6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/param.h>
28 #include <sys/systm.h>
29 #include <sys/kmem.h>
30 #include <sys/user.h>
31 #include <sys/proc.h>
32 #include <sys/cred.h>
33 #include <sys/disp.h>
34 #include <sys/buf.h>
35 #include <sys/vfs.h>
36 #include <sys/vfs_opreg.h>
37 #include <sys/vnode.h>
38 #include <sys/fdio.h>
39 #include <sys/file.h>
40 #include <sys/uio.h>
41 #include <sys/conf.h>
42 #include <sys/statvfs.h>
43 #include <sys/mount.h>
44 #include <sys/pathname.h>
45 #include <sys/cmn_err.h>
139 * Lock hierarchy: pcfslock > pcfs_lock > pcnodes_lock
140 *
141 * pcfs_mountcount: used to prevent module unloads while there is still
142 * pcfs state from a former mount hanging around. With
143 * forced umount support, the filesystem module must not
144 * be allowed to go away before the last VFS_FREEVFS()
145 * call has been made.
146 * Since this is just an atomic counter, there's no need
147 * for locking.
148 */
149 kmutex_t pcfslock;
150 krwlock_t pcnodes_lock;
151 uint32_t pcfs_mountcount;
152
153 static int pcfstype;
154
155 static vfsdef_t vfw = {
156 VFSDEF_VERSION,
157 "pcfs",
158 pcfsinit,
159 VSW_HASPROTO|VSW_CANREMOUNT|VSW_STATS|VSW_CANLOFI,
160 &pcfs_mntopts
161 };
162
163 extern struct mod_ops mod_fsops;
164
165 static struct modlfs modlfs = {
166 &mod_fsops,
167 "PC filesystem",
168 &vfw
169 };
170
171 static struct modlinkage modlinkage = {
172 MODREV_1,
173 &modlfs,
174 NULL
175 };
176
177 int
178 _init(void)
179 {
|
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26 /*
27 * Copyright (c) 2017 by Delphix. All rights reserved.
28 */
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kmem.h>
33 #include <sys/user.h>
34 #include <sys/proc.h>
35 #include <sys/cred.h>
36 #include <sys/disp.h>
37 #include <sys/buf.h>
38 #include <sys/vfs.h>
39 #include <sys/vfs_opreg.h>
40 #include <sys/vnode.h>
41 #include <sys/fdio.h>
42 #include <sys/file.h>
43 #include <sys/uio.h>
44 #include <sys/conf.h>
45 #include <sys/statvfs.h>
46 #include <sys/mount.h>
47 #include <sys/pathname.h>
48 #include <sys/cmn_err.h>
142 * Lock hierarchy: pcfslock > pcfs_lock > pcnodes_lock
143 *
144 * pcfs_mountcount: used to prevent module unloads while there is still
145 * pcfs state from a former mount hanging around. With
146 * forced umount support, the filesystem module must not
147 * be allowed to go away before the last VFS_FREEVFS()
148 * call has been made.
149 * Since this is just an atomic counter, there's no need
150 * for locking.
151 */
152 kmutex_t pcfslock;
153 krwlock_t pcnodes_lock;
154 uint32_t pcfs_mountcount;
155
156 static int pcfstype;
157
158 static vfsdef_t vfw = {
159 VFSDEF_VERSION,
160 "pcfs",
161 pcfsinit,
162 VSW_HASPROTO|VSW_CANREMOUNT|VSW_STATS|VSW_CANLOFI|VSW_MOUNTDEV,
163 &pcfs_mntopts
164 };
165
166 extern struct mod_ops mod_fsops;
167
168 static struct modlfs modlfs = {
169 &mod_fsops,
170 "PC filesystem",
171 &vfw
172 };
173
174 static struct modlinkage modlinkage = {
175 MODREV_1,
176 &modlfs,
177 NULL
178 };
179
180 int
181 _init(void)
182 {
|