1/* 2 * modified for EXT2FS support in Lites 1.1 3 * 4 * Aug 1995, Godmar Back (gback@cs.utah.edu) 5 * University of Utah, Department of Computer Science 6 */ 7/* 8 * Copyright (c) 1982, 1986, 1989, 1993 9 * The Regents of the University of California. All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)ext2_vnops.c 8.7 (Berkeley) 2/3/94 40 */ 41 42#if !defined(__FreeBSD__) 43#include "fifo.h" 44#include "diagnostic.h" 45#endif 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/resourcevar.h> 50#include <sys/kernel.h> 51#include <sys/stat.h> 52#include <sys/buf.h> 53#include <sys/proc.h> 54#include <sys/mount.h> 55#include <sys/sysctl.h> 56#include <sys/time.h> 57#include <sys/vnode.h> 58 59#include <vm/vm.h> 60#include <vm/vm_extern.h> 61 62#include <miscfs/specfs/specdev.h> 63#include <miscfs/fifofs/fifo.h> 64 65#if !defined(__FreeBSD__) 66#include <ufs/ufs/lockf.h> 67#else 68#include <sys/signalvar.h> 69#endif 70#include <ufs/ufs/quota.h> 71#include <ufs/ufs/inode.h> 72#include <ufs/ufs/ufs_extern.h> 73#include <ufs/ffs/ffs_extern.h> 74 75#include <gnu/ext2fs/ext2_fs_sb.h> 76#include <gnu/ext2fs/fs.h> 77#include <gnu/ext2fs/ext2_extern.h> 78 79static int ext2_fsync __P((struct vop_fsync_args *)); 80static int ext2_read __P((struct vop_read_args *)); 81static int ext2_write __P((struct vop_write_args *)); 82 83/* Global vfs data structures for ufs. */ 84vop_t **ext2_vnodeop_p; 85static struct vnodeopv_entry_desc ext2_vnodeop_entries[] = {
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86 { &vop_default_desc, (vop_t *)vn_default_error },
87 { &vop_lookup_desc, (vop_t *)vfs_cache_lookup }, /* lookup */
88 { &vop_cachedlookup_desc, (vop_t *)ext2_lookup }, /* lookup */
89 { &vop_create_desc, (vop_t *)ufs_create }, /* create */
90 { &vop_mknod_desc, (vop_t *)ufs_mknod }, /* mknod */
91 { &vop_open_desc, (vop_t *)ufs_open }, /* open */
92 { &vop_close_desc, (vop_t *)ufs_close }, /* close */
93 { &vop_access_desc, (vop_t *)ufs_access }, /* access */
94 { &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
95 { &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
96 { &vop_read_desc, (vop_t *)ext2_read }, /* read */
97 { &vop_write_desc, (vop_t *)ext2_write }, /* write */
98 { &vop_ioctl_desc, (vop_t *)ufs_ioctl }, /* ioctl */
99 { &vop_poll_desc, (vop_t *)ufs_poll }, /* poll */
100 { &vop_mmap_desc, (vop_t *)ufs_mmap }, /* mmap */
101 { &vop_fsync_desc, (vop_t *)ext2_fsync }, /* fsync */
102 { &vop_seek_desc, (vop_t *)ufs_seek }, /* seek */
103 { &vop_remove_desc, (vop_t *)ufs_remove }, /* remove */
104 { &vop_link_desc, (vop_t *)ufs_link }, /* link */
105 { &vop_rename_desc, (vop_t *)ufs_rename }, /* rename */
106 { &vop_mkdir_desc, (vop_t *)ufs_mkdir }, /* mkdir */
107 { &vop_rmdir_desc, (vop_t *)ufs_rmdir }, /* rmdir */
108 { &vop_symlink_desc, (vop_t *)ufs_symlink }, /* symlink */
109 { &vop_readdir_desc, (vop_t *)ext2_readdir }, /* readdir */
110 { &vop_readlink_desc, (vop_t *)ufs_readlink }, /* readlink */
