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 $ 27 * $DragonFly: src/sys/vfs/hpfs/hpfs_vfsops.c,v 1.25 2004/12/29 02:42:15 dillon Exp $ 28 */ 29 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/nlookup.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> 51 #include <sys/buf2.h> 52 53 #if defined(__NetBSD__) 54 #include <miscfs/specfs/specdev.h> 55 #endif 56 57 #include "hpfs.h" 58 #include "hpfsmount.h" 59 #include "hpfs_subr.h" 60 61 extern struct vnodeopv_entry_desc hpfs_vnodeop_entries[]; 62 63 #if defined(__DragonFly__) 64 MALLOC_DEFINE(M_HPFSMNT, "HPFS mount", "HPFS mount structure"); 65 MALLOC_DEFINE(M_HPFSNO, "HPFS node", "HPFS node structure"); 66 #endif 67 68 static int hpfs_root (struct mount *, struct vnode **); 69 static int hpfs_statfs (struct mount *, struct statfs *, 70 struct thread *); 71 static int hpfs_unmount (struct mount *, int, struct thread *); 72 static int hpfs_vget (struct mount *mp, ino_t ino, 73 struct vnode **vpp); 74 static int hpfs_mountfs (struct vnode *, struct mount *, 75 struct hpfs_args *, struct thread *); 76 static int hpfs_vptofh (struct vnode *, struct fid *); 77 static int hpfs_fhtovp (struct mount *, struct fid *, 78 struct vnode **); 79 80 #if !defined(__DragonFly__) 81 static int hpfs_quotactl (struct mount *, int, uid_t, caddr_t, 82 struct proc *); 83 static int hpfs_start (struct mount *, int, struct proc *); 84 static int hpfs_sync (struct mount *, int, struct ucred *, 85 struct proc *); 86 #endif 87 88 #if defined(__DragonFly__) 89 struct sockaddr; 90 static int hpfs_mount (struct mount *, char *, caddr_t, struct thread *); 91 static int hpfs_init (struct vfsconf *); 92 static int hpfs_checkexp (struct mount *, struct sockaddr *, 93 int *, struct ucred **); 94 #else /* defined(__NetBSD__) */ 95 static int hpfs_mount (struct mount *, const char *, void *, 96 struct nlookupdata *, struct proc *); 97 static void hpfs_init (void); 98 static int hpfs_sysctl (int *, u_int, void *, size_t *, void *, 99 size_t, struct proc *); 100 static int hpfs_checkexp (struct mount *, struct mbuf *, 101 int *, struct ucred **); 102 #endif 103 104 /*ARGSUSED*/ 105 static int 106 hpfs_checkexp(struct mount *mp, 107 #if defined(__DragonFly__) 108 struct sockaddr *nam, 109 #else /* defined(__NetBSD__) */ 110 struct mbuf *nam, 111 #endif 112 int *exflagsp, struct ucred **credanonp) 113 { 114 struct netcred *np; 115 struct hpfsmount *hpm = VFSTOHPFS(mp); 116 117 /* 118 * Get the export permission structure for this <mp, client> tuple. 119 */ 120 np = vfs_export_lookup(mp, &hpm->hpm_export, nam); 121 if (np == NULL) 122 return (EACCES); 123 124 *exflagsp = np->netc_exflags; 125 *credanonp = &np->netc_anon; 126 return (0); 127 } 128 129 #if defined(__DragonFly__) 130 static int 131 hpfs_init(struct vfsconf *vcp) 132 #else /* defined(__NetBSD__) */ 133 static void 134 hpfs_init(void) 135 #endif 136 { 137 dprintf(("hpfs_init():\n")); 138 139 hpfs_hphashinit(); 140 #if defined(__DragonFly__) 141 return 0; 142 #endif 143 } 144 145 static int 146 hpfs_mount(struct mount *mp, 147 #if defined(__DragonFly__) 148 char *path, caddr_t data, 149 #else /* defined(__NetBSD__) */ 150 const char *path, void *data, 151 #endif 152 struct thread *td) 153 { 154 u_int size; 155 int error; 156 struct vnode *devvp; 157 struct