chfs_vfsops.c revision 1.3.2.5 1 1.3.2.5 yamt /* $NetBSD: chfs_vfsops.c,v 1.3.2.5 2013/01/23 00:06:31 yamt Exp $ */
2 1.3.2.2 yamt
3 1.3.2.2 yamt /*-
4 1.3.2.2 yamt * Copyright (c) 2010 Department of Software Engineering,
5 1.3.2.2 yamt * University of Szeged, Hungary
6 1.3.2.2 yamt * Copyright (C) 2010 Tamas Toth <ttoth (at) inf.u-szeged.hu>
7 1.3.2.2 yamt * Copyright (C) 2010 Adam Hoka <ahoka (at) NetBSD.org>
8 1.3.2.2 yamt * All rights reserved.
9 1.3.2.2 yamt *
10 1.3.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation
11 1.3.2.2 yamt * by the Department of Software Engineering, University of Szeged, Hungary
12 1.3.2.2 yamt *
13 1.3.2.2 yamt * Redistribution and use in source and binary forms, with or without
14 1.3.2.2 yamt * modification, are permitted provided that the following conditions
15 1.3.2.2 yamt * are met:
16 1.3.2.2 yamt * 1. Redistributions of source code must retain the above copyright
17 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer.
18 1.3.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright
19 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer in the
20 1.3.2.2 yamt * documentation and/or other materials provided with the distribution.
21 1.3.2.2 yamt *
22 1.3.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 1.3.2.2 yamt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 1.3.2.2 yamt * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 1.3.2.2 yamt * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 1.3.2.2 yamt * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 1.3.2.2 yamt * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 1.3.2.2 yamt * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 1.3.2.2 yamt * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 1.3.2.2 yamt * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 1.3.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 1.3.2.2 yamt * SUCH DAMAGE.
33 1.3.2.2 yamt */
34 1.3.2.2 yamt
35 1.3.2.2 yamt #include <sys/cdefs.h>
36 1.3.2.2 yamt
37 1.3.2.2 yamt #include <sys/param.h>
38 1.3.2.2 yamt #include <sys/types.h>
39 1.3.2.2 yamt #include <sys/kmem.h>
40 1.3.2.2 yamt #include <sys/mount.h>
41 1.3.2.2 yamt #include <sys/stat.h>
42 1.3.2.2 yamt #include <sys/systm.h>
43 1.3.2.2 yamt #include <sys/proc.h>
44 1.3.2.2 yamt #include <sys/module.h>
45 1.3.2.2 yamt #include <sys/namei.h>
46 1.3.2.2 yamt #include <sys/malloc.h>
47 1.3.2.2 yamt #include <sys/fcntl.h>
48 1.3.2.2 yamt #include <sys/conf.h>
49 1.3.2.2 yamt #include <sys/buf.h>
50 1.3.2.2 yamt //XXX needed just for debugging
51 1.3.2.2 yamt #include <sys/fstrans.h>
52 1.3.2.2 yamt #include <sys/sleepq.h>
53 1.3.2.2 yamt #include <sys/lockdebug.h>
54 1.3.2.2 yamt #include <sys/ktrace.h>
55 1.3.2.2 yamt
56 1.3.2.2 yamt #include <uvm/uvm.h>
57 1.3.2.2 yamt #include <uvm/uvm_pager.h>
58 1.3.2.2 yamt #include <ufs/ufs/dir.h>
59 1.3.2.2 yamt #include <ufs/ufs/ufs_extern.h>
60 1.3.2.2 yamt #include <miscfs/genfs/genfs.h>
61 1.3.2.2 yamt #include <miscfs/genfs/genfs_node.h>
62 1.3.2.2 yamt #include <miscfs/specfs/specdev.h>
63 1.3.2.2 yamt #include "chfs.h"
64 1.3.2.2 yamt #include "chfs_args.h"
65 1.3.2.2 yamt
66 1.3.2.2 yamt MODULE(MODULE_CLASS_VFS, chfs, "flash");
67 1.3.2.2 yamt
68 1.3.2.2 yamt /* --------------------------------------------------------------------- */
69 1.3.2.2 yamt /* functions */
70 1.3.2.2 yamt
71 1.3.2.2 yamt static int chfs_mount(struct mount *, const char *, void *, size_t *);
72 1.3.2.2 yamt static int chfs_unmount(struct mount *, int);
73 1.3.2.2 yamt static int chfs_root(struct mount *, struct vnode **);
74 1.3.2.2 yamt static int chfs_vget(struct mount *, ino_t, struct vnode **);
75 1.3.2.2 yamt static int chfs_fhtovp(struct mount *, struct fid *, struct vnode **);
76 1.3.2.2 yamt static int chfs_vptofh(struct vnode *, struct fid *, size_t *);
77 1.3.2.2 yamt static int chfs_start(struct mount *, int);
78 1.3.2.2 yamt static int chfs_statvfs(struct mount *, struct statvfs *);
79 1.3.2.2 yamt static int chfs_sync(struct mount *, int, kauth_cred_t);
80 1.3.2.2 yamt static void chfs_init(void);
81 1.3.2.2 yamt static void chfs_reinit(void);
82 1.3.2.2 yamt static void chfs_done(void);
