1 /* 2 * Copyright (c) 1986, 1989, 1991 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)lfs_vnops.c 7.97 (Berkeley) 12/10/92 8 */ 9 10 #include <sys/param.h> 11 #include <sys/systm.h> 12 #include <sys/namei.h> 13 #include <sys/resourcevar.h> 14 #include <sys/kernel.h> 15 #include <sys/file.h> 16 #include <sys/stat.h> 17 #include <sys/buf.h> 18 #include <sys/proc.h> 19 #include <sys/conf.h> 20 #include <sys/mount.h> 21 #include <sys/vnode.h> 22 #include <sys/malloc.h> 23 24 #include <vm/vm.h> 25 26 #include <miscfs/specfs/specdev.h> 27 #include <miscfs/fifofs/fifo.h> 28 29 #include <ufs/ufs/quota.h> 30 #include <ufs/ufs/inode.h> 31 #include <ufs/ufs/dir.h> 32 #include <ufs/ufs/ufsmount.h> 33 #include <ufs/ufs/ufs_extern.h> 34 35 #include <ufs/lfs/lfs.h> 36 #include <ufs/lfs/lfs_extern.h> 37 38 /* Global vfs data structures for lfs. */ 39 int (**lfs_vnodeop_p)(); 40 struct vnodeopv_entry_desc lfs_vnodeop_entries[] = { 41 { &vop_default_desc, vn_default_error }, 42 { &vop_lookup_desc, ufs_lookup }, /* lookup */ 43 { &vop_create_desc, ufs_create }, /* create */ 44 { &vop_mknod_desc, ufs_mknod }, /* mknod */ 45 { &vop_open_desc, ufs_open }, /* open */ 46 { &vop_close_desc, lfs_close }, /* close */ 47 { &vop_access_desc, ufs_access }, /* access */ 48 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 49 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 50 { &vop_read_desc, lfs_read }, /* read */ 51 { &vop_write_desc, lfs_write }, /* write */ 52 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 53 { &vop_select_desc, ufs_select }, /* select */ 54 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 55 { &vop_fsync_desc, lfs_fsync }, /* fsync */ 56 { &vop_seek_desc, ufs_seek }, /* seek */ 57 { &vop_remove_desc, ufs_remove }, /* remove */ 58 { &vop_link_desc, ufs_link }, /* link */ 59 { &vop_rename_desc, ufs_rename }, /* rename */ 60 { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */ 61 { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */ 62 { &vop_symlink_desc, ufs_symlink }, /* symlink */ 63 { &vop_readdir_desc, ufs_readdir }, /* readdir */ 64 { &vop_readlink_desc, ufs_readlink }, /* readlink */ 65 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 66 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 67 { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */ 68 { &vop_lock_desc, ufs_lock }, /* lock */ 69 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 70 { &vop_bmap_desc, ufs_bmap }, /* bmap */ 71 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 72 { &vop_print_desc, ufs_print }, /* print */ 73 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 74 { &vop_advlock_desc, ufs_advlock }, /* advlock */ 75 { &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */ 76 { &vop_valloc_desc, lfs_valloc }, /* valloc */ 77 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 78 { &vop_truncate_desc, lfs_truncate }, /* truncate */ 79 { &vop_update_desc, lfs_update }, /* update */ 80 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 81 { (struct vnodeop_desc*)NULL, (int(*)())NULL } 82 }; 83 struct vnodeopv_desc lfs_vnodeop_opv_desc = 84 { &lfs_vnodeop_p, lfs_vnodeop_entries }; 85 86 int (**lfs_specop_p)(); 87 struct vnodeopv_entry_desc lfs_specop_entries[] = { 88 { &vop_default_desc, vn_default_error }, 89 { &vop_lookup_desc, spec_lookup }, /* lookup */ 90 { &vop_create_desc, spec_create }, /* create */ 91 { &vop_mknod_desc, spec_mknod }, /* mknod */ 92 { &vop_open_desc, spec_open }, /* open */ 93 { &vop_close_desc, ufsspec_close }, /* close */ 94 { &vop_access_desc, ufs_access }, /* access */ 95 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 96 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 