lfs_vnops.c revision 1.25.2.2
1 /* $NetBSD: lfs_vnops.c,v 1.25.2.2 1999/11/08 06:26:44 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Konrad E. Schroder <perseant (at) hhhh.org>. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 /* 39 * Copyright (c) 1986, 1989, 1991, 1993, 1995 40 * The Regents of the University of California. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Berkeley and its contributors. 54 * 4. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)lfs_vnops.c 8.13 (Berkeley) 6/10/95 71 */ 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/namei.h> 76 #include <sys/resourcevar.h> 77 #include <sys/kernel.h> 78 #include <sys/file.h> 79 #include <sys/stat.h> 80 #include <sys/buf.h> 81 #include <sys/proc.h> 82 #include <sys/conf.h> 83 #include <sys/mount.h> 84 #include <sys/vnode.h> 85 #include <sys/malloc.h> 86 #include <sys/pool.h> 87 #include <sys/signalvar.h> 88 89 #include <vm/vm.h> 90 91 #include <miscfs/fifofs/fifo.h> 92 #include <miscfs/genfs/genfs.h> 93 #include <miscfs/specfs/specdev.h> 94 95 #include <ufs/ufs/quota.h> 96 #include <ufs/ufs/inode.h> 97 #include <ufs/ufs/dir.h> 98 #include <ufs/ufs/ufsmount.h> 99 #include <ufs/ufs/ufs_extern.h> 100 101 #include <ufs/lfs/lfs.h> 102 #include <ufs/lfs/lfs_extern.h> 103 104 /* Global vfs data structures for lfs. */ 105 int (**lfs_vnodeop_p) __P((void *)); 106 struct vnodeopv_entry_desc lfs_vnodeop_entries[] = { 107 { &vop_default_desc, vn_default_error }, 108 { &vop_lookup_desc, ufs_lookup }, /* lookup */ 109 { &vop_create_desc, lfs_create }, /* create */ 110 { &vop_whiteout_desc, lfs_whiteout }, /* whiteout */ 111 { &vop_mknod_desc, lfs_mknod }, /* mknod */ 112 { &vop_open_desc, ufs_open }, /* open */ 113 { &vop_close_desc, lfs_close }, /* close */ 114 { &vop_access_desc, ufs_access }, /* access */ 115 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 116 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 117 { &vop_read_desc, lfs_read }, /* read */ 118 { &vop_write_desc, lfs_write }, /* write */ 119 { &vop_lease_desc, ufs_lease_check }, /* lease */ 120 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 121 { &vop_poll_desc, ufs_poll }, /* poll */ 122 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 123 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 124 { &vop_fsync_desc, lfs_fsync }, /* fsync */ 125 { &vop_seek_desc, ufs_seek }, /* seek */ 126 { &vop_remove_desc, lfs_remove }, /* remove */ 127 { &vop_link_desc, lfs_link }, /* link */ 128 { &vop_rename_desc, lfs_rename }, /* rename */ 129 { &vop_mkdir_desc, lfs_mkdir }, /* mkdir */ 130 { &vop_rmdir_desc, lfs_rmdir }, /* rmdir */ 131 { &vop_symlink_desc, lfs_symlink }, /* symlink */ 132 { &vop_readdir_desc, ufs_readdir }, /* readdir */ 133 { &vop_readlink_desc, ufs_readlink }, /* readlink */ 134 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 135 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 136 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 137 { &vop_lock_desc, ufs_lock }, /* lock */ 138 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 139 { &vop_bmap_desc, ufs_bmap }, /* bmap */ 140 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 141 { &vop_print_desc, ufs_print }, /* print */ 142 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 143 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 144 { &vop_advlock_desc, ufs_advlock }, /* advlock */ 145 { &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */ 146 { &vop_valloc_desc, lfs_valloc }, /* valloc */ 147 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 148 { &vop_truncate_desc, lfs_truncate }, /* truncate */ 149 { &vop_update_desc, lfs_update }, /* update */ 150 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 151 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 152 }; 153 struct vnodeopv_desc lfs_vnodeop_opv_desc = 154 { &lfs_vnodeop_p, lfs_vnodeop_entries }; 155 156 int (**lfs_specop_p) __P((void *)); 157 struct vnodeopv_entry_desc lfs_specop_entries[] = { 158 { &vop_default_desc, vn_default_error }, 159 { &vop_lookup_desc, spec_lookup }, /* lookup */ 160 { &vop_create_desc, spec_create }, /* create */ 161 { &vop_mknod_desc, spec_mknod }, /* mknod */ 162 { &vop_open_desc, spec_open }, /* open */ 163 { &vop_close_desc, ufsspec_close }, /* close */ 164 { &vop_access_desc, ufs_access }, /* access */ 165 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 166 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 167 { &vop_read_desc, ufsspec_read }, /* read */ 168 { &vop_write_desc, ufsspec_write }, /* write */ 169 { &vop_lease_desc, spec_lease_check }, /* lease */ 170 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 171 { &vop_poll_desc, spec_poll }, /* poll */ 172 { &vop_revoke_desc, spec_revoke }, /* revoke */ 173 { &vop_mmap_desc, spec_mmap }, /* mmap */ 174 { &vop_fsync_desc, spec_fsync }, /* fsync */ 175 { &vop_seek_desc, spec_seek }, /* seek */ 176 { &vop_remove_desc, spec_remove }, /* remove */ 177 { &vop_link_desc, spec_link }, /* link */ 178 { &vop_rename_desc, spec_rename }, /* rename */ 179 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 180 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 181 { &vop_symlink_desc, spec_symlink }, /* symlink */ 182 { &vop_readdir_desc, spec_readdir }, /* readdir */ 183 { &vop_readlink_desc, spec_readlink }, /* readlink */ 184 { &vop_abortop_desc, spec_abortop }, /* abortop */ 185 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 186 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 187 { &vop_lock_desc, ufs_lock }, /* lock */ 188 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 189 { &vop_bmap_desc, spec_bmap }, /* bmap */ 190 { &vop_strategy_desc, spec_strategy }, /* strategy */ 191 { &vop_print_desc, ufs_print }, /* print */ 192 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 193 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 194 { &vop_advlock_desc, spec_advlock }, /* advlock */ 195 { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ 196 { &vop_valloc_desc, spec_valloc }, /* valloc */ 197 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 198 { &vop_truncate_desc, spec_truncate }, /* truncate */ 199 { &vop_update_desc, lfs_update }, /* update */ 200 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 201 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 202 }; 203 struct vnodeopv_desc lfs_specop_opv_desc = 204 { &lfs_specop_p, lfs_specop_entries }; 205 206 int (**lfs_fifoop_p) __P((void *)); 207 struct vnodeopv_entry_desc lfs_fifoop_entries[] = { 208 { &vop_default_desc, vn_default_error }, 209 { &vop_lookup_desc, fifo_lookup }, /* lookup */ 210 { &vop_create_desc, fifo_create }, /* create */ 211 { &vop_mknod_desc, fifo_mknod }, /* mknod */ 212 { &vop_open_desc, fifo_open }, /* open */ 213 { &vop_close_desc, ufsfifo_close }, /* close */ 214 { &vop_access_desc, ufs_access }, /* access */ 215 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 216 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 217 { &vop_read_desc, ufsfifo_read }, /* read */ 218 { &vop_write_desc, ufsfifo_write }, /* write */ 219 { &vop_lease_desc, fifo_lease_check }, /* lease */ 220 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ 221 { &vop_poll_desc, fifo_poll }, /* poll */ 222 { &vop_revoke_desc, fifo_revoke }, /* revoke */ 223 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 224 { &vop_fsync_desc, fifo_fsync }, /* fsync */ 225 { &vop_seek_desc, fifo_seek }, /* seek */ 226 { &vop_remove_desc, fifo_remove }, /* remove */ 227 { &vop_link_desc, fifo_link }, /* link */ 228 { &vop_rename_desc, fifo_rename }, /* rename */ 229 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 230 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 231 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 