83 1.3.2.2 yamt static int chfs_snapshot(struct mount *, struct vnode *,
84 1.3.2.2 yamt struct timespec *);
85 1.3.2.2 yamt
86 1.3.2.2 yamt /* --------------------------------------------------------------------- */
87 1.3.2.2 yamt /* structures */
88 1.3.2.2 yamt
89 1.3.2.2 yamt int
90 1.3.2.2 yamt chfs_gop_alloc(struct vnode *vp, off_t off, off_t len, int flags,
91 1.3.2.2 yamt kauth_cred_t cred)
92 1.3.2.2 yamt {
93 1.3.2.2 yamt return (0);
94 1.3.2.2 yamt }
95 1.3.2.2 yamt
96 1.3.2.2 yamt const struct genfs_ops chfs_genfsops = {
97 1.3.2.2 yamt .gop_size = genfs_size,
98 1.3.2.2 yamt .gop_alloc = chfs_gop_alloc,
99 1.3.2.2 yamt .gop_write = genfs_gop_write,
100 1.3.2.2 yamt .gop_markupdate = ufs_gop_markupdate,
101 1.3.2.2 yamt };
102 1.3.2.2 yamt
103 1.3.2.2 yamt struct pool chfs_inode_pool;
104 1.3.2.2 yamt
105 1.3.2.2 yamt /* for looking up the major for flash */
106 1.3.2.2 yamt extern const struct cdevsw flash_cdevsw;
107 1.3.2.2 yamt
108 1.3.2.2 yamt /* --------------------------------------------------------------------- */
109 1.3.2.2 yamt
110 1.3.2.2 yamt static int
111 1.3.2.2 yamt chfs_mount(struct mount *mp,
112 1.3.2.2 yamt const char *path, void *data, size_t *data_len)
113 1.3.2.2 yamt {
114 1.3.2.2 yamt struct lwp *l = curlwp;
115 1.3.2.2 yamt struct nameidata nd;
116 1.3.2.2 yamt struct pathbuf *pb;
117 1.3.2.2 yamt struct vnode *devvp = NULL;
118 1.3.2.2 yamt struct ufs_args *args = data;
119 1.3.2.2 yamt struct ufsmount *ump = NULL;
120 1.3.2.2 yamt struct chfs_mount *chmp;
121 1.3.2.2 yamt int err = 0;
122 1.3.2.2 yamt int xflags;
123 1.3.2.2 yamt
124 1.3.2.2 yamt dbg("mount()\n");
125 1.3.2.2 yamt
126 1.3.2.2 yamt if (*data_len < sizeof *args)
127 1.3.2.2 yamt return EINVAL;
128 1.3.2.2 yamt
129 1.3.2.2 yamt if (mp->mnt_flag & MNT_GETARGS) {
130 1.3.2.2 yamt ump = VFSTOUFS(mp);
131 1.3.2.2 yamt if (ump == NULL)
132 1.3.2.2 yamt return EIO;
133 1.3.2.2 yamt memset(args, 0, sizeof *args);
134 1.3.2.2 yamt args->fspec = NULL;
135 1.3.2.2 yamt *data_len = sizeof *args;
136 1.3.2.2 yamt return 0;
137 1.3.2.2 yamt }
138 1.3.2.2 yamt
139 1.3.2.2 yamt if (mp->mnt_flag & MNT_UPDATE) {
140 1.3.2.2 yamt /* XXX: There is no support yet to update file system
141 1.3.2.2 yamt * settings. Should be added. */
142 1.3.2.2 yamt
143 1.3.2.2 yamt return ENODEV;
144 1.3.2.2 yamt }
145 1.3.2.2 yamt
146 1.3.2.2 yamt if (args->fspec != NULL) {
147 1.3.2.2 yamt err = pathbuf_copyin(args->fspec, &pb);
148 1.3.2.2 yamt if (err) {
149 1.3.2.2 yamt return err;
150 1.3.2.2 yamt }
151 1.3.2.4 yamt /* Look up the name and verify that it's sane. */
152 1.3.2.2 yamt NDINIT(&nd, LOOKUP, FOLLOW, pb);
153 1.3.2.2 yamt if ((err = namei(&nd)) != 0 )
154 1.3.2.2 yamt return (err);
155 1.3.2.2 yamt devvp = nd.ni_vp;
156 1.3.2.2 yamt
157 1.3.2.4 yamt /* Be sure this is a valid block device */
158 1.3.2.2 yamt if (devvp->v_type != VBLK)
159 1.3.2.2 yamt err = ENOTBLK;
160 1.3.2.2 yamt else if (bdevsw_lookup(devvp->v_rdev) == NULL)
161 1.3.2.2 yamt err = ENXIO;
162 1.3.2.2 yamt }
163 1.3.2.2 yamt
164 1.3.2.2 yamt if (err) {
165 1.3.2.2 yamt vrele(devvp);
166 1.3.2.2 yamt return (err);
167 1.3.2.2 yamt }
168 1.3.2.2 yamt
169 1.3.2.2 yamt if (mp->mnt_flag & MNT_RDONLY)
170 1.3.2.2 yamt xflags = FREAD;
171 1.3.2.2 yamt else
172 1.3.2.2 yamt xflags = FREAD|FWRITE;
173 1.3.2.2 yamt
174 1.3.2.2 yamt err = VOP_OPEN(devvp, xflags, FSCRED);
175 1.3.2.2 yamt if (err)
176 1.3.2.2 yamt goto fail;
177 1.3.2.2 yamt
178 1.3.2.4 yamt /* call CHFS mount function */
179 1.3.2.2 yamt err = chfs_mountfs(devvp, mp);
180 1.3.2.2 yamt if (err) {
181 1.3.2.2 yamt vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
182 1.3.2.2 yamt (void)VOP_CLOSE(devvp, xflags, NOCRED);
183 1.3.2.2 yamt VOP_UNLOCK(devvp);
184 1.3.2.2 yamt goto fail;
185 1.3.2.2 yamt }
186 1.3.2.4 yamt
187 1.3.2.2 yamt ump = VFSTOUFS(mp);
188 1.3.2.2 yamt chmp = ump->um_chfs;
189 1.3.2.2 yamt
190 1.3.2.2 yamt vfs_getnewfsid(mp);
191 1.3.2.2 yamt chmp->chm_fsmp = mp;
192 1.3.2.2 yamt
193 1.3.2.2 yamt return set_statvfs_info(path,
194 1.3.2.2 yamt UIO_USERSPACE, args->fspec,
195 1.3.2.2 yamt UIO_USERSPACE, mp->mnt_op->vfs_name, mp, l);
196 1.3.2.2 yamt
197 1.3.2.2 yamt fail:
198 1.3.2.2 yamt vrele(devvp);
199 1.3.2.2 yamt return (err);