hpfs_args args; 158 struct hpfsmount *hpmp = 0; 159 struct nlookupdata nd; 160 161 dprintf(("hpfs_mount():\n")); 162 /* 163 *** 164 * Mounting non-root file system or updating a file system 165 *** 166 */ 167 168 /* copy in user arguments*/ 169 error = copyin(data, (caddr_t)&args, sizeof (struct hpfs_args)); 170 if (error) 171 goto error_1; /* can't get arguments*/ 172 173 /* 174 * If updating, check whether changing from read-only to 175 * read/write; if there is no device name, that's all we do. 176 */ 177 if (mp->mnt_flag & MNT_UPDATE) { 178 dprintf(("hpfs_mount: MNT_UPDATE: ")); 179 180 hpmp = VFSTOHPFS(mp); 181 182 if (args.fspec == 0) { 183 dprintf(("export 0x%x\n",args.export.ex_flags)); 184 error = vfs_export(mp, &hpmp->hpm_export, &args.export); 185 if (error) { 186 printf("hpfs_mount: vfs_export failed %d\n", 187 error); 188 } 189 goto success; 190 } else { 191 dprintf(("name [FAILED]\n")); 192 error = EINVAL; 193 goto success; 194 } 195 dprintf(("\n")); 196 } 197 198 /* 199 * Not an update, or updating the name: look up the name 200 * and verify that it refers to a sensible block device. 201 */ 202 devvp = NULL; 203 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 204 if (error == 0) 205 error = nlookup(&nd); 206 if (error == 0) 207 error = cache_vref(nd.nl_ncp, nd.nl_cred, &devvp); 208 nlookup_done(&nd); 209 if (error) 210 goto error_1; 211 212 #if defined(__DragonFly__) 213 if (!vn_isdisk(devvp, &error)) 214 goto error_2; 215 #else /* defined(__NetBSD__) */ 216 if (devvp->v_type != VBLK) { 217 error = ENOTBLK; 218 goto error_2; 219 } 220 if (umajor(devvp->v_udev) >= nblkdev) { 221 error = ENXIO; 222 goto error_2; 223 } 224 #endif 225 226 /* 227 ******************** 228 * NEW MOUNT 229 ******************** 230 */ 231 232 /* 233 * Since this is a new mount, we want the names for 234 * the device and the mount point copied in. If an 235 * error occurs, the mountpoint is discarded by the 236 * upper level code. 237 */ 238 /* Save "last mounted on" info for mount point (NULL pad)*/ 239 copyinstr( path, /* mount point*/ 240 mp->mnt_stat.f_mntonname, /* save area*/ 241 MNAMELEN - 1, /* max size*/ 242 &size); /* real size*/ 243 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size); 244 245 /* Save "mounted from" info for mount point (NULL pad)*/ 246 copyinstr( args.fspec, /* device name*/ 247 mp->mnt_stat.f_mntfromname, /* save area*/ 248 MNAMELEN - 1, /* max size*/ 249 &size); /* real size*/ 250 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 251 252 error = hpfs_mountfs(devvp, mp, &args, td); 253 if (error) 254 goto error_2; 255 256 /* 257 * Initialize FS stat information in mount struct; uses both 258 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 259 * 260 * This code is common to root and non-root mounts 261 */ 262 VFS_STATFS(mp, &mp->mnt_stat, td); 263 return (error); 264 265 error_2: /* error with devvp held*/ 266 267 /* release devvp before failing*/ 268 vrele(devvp); 269 270 error_1: /* no state to back out*/ 271 272 success: 273 return (error); 274 } 275 276 /* 277 * Common code for mount and mountroot 278 */ 279 int 280 hpfs_mountfs(struct vnode *devvp, struct mount *mp, struct hpfs_args *argsp, 281 struct thread *td) 282 { 283 int error, ncount, ronly; 284 struct sublock *sup; 285 struct spblock *spp; 286 struct hpfsmount *hpmp; 287 struct buf *bp = NULL; 288 struct vnode *vp; 289 dev_t dev; 290 291 dprintf(("hpfs_mountfs():\n")); 292 /* 293 * Disallow multiple mounts of the same device. 