232 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 233 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 234 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 235 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 236 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 237 { &vop_lock_desc, ufs_lock }, /* lock */ 238 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 239 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 240 { &vop_strategy_desc, fifo_strategy }, /* strategy */ 241 { &vop_print_desc, ufs_print }, /* print */ 242 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 243 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ 244 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 245 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ 246 { &vop_valloc_desc, fifo_valloc }, /* valloc */ 247 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 248 { &vop_truncate_desc, fifo_truncate }, /* truncate */ 249 { &vop_update_desc, lfs_update }, /* update */ 250 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 251 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 252 }; 253 struct vnodeopv_desc lfs_fifoop_opv_desc = 254 { &lfs_fifoop_p, lfs_fifoop_entries }; 255 256 #define LFS_READWRITE 257 #include <ufs/ufs/ufs_readwrite.c> 258 #undef LFS_READWRITE 259 260 /* 261 * Synch an open file. 262 */ 263 /* ARGSUSED */ 264 int 265 lfs_fsync(v) 266 void *v; 267 { 268 struct vop_fsync_args /* { 269 struct vnode *a_vp; 270 struct ucred *a_cred; 271 int a_flags; 272 struct proc *a_p; 273 } */ *ap = v; 274 275 return (VOP_UPDATE(ap->a_vp, NULL, NULL, 276 (ap->a_flags & FSYNC_WAIT) != 0 ? LFS_SYNC : 0)); /* XXX */ 277 } 278 279 /* 280 * These macros are used to bracket UFS directory ops, so that we can 281 * identify all the pages touched during directory ops which need to 282 * be ordered and flushed atomically, so that they may be recovered. 283 */ 284 /* 285 * XXX KS - Because we have to mark nodes VDIROP in order to prevent 286 * the cache from reclaiming them while a dirop is in progress, we must 287 * also manage the number of nodes so marked (otherwise we can run out). 288 * We do this by setting lfs_dirvcount to the number of marked vnodes; it 289 * is decremented during segment write, when VDIROP is taken off. 290 */ 291 #define SET_DIROP(fs) lfs_set_dirop(fs) 292 static int lfs_set_dirop __P((struct lfs *)); 293 294 static int lfs_set_dirop(fs) 295 struct lfs *fs; 296 { 297 int error; 298 299 while (fs->lfs_writer || fs->lfs_dirvcount>LFS_MAXDIROP) { 300 if(fs->lfs_writer) 301 tsleep(&fs->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); 302 if(fs->lfs_dirvcount > LFS_MAXDIROP) { 303 #ifdef DEBUG_LFS 304 printf("(dirvcount=%d)\n",fs->lfs_dirvcount); 305 #endif 306 if((error=tsleep(&fs->lfs_dirvcount, PCATCH|PUSER, "lfs_maxdirop", 0))!=0) 307 return error; 308 } 309 } 310 ++fs->lfs_dirops; 311 fs->lfs_doifile = 1; 312 313 return 0; 314 } 315 316 #define SET_ENDOP(fs,vp,str) { \ 317 --(fs)->lfs_dirops; \ 318 if (!(fs)->lfs_dirops) { \ 319 wakeup(&(fs)->lfs_writer); \ 320 lfs_check((vp),LFS_UNUSED_LBN,0); \ 321 } \ 322 } 323 324 #define MARK_VNODE(dvp) do { \ 325 if(!((dvp)->v_flag & VDIROP)) { \ 326 lfs_vref(dvp); \ 327 ++VTOI((dvp))->i_lfs->lfs_dirvcount; \ 328 } \ 329 (dvp)->v_flag |= VDIROP; \ 330 } while(0) 331 332 #define MAYBE_INACTIVE(fs,vp) do { \ 333 if((vp) && ((vp)->v_flag & VDIROP) && (vp)->v_usecount == 1 \ 334 && VTOI(vp) && VTOI(vp)->i_ffs_nlink == 0) \ 335 { \ 336 if (VOP_LOCK((vp), LK_EXCLUSIVE) == 0) { \ 337 VOP_INACTIVE((vp),curproc); \ 338 } \ 339 } \ 340 } while(0) 341 342 int 343 lfs_symlink(v) 344 void *v; 345 { 346 struct vop_symlink_args /* { 347 struct vnode *a_dvp; 348 struct vnode **a_vpp; 349 struct componentname *a_cnp; 350 struct vattr *a_vap; 351 char *a_target; 352 } */ *ap = v; 353 int ret; 354 355 