200 1.3.2.2 yamt }
201 1.3.2.2 yamt
202 1.3.2.4 yamt /* chfs_mountfs - init CHFS */
203 1.3.2.2 yamt int
204 1.3.2.2 yamt chfs_mountfs(struct vnode *devvp, struct mount *mp)
205 1.3.2.2 yamt {
206 1.3.2.2 yamt struct lwp *l = curlwp;
207 1.3.2.2 yamt struct proc *p;
208 1.3.2.2 yamt kauth_cred_t cred;
209 1.3.2.2 yamt devmajor_t flash_major;
210 1.3.2.2 yamt dev_t dev;
211 1.3.2.2 yamt struct ufsmount* ump = NULL;
212 1.3.2.2 yamt struct chfs_mount* chmp;
213 1.3.2.2 yamt struct vnode *vp;
214 1.3.2.2 yamt int err = 0;
215 1.3.2.2 yamt
216 1.3.2.2 yamt dbg("mountfs()\n");
217 1.3.2.2 yamt
218 1.3.2.2 yamt dev = devvp->v_rdev;
219 1.3.2.2 yamt p = l ? l->l_proc : NULL;
220 1.3.2.2 yamt cred = l ? l->l_cred : NOCRED;
221 1.3.2.2 yamt
222 1.3.2.2 yamt /* Flush out any old buffers remaining from a previous use. */
223 1.3.2.2 yamt vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
224 1.3.2.2 yamt err = vinvalbuf(devvp, V_SAVE, cred, l, 0, 0);
225 1.3.2.2 yamt VOP_UNLOCK(devvp);
226 1.3.2.2 yamt if (err)
227 1.3.2.2 yamt return (err);
228 1.3.2.2 yamt
229 1.3.2.4 yamt /* Setup device. */
230 1.3.2.2 yamt flash_major = cdevsw_lookup_major(&flash_cdevsw);
231 1.3.2.2 yamt
232 1.3.2.2 yamt if (devvp->v_type != VBLK)
233 1.3.2.2 yamt err = ENOTBLK;
234 1.3.2.2 yamt else if (bdevsw_lookup(dev) == NULL)
235 1.3.2.2 yamt err = ENXIO;
236 1.3.2.2 yamt else if (major(dev) != flash_major) {
237 1.3.2.2 yamt dbg("major(dev): %d, flash_major: %d\n",
238 1.3.2.2 yamt major(dev), flash_major);
239 1.3.2.2 yamt err = ENODEV;
240 1.3.2.2 yamt }
241 1.3.2.2 yamt if (err) {
242 1.3.2.2 yamt vrele(devvp);
243 1.3.2.2 yamt return (err);
244 1.3.2.2 yamt }
245 1.3.2.2 yamt
246 1.3.2.4 yamt /* Connect CHFS to UFS. */
247 1.3.2.3 yamt ump = kmem_zalloc(sizeof(struct ufsmount), KM_SLEEP);
248 1.3.2.3 yamt
249 1.3.2.2 yamt ump->um_fstype = UFS1;
250 1.3.2.3 yamt ump->um_chfs = kmem_zalloc(sizeof(struct chfs_mount), KM_SLEEP);
251 1.3.2.2 yamt mutex_init(&ump->um_lock, MUTEX_DEFAULT, IPL_NONE);
252 1.3.2.2 yamt
253 1.3.2.2 yamt chmp = ump->um_chfs;
254 1.3.2.2 yamt
255 1.3.2.4 yamt /* Initialize erase block handler. */
256 1.3.2.2 yamt chmp->chm_ebh = kmem_alloc(sizeof(struct chfs_ebh), KM_SLEEP);
257 1.3.2.2 yamt
258 1.3.2.2 yamt dbg("[]opening flash: %u\n", (unsigned int)devvp->v_rdev);
259 1.3.2.2 yamt err = ebh_open(chmp->chm_ebh, devvp->v_rdev);
260 1.3.2.2 yamt if (err) {
261 1.3.2.2 yamt dbg("error while opening flash\n");
262 1.3.2.3 yamt goto fail;
263 1.3.2.2 yamt }
264 1.3.2.2 yamt
265 1.3.2.2 yamt //TODO check flash sizes
266 1.3.2.2 yamt
267 1.3.2.4 yamt /* Initialize vnode cache's hashtable and eraseblock array. */
268 1.3.2.2 yamt chmp->chm_gbl_version = 0;
269 1.3.2.2 yamt chmp->chm_vnocache_hash = chfs_vnocache_hash_init();
270 1.3.2.2 yamt
271 1.3.2.2 yamt chmp->chm_blocks = kmem_zalloc(chmp->chm_ebh->peb_nr *
272 1.3.2.2 yamt sizeof(struct chfs_eraseblock), KM_SLEEP);
273 1.3.2.2 yamt
274 1.3.2.4 yamt /* Initialize mutexes. */
275 1.3.2.2 yamt mutex_init(&chmp->chm_lock_mountfields, MUTEX_DEFAULT, IPL_NONE);
276 1.3.2.2 yamt mutex_init(&chmp->chm_lock_sizes, MUTEX_DEFAULT, IPL_NONE);
277 1.3.2.2 yamt mutex_init(&chmp->chm_lock_vnocache, MUTEX_DEFAULT, IPL_NONE);
278 1.3.2.2 yamt
279 1.3.2.4 yamt /* Initialize read/write contants. (from UFS) */
280 1.3.2.2 yamt chmp->chm_fs_bmask = -4096;
281 1.3.2.2 yamt chmp->chm_fs_bsize = 4096;
282 1.3.2.2 yamt chmp->chm_fs_qbmask = 4095;
283 1.3.2.2 yamt chmp->chm_fs_bshift = 12;
284 1.3.2.2 yamt chmp->chm_fs_fmask = -2048;
285 1.3.2.2 yamt chmp->chm_fs_qfmask = 2047;
286 1.3.2.2 yamt
287 1.3.2.4 yamt /* Initialize writebuffer. */
288 1.3.2.2 yamt chmp->chm_wbuf_pagesize = chmp->chm_ebh->flash_if->page_size;
289 1.3.2.2 yamt dbg("wbuf size: %zu\n", chmp->chm_wbuf_pagesize);
290 1.3.2.2 yamt chmp->chm_wbuf = kmem_alloc(chmp->chm_wbuf_pagesize, KM_SLEEP);
291 1.3.2.2 yamt rw_init(&chmp->chm_lock_wbuf);
292 1.3.2.2 yamt
293 1.3.2.4 yamt /* Initialize queues. */
294 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_free_queue);
295 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_clean_queue);
296 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_dirty_queue);