97 { &vop_read_desc, ufsspec_read }, /* read */ 98 { &vop_write_desc, ufsspec_write }, /* write */ 99 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 100 { &vop_select_desc, spec_select }, /* select */ 101 { &vop_mmap_desc, spec_mmap }, /* mmap */ 102 { &vop_fsync_desc, spec_fsync }, /* fsync */ 103 { &vop_seek_desc, spec_seek }, /* seek */ 104 { &vop_remove_desc, spec_remove }, /* remove */ 105 { &vop_link_desc, spec_link }, /* link */ 106 { &vop_rename_desc, spec_rename }, /* rename */ 107 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 108 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 109 { &vop_symlink_desc, spec_symlink }, /* symlink */ 110 { &vop_readdir_desc, spec_readdir }, /* readdir */ 111 { &vop_readlink_desc, spec_readlink }, /* readlink */ 112 { &vop_abortop_desc, spec_abortop }, /* abortop */ 113 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 114 { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */ 115 { &vop_lock_desc, ufs_lock }, /* lock */ 116 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 117 { &vop_bmap_desc, spec_bmap }, /* bmap */ 118 { &vop_strategy_desc, spec_strategy }, /* strategy */ 119 { &vop_print_desc, ufs_print }, /* print */ 120 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 121 { &vop_advlock_desc, spec_advlock }, /* advlock */ 122 { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ 123 { &vop_valloc_desc, spec_valloc }, /* valloc */ 124 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 125 { &vop_truncate_desc, spec_truncate }, /* truncate */ 126 { &vop_update_desc, lfs_update }, /* update */ 127 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 128 { (struct vnodeop_desc*)NULL, (int(*)())NULL } 129 }; 130 struct vnodeopv_desc lfs_specop_opv_desc = 131 { &lfs_specop_p, lfs_specop_entries }; 132 133 #ifdef FIFO 134 int (**lfs_fifoop_p)(); 135 struct vnodeopv_entry_desc lfs_fifoop_entries[] = { 136 { &vop_default_desc, vn_default_error }, 137 { &vop_lookup_desc, fifo_lookup }, /* lookup */ 138 { &vop_create_desc, fifo_create }, /* create */ 139 { &vop_mknod_desc, fifo_mknod }, /* mknod */ 140 { &vop_open_desc, fifo_open }, /* open */ 141 { &vop_close_desc, ufsfifo_close }, /* close */ 142 { &vop_access_desc, ufs_access }, /* access */ 143 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 144 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 145 { &vop_read_desc, ufsfifo_read }, /* read */ 146 { &vop_write_desc, ufsfifo_write }, /* write */ 147 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ 148 { &vop_select_desc, fifo_select }, /* select */ 149 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 150 { &vop_fsync_desc, fifo_fsync }, /* fsync */ 151 { &vop_seek_desc, fifo_seek }, /* seek */ 152 { &vop_remove_desc, fifo_remove }, /* remove */ 153 { &vop_link_desc, fifo_link }, /* link */ 154 { &vop_rename_desc, fifo_rename }, /* rename */ 155 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 156 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 157 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 158 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 159 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 160 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 161 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 162 { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */ 163 { &vop_lock_desc, ufs_lock }, /* lock */ 164 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 165 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 166 { &vop_strategy_desc, fifo_strategy }, /* strategy */ 167 { &vop_print_desc, ufs_print }, /* print */ 168 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 169 