111 { &vop_abortop_desc, (vop_t *)ufs_abortop }, /* abortop */
112 { &vop_inactive_desc, (vop_t *)ext2_inactive }, /* inactive */
113 { &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
114 { &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
115 { &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
116 { &vop_bmap_desc, (vop_t *)ufs_bmap }, /* bmap */
117 { &vop_strategy_desc, (vop_t *)ufs_strategy }, /* strategy */
118 { &vop_print_desc, (vop_t *)ufs_print }, /* print */
119 { &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
120 { &vop_pathconf_desc, (vop_t *)ufs_pathconf }, /* pathconf */
121 { &vop_advlock_desc, (vop_t *)ufs_advlock }, /* advlock */
122 { &vop_blkatoff_desc, (vop_t *)ext2_blkatoff }, /* blkatoff */
123 { &vop_valloc_desc, (vop_t *)ext2_valloc }, /* valloc */
124 { &vop_reallocblks_desc, (vop_t *)ext2_reallocblks }, /* reallocblks */
125 { &vop_vfree_desc, (vop_t *)ext2_vfree }, /* vfree */
126 { &vop_truncate_desc, (vop_t *)ext2_truncate }, /* truncate */
127 { &vop_update_desc, (vop_t *)ext2_update }, /* update */
128 { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
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86 { &vop_default_desc, (vop_t *) vn_default_error }, 87 { &vop_abortop_desc, (vop_t *) ufs_abortop }, 88 { &vop_access_desc, (vop_t *) ufs_access }, 89 { &vop_advlock_desc, (vop_t *) ufs_advlock }, 90 { &vop_blkatoff_desc, (vop_t *) ext2_blkatoff }, 91 { &vop_bmap_desc, (vop_t *) ufs_bmap }, 92 { &vop_bwrite_desc, (vop_t *) vn_bwrite }, 93 { &vop_cachedlookup_desc, (vop_t *) ext2_lookup }, 94 { &vop_close_desc, (vop_t *) ufs_close }, 95 { &vop_create_desc, (vop_t *) ufs_create }, 96 { &vop_fsync_desc, (vop_t *) ext2_fsync }, 97 { &vop_getattr_desc, (vop_t *) ufs_getattr }, 98 { &vop_inactive_desc, (vop_t *) ext2_inactive }, 99 { &vop_ioctl_desc, (vop_t *) ufs_ioctl }, 100 { &vop_islocked_desc, (vop_t *) ufs_islocked }, 101 { &vop_link_desc, (vop_t *) ufs_link }, 102 { &vop_lock_desc, (vop_t *) ufs_lock }, 103 { &vop_lookup_desc, (vop_t *) vfs_cache_lookup }, 104 { &vop_mkdir_desc, (vop_t *) ufs_mkdir }, 105 { &vop_mknod_desc, (vop_t *) ufs_mknod }, 106 { &vop_mmap_desc, (vop_t *) ufs_mmap }, 107 { &vop_open_desc, (vop_t *) ufs_open }, 108 { &vop_pathconf_desc, (vop_t *) ufs_pathconf }, 109 { &vop_poll_desc, (vop_t *) ufs_poll }, 110 { &vop_print_desc, (vop_t *) ufs_print }, 111 { &vop_read_desc, (vop_t *) ext2_read }, 112 { &vop_readdir_desc, (vop_t *) ext2_readdir }, 113 { &vop_readlink_desc, (vop_t *) ufs_readlink }, 114 { &vop_reallocblks_desc, (vop_t *) ext2_reallocblks }, 115 { &vop_reclaim_desc, (vop_t *) ufs_reclaim }, 116 { &vop_remove_desc, (vop_t *) ufs_remove }, 117 { &vop_rename_desc, (vop_t *) ufs_rename }, 118 { &vop_rmdir_desc, (vop_t *) ufs_rmdir }, 119 { &vop_seek_desc, (vop_t *) ufs_seek }, 120 { &vop_setattr_desc, (vop_t *) ufs_setattr }, 121 { &vop_strategy_desc, (vop_t *) ufs_strategy }, 122 { &vop_symlink_desc, (vop_t *) ufs_symlink }, 123 { &vop_truncate_desc, (vop_t *) ext2_truncate }, 124 { &vop_unlock_desc, (vop_t *) ufs_unlock }, 125 { &vop_update_desc, (vop_t *) ext2_update }, 126 { &vop_valloc_desc, (vop_t *) ext2_valloc }, 127 { &vop_vfree_desc, (vop_t *) ext2_vfree }, 128 { &vop_write_desc, (vop_t *) ext2_write }, |