297 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_very_dirty_queue);
298 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_erasable_pending_wbuf_queue);
299 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_erase_pending_queue);
300 1.3.2.2 yamt
301 1.3.2.4 yamt /* Initialize flash-specific constants. */
302 1.3.2.2 yamt chfs_calc_trigger_levels(chmp);
303 1.3.2.2 yamt
304 1.3.2.4 yamt /* Initialize sizes. */
305 1.3.2.2 yamt chmp->chm_nr_free_blocks = 0;
306 1.3.2.2 yamt chmp->chm_nr_erasable_blocks = 0;
307 1.3.2.2 yamt chmp->chm_max_vno = 2;
308 1.3.2.2 yamt chmp->chm_checked_vno = 2;
309 1.3.2.2 yamt chmp->chm_unchecked_size = 0;
310 1.3.2.2 yamt chmp->chm_used_size = 0;
311 1.3.2.2 yamt chmp->chm_dirty_size = 0;
312 1.3.2.2 yamt chmp->chm_wasted_size = 0;
313 1.3.2.2 yamt chmp->chm_free_size = chmp->chm_ebh->eb_size * chmp->chm_ebh->peb_nr;
314 1.3.2.4 yamt
315 1.3.2.4 yamt /* Build filesystem. */
316 1.3.2.2 yamt err = chfs_build_filesystem(chmp);
317 1.3.2.2 yamt
318 1.3.2.2 yamt if (err) {
319 1.3.2.4 yamt /* Armageddon and return. */
320 1.3.2.2 yamt chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash);
321 1.3.2.2 yamt ebh_close(chmp->chm_ebh);
322 1.3.2.3 yamt err = EIO;
323 1.3.2.3 yamt goto fail;
324 1.3.2.2 yamt }
325 1.3.2.2 yamt
326 1.3.2.4 yamt /* Initialize UFS. */
327 1.3.2.2 yamt mp->mnt_data = ump;
328 1.3.2.2 yamt mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)dev;
329 1.3.2.2 yamt mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_CHFS);
330 1.3.2.2 yamt mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0];
331 1.3.2.2 yamt mp->mnt_stat.f_namemax = MAXNAMLEN;
332 1.3.2.2 yamt mp->mnt_flag |= MNT_LOCAL;
333 1.3.2.2 yamt mp->mnt_fs_bshift = PAGE_SHIFT;
334 1.3.2.2 yamt mp->mnt_dev_bshift = DEV_BSHIFT;
335 1.3.2.2 yamt mp->mnt_iflag |= IMNT_MPSAFE;
336 1.3.2.2 yamt ump->um_flags = 0;
337 1.3.2.2 yamt ump->um_mountp = mp;
338 1.3.2.2 yamt ump->um_dev = dev;
339 1.3.2.2 yamt ump->um_devvp = devvp;
340 1.3.2.2 yamt ump->um_maxfilesize = 1048512 * 1024;
341 1.3.2.4 yamt
342 1.3.2.4 yamt /* Allocate the root vnode. */
343 1.3.2.2 yamt err = VFS_VGET(mp, CHFS_ROOTINO, &vp);
344 1.3.2.2 yamt if (err) {
345 1.3.2.2 yamt dbg("error: %d while allocating root node\n", err);
346 1.3.2.2 yamt return err;
347 1.3.2.2 yamt }
348 1.3.2.2 yamt vput(vp);
349 1.3.2.2 yamt
350 1.3.2.4 yamt /* Start GC. */
351 1.3.2.2 yamt chfs_gc_thread_start(chmp);
352 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields);
353 1.3.2.2 yamt chfs_gc_trigger(chmp);
354 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields);
355 1.3.2.2 yamt
356 1.3.2.2 yamt devvp->v_specmountpoint = mp;
357 1.3.2.2 yamt return 0;
358 1.3.2.4 yamt
359 1.3.2.3 yamt fail:
360 1.3.2.3 yamt kmem_free(chmp->chm_ebh, sizeof(struct chfs_ebh));
361 1.3.2.3 yamt kmem_free(chmp, sizeof(struct chfs_mount));
362 1.3.2.3 yamt kmem_free(ump, sizeof(struct ufsmount));
363 1.3.2.3 yamt return err;
364 1.3.2.2 yamt }
365 1.3.2.2 yamt
366 1.3.2.2 yamt /* --------------------------------------------------------------------- */
367 1.3.2.2 yamt
368 1.3.2.2 yamt static int
369 1.3.2.2 yamt chfs_unmount(struct mount *mp, int mntflags)
370 1.3.2.2 yamt {
371 1.3.2.2 yamt int flags = 0, i = 0;
372 1.3.2.2 yamt struct ufsmount *ump;
373 1.3.2.2 yamt struct chfs_mount *chmp;
374 1.3.2.2 yamt
375 1.3.2.2 yamt if (mntflags & MNT_FORCE)
376 1.3.2.2 yamt flags |= FORCECLOSE;
377 1.3.2.2 yamt
378 1.3.2.2 yamt dbg("[START]\n");
379 1.3.2.2 yamt
380 1.3.2.2 yamt ump = VFSTOUFS(mp);
381 1.3.2.2 yamt chmp = ump->um_chfs;
382 1.3.2.2 yamt
383 1.3.2.4 yamt /* Stop GC. */
384 1.3.2.2 yamt chfs_gc_thread_stop(chmp);
385 1.3.2.2 yamt
386 1.3.2.4 yamt /* Flush everyt buffer. */
387 1.3.2.2 yamt (void)vflush(mp, NULLVP, flags);
388 1.3.2.2 yamt
389 1.3.2.2 yamt if (chmp->chm_wbuf_len) {
390 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields);
391 1.3.2.2 yamt chfs_flush_pending_wbuf(chmp);
392 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields);
393 1.3.2.2 yamt }
394 1.3.2.2 yamt
395 1.3.2.4 yamt /* Free node references. */
396 1.3.2.2 yamt for (i = 0; i < chmp->chm_ebh->peb_nr; i++) {
397 1.3.2.2 yamt chfs_free_node_refs(&chmp->chm_blocks[i]);