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 170 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ 171 { &vop_valloc_desc, fifo_valloc }, /* valloc */ 172 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 173 { &vop_truncate_desc, fifo_truncate }, /* truncate */ 174 { &vop_update_desc, lfs_update }, /* update */ 175 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 176 { (struct vnodeop_desc*)NULL, (int(*)())NULL } 177 }; 178 struct vnodeopv_desc lfs_fifoop_opv_desc = 179 { &lfs_fifoop_p, lfs_fifoop_entries }; 180 #endif /* FIFO */ 181 182 /* 183 * Vnode op for reading. 184 */ 185 /* ARGSUSED */ 186 lfs_read(ap) 187 struct vop_read_args /* { 188 struct vnode *a_vp; 189 struct uio *a_uio; 190 int a_ioflag; 191 struct ucred *a_cred; 192 } */ *ap; 193 { 194 register struct vnode *vp = ap->a_vp; 195 register struct inode *ip = VTOI(vp); 196 register struct uio *uio = ap->a_uio; 197 register struct lfs *fs; 198 struct buf *bp; 199 daddr_t lbn, bn, rablock; 200 off_t diff; 201 int type, error = 0, size; 202 long n, on; 203 204 type = ip->i_mode & IFMT; 205 #ifdef DIAGNOSTIC 206 if (uio->uio_rw != UIO_READ) 207 panic("lfs_read mode"); 208 if (type != IFDIR && type != IFREG && type != IFLNK) 209 panic("lfs_read type"); 210 if (type == IFLNK && (int)ip->i_size < vp->v_mount->mnt_maxsymlinklen) 211 panic("read short symlink"); 212 #endif 213 if (uio->uio_resid == 0) 214 return (0); 215 fs = ip->i_lfs; 216 if (uio->uio_offset < 0 || 217 (u_quad_t)uio->uio_offset + uio->uio_resid > fs->lfs_maxfilesize) 218 return (EFBIG); 219 ip->i_flag |= IACC; 220 do { 221 lbn = lblkno(fs, uio->uio_offset); 222 on = blkoff(fs, uio->uio_offset); 223 n = min((unsigned)(fs->lfs_bsize - on), uio->uio_resid); 224 diff = ip->i_size - uio->uio_offset; 225 if (diff <= 0) 226 break; 227 if (diff < n) 228 n = diff; 229 size = blksize(fs); 230 lfs_check(vp, lbn); 231 error = cluster_read(vp, ip->i_size, lbn, size, NOCRED, &bp); 232 vp->v_lastr = lbn; 233 n = min(n, size - bp->b_resid); 234 if (error) 235 break; 236 error = uiomove(bp->b_un.b_addr + on, (int)n, uio); 237 if (type == IFREG && 238 n + on == fs->lfs_bsize || uio->uio_offset == ip->i_size) 239 bp->b_flags |= B_AGE; 240 brelse(bp); 241 } while (error == 0 && uio->uio_resid > 0 && n != 0); 242 return (error); 243 } 244 245 /* 246 * Vnode op for writing. 247 */ 248 lfs_write(ap) 249 struct vop_write_args /* { 250 struct vnode *a_vp; 251 struct uio *a_uio; 252 int a_ioflag; 253 struct ucred *a_cred; 254 } */ *ap; 255 { 256 register struct vnode *vp = ap->a_vp; 257 register struct uio *uio = ap->a_uio; 258 struct proc *p = uio->uio_procp; 259 register struct inode *ip = VTOI(vp); 260 register struct lfs *fs; 261 register ioflag = ap->a_ioflag; 262 struct timeval tv; 263 struct buf *bp; 264 daddr_t lbn; 265 off_t osize; 266 int n, on, flags, newblock; 267 int size, resid, error = 0; 268 269 #ifdef DIAGNOSTIC 270 if (uio->uio_rw != UIO_WRITE) 271 panic("lfs_write mode"); 272 #endif 273 switch (vp->v_type) { 274 case VREG: 275 if (ioflag & IO_APPEND) 276 uio->uio_offset = ip->i_size; 277 /* fall through */ 278 case VLNK: 279 break; 280 281 case VDIR: 282 /* XXX This may not be correct for LFS. */ 283 if ((ioflag & IO_SYNC) == 0) 284 panic("lfs_write nonsync dir write"); 285 break; 286 287 default: 288 panic("lfs_write type"); 289 } 290 if (uio->uio_offset < 0) 291 return (EINVAL); 292 if (uio->uio_resid == 0) 293 return (0); 294 /* 295 * Maybe this should be above the vnode op call, but so long as 296 * file servers have no limits, i don't think it matters 297 */ 298 if (vp->v_type == VREG && p && 299 uio->uio_offset + uio->uio_resid > 300 p->p_rlimit[RLIMIT_FSIZE].rlim_cur) { 301 psignal(p, SIGXFSZ); 302 return (EFBIG); 303 } 304 resid = uio->uio_resid; 305 osize = ip->i_size; 306 fs = ip->i_lfs; /* LFS */ 307 if (uio->uio_offset < 0 || 308 (u_quad_t)uio->uio_offset + uio->uio_resid > fs->lfs_maxfilesize) 309 return (EFBIG); 310 311 do { 312 lbn = lblkno(fs, uio->uio_offset); 313 on = blkoff(fs, uio->uio_offset); 314 n = min((unsigned)(fs->lfs_bsize - on), uio->uio_resid); 315 lfs_check(vp, lbn); 316 if (error = lfs_balloc(vp, n, lbn, &bp)) 317 break; 318 if (uio->uio_offset + n > ip->i_size) { 319 ip->i_size = uio->uio_offset + n; 320 vnode_pager_setsize(vp, (u_long)ip->i_size); 321 } 322 size = blksize(fs); 323 (void) vnode_pager_uncache(vp); 324 n = min(n, size - bp->b_resid); 325 error = uiomove(bp->b_un.b_addr + on, n, uio); 326 error = VOP_BWRITE(bp); 327 /* XXX Why is this in the loop? */ 328 if (ap->a_cred && ap->a_cred->cr_uid != 0) 329 ip->i_mode &= ~(ISUID|ISGID); 330 } while (error == 0 && uio->uio_resid > 0 && n != 0); 331 332 if (error) { 333 if (ioflag & IO_UNIT) { 334 (void)VOP_TRUNCATE(vp, osize, ioflag & IO_SYNC, 335 ap->a_cred, uio->uio_procp); 336 uio->uio_offset -= resid - uio->uio_resid; 337 uio->uio_resid = resid; 338 } 339 } 340 341 /* TURN OFF SYNC FOR NOW 342 if (!error && (ioflag & IO_SYNC)) { 343 tv = time; 344 if (!(error = VOP_UPDATE(vp, &tv, &tv, 1))) 345 error = VOP_FSYNC(vp, ap->a_cred, MNT_WAIT, 346 uio->uio_procp); 347 } 348 */ 349 return (error); 350 } 351 352 /* 353 * Synch an open file. 354 */ 355 /* ARGSUSED */ 356 lfs_fsync(ap) 357 struct vop_fsync_args /* { 358 struct vnode *a_vp; 359 struct ucred *a_cred; 360 int a_waitfor; 361 struct proc *a_p; 362 } */ *ap; 363 { 364 struct timeval tv; 365 366 tv = time; 367 return (VOP_UPDATE(ap->a_vp, &tv, &tv, 368 ap->a_waitfor == MNT_WAIT ? LFS_SYNC : 0)); 369 } 370 371 /* 372 * These macros are used to bracket UFS directory ops, so that we can 373 * identify all the pages touched during directory ops which need to 374 * be ordered and flushed atomically, so that they may be recovered. 375 */ 376 #define SET_DIROP(fs) { \ 377 if ((fs)->lfs_writer) \ 378 tsleep(&(fs)->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); \ 379 ++(fs)->lfs_dirops; \ 380 (fs)->lfs_doifile = 1; \ 381 } 382 383 #define SET_ENDOP(fs) { \ 384 --(fs)->lfs_dirops; \ 385 if (!(fs)->lfs_dirops) \ 386 wakeup(&(fs)->lfs_writer); \ 387 } 388 389 #define MARK_VNODE(dvp) (dvp)->v_flag |= VDIROP 390 391 int 392 lfs_symlink(ap) 393 struct vop_symlink_args /* { 394 struct vnode *a_dvp; 395 struct vnode **a_vpp; 396 struct componentname *a_cnp; 397 struct vattr *a_vap; 398 char *a_target; 399 } */ *ap; 400 { 401 int ret; 402 403 SET_DIROP(VTOI(ap->a_dvp)->i_lfs); 404 MARK_VNODE(ap->a_dvp); 405 ret = ufs_symlink(ap); 406 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs); 407 return (ret); 408 } 409 410 int 411 lfs_mknod(ap) 412 struct vop_mknod_args /* { 413 struct vnode *a_dvp; 414 struct vnode **a_vpp; 415 struct componentname *a_cnp; 416 struct vattr *a_vap; 417 } */ *ap; 418 { 419 int ret; 420 421 SET_DIROP(VTOI(ap->a_dvp)->i_lfs); 422 MARK_VNODE(ap->a_dvp); 423 ret = ufs_mknod(ap); 424 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs); 425 return (ret); 426 } 427 428 int 429 lfs_create(ap) 430 struct vop_create_args /* { 431 struct vnode *a_dvp; 432 struct vnode **a_vpp; 433 struct componentname *a_cnp; 434 struct vattr *a_vap; 435 } */ *ap; 436 { 437 int ret; 438 439 SET_DIROP(VTOI(ap->a_dvp)->i_lfs); 440 MARK_VNODE(ap->a_dvp); 441 ret = ufs_create(ap); 442 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs); 443 return (ret); 444 } 445 446 int 447 lfs_mkdir(ap) 448 struct vop_mkdir_args /* { 449 struct vnode *a_dvp; 450 struct vnode **a_vpp; 451 struct componentname *a_cnp; 452 