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[dragonfly.git] / sys / vfs / hpfs / hpfs_vfsops.c
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1/*-
2 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
3 * 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/fs/hpfs/hpfs_vfsops.c,v 1.3.2.2 2001/12/25 01:44:45 dillon Exp $
41a01a4d 27 * $DragonFly: src/sys/vfs/hpfs/hpfs_vfsops.c,v 1.13 2004/03/01 06:33:20 dillon Exp $
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28 */
29
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/namei.h>
34#include <sys/conf.h>
35#include <sys/proc.h>
36#include <sys/kernel.h>
37#include <sys/vnode.h>
38#include <sys/mount.h>
39#include <sys/buf.h>
40#include <sys/fcntl.h>
41#include <sys/malloc.h>
42
43#include <vm/vm.h>
44#include <vm/vm_param.h>
45#if defined(__NetBSD__)
46#include <vm/vm_prot.h>
47#endif
48#include <vm/vm_page.h>
49#include <vm/vm_object.h>
50#include <vm/vm_extern.h>
7d1b9a3b 51#include <sys/buf2.h>
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52
53#if defined(__NetBSD__)
54#include <miscfs/specfs/specdev.h>
55#endif
56
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57#include "hpfs.h"
58#include "hpfsmount.h"
59#include "hpfs_subr.h"
984263bc 60
08c23b99 61#if defined(__DragonFly__)
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62MALLOC_DEFINE(M_HPFSMNT, "HPFS mount", "HPFS mount structure");
63MALLOC_DEFINE(M_HPFSNO, "HPFS node", "HPFS node structure");
64#endif
65
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66static int hpfs_root (struct mount *, struct vnode **);
67static int hpfs_statfs (struct mount *, struct statfs *,
68 struct thread *);
69static int hpfs_unmount (struct mount *, int, struct thread *);
70static int hpfs_vget (struct mount *mp, ino_t ino,
71 struct vnode **vpp);
72static int hpfs_mountfs (struct vnode *, struct mount *,
73 struct hpfs_args *, struct thread *);
74static int hpfs_vptofh (struct vnode *, struct fid *);
75static int hpfs_fhtovp (struct mount *, struct fid *,
76 struct vnode **);
984263bc 77
08c23b99 78#if !defined(__DragonFly__)
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79static int hpfs_quotactl (struct mount *, int, uid_t, caddr_t,
80 struct proc *);
81static int hpfs_start (struct mount *, int, struct proc *);
82static int hpfs_sync (struct mount *, int, struct ucred *,
83 struct proc *);
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84#endif
85
08c23b99 86#if defined(__DragonFly__)
984263bc 87struct sockaddr;
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88static int hpfs_mount (struct mount *, char *, caddr_t,
89 struct nameidata *, struct thread *);
90static int hpfs_init (struct vfsconf *);
91static int hpfs_checkexp (struct mount *, struct sockaddr *,
92 int *, struct ucred **);
984263bc 93#else /* defined(__NetBSD__) */
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94static int hpfs_mount (struct mount *, const char *, void *,
95 struct nameidata *, struct proc *);
96static void hpfs_init (void);
97static int hpfs_mountroot (void);
98static int hpfs_sysctl (int *, u_int, void *, size_t *, void *,
99 size_t, struct proc *);
100static int hpfs_checkexp (struct mount *, struct mbuf *,
101 int *, struct ucred **);
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102#endif
103
104/*ARGSUSED*/
105static int
106hpfs_checkexp(mp, nam, exflagsp, credanonp)
08c23b99 107#if defined(__DragonFly__)
f7aae92f 108 struct mount *mp;
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109 struct sockaddr *nam;
110 int *exflagsp;
111 struct ucred **credanonp;
112#else /* defined(__NetBSD__) */
f7aae92f 113 struct mount *mp;
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114 struct mbuf *nam;
115 int *exflagsp;
116 struct ucred **credanonp;
117#endif
118{
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119 struct netcred *np;
120 struct hpfsmount *hpm = VFSTOHPFS(mp);
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121
122 /*
123 * Get the export permission structure for this <mp, client> tuple.