294 * Disallow mounting of a device that is currently in use 295 * (except for root, which might share swap device for miniroot). 296 * Flush out any old buffers remaining from a previous use. 297 */ 298 error = vfs_mountedon(devvp); 299 if (error) 300 return (error); 301 ncount = count_udev(devvp->v_udev); 302 #if defined(__DragonFly__) 303 if (devvp->v_object) 304 ncount -= 1; 305 #endif 306 if (ncount > 0) 307 return (EBUSY); 308 309 #if defined(__DragonFly__) 310 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 311 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 312 VOP__UNLOCK(devvp, 0, td); 313 #else 314 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 315 #endif 316 if (error) 317 return (error); 318 319 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 320 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 321 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL, td); 322 VOP__UNLOCK(devvp, 0, td); 323 if (error) 324 return (error); 325 dev = devvp->v_rdev; 326 327 /* 328 * Do actual mount 329 */ 330 hpmp = malloc(sizeof(struct hpfsmount), M_HPFSMNT, M_WAITOK); 331 bzero(hpmp, sizeof(struct hpfsmount)); 332 333 /* Read in SuperBlock */ 334 error = bread(devvp, SUBLOCK, SUSIZE, &bp); 335 if (error) 336 goto failed; 337 bcopy(bp->b_data, &hpmp->hpm_su, sizeof(struct sublock)); 338 brelse(bp); bp = NULL; 339 340 /* Read in SpareBlock */ 341 error = bread(devvp, SPBLOCK, SPSIZE, &bp); 342 if (error) 343 goto failed; 344 bcopy(bp->b_data, &hpmp->hpm_sp, sizeof(struct spblock)); 345 brelse(bp); bp = NULL; 346 347 sup = &hpmp->hpm_su; 348 spp = &hpmp->hpm_sp; 349 350 /* Check magic */ 351 if (sup->su_magic != SU_MAGIC) { 352 printf("hpfs_mountfs: SuperBlock MAGIC DOESN'T MATCH\n"); 353 error = EINVAL; 354 goto failed; 355 } 356 if (spp->sp_magic != SP_MAGIC) { 357 printf("hpfs_mountfs: SpareBlock MAGIC DOESN'T MATCH\n"); 358 error = EINVAL; 359 goto failed; 360 } 361 362 mp->mnt_data = (qaddr_t)hpmp; 363 hpmp->hpm_devvp = devvp; 364 hpmp->hpm_dev = dev; 365 hpmp->hpm_mp = mp; 366 hpmp->hpm_uid = argsp->uid; 367 hpmp->hpm_gid = argsp->gid; 368 hpmp->hpm_mode = argsp->mode; 369 370 error = hpfs_bminit(hpmp); 371 if (error) 372 goto failed; 373 374 error = hpfs_cpinit(hpmp, argsp); 375 if (error) { 376 hpfs_bmdeinit(hpmp); 377 goto failed; 378 } 379 vfs_add_vnodeops(mp, &mp->mnt_vn_norm_ops, hpfs_vnodeop_entries); 380 381 error = hpfs_root(mp, &vp); 382 if (error) { 383 hpfs_cpdeinit(hpmp); 384 hpfs_bmdeinit(hpmp); 385 goto failed; 386 } 387 388 vput(vp); 389 390 #if defined(__DragonFly__) 391 mp->mnt_stat.f_fsid.val[0] = (long)dev2udev(dev); 392 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 393 #else 394 mp->mnt_stat.f_fsid.val[0] = (long)dev; 395 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_HPFS); 396 #endif 397 mp->mnt_maxsymlinklen = 0; 398 mp->mnt_flag |= MNT_LOCAL; 399 dev->si_mountpoint = mp; 400 return (0); 401 402 failed: 403 if (bp) 404 brelse (bp); 405 mp->mnt_data = (qaddr_t)NULL; 406 #if defined(__DragonFly__) 407 dev->si_mountpoint = NULL; 408 #else 409 devvp->v_specflags &= ~SI_MOUNTEDON; 410 #endif 