398 1.3.2.2 yamt }
399 1.3.2.2 yamt
400 1.3.2.4 yamt /* Destroy vnode cache hashtable. */
401 1.3.2.2 yamt chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash);
402 1.3.2.2 yamt
403 1.3.2.4 yamt /* Close eraseblock handler. */
404 1.3.2.2 yamt ebh_close(chmp->chm_ebh);
405 1.3.2.2 yamt
406 1.3.2.4 yamt /* Destroy mutexes. */
407 1.3.2.2 yamt rw_destroy(&chmp->chm_lock_wbuf);
408 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_vnocache);
409 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_sizes);
410 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_mountfields);
411 1.3.2.2 yamt
412 1.3.2.4 yamt /* Unmount UFS. */
413 1.3.2.2 yamt if (ump->um_devvp->v_type != VBAD) {
414 1.3.2.2 yamt ump->um_devvp->v_specmountpoint = NULL;
415 1.3.2.2 yamt }
416 1.3.2.2 yamt vn_lock(ump->um_devvp, LK_EXCLUSIVE | LK_RETRY);
417 1.3.2.2 yamt (void)VOP_CLOSE(ump->um_devvp, FREAD|FWRITE, NOCRED);
418 1.3.2.2 yamt vput(ump->um_devvp);
419 1.3.2.2 yamt
420 1.3.2.2 yamt mutex_destroy(&ump->um_lock);
421 1.3.2.2 yamt
422 1.3.2.4 yamt /* Everything done. */
423 1.3.2.3 yamt kmem_free(ump, sizeof(struct ufsmount));
424 1.3.2.2 yamt mp->mnt_data = NULL;
425 1.3.2.2 yamt mp->mnt_flag &= ~MNT_LOCAL;
426 1.3.2.2 yamt dbg("[END]\n");
427 1.3.2.2 yamt return (0);
428 1.3.2.2 yamt }
429 1.3.2.2 yamt
430 1.3.2.2 yamt /* --------------------------------------------------------------------- */
431 1.3.2.2 yamt
432 1.3.2.2 yamt static int
433 1.3.2.2 yamt chfs_root(struct mount *mp, struct vnode **vpp)
434 1.3.2.2 yamt {
435 1.3.2.2 yamt struct vnode *vp;
436 1.3.2.2 yamt int error;
437 1.3.2.2 yamt
438 1.3.2.5 yamt if ((error = VFS_VGET(mp, (ino_t)UFS_ROOTINO, &vp)) != 0)
439 1.3.2.2 yamt return error;
440 1.3.2.2 yamt *vpp = vp;
441 1.3.2.2 yamt return 0;
442 1.3.2.2 yamt }
443 1.3.2.2 yamt
444 1.3.2.2 yamt /* --------------------------------------------------------------------- */
445 1.3.2.2 yamt
446 1.3.2.2 yamt extern rb_tree_ops_t frag_rbtree_ops;
447 1.3.2.2 yamt
448 1.3.2.2 yamt static int
449 1.3.2.2 yamt chfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp)
450 1.3.2.2 yamt {
451 1.3.2.2 yamt struct chfs_mount *chmp;
452 1.3.2.2 yamt struct chfs_inode *ip;
453 1.3.2.2 yamt struct ufsmount *ump;
454 1.3.2.2 yamt struct vnode *vp;
455 1.3.2.2 yamt dev_t dev;
456 1.3.2.2 yamt int error;
457 1.3.2.2 yamt struct chfs_vnode_cache* chvc = NULL;
458 1.3.2.2 yamt struct chfs_node_ref* nref = NULL;
459 1.3.2.2 yamt struct buf *bp;
460 1.3.2.2 yamt
461 1.3.2.2 yamt dbg("vget() | ino: %llu\n", (unsigned long long)ino);
462 1.3.2.2 yamt
463 1.3.2.2 yamt ump = VFSTOUFS(mp);
464 1.3.2.2 yamt dev = ump->um_dev;
465 1.3.2.2 yamt retry:
466 1.3.2.2 yamt if (!vpp) {
467 1.3.2.2 yamt vpp = kmem_alloc(sizeof(struct vnode*), KM_SLEEP);
468 1.3.2.2 yamt }
469 1.3.2.2 yamt
470 1.3.2.4 yamt /* Get node from inode hash. */
471 1.3.2.2 yamt if ((*vpp = chfs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL) {
472 1.3.2.2 yamt return 0;
473 1.3.2.2 yamt }
474 1.3.2.2 yamt
475 1.3.2.2 yamt /* Allocate a new vnode/inode. */
476 1.3.2.2 yamt if ((error = getnewvnode(VT_CHFS,
477 1.3.2.2 yamt mp, chfs_vnodeop_p, NULL, &vp)) != 0) {
478 1.3.2.2 yamt *vpp = NULL;
479 1.3.2.2 yamt return (error);
480 1.3.2.2 yamt }
481 1.3.2.2 yamt ip = pool_get(&chfs_inode_pool, PR_WAITOK);
482 1.3.2.2 yamt
483 1.3.2.2 yamt mutex_enter(&chfs_hashlock);
484 1.3.2.2 yamt if ((*vpp = chfs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL) {
485 1.3.2.2 yamt mutex_exit(&chfs_hashlock);
486 1.3.2.2 yamt ungetnewvnode(vp);
487 1.3.2.2 yamt pool_put(&chfs_inode_pool, ip);
488 1.3.2.2 yamt goto retry;
489 1.3.2.2 yamt }
490 1.3.2.2 yamt
491 1.3.2.2 yamt vp->v_vflag |= VV_LOCKSWORK;
492 1.3.2.2 yamt
493 1.3.2.4 yamt /* Initialize vnode/inode. */
494 1.3.2.2 yamt memset(ip, 0, sizeof(*ip));
495 1.3.2.2 yamt vp->v_data = ip;
496 1.3.2.2 yamt ip->vp = vp;
497 1.3.2.2 yamt ip->ch_type = VTTOCHT(vp->v_type);
498 1.3.2.2 yamt ip->ump = ump;
499 1.3.2.2 yamt ip->chmp = chmp = ump->um_chfs;
500 1.3.2.2 yamt ip->dev = dev;
501 1.3.2.2 yamt ip->ino = ino;
502 1.3.2.2 yamt vp->v_mount = mp;
503 1.3.2.2 yamt genfs_node_init(vp, &chfs_genfsops);
504 1.3.2.2 yamt