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 356 return ret; 357 MARK_VNODE(ap->a_dvp); 358 ret = ufs_symlink(ap); 359 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 360 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"symilnk"); 361 return (ret); 362 } 363 364 int 365 lfs_mknod(v) 366 void *v; 367 { 368 struct vop_mknod_args /* { 369 struct vnode *a_dvp; 370 struct vnode **a_vpp; 371 struct componentname *a_cnp; 372 struct vattr *a_vap; 373 } */ *ap = v; 374 int ret; 375 376 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 377 return ret; 378 MARK_VNODE(ap->a_dvp); 379 ret = ufs_mknod(ap); 380 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 381 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mknod"); 382 return (ret); 383 } 384 385 int 386 lfs_create(v) 387 void *v; 388 { 389 struct vop_create_args /* { 390 struct vnode *a_dvp; 391 struct vnode **a_vpp; 392 struct componentname *a_cnp; 393 struct vattr *a_vap; 394 } */ *ap = v; 395 int ret; 396 397 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 398 return ret; 399 MARK_VNODE(ap->a_dvp); 400 ret = ufs_create(ap); 401 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 402 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"create"); 403 return (ret); 404 } 405 406 int 407 lfs_whiteout(v) 408 void *v; 409 { 410 struct vop_whiteout_args /* { 411 struct vnode *a_dvp; 412 struct componentname *a_cnp; 413 int a_flags; 414 } */ *ap = v; 415 int ret; 416 417 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 418 return ret; 419 MARK_VNODE(ap->a_dvp); 420 ret = ufs_whiteout(ap); 421 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"whiteout"); 422 return (ret); 423 } 424 425 int 426 lfs_mkdir(v) 427 void *v; 428 { 429 struct vop_mkdir_args /* { 430 struct vnode *a_dvp; 431 struct vnode **a_vpp; 432 struct componentname *a_cnp; 433 struct vattr *a_vap; 434 } */ *ap = v; 435 int ret; 436 437 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 438 return ret; 439 MARK_VNODE(ap->a_dvp); 440 ret = ufs_mkdir(ap); 441 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 442 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mkdir"); 443 return (ret); 444 } 445 446 int 447 lfs_remove(v) 448 void *v; 449 { 450 struct vop_remove_args /* { 451 struct vnode *a_dvp; 452 struct vnode *a_vp; 453 struct componentname *a_cnp; 454 } */ *ap = v; 455 int ret; 456 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 457 return ret; 458 MARK_VNODE(ap->a_dvp); 459 MARK_VNODE(ap->a_vp); 460 ret = ufs_remove(ap); 461 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 462 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"remove"); 463 return (ret); 464 } 465 466 int 467 lfs_rmdir(v) 468 void *v; 469 { 470 struct vop_rmdir_args /* { 471 struct vnodeop_desc *a_desc; 472 struct vnode *a_dvp; 473 struct vnode *a_vp; 474 struct componentname *a_cnp; 475 } */ *ap = v; 476 int ret; 477 478 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 479 return ret; 480 MARK_VNODE(ap->a_dvp); 481 MARK_VNODE(ap->a_vp); 482 ret = ufs_rmdir(ap); 483 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 484 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"rmdir"); 485 return (ret); 486 } 487 488 int 489 lfs_link(v) 490 void *v; 491 { 492 struct vop_link_args /* { 493 struct vnode *a_dvp; 494 struct vnode *a_vp; 495 struct componentname *a_cnp; 496 } */ *ap = v; 497 int ret; 498 499 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 500 return ret; 501 MARK_VNODE(ap->a_dvp); 502 ret = ufs_link(ap); 503 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"link"); 504 return (ret); 505 } 506 507 int 508 lfs_rename(v) 509 void *v; 510 { 511 struct vop_rename_args /* { 512 struct vnode *a_fdvp; 513 struct vnode *a_fvp; 514 struct componentname *a_fcnp; 515 struct vnode *a_tdvp; 516 struct vnode *a_tvp; 517 struct componentname *a_tcnp; 518 } */ *ap = v; 519 struct vnode *tvp, *fvp, *tdvp, *fdvp; 520 int error; 521 struct lfs *fs; 522 523 fs = VTOI(ap->a_fdvp)->i_lfs; 524 tvp = ap->a_tvp; 525 tdvp = ap->a_tdvp; 526 fvp = ap->a_fvp; 527 fdvp = ap->a_fdvp; 528 529 /* 530 * Check for cross-device rename. 