129 { NULL, NULL } 130}; 131static struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 132 { &ext2_vnodeop_p, ext2_vnodeop_entries }; 133 134vop_t **ext2_specop_p; 135static struct vnodeopv_entry_desc ext2_specop_entries[] = {
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136 { &vop_default_desc, (vop_t *)vn_default_error },
137 { &vop_lookup_desc, (vop_t *)spec_lookup }, /* lookup */
138/* XXX: vop_cachedlookup */
139 { &vop_create_desc, (vop_t *)spec_create }, /* create */
140 { &vop_mknod_desc, (vop_t *)spec_mknod }, /* mknod */
141 { &vop_open_desc, (vop_t *)spec_open }, /* open */
142 { &vop_close_desc, (vop_t *)ufsspec_close }, /* close */
143 { &vop_access_desc, (vop_t *)ufs_access }, /* access */
144 { &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
145 { &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
146 { &vop_read_desc, (vop_t *)ufsspec_read }, /* read */
147 { &vop_write_desc, (vop_t *)ufsspec_write }, /* write */
148 { &vop_ioctl_desc, (vop_t *)spec_ioctl }, /* ioctl */
149 { &vop_poll_desc, (vop_t *)spec_poll }, /* poll */
150 { &vop_mmap_desc, (vop_t *)spec_mmap }, /* mmap */
151 { &vop_fsync_desc, (vop_t *)ext2_fsync }, /* fsync */
152 { &vop_seek_desc, (vop_t *)spec_seek }, /* seek */
153 { &vop_remove_desc, (vop_t *)spec_remove }, /* remove */
154 { &vop_link_desc, (vop_t *)spec_link }, /* link */
155 { &vop_rename_desc, (vop_t *)spec_rename }, /* rename */
156 { &vop_mkdir_desc, (vop_t *)spec_mkdir }, /* mkdir */
157 { &vop_rmdir_desc, (vop_t *)spec_rmdir }, /* rmdir */
158 { &vop_symlink_desc, (vop_t *)spec_symlink }, /* symlink */
159 { &vop_readdir_desc, (vop_t *)spec_readdir }, /* readdir */
160 { &vop_readlink_desc, (vop_t *)spec_readlink }, /* readlink */
161 { &vop_abortop_desc, (vop_t *)spec_abortop }, /* abortop */
162 { &vop_inactive_desc, (vop_t *)ext2_inactive }, /* inactive */
163 { &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
164 { &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
165 { &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
166 { &vop_bmap_desc, (vop_t *)spec_bmap }, /* bmap */
167 { &vop_strategy_desc, (vop_t *)spec_strategy }, /* strategy */
168 { &vop_print_desc, (vop_t *)ufs_print }, /* print */
169 { &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
170 { &vop_pathconf_desc, (vop_t *)spec_pathconf }, /* pathconf */
171 { &vop_advlock_desc, (vop_t *)spec_advlock }, /* advlock */
172 { &vop_blkatoff_desc, (vop_t *)spec_blkatoff }, /* blkatoff */
173 { &vop_valloc_desc, (vop_t *)spec_valloc }, /* valloc */
174 { &vop_reallocblks_desc, (vop_t *)spec_reallocblks }, /* reallocblks */
175 { &vop_vfree_desc, (vop_t *)ext2_vfree }, /* vfree */