124 */
125 np = vfs_export_lookup(mp, &hpm->hpm_export, nam);
126 if (np == NULL)
127 return (EACCES);
128
129 *exflagsp = np->netc_exflags;
130 *credanonp = &np->netc_anon;
131 return (0);
132}
133
08c23b99 134#if !defined(__DragonFly__)
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135/*ARGSUSED*/
136static int
7d1b9a3b 137hpfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, td)
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138 int *name;
139 u_int namelen;
140 void *oldp;
141 size_t *oldlenp;
142 void *newp;
143 size_t newlen;
7d1b9a3b 144 struct thread *td;
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145{
146 return (EINVAL);
147}
148
149static int
150hpfs_mountroot()
151{
152 return (EINVAL);
153}
154#endif
155
08c23b99 156#if defined(__DragonFly__)
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157static int
158hpfs_init (
159 struct vfsconf *vcp )
160#else /* defined(__NetBSD__) */
161static void
162hpfs_init ()
163#endif
164{
165 dprintf(("hpfs_init():\n"));
166
167 hpfs_hphashinit();
08c23b99 168#if defined(__DragonFly__)
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169 return 0;
170#endif
171}
172
173static int
174hpfs_mount (
175 struct mount *mp,
08c23b99 176#if defined(__DragonFly__)
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177 char *path,
178 caddr_t data,
179#else /* defined(__NetBSD__) */
180 const char *path,
181 void *data,
182#endif
183 struct nameidata *ndp,
7d1b9a3b 184 struct thread *td )
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185{
186 u_int size;
187 int err = 0;
188 struct vnode *devvp;
189 struct hpfs_args args;
190 struct hpfsmount *hpmp = 0;
191
192 dprintf(("hpfs_mount():\n"));
193 /*
194 ***
195 * Mounting non-root file system or updating a file system
196 ***
197 */
198
199 /* copy in user arguments*/
200 err = copyin(data, (caddr_t)&args, sizeof (struct hpfs_args));
201 if (err)
202 goto error_1; /* can't get arguments*/
203
204 /*
205 * If updating, check whether changing from read-only to
206 * read/write; if there is no device name, that's all we do.
207 */
208 if (mp->mnt_flag & MNT_UPDATE) {
209 dprintf(("hpfs_mount: MNT_UPDATE: "));
210
211 hpmp = VFSTOHPFS(mp);
212
213 if (args.fspec == 0) {
214 dprintf(("export 0x%x\n",args.export.ex_flags));
215 err = vfs_export(mp, &hpmp->hpm_export, &args.export);
216 if (err) {
217 printf("hpfs_mount: vfs_export failed %d\n",
218 err);
219 }
220 goto success;
221 } else {
222 dprintf(("name [FAILED]\n"));
223 err = EINVAL;
224 goto success;
225 }
226 dprintf(("\n"));
227 }
228
229 /*
230 * Not an update, or updating the name: look up the name
231 * and verify that it refers to a sensible block device.
232 */
2b69e610 233 NDINIT(ndp, NAMEI_LOOKUP, CNP_FOLLOW, UIO_USERSPACE, args.fspec, td);
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234 err = namei(ndp);
235 if (err) {
236 /* can't get devvp!*/
237 goto error_1;
238 }
239
240 devvp = ndp->ni_vp;
241
08c23b99 242#if defined(__DragonFly__)
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243 if (!vn_isdisk(devvp, &err))
244 goto error_2;
245#else /* defined(__NetBSD__) */
246 if (devvp->v_type != VBLK) {
247 err = ENOTBLK;
248 goto error_2;
249 }
250 if (major(devvp->v_rdev) >= nblkdev) {
251 err = ENXIO;
252 goto error_2;
253 }
254#endif
255
256 /*
257 ********************
258 * NEW MOUNT
259 ********************
260 */
261
262 /*
263 * Since this is a new mount, we want the names for
264 * the device and the mount point copied in. If an
265 * error occurs, the mountpoint is discarded by the
266 * upper level code.