411 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 412 return (error); 413 } 414 415 #if !defined(__DragonFly__) 416 static int 417 hpfs_start(struct mount *mp, int flags, struct thread *td) 418 { 419 return (0); 420 } 421 #endif 422 423 static int 424 hpfs_unmount(struct mount *mp, int mntflags, struct thread *td) 425 { 426 int error, flags, ronly; 427 struct hpfsmount *hpmp = VFSTOHPFS(mp); 428 429 dprintf(("hpfs_unmount():\n")); 430 431 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 432 433 flags = 0; 434 if(mntflags & MNT_FORCE) 435 flags |= FORCECLOSE; 436 437 dprintf(("hpfs_unmount: vflushing...\n")); 438 439 error = vflush(mp, 0, flags); 440 if (error) { 441 printf("hpfs_unmount: vflush failed: %d\n",error); 442 return (error); 443 } 444 445 #if defined(__DragonFly__) 446 hpmp->hpm_devvp->v_rdev->si_mountpoint = NULL; 447 #else 448 hpmp->hpm_devvp->v_specflags &= ~SI_MOUNTEDON; 449 #endif 450 451 vinvalbuf(hpmp->hpm_devvp, V_SAVE, td, 0, 0); 452 error = VOP_CLOSE(hpmp->hpm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 453 454 vrele(hpmp->hpm_devvp); 455 456 dprintf(("hpfs_umount: freeing memory...\n")); 457 hpfs_cpdeinit(hpmp); 458 hpfs_bmdeinit(hpmp); 459 mp->mnt_data = (qaddr_t)0; 460 mp->mnt_flag &= ~MNT_LOCAL; 461 FREE(hpmp, M_HPFSMNT); 462 463 return (0); 464 } 465 466 static int 467 hpfs_root(struct mount *mp, struct vnode **vpp) 468 { 469 int error = 0; 470 struct hpfsmount *hpmp = VFSTOHPFS(mp); 471 472 dprintf(("hpfs_root():\n")); 473 error = VFS_VGET(mp, (ino_t)hpmp->hpm_su.su_rootfno, vpp); 474 if(error) { 475 printf("hpfs_root: VFS_VGET failed: %d\n",error); 476 return (error); 477 } 478 479 return (error); 480 } 481 482 static int 483 hpfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td) 484 { 485 struct hpfsmount *hpmp = VFSTOHPFS(mp); 486 487 dprintf(("hpfs_statfs(): HPFS%d.%d\n", 488 hpmp->hpm_su.su_hpfsver, hpmp->hpm_su.su_fnctver)); 489 490 #if defined(__DragonFly__) 491 sbp->f_type = mp->mnt_vfc->vfc_typenum; 492 #else /* defined(__NetBSD__) */ 493 sbp->f_type = 0; 494 #endif 495 sbp->f_bsize = DEV_BSIZE; 496 sbp->f_iosize = DEV_BSIZE; 497 sbp->f_blocks = hpmp->hpm_su.su_btotal; 498 sbp->f_bfree = sbp->f_bavail = hpmp->hpm_bavail; 499 sbp->f_ffree = 0; 500 sbp->f_files = 0; 501 if (sbp != &mp->mnt_stat) { 502 bcopy((caddr_t)mp->mnt_stat.f_mntonname, 503 (caddr_t)&sbp->f_mntonname[0], MNAMELEN); 504 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 505 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 506 } 507 sbp->f_flags = mp->mnt_flag; 508 509 return (0); 510 } 511 512 #if !defined(__DragonFly__) 513 static int 514 hpfs_sync(struct mount *mp, int waitfor, struct ucred *cred, 515 struct thread *td) 516 { 517 return (0); 518 } 519 520 static int 521 hpfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 522 struct thread *td) 523 { 524 printf("hpfs_quotactl():\n"); 525 return (EOPNOTSUPP); 526 } 527 #endif 528 529 /*ARGSUSED*/ 530 static int 531 hpfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 532 { 533 struct vnode *nvp; 534 struct hpfid *hpfhp = (struct hpfid *)fhp; 535 int error; 536 537 if ((error = VFS_VGET(mp, hpfhp->hpfid_ino, &nvp)) != 0) { 538 *vpp = NULLVP; 539 return (error); 540 } 541 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 542 * with HPFS, we