176 { &vop_truncate_desc, (vop_t *)spec_truncate }, /* truncate */
177 { &vop_update_desc, (vop_t *)ext2_update }, /* update */
178 { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
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136 { &vop_default_desc, (vop_t *) vn_default_error }, 137 { &vop_abortop_desc, (vop_t *) spec_abortop }, 138 { &vop_access_desc, (vop_t *) ufs_access }, 139 { &vop_advlock_desc, (vop_t *) spec_advlock }, 140 { &vop_blkatoff_desc, (vop_t *) spec_blkatoff }, 141 { &vop_bmap_desc, (vop_t *) spec_bmap }, 142 { &vop_bwrite_desc, (vop_t *) vn_bwrite }, 143 { &vop_close_desc, (vop_t *) ufsspec_close }, 144 { &vop_create_desc, (vop_t *) spec_create }, 145 { &vop_fsync_desc, (vop_t *) ext2_fsync }, 146 { &vop_getattr_desc, (vop_t *) ufs_getattr }, 147 { &vop_inactive_desc, (vop_t *) ext2_inactive }, 148 { &vop_ioctl_desc, (vop_t *) spec_ioctl }, 149 { &vop_islocked_desc, (vop_t *) ufs_islocked }, 150 { &vop_link_desc, (vop_t *) spec_link }, 151 { &vop_lock_desc, (vop_t *) ufs_lock }, 152 { &vop_lookup_desc, (vop_t *) spec_lookup }, 153 { &vop_mkdir_desc, (vop_t *) spec_mkdir }, 154 { &vop_mknod_desc, (vop_t *) spec_mknod }, 155 { &vop_mmap_desc, (vop_t *) spec_mmap }, 156 { &vop_open_desc, (vop_t *) spec_open }, 157 { &vop_pathconf_desc, (vop_t *) spec_pathconf }, 158 { &vop_poll_desc, (vop_t *) spec_poll }, 159 { &vop_print_desc, (vop_t *) ufs_print }, 160 { &vop_read_desc, (vop_t *) ufsspec_read }, 161 { &vop_readdir_desc, (vop_t *) spec_readdir }, 162 { &vop_readlink_desc, (vop_t *) spec_readlink }, 163 { &vop_reallocblks_desc, (vop_t *) spec_reallocblks }, 164 { &vop_reclaim_desc, (vop_t *) ufs_reclaim }, 165 { &vop_remove_desc, (vop_t *) spec_remove }, 166 { &vop_rename_desc, (vop_t *) spec_rename }, 167 { &vop_rmdir_desc, (vop_t *) spec_rmdir }, 168 { &vop_seek_desc, (vop_t *) spec_seek }, 169 { &vop_setattr_desc, (vop_t *) ufs_setattr }, 170 { &vop_strategy_desc, (vop_t *) spec_strategy }, 171 { &vop_symlink_desc, (vop_t *) spec_symlink }, 172 { &vop_truncate_desc, (vop_t *) spec_truncate }, 173 { &vop_unlock_desc, (vop_t *) ufs_unlock }, 174 { &vop_update_desc, (vop_t *) ext2_update }, 175 { &vop_valloc_desc, (vop_t *) spec_valloc }, 176 { &vop_vfree_desc, (vop_t *) ext2_vfree }, 177 { &vop_write_desc, (vop_t *) ufsspec_write }, |
178 { NULL, NULL } 179}; 180static struct vnodeopv_desc ext2fs_specop_opv_desc = 181 { &ext2_specop_p, ext2_specop_entries }; 182 183vop_t **ext2_fifoop_p; 184static struct vnodeopv_entry_desc ext2_fifoop_entries[] = {
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186 { &vop_default_desc, (vop_t *)vn_default_error },
187 { &vop_lookup_desc, (vop_t *)fifo_lookup }, /* lookup */
188/* XXX: vop_cachedlookup */
189 { &vop_create_desc, (vop_t *)fifo_create }, /* create */
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_ioctl_desc, (vop_t *)fifo_ioctl }, /* ioctl */
199 { &vop_poll_desc, (vop_t *)fifo_poll }, /* poll */
200 { &vop_mmap_desc, (vop_t *)fifo_mmap }, /* mmap */