267 */
268 /* Save "last mounted on" info for mount point (NULL pad)*/
269 copyinstr( path, /* mount point*/
270 mp->mnt_stat.f_mntonname, /* save area*/
271 MNAMELEN - 1, /* max size*/
272 &size); /* real size*/
273 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
274
275 /* Save "mounted from" info for mount point (NULL pad)*/
276 copyinstr( args.fspec, /* device name*/
277 mp->mnt_stat.f_mntfromname, /* save area*/
278 MNAMELEN - 1, /* max size*/
279 &size); /* real size*/
280 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
281
7d1b9a3b 282 err = hpfs_mountfs(devvp, mp, &args, td);
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283 if (err)
284 goto error_2;
285
286 /*
287 * Initialize FS stat information in mount struct; uses both
288 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname
289 *
290 * This code is common to root and non-root mounts
291 */
7d1b9a3b 292 (void)VFS_STATFS(mp, &mp->mnt_stat, td);
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293
294 goto success;
295
296
297error_2: /* error with devvp held*/
298
299 /* release devvp before failing*/
300 vrele(devvp);
301
302error_1: /* no state to back out*/
303
304success:
305 return( err);
306}
307
308/*
309 * Common code for mount and mountroot
310 */
311int
7d1b9a3b 312hpfs_mountfs(devvp, mp, argsp, td)
f7aae92f 313 struct vnode *devvp;
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314 struct mount *mp;
315 struct hpfs_args *argsp;
7d1b9a3b 316 struct thread *td;
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317{
318 int error, ncount, ronly;
319 struct sublock *sup;
320 struct spblock *spp;
321 struct hpfsmount *hpmp;
322 struct buf *bp = NULL;
323 struct vnode *vp;
324 dev_t dev = devvp->v_rdev;
325
326 dprintf(("hpfs_mountfs():\n"));
327 /*
328 * Disallow multiple mounts of the same device.
329 * Disallow mounting of a device that is currently in use
330 * (except for root, which might share swap device for miniroot).
331 * Flush out any old buffers remaining from a previous use.
332 */
333 error = vfs_mountedon(devvp);
334 if (error)
335 return (error);
336 ncount = vcount(devvp);
08c23b99 337#if defined(__DragonFly__)
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338 if (devvp->v_object)
339 ncount -= 1;
340#endif
341 if (ncount > 1 && devvp != rootvp)
342 return (EBUSY);
343
08c23b99 344#if defined(__DragonFly__)
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345 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td);
346 error = vinvalbuf(devvp, V_SAVE, td, 0, 0);
347 VOP__UNLOCK(devvp, 0, td);
984263bc 348#else
7d1b9a3b 349 error = vinvalbuf(devvp, V_SAVE, td, 0, 0);
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350#endif
351 if (error)
352 return (error);
353
354 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
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355 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td);
356 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, td);
357 VOP__UNLOCK(devvp, 0, td);
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358 if (error)
359 return (error);
360
361 /*
362 * Do actual mount
363 */
364 hpmp = malloc(sizeof(struct hpfsmount), M_HPFSMNT, M_WAITOK);
365 bzero(hpmp, sizeof(struct hpfsmount));
366
367 /* Read in SuperBlock */
7d1b9a3b 368 error = bread(devvp, SUBLOCK, SUSIZE, &bp);
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369 if (error)
370 goto failed;
371 bcopy(bp->b_data, &hpmp->hpm_su, sizeof(struct sublock));
372 brelse(bp); bp = NULL;
373
374 /* Read in SpareBlock */
7d1b9a3b 375 error = bread(devvp, SPBLOCK, SPSIZE, &bp);
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376 if (error)
377 goto failed;
378 bcopy(bp->b_data, &hpmp->hpm_sp, sizeof(struct spblock));