don't need to check anything else for now */ 543 *vpp = nvp; 544 545 return (0); 546 } 547 548 static int 549 hpfs_vptofh(struct vnode *vp, struct fid *fhp) 550 { 551 struct hpfsnode *hpp; 552 struct hpfid *hpfhp; 553 554 hpp = VTOHP(vp); 555 hpfhp = (struct hpfid *)fhp; 556 hpfhp->hpfid_len = sizeof(struct hpfid); 557 hpfhp->hpfid_ino = hpp->h_no; 558 /* hpfhp->hpfid_gen = hpp->h_gen; */ 559 return (0); 560 } 561 562 static int 563 hpfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 564 { 565 struct hpfsmount *hpmp = VFSTOHPFS(mp); 566 struct vnode *vp; 567 struct hpfsnode *hp; 568 struct buf *bp; 569 struct thread *td = curthread; /* XXX */ 570 int error; 571 572 dprintf(("hpfs_vget(0x%x): ",ino)); 573 574 *vpp = NULL; 575 hp = NULL; 576 vp = NULL; 577 578 if ((*vpp = hpfs_hphashvget(hpmp->hpm_dev, ino, td)) != NULL) { 579 dprintf(("hashed\n")); 580 return (0); 581 } 582 583 /* 584 * We have to lock node creation for a while, 585 * but then we have to call getnewvnode(), 586 * this may cause hpfs_reclaim() to be called, 587 * this may need to VOP_VGET() parent dir for 588 * update reasons, and if parent is not in 589 * hash, we have to lock node creation... 590 * To solve this, we MALLOC, getnewvnode and init while 591 * not locked (probability of node appearence 592 * at that time is little, and anyway - we'll 593 * check for it). 594 */ 595 MALLOC(hp, struct hpfsnode *, sizeof(struct hpfsnode), 596 M_HPFSNO, M_WAITOK); 597 598 error = getnewvnode(VT_HPFS, hpmp->hpm_mp, &vp, VLKTIMEOUT, 0); 599 if (error) { 600 printf("hpfs_vget: can't get new vnode\n"); 601 FREE(hp, M_HPFSNO); 602 return (error); 603 } 604 605 dprintf(("prenew ")); 606 607 vp->v_data = hp; 608 609 if (ino == (ino_t)hpmp->hpm_su.su_rootfno) 610 vp->v_flag |= VROOT; 611 612 lwkt_token_init(&hp->h_interlock); 613 614 hp->h_flag = H_INVAL; 615 hp->h_vp = vp; 616 hp->h_hpmp = hpmp; 617 hp->h_no = ino; 618 hp->h_dev = hpmp->hpm_dev; 619 hp->h_uid = hpmp->hpm_uid; 620 hp->h_gid = hpmp->hpm_uid; 621 hp->h_mode = hpmp->hpm_mode; 622 hp->h_devvp = hpmp->hpm_devvp; 623 vref(hp->h_devvp); 624 625 do { 626 if ((*vpp = hpfs_hphashvget(hpmp->hpm_dev, ino, td)) != NULL) { 627 dprintf(("hashed2\n")); 628 vx_put(vp); 629 return (0); 630 } 631 } while(LOCKMGR(&hpfs_hphash_lock,LK_EXCLUSIVE|LK_SLEEPFAIL,NULL,NULL)); 632 633 hpfs_hphashins(hp); 634 635 LOCKMGR(&hpfs_hphash_lock, LK_RELEASE, NULL, NULL); 636 637 error = bread(hpmp->hpm_devvp, ino, FNODESIZE, &bp); 638 if (error) { 639 printf("hpfs_vget: can't read ino %d\n",ino); 640 vx_put(vp); 641 return (error); 642 } 643 bcopy(bp->b_data, &hp->h_fn, sizeof(struct fnode)); 644 brelse(bp); 645 646 if (hp->h_fn.fn_magic != FN_MAGIC) { 647 printf("hpfs_vget: MAGIC DOESN'T MATCH\n"); 648 vx_put(vp); 649 return (EINVAL); 650 } 651 652 vp->v_type = hp->h_fn.fn_flag ? VDIR:VREG; 653 hp->h_flag &= ~H_INVAL; 654 655 /* Return the locked and refd vnode */ 656 *vpp = vp; 657 658 return (0); 659 } 660 661 static struct vfsops hpfs_vfsops = { 662 hpfs_mount, 663 vfs_stdstart, 664 hpfs_unmount, 665 hpfs_root, 666 vfs_stdquotactl, 667 hpfs_statfs, 668 vfs_stdsync, 669 hpfs_vget, 670 hpfs_fhtovp, 671 hpfs_checkexp, 672 hpfs_vptofh, 673 hpfs_init, 674 hpfs_hphash_uninit, 675 vfs_stdextattrctl, 676 }; 677 678 VFS_SET(hpfs_vfsops, hpfs, 0); 679 680