /* rmdir */
210 { &vop_symlink_desc, (vop_t *)fifo_symlink }, /* symlink */
211 { &vop_readdir_desc, (vop_t *)fifo_readdir }, /* readdir */
212 { &vop_readlink_desc, (vop_t *)fifo_readlink }, /* readlink */
213 { &vop_abortop_desc, (vop_t *)fifo_abortop }, /* abortop */
214 { &vop_inactive_desc, (vop_t *)ufs_inactive }, /* inactive */
215 { &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
216 { &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
217 { &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
218 { &vop_bmap_desc, (vop_t *)fifo_bmap }, /* bmap */
219 { &vop_strategy_desc, (vop_t *)fifo_strategy }, /* strategy */
220 { &vop_print_desc, (vop_t *)ufs_print }, /* print */
221 { &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
222 { &vop_pathconf_desc, (vop_t *)fifo_pathconf }, /* pathconf */
223 { &vop_advlock_desc, (vop_t *)fifo_advlock }, /* advlock */
224 { &vop_blkatoff_desc, (vop_t *)fifo_blkatoff }, /* blkatoff */
225 { &vop_valloc_desc, (vop_t *)fifo_valloc }, /* valloc */
226 { &vop_reallocblks_desc, (vop_t *)fifo_reallocblks }, /* reallocblks */
227 { &vop_vfree_desc, (vop_t *)ffs_vfree }, /* vfree */
228 { &vop_truncate_desc, (vop_t *)fifo_truncate }, /* truncate */
229 { &vop_update_desc, (vop_t *)ffs_update }, /* update */
230/* XXX: vop_getpages */
231/* XXX: vop_putpages */
232 { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
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181 { &vop_default_desc, (vop_t *) vn_default_error }, 182 { &vop_abortop_desc, (vop_t *) fifo_abortop }, 183 { &vop_access_desc, (vop_t *) ufs_access }, 184 { &vop_advlock_desc, (vop_t *) fifo_advlock }, 185 { &vop_blkatoff_desc, (vop_t *) fifo_blkatoff }, 186 { &vop_bmap_desc, (vop_t *) fifo_bmap }, 187 { &vop_bwrite_desc, (vop_t *) vn_bwrite }, 188 { &vop_close_desc, (vop_t *) ufsfifo_close }, 189 { &vop_create_desc, (vop_t *) fifo_create }, 190 { &vop_fsync_desc, (vop_t *) ffs_fsync }, 191 { &vop_getattr_desc, (vop_t *) ufs_getattr }, 192 { &vop_inactive_desc, (vop_t *) ufs_inactive }, 193 { &vop_ioctl_desc, (vop_t *) fifo_ioctl }, 194 { &vop_islocked_desc, (vop_t *) ufs_islocked }, 195 { &vop_lease_desc, (vop_t *) fifo_lease_check }, 196 { &vop_link_desc, (vop_t *) fifo_link }, 197 { &vop_lock_desc, (vop_t *) ufs_lock }, 198 { &vop_lookup_desc, (vop_t *) fifo_lookup }, 199 { &vop_mkdir_desc, (vop_t *) fifo_mkdir }, 200 { &vop_mknod_desc, (vop_t *) fifo_mknod }, 201 { &vop_mmap_desc, (vop_t *) fifo_mmap }, 202 { &vop_open_desc, (vop_t *) fifo_open }, 203 { &vop_pathconf_desc, (vop_t *) fifo_pathconf }, 204 { &vop_poll_desc, (vop_t *) fifo_poll }, 205 { &vop_print_desc, (vop_t *) ufs_print }, 206 { &vop_read_desc, (vop_t *) ufsfifo_read }, 207 { &vop_readdir_desc, (vop_t *) fifo_readdir }, 208 { &vop_readlink_desc, (vop_t *) fifo_readlink }, 209 { &vop_reallocblks_desc, (vop_t *) fifo_reallocblks }, 210 { &vop_reclaim_desc, (vop_t *) ufs_reclaim }, 211 { &vop_remove_desc, (vop_t *) fifo_remove }, 212 { &vop_rename_desc, (vop_t *) fifo_rename }, 213 { &vop_revoke_desc, (vop_t *) fifo_revoke }, 214 { &vop_rmdir_desc, (vop_t *) fifo_rmdir }, 215 { &vop_seek_desc, (vop_t *) fifo_seek }, 216 { &vop_setattr_desc, (vop_t *) ufs_setattr }, 217 { &vop_strategy_desc, (vop_t *) fifo_strategy }, 218 { &vop_symlink_desc, (vop_t *) fifo_symlink }, 219 { &vop_truncate_desc, (vop_t *) fifo_truncate }, 220 { &vop_unlock_desc, (vop_t *) ufs_unlock }, 221 { &vop_update_desc, (vop_t *) ffs_update }, 222 { &vop_valloc_desc, (vop_t *) fifo_valloc }, 223 { &vop_vfree_desc, (vop_t *) ffs_vfree }, 224 { &vop_write_desc, (vop_t *) ufsfifo_write }, |
225 { NULL, NULL } 226}; 227static struct vnodeopv_desc ffs_fifoop_opv_desc = 228 { &ffs_fifoop_p, ffs_fifoop_entries }; 229 230VNODEOP_SET(ffs_vnodeop_opv_desc); 231VNODEOP_SET(ffs_specop_opv_desc); 232VNODEOP_SET(ffs_fifoop_opv_desc); 233 234SYSCTL_NODE(_vfs, MOUNT_UFS, ffs, CTLFLAG_RW, 0, "FFS filesystem"); 235 236#include <ufs/ufs/ufs_readwrite.c> 237 238/* 239 * Synch an open file. 240 */ 241/* ARGSUSED */ 242static int 243ffs_fsync(ap) 244 struct vop_fsync_args /* { 245 struct vnode *a_vp; 246 struct ucred *a_cred; 247 int a_waitfor; 248 struct proc *a_p; 249 } */ *ap; 250{ 251 register struct vnode *vp = ap->a_vp; 252 register struct buf *bp; 253 struct timeval tv; 254 struct buf *nbp; 255 int pass; 256 int s; 257 258 pass = 0; 259 /* 260 * Flush all dirty buffers associated with a vnode. 261 */ 262loop: 263 s = splbio(); 264 for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 265 nbp = bp->b_vnbufs.le_next; 266 if ((bp->b_flags & B_BUSY) || (pass == 0 && (bp->b_blkno < 0))) 267 continue; 268 if ((bp->b_flags & B_DELWRI) == 0) 269 panic("ffs_fsync: not dirty"); 270 271 if (bp->b_vp != vp || ap->a_waitfor != MNT_NOWAIT) { 272 273 bremfree(bp); 274 bp->b_flags |= B_BUSY; 275 splx(s); 276 /* 277 * Wait for I/O associated with indirect blocks to complete, 278 * since there is no way to quickly wait for them below. 279 */ 280 if (bp->b_vp == vp || ap->a_waitfor == MNT_NOWAIT) 281 (void) bawrite(bp); 282 else 283 (void) bwrite(bp); 284 } else { 285 vfs_bio_awrite(bp); 286 splx(s); 287 } 288 goto loop; 289 } 290 splx(s); 291 292 if (pass == 0) { 293 pass = 1; 294 goto loop; 295 } 296 297 if (ap->a_waitfor == MNT_WAIT) { 298 s = splbio(); 299 while (vp->v_numoutput) { 300 vp->v_flag |= VBWAIT; 301 (void) tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "ffsfsn", 0); 302 } 303 splx(s); 304#ifdef DIAGNOSTIC 305 if (vp->v_dirtyblkhd.lh_first) { 306 vprint("ffs_fsync: dirty", vp); 307 goto loop; 308 } 309#endif 310 } 311 312 gettime(&tv); 313 return (VOP_UPDATE(ap->a_vp, &tv, &tv, ap->a_waitfor == MNT_WAIT)); 314} 315
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