379 brelse(bp); bp = NULL;
380
381 sup = &hpmp->hpm_su;
382 spp = &hpmp->hpm_sp;
383
384 /* Check magic */
385 if (sup->su_magic != SU_MAGIC) {
386 printf("hpfs_mountfs: SuperBlock MAGIC DOESN'T MATCH\n");
387 error = EINVAL;
388 goto failed;
389 }
390 if (spp->sp_magic != SP_MAGIC) {
391 printf("hpfs_mountfs: SpareBlock MAGIC DOESN'T MATCH\n");
392 error = EINVAL;
393 goto failed;
394 }
395
396 mp->mnt_data = (qaddr_t)hpmp;
397 hpmp->hpm_devvp = devvp;
398 hpmp->hpm_dev = devvp->v_rdev;
399 hpmp->hpm_mp = mp;
400 hpmp->hpm_uid = argsp->uid;
401 hpmp->hpm_gid = argsp->gid;
402 hpmp->hpm_mode = argsp->mode;
403
404 error = hpfs_bminit(hpmp);
405 if (error)
406 goto failed;
407
408 error = hpfs_cpinit(hpmp, argsp);
409 if (error) {
410 hpfs_bmdeinit(hpmp);
411 goto failed;
412 }
413
414 error = hpfs_root(mp, &vp);
415 if (error) {
416 hpfs_cpdeinit(hpmp);
417 hpfs_bmdeinit(hpmp);
418 goto failed;
419 }
420
421 vput(vp);
422
08c23b99 423#if defined(__DragonFly__)
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424 mp->mnt_stat.f_fsid.val[0] = (long)dev2udev(dev);
425 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
426#else
427 mp->mnt_stat.f_fsid.val[0] = (long)dev;
428 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_HPFS);
429#endif
430 mp->mnt_maxsymlinklen = 0;
431 mp->mnt_flag |= MNT_LOCAL;
432 devvp->v_specmountpoint = mp;
433 return (0);
434
435failed:
436 if (bp)
437 brelse (bp);
438 mp->mnt_data = (qaddr_t)NULL;
08c23b99 439#if defined(__DragonFly__)
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440 devvp->v_specmountpoint = NULL;
441#else
442 devvp->v_specflags &= ~SI_MOUNTEDON;
443#endif
7d1b9a3b 444 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td);
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445 return (error);
446}
447
08c23b99 448#if !defined(__DragonFly__)
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449static int
450hpfs_start (
451 struct mount *mp,
452 int flags,
7d1b9a3b 453 struct thread *td )
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454{
455 return (0);
456}
457#endif
458
459static int
460hpfs_unmount(
461 struct mount *mp,
462 int mntflags,
7d1b9a3b 463 struct thread *td)
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464{
465 int error, flags, ronly;
f7aae92f 466 struct hpfsmount *hpmp = VFSTOHPFS(mp);
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467
468 dprintf(("hpfs_unmount():\n"));
469
470 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
471
472 flags = 0;
473 if(mntflags & MNT_FORCE)
474 flags |= FORCECLOSE;
475
476 dprintf(("hpfs_unmount: vflushing...\n"));
477
478 error = vflush(mp, 0, flags);
479 if (error) {
480 printf("hpfs_unmount: vflush failed: %d\n",error);
481 return (error);
482 }
483
08c23b99 484#if defined(__DragonFly__)
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485 hpmp->hpm_devvp->v_specmountpoint = NULL;
486#else
487 hpmp->hpm_devvp->v_specflags &= ~SI_MOUNTEDON;
488#endif
489
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490 vinvalbuf(hpmp->hpm_devvp, V_SAVE, td, 0, 0);
491 error = VOP_CLOSE(hpmp->hpm_devvp, ronly ? FREAD : FREAD|FWRITE, td);
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492
493 vrele(hpmp->hpm_devvp);
494
495 dprintf(("hpfs_umount: freeing memory...\n"));
496 hpfs_cpdeinit(hpmp);
497 hpfs_bmdeinit(hpmp);
498 mp->mnt_data = (qaddr_t)0;
499 mp->mnt_flag &= ~MNT_LOCAL;
500 FREE(hpmp, M_HPFSMNT);
501
502 return (0);
503}
504
505static int
506hpfs_root(
507 struct mount *mp,
508 struct vnode **vpp )
509{
510 int error = 0;
511 struct hpfsmount *hpmp = VFSTOHPFS(mp);
512
513 dprintf(("hpfs_root():\n"));
514 error = VFS_VGET(mp, (ino_t)hpmp->hpm_su.su_rootfno, vpp);
515 if(error) {