531 * If it is, we don't want to set dirops, just error out. 532 * (In particular note that MARK_VNODE(tdvp) will DTWT on 533 * a cross-device rename.) 534 * 535 * Copied from ufs_rename. 536 */ 537 if ((fvp->v_mount != tdvp->v_mount) || 538 (tvp && (fvp->v_mount != tvp->v_mount))) { 539 error = EXDEV; 540 VOP_ABORTOP(tdvp, ap->a_tcnp); /* XXX, why not in NFS? */ 541 if (tdvp == tvp) 542 vrele(tdvp); 543 else 544 vput(tdvp); 545 if (tvp) 546 vput(tvp); 547 VOP_ABORTOP(fdvp, ap->a_fcnp); /* XXX, why not in NFS? */ 548 vrele(fdvp); 549 vrele(fvp); 550 return (error); 551 } 552 if((error=SET_DIROP(fs))!=0) 553 return (error); 554 MARK_VNODE(fdvp); 555 MARK_VNODE(tdvp); 556 error = ufs_rename(ap); 557 MAYBE_INACTIVE(fs,fvp); 558 MAYBE_INACTIVE(fs,tvp); 559 SET_ENDOP(fs,fdvp,"rename"); 560 return (error); 561 } 562 563 /* XXX hack to avoid calling ITIMES in getattr */ 564 int 565 lfs_getattr(v) 566 void *v; 567 { 568 struct vop_getattr_args /* { 569 struct vnode *a_vp; 570 struct vattr *a_vap; 571 struct ucred *a_cred; 572 struct proc *a_p; 573 } */ *ap = v; 574 register struct vnode *vp = ap->a_vp; 575 register struct inode *ip = VTOI(vp); 576 register struct vattr *vap = ap->a_vap; 577 /* 578 * Copy from inode table 579 */ 580 vap->va_fsid = ip->i_dev; 581 vap->va_fileid = ip->i_number; 582 vap->va_mode = ip->i_ffs_mode & ~IFMT; 583 vap->va_nlink = ip->i_ffs_nlink; 584 vap->va_uid = ip->i_ffs_uid; 585 vap->va_gid = ip->i_ffs_gid; 586 vap->va_rdev = (dev_t)ip->i_ffs_rdev; 587 vap->va_size = ip->i_ffs_size; 588 vap->va_atime.tv_sec = ip->i_ffs_atime; 589 vap->va_atime.tv_nsec = ip->i_ffs_atimensec; 590 vap->va_mtime.tv_sec = ip->i_ffs_mtime; 591 vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec; 592 vap->va_ctime.tv_sec = ip->i_ffs_ctime; 593 vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec; 594 vap->va_flags = ip->i_ffs_flags; 595 vap->va_gen = ip->i_ffs_gen; 596 /* this doesn't belong here */ 597 if (vp->v_type == VBLK) 598 vap->va_blocksize = BLKDEV_IOSIZE; 599 else if (vp->v_type == VCHR) 600 vap->va_blocksize = MAXBSIZE; 601 else 602 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 603 vap->va_bytes = dbtob((u_quad_t)ip->i_ffs_blocks); 604 vap->va_type = vp->v_type; 605 vap->va_filerev = ip->i_modrev; 606 return (0); 607 } 608 609 /* 610 * Close called 611 * 612 * XXX -- we were using ufs_close, but since it updates the 613 * times on the inode, we might need to bump the uinodes 614 * count. 615 */ 616 /* ARGSUSED */ 617 int 618 lfs_close(v) 619 void *v; 620 { 621 struct vop_close_args /* { 622 struct vnode *a_vp; 623 int a_fflag; 624 struct ucred *a_cred; 625 struct proc *a_p; 626 } */ *ap = v; 627 register struct vnode *vp = ap->a_vp; 628 register struct inode *ip = VTOI(vp); 629 int mod; 630 struct timespec ts; 631 632 simple_lock(&vp->v_interlock); 633 if (vp->v_usecount > 1) { 634 mod = ip->i_flag & IN_MODIFIED; 635 TIMEVAL_TO_TIMESPEC(&time, &ts); 636 LFS_ITIMES(ip, &ts, &ts, &ts); 637 if (!mod && ip->i_flag & IN_MODIFIED) 638 ip->i_lfs->lfs_uinodes++; 639 } 640 simple_unlock(&vp->v_interlock); 641 return (0); 642 } 643 644 /* 645 * Reclaim an inode so that it can be used for other purposes. 646 */ 647 int lfs_no_inactive = 0; 648 649 int 650 lfs_reclaim(v) 651 void *v; 652 { 653 struct vop_reclaim_args /* { 654 struct vnode *a_vp; 655 struct proc *a_p; 656 } */ *ap = v; 657 struct vnode *vp = ap->a_vp; 658 int error; 659 660 if ((error = ufs_reclaim(vp, ap->a_p))) 661 return (error); 662 pool_put(&lfs_inode_pool, vp->v_data); 663 vp->v_data = NULL; 664 return (0); 665 } 666
Indexes created Sun Oct 19 02:09:48 GMT 2025