505 1.3.2.2 yamt rb_tree_init(&ip->fragtree, &frag_rbtree_ops);
506 1.3.2.2 yamt
507 1.3.2.2 yamt chfs_ihashins(ip);
508 1.3.2.2 yamt mutex_exit(&chfs_hashlock);
509 1.3.2.2 yamt
510 1.3.2.4 yamt /* Set root inode. */
511 1.3.2.2 yamt if (ino == CHFS_ROOTINO) {
512 1.3.2.2 yamt dbg("SETROOT\n");
513 1.3.2.2 yamt vp->v_vflag |= VV_ROOT;
514 1.3.2.2 yamt vp->v_type = VDIR;
515 1.3.2.2 yamt ip->ch_type = CHT_DIR;
516 1.3.2.2 yamt ip->mode = IFMT | IEXEC | IWRITE | IREAD;
517 1.3.2.2 yamt ip->iflag |= (IN_ACCESS | IN_CHANGE | IN_UPDATE);
518 1.3.2.2 yamt chfs_update(vp, NULL, NULL, UPDATE_WAIT);
519 1.3.2.2 yamt TAILQ_INIT(&ip->dents);
520 1.3.2.2 yamt chfs_set_vnode_size(vp, 512);
521 1.3.2.2 yamt }
522 1.3.2.2 yamt
523 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache);
524 1.3.2.2 yamt chvc = chfs_vnode_cache_get(chmp, ino);
525 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_vnocache);
526 1.3.2.2 yamt if (!chvc) {
527 1.3.2.2 yamt dbg("!chvc\n");
528 1.3.2.4 yamt /* Initialize the corresponding vnode cache. */
529 1.3.2.2 yamt /* XXX, we cant alloc under a lock, refactor this! */
530 1.3.2.2 yamt chvc = chfs_vnode_cache_alloc(ino);
531 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache);
532 1.3.2.2 yamt if (ino == CHFS_ROOTINO) {
533 1.3.2.2 yamt chvc->nlink = 2;
534 1.3.2.2 yamt chvc->pvno = CHFS_ROOTINO;
535 1.3.2.4 yamt chvc->state = VNO_STATE_CHECKEDABSENT;
536 1.3.2.2 yamt }
537 1.3.2.2 yamt chfs_vnode_cache_add(chmp, chvc);
538 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_vnocache);
539 1.3.2.2 yamt
540 1.3.2.2 yamt ip->chvc = chvc;
541 1.3.2.2 yamt TAILQ_INIT(&ip->dents);
542 1.3.2.2 yamt } else {
543 1.3.2.2 yamt dbg("chvc\n");
544 1.3.2.2 yamt ip->chvc = chvc;
545 1.3.2.4 yamt /* We had a vnode cache, the node is already on flash, so read it */
546 1.3.2.2 yamt if (ino == CHFS_ROOTINO) {
547 1.3.2.2 yamt chvc->pvno = CHFS_ROOTINO;
548 1.3.2.2 yamt TAILQ_INIT(&chvc->scan_dirents);
549 1.3.2.2 yamt } else {
550 1.3.2.2 yamt chfs_readvnode(mp, ino, &vp);
551 1.3.2.2 yamt }
552 1.3.2.2 yamt
553 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields);
554 1.3.2.4 yamt /* Initialize type specific things. */
555 1.3.2.2 yamt switch (ip->ch_type) {
556 1.3.2.2 yamt case CHT_DIR:
557 1.3.2.4 yamt /* Read every dirent. */
558 1.3.2.2 yamt nref = chvc->dirents;
559 1.3.2.2 yamt while (nref &&
560 1.3.2.2 yamt (struct chfs_vnode_cache *)nref != chvc) {
561 1.3.2.2 yamt chfs_readdirent(mp, nref, ip);
562 1.3.2.2 yamt nref = nref->nref_next;
563 1.3.2.2 yamt }
564 1.3.2.2 yamt chfs_set_vnode_size(vp, 512);
565 1.3.2.2 yamt break;
566 1.3.2.2 yamt case CHT_REG:
567 1.3.2.4 yamt /* FALLTHROUGH */
568 1.3.2.2 yamt case CHT_SOCK:
569 1.3.2.4 yamt /* Collect data. */
570 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n",
571 1.3.2.2 yamt (unsigned long long)ip->ino);
572 1.3.2.2 yamt error = chfs_read_inode(chmp, ip);
573 1.3.2.2 yamt if (error) {
574 1.3.2.2 yamt vput(vp);
575 1.3.2.2 yamt *vpp = NULL;
576 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields);
577 1.3.2.2 yamt return (error);
578 1.3.2.2 yamt }
579 1.3.2.2 yamt break;
580 1.3.2.2 yamt case CHT_LNK:
581 1.3.2.4 yamt /* Collect data. */
582 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n",
583 1.3.2.2 yamt (unsigned long long)ip->ino);
584 1.3.2.2 yamt error = chfs_read_inode_internal(chmp, ip);
585 1.3.2.2 yamt if (error) {
586 1.3.2.2 yamt vput(vp);
587 1.3.2.2 yamt *vpp = NULL;
588 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields);
589 1.3.2.2 yamt return (error);
590 1.3.2.2 yamt }
591 1.3.2.2 yamt
592 1.3.2.4 yamt /* Set link. */
593 1.3.2.2 yamt dbg("size: %llu\n", (unsigned long long)ip->size);
594 1.3.2.2 yamt bp = getiobuf(vp, true);
595 1.3.2.2 yamt bp->b_blkno = 0;
596 1.3.2.2 yamt bp->b_bufsize = bp->b_resid =
597 1.3.2.2 yamt bp->b_bcount = ip->size;
598 1.3.2.2 yamt bp->b_data = kmem_alloc(ip->size, KM_SLEEP);
599 1.3.2.2 yamt chfs_read_data(chmp, vp, bp);
600 1.3.2.2 yamt if (!ip->target)
601 1.3.2.2 yamt ip->target = kmem_alloc(ip->size,
602 1.3.2.2 yamt KM_SLEEP);
603 1.3.2.2 yamt memcpy(ip->target, bp->b_data, ip->size);
604 1.3.2.2 yamt kmem_free(bp->b_data, ip->size);
605 1.3.2.2 yamt putiobuf(bp);
606 1.3.2.2 yamt