516 printf("hpfs_root: VFS_VGET failed: %d\n",error);
517 return (error);
518 }
519
520 return (error);
521}
522
523static int
524hpfs_statfs(
525 struct mount *mp,
526 struct statfs *sbp,
7d1b9a3b 527 struct thread *td)
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528{
529 struct hpfsmount *hpmp = VFSTOHPFS(mp);
530
531 dprintf(("hpfs_statfs(): HPFS%d.%d\n",
532 hpmp->hpm_su.su_hpfsver, hpmp->hpm_su.su_fnctver));
533
08c23b99 534#if defined(__DragonFly__)
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535 sbp->f_type = mp->mnt_vfc->vfc_typenum;
536#else /* defined(__NetBSD__) */
537 sbp->f_type = 0;
538#endif
539 sbp->f_bsize = DEV_BSIZE;
540 sbp->f_iosize = DEV_BSIZE;
541 sbp->f_blocks = hpmp->hpm_su.su_btotal;
542 sbp->f_bfree = sbp->f_bavail = hpmp->hpm_bavail;
543 sbp->f_ffree = 0;
544 sbp->f_files = 0;
545 if (sbp != &mp->mnt_stat) {
546 bcopy((caddr_t)mp->mnt_stat.f_mntonname,
547 (caddr_t)&sbp->f_mntonname[0], MNAMELEN);
548 bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
549 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
550 }
551 sbp->f_flags = mp->mnt_flag;
552
553 return (0);
554}
555
08c23b99 556#if !defined(__DragonFly__)
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557static int
558hpfs_sync (
559 struct mount *mp,
560 int waitfor,
561 struct ucred *cred,
7d1b9a3b 562 struct thread *td)
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563{
564 return (0);
565}
566
567static int
568hpfs_quotactl (
569 struct mount *mp,
570 int cmds,
571 uid_t uid,
572 caddr_t arg,
7d1b9a3b 573 struct thread *td)
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574{
575 printf("hpfs_quotactl():\n");
576 return (EOPNOTSUPP);
577}
578#endif
579
580/*ARGSUSED*/
581static int
582hpfs_fhtovp(
583 struct mount *mp,
584 struct fid *fhp,
585 struct vnode **vpp)
586{
587 struct vnode *nvp;
588 struct hpfid *hpfhp = (struct hpfid *)fhp;
589 int error;
590
591 if ((error = VFS_VGET(mp, hpfhp->hpfid_ino, &nvp)) != 0) {
592 *vpp = NULLVP;
593 return (error);
594 }
595 /* XXX as unlink/rmdir/mkdir/creat are not currently possible
596 * with HPFS, we don't need to check anything else for now */
597 *vpp = nvp;
598
599 return (0);
600}
601
602static int
603hpfs_vptofh(
604 struct vnode *vp,
605 struct fid *fhp)
606{
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607 struct hpfsnode *hpp;
608 struct hpfid *hpfhp;
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609
610 hpp = VTOHP(vp);
611 hpfhp = (struct hpfid *)fhp;
612 hpfhp->hpfid_len = sizeof(struct hpfid);
613 hpfhp->hpfid_ino = hpp->h_no;
614 /* hpfhp->hpfid_gen = hpp->h_gen; */
615 return (0);
616}
617
618static int
619hpfs_vget(
620 struct mount *mp,
621 ino_t ino,
622 struct vnode **vpp)
623{
624 struct hpfsmount *hpmp = VFSTOHPFS(mp);
625 struct vnode *vp;
626 struct hpfsnode *hp;
627 struct buf *bp;
7d1b9a3b 628 struct thread *td = curthread; /* XXX */
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629 int error;
630
631 dprintf(("hpfs_vget(0x%x): ",ino));
632
633 *vpp = NULL;
634 hp = NULL;
635 vp = NULL;
636
7d1b9a3b 637 if ((*vpp = hpfs_hphashvget(hpmp->hpm_dev, ino, td)) != NULL) {
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638 dprintf(("hashed\n"));
639 return (0);
640 }
641
642 /*
643 * We have to lock node creation for a while,
644 * but then we have to call getnewvnode(),
645 * this may cause hpfs_reclaim() to be called,
646 * this may need to VOP_VGET() parent dir for
647 * update reasons, and if parent is not in
648 * hash, we have to lock node creation...
649 * To solve this, we MALLOC, getnewvnode and init while
650 * not locked (probability of node appearence
651 * at that time is little, and anyway - we'll
652 * check for it).