struct vattr *a_vap; 453 } */ *ap; 454 { 455 int ret; 456 457 SET_DIROP(VTOI(ap->a_dvp)->i_lfs); 458 MARK_VNODE(ap->a_dvp); 459 ret = ufs_mkdir(ap); 460 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs); 461 return (ret); 462 } 463 464 int 465 lfs_remove(ap) 466 struct vop_remove_args /* { 467 struct vnode *a_dvp; 468 struct vnode *a_vp; 469 struct componentname *a_cnp; 470 } */ *ap; 471 { 472 int ret; 473 474 SET_DIROP(VTOI(ap->a_dvp)->i_lfs); 475 MARK_VNODE(ap->a_dvp); 476 MARK_VNODE(ap->a_vp); 477 ret = ufs_remove(ap); 478 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs); 479 return (ret); 480 } 481 482 int 483 lfs_rmdir(ap) 484 struct vop_rmdir_args /* { 485 struct vnodeop_desc *a_desc; 486 struct vnode *a_dvp; 487 struct vnode *a_vp; 488 struct componentname *a_cnp; 489 } */ *ap; 490 { 491 int ret; 492 493 SET_DIROP(VTOI(ap->a_dvp)->i_lfs); 494 MARK_VNODE(ap->a_dvp); 495 MARK_VNODE(ap->a_vp); 496 ret = ufs_rmdir(ap); 497 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs); 498 return (ret); 499 } 500 501 int 502 lfs_link(ap) 503 struct vop_link_args /* { 504 struct vnode *a_vp; 505 struct vnode *a_tdvp; 506 struct componentname *a_cnp; 507 } */ *ap; 508 { 509 int ret; 510 511 SET_DIROP(VTOI(ap->a_vp)->i_lfs); 512 MARK_VNODE(ap->a_vp); 513 ret = ufs_link(ap); 514 SET_ENDOP(VTOI(ap->a_vp)->i_lfs); 515 return (ret); 516 } 517 518 int 519 lfs_rename(ap) 520 struct vop_rename_args /* { 521 struct vnode *a_fdvp; 522 struct vnode *a_fvp; 523 struct componentname *a_fcnp; 524 struct vnode *a_tdvp; 525 struct vnode *a_tvp; 526 struct componentname *a_tcnp; 527 } */ *ap; 528 { 529 int ret; 530 531 SET_DIROP(VTOI(ap->a_fdvp)->i_lfs); 532 MARK_VNODE(ap->a_fdvp); 533 MARK_VNODE(ap->a_tdvp); 534 ret = ufs_rename(ap); 535 SET_ENDOP(VTOI(ap->a_fdvp)->i_lfs); 536 return (ret); 537 } 538 /* XXX hack to avoid calling ITIMES in getattr */ 539 int 540 lfs_getattr(ap) 541 struct vop_getattr_args /* { 542 struct vnode *a_vp; 543 struct vattr *a_vap; 544 struct ucred *a_cred; 545 struct proc *a_p; 546 } */ *ap; 547 { 548 register struct vnode *vp = ap->a_vp; 549 register struct inode *ip = VTOI(vp); 550 register struct vattr *vap = ap->a_vap; 551 /* 552 * Copy from inode table 553 */ 554 vap->va_fsid = ip->i_dev; 555 vap->va_fileid = ip->i_number; 556 vap->va_mode = ip->i_mode & ~IFMT; 557 vap->va_nlink = ip->i_nlink; 558 vap->va_uid = ip->i_uid; 559 vap->va_gid = ip->i_gid; 560 vap->va_rdev = (dev_t)ip->i_rdev; 561 vap->va_size = ip->i_din.di_size; 562 vap->va_atime = ip->i_atime; 563 vap->va_mtime = ip->i_mtime; 564 vap->va_ctime = ip->i_ctime; 565 vap->va_flags = ip->i_flags; 566 vap->va_gen = ip->i_gen; 567 /* this doesn't belong here */ 568 if (vp->v_type == VBLK) 569 vap->va_blocksize = BLKDEV_IOSIZE; 570 else if (vp->v_type == VCHR) 571 vap->va_blocksize = MAXBSIZE; 572 else 573 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 574 vap->va_bytes = dbtob(ip->i_blocks); 575 vap->va_type = vp->v_type; 576 vap->va_filerev = ip->i_modrev; 577 return (0); 578 } 579 /* 580 * Close called 581 * 582 * XXX -- we were using ufs_close, but since it updates the 583 * times on the inode, we might need to bump the uinodes 584 * count. 585 */ 586 /* ARGSUSED */ 587 int 588 lfs_close(ap) 589 struct vop_close_args /* { 590 struct vnode *a_vp; 591 int a_fflag; 592 struct ucred *a_cred; 593 struct proc *a_p; 594 } */ *ap; 595 { 596 register struct vnode *vp = ap->a_vp; 597 register struct inode *ip = VTOI(vp); 598 int mod; 599 600 if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED)) { 601 mod = ip->i_flag & IMOD; 602 ITIMES(ip, &time, &time); 603 if (!mod && ip->i_flag & IMOD) 604 ip->i_lfs->lfs_uinodes++; 605 } 606 return (0); 607 } 608 609