201 { &vop_fsync_desc, (vop_t *)ext2_fsync }, /* fsync */
202 { &vop_seek_desc, (vop_t *)fifo_seek }, /* seek */
203 { &vop_remove_desc, (vop_t *)fifo_remove }, /* remove */
204 { &vop_link_desc, (vop_t *)fifo_link }, /* link */
205 { &vop_rename_desc, (vop_t *)fifo_rename }, /* rename */
206 { &vop_mkdir_desc, (vop_t *)fifo_mkdir }, /* mkdir */
207 { &vop_rmdir_desc, (vop_t *)fifo_rmdir }, /* rmdir */
208 { &vop_symlink_desc, (vop_t *)fifo_symlink }, /* symlink */
209 { &vop_readdir_desc, (vop_t *)fifo_readdir }, /* readdir */
210 { &vop_readlink_desc, (vop_t *)fifo_readlink }, /* readlink */
211 { &vop_abortop_desc, (vop_t *)fifo_abortop }, /* abortop */
212 { &vop_inactive_desc, (vop_t *)ext2_inactive }, /* inactive */
213 { &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
214 { &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
215 { &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
216 { &vop_bmap_desc, (vop_t *)fifo_bmap }, /* bmap */
217 { &vop_strategy_desc, (vop_t *)fifo_strategy }, /* strategy */
218 { &vop_print_desc, (vop_t *)ufs_print }, /* print */
219 { &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
220 { &vop_pathconf_desc, (vop_t *)fifo_pathconf }, /* pathconf */
221 { &vop_advlock_desc, (vop_t *)fifo_advlock }, /* advlock */
222 { &vop_blkatoff_desc, (vop_t *)fifo_blkatoff }, /* blkatoff */
223 { &vop_valloc_desc, (vop_t *)fifo_valloc }, /* valloc */
224 { &vop_reallocblks_desc, (vop_t *)fifo_reallocblks }, /* reallocblks */
225 { &vop_vfree_desc, (vop_t *)ext2_vfree }, /* vfree */
226 { &vop_truncate_desc, (vop_t *)fifo_truncate }, /* truncate */
227 { &vop_update_desc, (vop_t *)ext2_update }, /* update */
228 { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
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185 { &vop_default_desc, (vop_t *) vn_default_error }, 186 { &vop_abortop_desc, (vop_t *) fifo_abortop }, 187 { &vop_access_desc, (vop_t *) ufs_access }, 188 { &vop_advlock_desc, (vop_t *) fifo_advlock }, 189 { &vop_blkatoff_desc, (vop_t *) fifo_blkatoff }, 190 { &vop_bmap_desc, (vop_t *) fifo_bmap }, 191 { &vop_bwrite_desc, (vop_t *) vn_bwrite }, 192 { &vop_close_desc, (vop_t *) ufsfifo_close }, 193 { &vop_create_desc, (vop_t *) fifo_create }, 194 { &vop_fsync_desc, (vop_t *) ext2_fsync }, 195 { &vop_getattr_desc, (vop_t *) ufs_getattr }, 196 { &vop_inactive_desc, (vop_t *) ext2_inactive }, 197 { &vop_ioctl_desc, (vop_t *) fifo_ioctl }, 198 { &vop_islocked_desc, (vop_t *) ufs_islocked }, 199 { &vop_link_desc, (vop_t *) fifo_link }, 200 { &vop_lock_desc, (vop_t *) ufs_lock }, 201 { &vop_lookup_desc, (vop_t *) fifo_lookup }, 202 { &vop_mkdir_desc, (vop_t *) fifo_mkdir }, 203 { &vop_mknod_desc, (vop_t *) fifo_mknod }, 204 { &vop_mmap_desc, (vop_t *) fifo_mmap }, 205 { &vop_open_desc, (vop_t *) fifo_open }, 206 { &vop_pathconf_desc, (vop_t *) fifo_pathconf }, 207 { &vop_poll_desc, (vop_t *) fifo_poll }, 208 { &vop_print_desc, (vop_t *) ufs_print }, 209 { &vop_read_desc, (vop_t *) ufsfifo_read }, 210 { &vop_readdir_desc, (vop_t *) fifo_readdir }, 211 { &vop_readlink_desc, (vop_t *) fifo_readlink }, 212 { &vop_reallocblks_desc, (vop_t *) fifo_reallocblks }, 213 { &vop_reclaim_desc, (vop_t *) ufs_reclaim }, 214 { &vop_remove_desc, (vop_t *) fifo_remove }, 215 { &vop_rename_desc, (vop_t *) fifo_rename }, 216 { &vop_rmdir_desc, (vop_t *) fifo_rmdir }, 217 { &vop_seek_desc, (vop_t *) fifo_seek }, 218 { &vop_setattr_desc, (vop_t *) ufs_setattr }, 219 { &vop_strategy_desc, (vop_t *) fifo_strategy }, 220 { &vop_symlink_desc, (vop_t *) fifo_symlink }, 221 { &vop_truncate_desc, (vop_t *) fifo_truncate }, 222 { &vop_unlock_desc, (vop_t *) ufs_unlock }, 223 { &vop_update_desc, (vop_t *) ext2_update }, 224 { &vop_valloc_desc, (vop_t *) fifo_valloc }, 225 { &vop_vfree_desc, (vop_t *) ext2_vfree }, 226 { &vop_write_desc, (vop_t *) ufsfifo_write }, |
227 { NULL, NULL } 228}; 229static struct vnodeopv_desc ext2fs_fifoop_opv_desc = 230 { &ext2_fifoop_p, ext2_fifoop_entries }; 231 232#if defined(__FreeBSD__) 233 VNODEOP_SET(ext2fs_vnodeop_opv_desc); 234 VNODEOP_SET(ext2fs_specop_opv_desc); 235 VNODEOP_SET(ext2fs_fifoop_opv_desc); 236#endif 237 238#include <gnu/ext2fs/ext2_readwrite.c> 239 240/* 241 * Synch an open file. 242 */ 243/* ARGSUSED */ 244static int 245ext2_fsync(ap) 246 struct vop_fsync_args /* { 247 struct vnode *a_vp; 248 struct ucred *a_cred; 249 int a_waitfor; 250 struct proc *a_p; 251 } */ *ap; 252{ 253 register struct vnode *vp = ap->a_vp; 254 register struct buf *bp; 255 struct timeval tv; 256 struct buf *nbp; 257 int s; 258 259 /* 260 * Clean memory object. 261 * XXX add this to all file systems. 262 * XXX why is all this fs specific? 263 */ 264#if !defined(__FreeBSD__) 265 vn_pager_sync(vp, ap->a_waitfor); 266#endif 267 268 /* 269 * Flush all dirty buffers associated with a vnode. 270 */ 271 ext2_discard_prealloc(VTOI(vp)); 272 273loop: 274 s = splbio(); 275 for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 276 nbp = bp->b_vnbufs.le_next; 277 if ((bp->b_flags & B_BUSY)) 278 continue; 279 if ((bp->b_flags & B_DELWRI) == 0) 280 panic("ext2_fsync: not dirty"); 281 bremfree(bp); 282 bp->b_flags |= B_BUSY; 283 splx(s); 284 /* 285 * Wait for I/O associated with indirect blocks to complete, 286 * since there is no way to quickly wait for them below. 287 */ 288 if (bp->b_vp == vp || ap->a_waitfor == MNT_NOWAIT) 289 (void) bawrite(bp); 290 else 291 (void) bwrite(bp); 292 goto loop; 293 } 294 if (ap->a_waitfor == MNT_WAIT) { 295 while (vp->v_numoutput) { 296 vp->v_flag |= VBWAIT; 297#if !defined(__FreeBSD__) 298 sleep((caddr_t)&vp->v_numoutput, PRIBIO + 1); 299#else 300 tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "extfsn", 0); 301#endif 302 } 303#if DIAGNOSTIC 304 if (vp->v_dirtyblkhd.lh_first) { 305 vprint("ext2_fsync: dirty", vp); 306 goto loop; 307 } 308#endif 309 } 310 splx(s); 311 gettime(&tv); 312 return (VOP_UPDATE(ap->a_vp, &tv, &tv, ap->a_waitfor == MNT_WAIT)); 313}
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