653 */
654 MALLOC(hp, struct hpfsnode *, sizeof(struct hpfsnode),
655 M_HPFSNO, M_WAITOK);
656
657 error = getnewvnode(VT_HPFS, hpmp->hpm_mp, hpfs_vnodeop_p, &vp);
658 if (error) {
659 printf("hpfs_vget: can't get new vnode\n");
660 FREE(hp, M_HPFSNO);
661 return (error);
662 }
663
664 dprintf(("prenew "));
665
666 vp->v_data = hp;
667
668 if (ino == (ino_t)hpmp->hpm_su.su_rootfno)
669 vp->v_flag |= VROOT;
670
41a01a4d 671 lwkt_token_init(&hp->h_interlock);
377d4740 672 lockinit(&hp->h_lock, 0, "hpnode", VLKTIMEOUT, 0);
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673
674 hp->h_flag = H_INVAL;
675 hp->h_vp = vp;
676 hp->h_hpmp = hpmp;
677 hp->h_no = ino;
678 hp->h_dev = hpmp->hpm_dev;
679 hp->h_uid = hpmp->hpm_uid;
680 hp->h_gid = hpmp->hpm_uid;
681 hp->h_mode = hpmp->hpm_mode;
682 hp->h_devvp = hpmp->hpm_devvp;
683 VREF(hp->h_devvp);
684
7d1b9a3b 685 error = VN_LOCK(vp, LK_EXCLUSIVE, td);
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686 if (error) {
687 vput(vp);
688 return (error);
689 }
690
691 do {
7d1b9a3b 692 if ((*vpp = hpfs_hphashvget(hpmp->hpm_dev, ino, td)) != NULL) {
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693 dprintf(("hashed2\n"));
694 vput(vp);
695 return (0);
696 }
697 } while(LOCKMGR(&hpfs_hphash_lock,LK_EXCLUSIVE|LK_SLEEPFAIL,NULL,NULL));
698
699 hpfs_hphashins(hp);
700
701 LOCKMGR(&hpfs_hphash_lock, LK_RELEASE, NULL, NULL);
702
7d1b9a3b 703 error = bread(hpmp->hpm_devvp, ino, FNODESIZE, &bp);
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704 if (error) {
705 printf("hpfs_vget: can't read ino %d\n",ino);
706 vput(vp);
707 return (error);
708 }
709 bcopy(bp->b_data, &hp->h_fn, sizeof(struct fnode));
710 brelse(bp);
711
712 if (hp->h_fn.fn_magic != FN_MAGIC) {
713 printf("hpfs_vget: MAGIC DOESN'T MATCH\n");
714 vput(vp);
715 return (EINVAL);
716 }
717
718 vp->v_type = hp->h_fn.fn_flag ? VDIR:VREG;
719 hp->h_flag &= ~H_INVAL;
720
721 *vpp = vp;
722
723 return (0);
724}
725
08c23b99 726#if defined(__DragonFly__)
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727static struct vfsops hpfs_vfsops = {
728 hpfs_mount,
729 vfs_stdstart,
730 hpfs_unmount,
731 hpfs_root,
732 vfs_stdquotactl,
733 hpfs_statfs,
734 vfs_stdsync,
735 hpfs_vget,
736 hpfs_fhtovp,
737 hpfs_checkexp,
738 hpfs_vptofh,
739 hpfs_init,
ae61ec9d 740 hpfs_hphash_uninit,
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741 vfs_stdextattrctl,
742};
743VFS_SET(hpfs_vfsops, hpfs, 0);
744#else /* defined(__NetBSD__) */
745extern struct vnodeopv_desc hpfs_vnodeop_opv_desc;
746
747struct vnodeopv_desc *hpfs_vnodeopv_descs[] = {
748 &hpfs_vnodeop_opv_desc,
749 NULL,
750};
751
752struct vfsops hpfs_vfsops = {
753 MOUNT_HPFS,
754 hpfs_mount,
755 hpfs_start,
756 hpfs_unmount,
757 hpfs_root,
758 hpfs_quotactl,
759 hpfs_statfs,
760 hpfs_sync,
761 hpfs_vget,
762 hpfs_fhtovp,
763 hpfs_vptofh,
764 hpfs_init,
765 hpfs_sysctl,
766 hpfs_mountroot,
767 hpfs_checkexp,
768 hpfs_vnodeopv_descs,
769};
770#endif