607 1.3.2.2 yamt break;
608 1.3.2.2 yamt case CHT_CHR:
609 1.3.2.4 yamt /* FALLTHROUGH */
610 1.3.2.2 yamt case CHT_BLK:
611 1.3.2.4 yamt /* FALLTHROUGH */
612 1.3.2.2 yamt case CHT_FIFO:
613 1.3.2.4 yamt /* Collect data. */
614 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n",
615 1.3.2.2 yamt (unsigned long long)ip->ino);
616 1.3.2.2 yamt error = chfs_read_inode_internal(chmp, ip);
617 1.3.2.2 yamt if (error) {
618 1.3.2.2 yamt vput(vp);
619 1.3.2.2 yamt *vpp = NULL;
620 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields);
621 1.3.2.2 yamt return (error);
622 1.3.2.2 yamt }
623 1.3.2.2 yamt
624 1.3.2.4 yamt /* Set device. */
625 1.3.2.2 yamt bp = getiobuf(vp, true);
626 1.3.2.2 yamt bp->b_blkno = 0;
627 1.3.2.2 yamt bp->b_bufsize = bp->b_resid =
628 1.3.2.2 yamt bp->b_bcount = sizeof(dev_t);
629 1.3.2.2 yamt bp->b_data = kmem_alloc(sizeof(dev_t), KM_SLEEP);
630 1.3.2.2 yamt chfs_read_data(chmp, vp, bp);
631 1.3.2.2 yamt memcpy(&ip->rdev,
632 1.3.2.2 yamt bp->b_data, sizeof(dev_t));
633 1.3.2.2 yamt kmem_free(bp->b_data, sizeof(dev_t));
634 1.3.2.2 yamt putiobuf(bp);
635 1.3.2.4 yamt /* Set specific operations. */
636 1.3.2.2 yamt if (ip->ch_type == CHT_FIFO) {
637 1.3.2.2 yamt vp->v_op = chfs_fifoop_p;
638 1.3.2.2 yamt } else {
639 1.3.2.2 yamt vp->v_op = chfs_specop_p;
640 1.3.2.2 yamt spec_node_init(vp, ip->rdev);
641 1.3.2.2 yamt }
642 1.3.2.2 yamt
643 1.3.2.2 yamt break;
644 1.3.2.2 yamt case CHT_BLANK:
645 1.3.2.4 yamt /* FALLTHROUGH */
646 1.3.2.2 yamt case CHT_BAD:
647 1.3.2.2 yamt break;
648 1.3.2.2 yamt }
649 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields);
650 1.3.2.2 yamt
651 1.3.2.2 yamt }
652 1.3.2.2 yamt
653 1.3.2.4 yamt /* Finish inode initalization. */
654 1.3.2.2 yamt ip->devvp = ump->um_devvp;
655 1.3.2.2 yamt vref(ip->devvp);
656 1.3.2.2 yamt
657 1.3.2.2 yamt uvm_vnp_setsize(vp, ip->size);
658 1.3.2.2 yamt *vpp = vp;
659 1.3.2.2 yamt
660 1.3.2.2 yamt return 0;
661 1.3.2.2 yamt }
662 1.3.2.2 yamt
663 1.3.2.2 yamt /* --------------------------------------------------------------------- */
664 1.3.2.2 yamt
665 1.3.2.2 yamt static int
666 1.3.2.2 yamt chfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp)
667 1.3.2.2 yamt {
668 1.3.2.2 yamt return ENODEV;
669 1.3.2.2 yamt }
670 1.3.2.2 yamt
671 1.3.2.2 yamt /* --------------------------------------------------------------------- */
672 1.3.2.2 yamt
673 1.3.2.2 yamt static int
674 1.3.2.2 yamt chfs_vptofh(struct vnode *vp, struct fid *fhp, size_t *fh_size)
675 1.3.2.2 yamt {
676 1.3.2.2 yamt return ENODEV;
677 1.3.2.2 yamt }
678 1.3.2.2 yamt
679 1.3.2.2 yamt /* --------------------------------------------------------------------- */
680 1.3.2.2 yamt
681 1.3.2.2 yamt static int
682 1.3.2.2 yamt chfs_start(struct mount *mp, int flags)
683 1.3.2.2 yamt {
684 1.3.2.2 yamt return 0;
685 1.3.2.2 yamt }
686 1.3.2.2 yamt
687 1.3.2.2 yamt /* --------------------------------------------------------------------- */
688 1.3.2.2 yamt
689 1.3.2.2 yamt static int
690 1.3.2.2 yamt chfs_statvfs(struct mount *mp, struct statvfs *sbp)
691 1.3.2.2 yamt {
692 1.3.2.2 yamt struct chfs_mount *chmp;
693 1.3.2.2 yamt struct ufsmount *ump;
694 1.3.2.2 yamt dbg("statvfs\n");
695 1.3.2.2 yamt
696 1.3.2.2 yamt ump = VFSTOUFS(mp);
697 1.3.2.2 yamt chmp = ump->um_chfs;
698 1.3.2.2 yamt
699 1.3.2.2 yamt sbp->f_flag = mp->mnt_flag;
700 1.3.2.2 yamt sbp->f_bsize = chmp->chm_ebh->eb_size;
701 1.3.2.2 yamt sbp->f_frsize = chmp->chm_ebh->eb_size;
702 1.3.2.2 yamt sbp->f_iosize = chmp->chm_ebh->eb_size;
703 1.3.2.2 yamt
704 1.3.2.2 yamt sbp->f_blocks = chmp->chm_ebh->peb_nr;
705 1.3.2.2 yamt sbp->f_files = 0;
706 1.3.2.2 yamt sbp->f_bavail = chmp->chm_nr_free_blocks - chmp->chm_resv_blocks_write;
707 1.3.2.2 yamt
708 1.3.2.2 yamt sbp->f_bfree = chmp->chm_nr_free_blocks;
709 1.3.2.2 yamt sbp->f_bresvd = chmp->chm_resv_blocks_write;
710 1.3.2.2 yamt
711 1.3.2.2 yamt /* FFS specific */
712 1.3.2.2 yamt sbp->f_ffree = 0;
713 1.3.2.2 yamt sbp->f_favail = 0;
714 1.3.2.2 yamt sbp->f_fresvd = 0;
715 1.3.2.2 yamt
716 1.3.2.2 yamt copy_statvfs_info(sbp, mp);
717 1.3.2.2 yamt
718 1.3.2.2 yamt return 0;
719 1.3.2.2 yamt }
720 1.3.2.2 yamt
721 1.3.2.2 yamt /* --------------------------------------------------------------------- */
722 1.3.2.2 yamt
723 1.3.2.2 yamt static int
724 1.3.2.2 yamt chfs_sync(struct mount *mp, int waitfor,
725 1.3.2.2 yamt kauth_cred_t uc)
726 1.3.2.2 yamt {
727 1.3.2.2 yamt return 0;
728 1.3.2.2 yamt }
729 1.3.2.2 yamt
730 1.3.2.2 yamt /* --------------------------------------------------------------------- */
731 1.3.2.2 yamt
732 1.3.2.2 yamt static void
733 1.3.2.2 yamt chfs_init(void)
734 1.3.2.2 yamt {
735 1.3.2.4 yamt /* Initialize pools and inode hash. */
736 1.3.2.2 yamt chfs_alloc_pool_caches();
737 1.3.2.2 yamt chfs_ihashinit();
738 1.3.2.2 yamt pool_init(&chfs_inode_pool, sizeof(struct chfs_inode), 0, 0, 0,
739 1.3.2.2 yamt "chfsinopl", &pool_allocator_nointr, IPL_NONE);
740 1.3.2.2 yamt ufs_init();
741 1.3.2.2 yamt }
742 1.3.2.2 yamt
743 1.3.2.2 yamt /* --------------------------------------------------------------------- */
744 1.3.2.2 yamt
745 1.3.2.2 yamt static void
746 1.3.2.2 yamt chfs_reinit(void)
747 1.3.2.2 yamt {
748 1.3.2.2 yamt chfs_ihashreinit();
749 1.3.2.2 yamt ufs_reinit();
750 1.3.2.2 yamt }
751 1.3.2.2 yamt
752 1.3.2.2 yamt /* --------------------------------------------------------------------- */
753 1.3.2.2 yamt
754 1.3.2.2 yamt static void
755 1.3.2.2 yamt chfs_done(void)
756 1.3.2.2 yamt {
757 1.3.2.2 yamt ufs_done();
758 1.3.2.2 yamt chfs_ihashdone();
759 1.3.2.2 yamt pool_destroy(&chfs_inode_pool);
760 1.3.2.2 yamt chfs_destroy_pool_caches();
761 1.3.2.2 yamt }
762 1.3.2.2 yamt
763 1.3.2.2 yamt /* --------------------------------------------------------------------- */
764 1.3.2.2 yamt
765 1.3.2.2 yamt static int
766 1.3.2.2 yamt chfs_snapshot(struct mount *mp, struct vnode *vp,
767 1.3.2.2 yamt struct timespec *ctime)
768 1.3.2.2 yamt {
769 1.3.2.2 yamt return ENODEV;
770 1.3.2.2 yamt }
771 1.3.2.2 yamt
772 1.3.2.2 yamt /* --------------------------------------------------------------------- */
773 1.3.2.2 yamt
774 1.3.2.2 yamt /*
775 1.3.2.2 yamt * chfs vfs operations.
776 1.3.2.2 yamt */
777 1.3.2.2 yamt
778 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_fifoop_opv_desc;
779 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_specop_opv_desc;
780 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_vnodeop_opv_desc;
781 1.3.2.2 yamt
782 1.3.2.2 yamt const struct vnodeopv_desc * const chfs_vnodeopv_descs[] = {
783 1.3.2.2 yamt &chfs_fifoop_opv_desc,
784 1.3.2.2 yamt &chfs_specop_opv_desc,
785 1.3.2.2 yamt &chfs_vnodeop_opv_desc,
786 1.3.2.2 yamt NULL,
787 1.3.2.2 yamt };
788 1.3.2.2 yamt
789 1.3.2.2 yamt struct vfsops chfs_vfsops = {
790 1.3.2.2 yamt MOUNT_CHFS, /* vfs_name */
791 1.3.2.2 yamt sizeof (struct chfs_args),
792 1.3.2.2 yamt chfs_mount, /* vfs_mount */
793 1.3.2.2 yamt chfs_start, /* vfs_start */
794 1.3.2.2 yamt chfs_unmount, /* vfs_unmount */
795 1.3.2.2 yamt chfs_root, /* vfs_root */
796 1.3.2.4 yamt ufs_quotactl, /* vfs_quotactl */
797 1.3.2.2 yamt chfs_statvfs, /* vfs_statvfs */
798 1.3.2.2 yamt chfs_sync, /* vfs_sync */
799 1.3.2.2 yamt chfs_vget, /* vfs_vget */
800 1.3.2.2 yamt chfs_fhtovp, /* vfs_fhtovp */
801 1.3.2.2 yamt chfs_vptofh, /* vfs_vptofh */
802 1.3.2.2 yamt chfs_init, /* vfs_init */
803 1.3.2.2 yamt chfs_reinit, /* vfs_reinit */
804 1.3.2.2 yamt chfs_done, /* vfs_done */
805 1.3.2.2 yamt NULL, /* vfs_mountroot */
806 1.3.2.2 yamt chfs_snapshot, /* vfs_snapshot */
807 1.3.2.4 yamt vfs_stdextattrctl, /* vfs_extattrctl */
808 1.3.2.4 yamt (void *)eopnotsupp, /* vfs_suspendctl */
809 1.3.2.2 yamt genfs_renamelock_enter,
810 1.3.2.2 yamt genfs_renamelock_exit,
811 1.3.2.2 yamt (void *)eopnotsupp,
812 1.3.2.2 yamt chfs_vnodeopv_descs,
813 1.3.2.4 yamt 0, /* vfs_refcount */
814 1.3.2.2 yamt { NULL, NULL },
815 1.3.2.2 yamt };
816 1.3.2.2 yamt
817 1.3.2.4 yamt /* For using CHFS as a module. */
818 1.3.2.2 yamt static int
819 1.3.2.2 yamt chfs_modcmd(modcmd_t cmd, void *arg)
820 1.3.2.2 yamt {
821 1.3.2.2 yamt switch (cmd) {
822 1.3.2.2 yamt case MODULE_CMD_INIT:
823 1.3.2.2 yamt return vfs_attach(&chfs_vfsops);
824 1.3.2.2 yamt case MODULE_CMD_FINI:
825 1.3.2.2 yamt return vfs_detach(&chfs_vfsops);
826 1.3.2.2 yamt default:
827 1.3.2.2 yamt return ENOTTY;
828 1.3.2.2 yamt }
829 1.3.2.2 yamt }
830