lfs_vnops.c revision 1.25.2.1.2.2
1 /* $NetBSD: lfs_vnops.c,v 1.25.2.1.2.2 1999/06/21 15:50:49 thorpej 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/ffs/ffs_extern.h> 102 103 #include <ufs/lfs/lfs.h> 104 #include <ufs/lfs/lfs_extern.h> 105 106 /* Global vfs data structures for lfs. */ 107 int (**lfs_vnodeop_p) __P((void *)); 108 struct vnodeopv_entry_desc lfs_vnodeop_entries[] = { 109 { &vop_default_desc, vn_default_error }, 110 { &vop_lookup_desc, ufs_lookup }, /* lookup */ 111 { &vop_create_desc, lfs_create }, /* create */ 112 { &vop_whiteout_desc, lfs_whiteout }, /* whiteout */ 113 { &vop_mknod_desc, lfs_mknod }, /* mknod */ 114 { &vop_open_desc, ufs_open }, /* open */ 115 { &vop_close_desc, lfs_close }, /* close */ 116 { &vop_access_desc, ufs_access }, /* access */ 117 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 118 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 119 { &vop_read_desc, lfs_read }, /* read */ 120 { &vop_write_desc, lfs_write }, /* write */ 121 { &vop_lease_desc, ufs_lease_check }, /* lease */ 122 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 123 { &vop_poll_desc, ufs_poll }, /* poll */ 124 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 125 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 126 { &vop_fsync_desc, lfs_fsync }, /* fsync */ 127 { &vop_seek_desc, ufs_seek }, /* seek */ 128 { &vop_remove_desc, lfs_remove }, /* remove */ 129 { &vop_link_desc, lfs_link }, /* link */ 130 { &vop_rename_desc, lfs_rename }, /* rename */ 131 { &vop_mkdir_desc, lfs_mkdir }, /* mkdir */ 132 { &vop_rmdir_desc, lfs_rmdir }, /* rmdir */ 133 { &vop_symlink_desc, lfs_symlink }, /* symlink */ 134 { &vop_readdir_desc, ufs_readdir }, /* readdir */ 135 { &vop_readlink_desc, ufs_readlink }, /* readlink */ 136 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 137 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 138 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 139 { &vop_lock_desc, ufs_lock }, /* lock */ 140 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 141 { &vop_bmap_desc, ufs_bmap }, /* bmap */ 142 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 143 { &vop_print_desc, ufs_print }, /* print */ 144 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 145 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 146 { &vop_advlock_desc, ufs_advlock }, /* advlock */ 147 { &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */ 148 { &vop_valloc_desc, lfs_valloc }, /* valloc */ 149 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 150 { &vop_truncate_desc, lfs_truncate }, /* truncate */ 151 { &vop_update_desc, lfs_update }, /* update */ 152 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 153 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 154 }; 155 struct vnodeopv_desc lfs_vnodeop_opv_desc = 156 { &lfs_vnodeop_p, lfs_vnodeop_entries }; 157 158 int (**lfs_specop_p) __P((void *)); 159 struct vnodeopv_entry_desc lfs_specop_entries[] = { 160 { &vop_default_desc, vn_default_error }, 161 { &vop_lookup_desc, spec_lookup }, /* lookup */ 162 { &vop_create_desc, spec_create }, /* create */ 163 { &vop_mknod_desc, spec_mknod }, /* mknod */ 164 { &vop_open_desc, spec_open }, /* open */ 165 { &vop_close_desc, ufsspec_close }, /* close */ 166 { &vop_access_desc, ufs_access }, /* access */ 167 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 168 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 169 { &vop_read_desc, ufsspec_read }, /* read */ 170 { &vop_write_desc, ufsspec_write }, /* write */ 171 { &vop_lease_desc, spec_lease_check }, /* lease */ 172 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 173 { &vop_poll_desc, spec_poll }, /* poll */ 174 { &vop_revoke_desc, spec_revoke }, /* revoke */ 175 { &vop_mmap_desc, spec_mmap }, /* mmap */ 176 { &vop_fsync_desc, spec_fsync }, /* fsync */ 177 { &vop_seek_desc, spec_seek }, /* seek */ 178 { &vop_remove_desc, spec_remove }, /* remove */ 179 { &vop_link_desc, spec_link }, /* link */ 180 { &vop_rename_desc, spec_rename }, /* rename */ 181 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 182 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 183 { &vop_symlink_desc, spec_symlink }, /* symlink */ 184 { &vop_readdir_desc, spec_readdir }, /* readdir */ 185 { &vop_readlink_desc, spec_readlink }, /* readlink */ 186 { &vop_abortop_desc, spec_abortop }, /* abortop */ 187 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 188 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 189 { &vop_lock_desc, ufs_lock }, /* lock */ 190 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 191 { &vop_bmap_desc, spec_bmap }, /* bmap */ 192 { &vop_strategy_desc, spec_strategy }, /* strategy */ 193 { &vop_print_desc, ufs_print }, /* print */ 194 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 195 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 196 { &vop_advlock_desc, spec_advlock }, /* advlock */ 197 { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ 198 { &vop_valloc_desc, spec_valloc }, /* valloc */ 199 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 200 { &vop_truncate_desc, spec_truncate }, /* truncate */ 201 { &vop_update_desc, lfs_update }, /* update */ 202 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 203 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 204 }; 205 struct vnodeopv_desc lfs_specop_opv_desc = 206 { &lfs_specop_p, lfs_specop_entries }; 207 208 int (**lfs_fifoop_p) __P((void *)); 209 struct vnodeopv_entry_desc lfs_fifoop_entries[] = { 210 { &vop_default_desc, vn_default_error }, 211 { &vop_lookup_desc, fifo_lookup }, /* lookup */ 212 { &vop_create_desc, fifo_create }, /* create */ 213 { &vop_mknod_desc, fifo_mknod }, /* mknod */ 214 { &vop_open_desc, fifo_open }, /* open */ 215 { &vop_close_desc, ufsfifo_close }, /* close */ 216 { &vop_access_desc, ufs_access }, /* access */ 217 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 218 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 219 { &vop_read_desc, ufsfifo_read }, /* read */ 220 { &vop_write_desc, ufsfifo_write }, /* write */ 221 { &vop_lease_desc, fifo_lease_check }, /* lease */ 222 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ 223 { &vop_poll_desc, fifo_poll }, /* poll */ 224 { &vop_revoke_desc, fifo_revoke }, /* revoke */ 225 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 226 { &vop_fsync_desc, fifo_fsync }, /* fsync */ 227 { &vop_seek_desc, fifo_seek }, /* seek */ 228 { &vop_remove_desc, fifo_remove }, /* remove */ 229 { &vop_link_desc, fifo_link }, /* link */ 230 { &vop_rename_desc, fifo_rename }, /* rename */ 231 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 232 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 233 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 234 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 235 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 236 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 237 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 238 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 239 { &vop_lock_desc, ufs_lock }, /* lock */ 240 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 241 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 242 { &vop_strategy_desc, fifo_strategy }, /* strategy */ 243 { &vop_print_desc, ufs_print }, /* print */ 244 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 245 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ 246 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 247 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ 248 { &vop_valloc_desc, fifo_valloc }, /* valloc */ 249 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 250 { &vop_truncate_desc, fifo_truncate }, /* truncate */ 251 { &vop_update_desc, lfs_update }, /* update */ 252 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 253 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 254 }; 255 struct vnodeopv_desc lfs_fifoop_opv_desc = 256 { &lfs_fifoop_p, lfs_fifoop_entries }; 257 258 #define LFS_READWRITE 259 #include <ufs/ufs/ufs_readwrite.c> 260 #undef LFS_READWRITE 261 262 /* 263 * Synch an open file. 264 */ 265 /* ARGSUSED */ 266 int 267 lfs_fsync(v) 268 void *v; 269 { 270 struct vop_fsync_args /* { 271 struct vnode *a_vp; 272 struct ucred *a_cred; 273 int a_flags; 274 struct proc *a_p; 275 } */ *ap = v; 276 277 return (VOP_UPDATE(ap->a_vp, NULL, NULL, 278 (ap->a_flags & FSYNC_WAIT) != 0 ? LFS_SYNC : 0)); /* XXX */ 279 } 280 281 /* 282 * These macros are used to bracket UFS directory ops, so that we can 283 * identify all the pages touched during directory ops which need to 284 * be ordered and flushed atomically, so that they may be recovered. 285 */ 286 /* 287 * XXX KS - Because we have to mark nodes VDIROP in order to prevent 288 * the cache from reclaiming them while a dirop is in progress, we must 289 * also manage the number of nodes so marked (otherwise we can run out). 290 * We do this by setting lfs_dirvcount to the number of marked vnodes; it 291 * is decremented during segment write, when VDIROP is taken off. 292 */ 293 #define SET_DIROP(fs) lfs_set_dirop(fs) 294 static int lfs_set_dirop __P((struct lfs *)); 295 296 static int lfs_set_dirop(fs) 297 struct lfs *fs; 298 { 299 int error; 300 301 while (fs->lfs_writer || fs->lfs_dirvcount>LFS_MAXDIROP) { 302 if(fs->lfs_writer) 303 tsleep(&fs->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); 304 if(fs->lfs_dirvcount > LFS_MAXDIROP) { 305 #ifdef DEBUG_LFS 306 printf("(dirvcount=%d)\n",fs->lfs_dirvcount); 307 #endif 308 if((error=tsleep(&fs->lfs_dirvcount, PCATCH|PUSER, "lfs_maxdirop", 0))!=0) 309 return error; 310 } 311 } 312 ++fs->lfs_dirops; 313 fs->lfs_doifile = 1; 314 315 return 0; 316 } 317 318 #define SET_ENDOP(fs,vp,str) { \ 319 --(fs)->lfs_dirops; \ 320 if (!(fs)->lfs_dirops) { \ 321 wakeup(&(fs)->lfs_writer); \ 322 lfs_check((vp),LFS_UNUSED_LBN,0); \ 323 } \ 324 } 325 326 #define MARK_VNODE(dvp) do { \ 327 if(!((dvp)->v_flag & VDIROP)) { \ 328 lfs_vref(dvp); \ 329 ++VTOI((dvp))->i_lfs->lfs_dirvcount; \ 330 } \ 331 (dvp)->v_flag |= VDIROP; \ 332 } while(0) 333 334 #define MAYBE_INACTIVE(fs,vp) do { \ 335 if((vp) && ((vp)->v_flag & VDIROP) && (vp)->v_usecount == 1 \ 336 && VTOI(vp) && VTOI(vp)->i_ffs_nlink == 0) \ 337 { \ 338 if (VOP_LOCK((vp), LK_EXCLUSIVE) == 0) { \ 339 VOP_INACTIVE((vp),curproc); \ 340 } \ 341 } \ 342 } while(0) 343 344 int 345 lfs_symlink(v) 346 void *v; 347 { 348 struct vop_symlink_args /* { 349 struct vnode *a_dvp; 350 struct vnode **a_vpp; 351 struct componentname *a_cnp; 352 struct vattr *a_vap; 353 char *a_target; 354 } */ *ap = v; 355 int ret; 356 357 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 358 return ret; 359 MARK_VNODE(ap->a_dvp); 360 ret = ufs_symlink(ap); 361 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 362 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"symilnk"); 363 return (ret); 364 } 365 366 int 367 lfs_mknod(v) 368 void *v; 369 { 370 struct vop_mknod_args /* { 371 struct vnode *a_dvp; 372 struct vnode **a_vpp; 373 struct componentname *a_cnp; 374 struct vattr *a_vap; 375 } */ *ap = v; 376 int ret; 377 378 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 379 return ret; 380 MARK_VNODE(ap->a_dvp); 381 ret = ufs_mknod(ap); 382 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 383 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mknod"); 384 return (ret); 385 } 386 387 int 388 lfs_create(v) 389 void *v; 390 { 391 struct vop_create_args /* { 392 struct vnode *a_dvp; 393 struct vnode **a_vpp; 394 struct componentname *a_cnp; 395 struct vattr *a_vap; 396 } */ *ap = v; 397 int ret; 398 399 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 400 return ret; 401 MARK_VNODE(ap->a_dvp); 402 ret = ufs_create(ap); 403 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 404 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"create"); 405 return (ret); 406 } 407 408 int 409 lfs_whiteout(v) 410 void *v; 411 { 412 struct vop_whiteout_args /* { 413 struct vnode *a_dvp; 414 struct componentname *a_cnp; 415 int a_flags; 416 } */ *ap = v; 417 int ret; 418 419 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 420 return ret; 421 MARK_VNODE(ap->a_dvp); 422 ret = ufs_whiteout(ap); 423 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"whiteout"); 424 return (ret); 425 } 426 427 int 428 lfs_mkdir(v) 429 void *v; 430 { 431 struct vop_mkdir_args /* { 432 struct vnode *a_dvp; 433 struct vnode **a_vpp; 434 struct componentname *a_cnp; 435 struct vattr *a_vap; 436 } */ *ap = v; 437 int ret; 438 439 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 440 return ret; 441 MARK_VNODE(ap->a_dvp); 442 ret = ufs_mkdir(ap); 443 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 444 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mkdir"); 445 return (ret); 446 } 447 448 int 449 lfs_remove(v) 450 void *v; 451 { 452 struct vop_remove_args /* { 453 struct vnode *a_dvp; 454 struct vnode *a_vp; 455 struct componentname *a_cnp; 456 } */ *ap = v; 457 int ret; 458 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 459 return ret; 460 MARK_VNODE(ap->a_dvp); 461 MARK_VNODE(ap->a_vp); 462 ret = ufs_remove(ap); 463 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 464 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"remove"); 465 return (ret); 466 } 467 468 int 469 lfs_rmdir(v) 470 void *v; 471 { 472 struct vop_rmdir_args /* { 473 struct vnodeop_desc *a_desc; 474 struct vnode *a_dvp; 475 struct vnode *a_vp; 476 struct componentname *a_cnp; 477 } */ *ap = v; 478 int ret; 479 480 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 481 return ret; 482 MARK_VNODE(ap->a_dvp); 483 MARK_VNODE(ap->a_vp); 484 ret = ufs_rmdir(ap); 485 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 486 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"rmdir"); 487 return (ret); 488 } 489 490 int 491 lfs_link(v) 492 void *v; 493 { 494 struct vop_link_args /* { 495 struct vnode *a_dvp; 496 struct vnode *a_vp; 497 struct componentname *a_cnp; 498 } */ *ap = v; 499 int ret; 500 501 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 502 return ret; 503 MARK_VNODE(ap->a_dvp); 504 ret = ufs_link(ap); 505 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"link"); 506 return (ret); 507 } 508 509 int 510 lfs_rename(v) 511 void *v; 512 { 513 struct vop_rename_args /* { 514 struct vnode *a_fdvp; 515 struct vnode *a_fvp; 516 struct componentname *a_fcnp; 517 struct vnode *a_tdvp; 518 struct vnode *a_tvp; 519 struct componentname *a_tcnp; 520 } */ *ap = v; 521 int ret; 522 523 if((ret=SET_DIROP(VTOI(ap->a_fdvp)->i_lfs))!=0) 524 return ret; 525 MARK_VNODE(ap->a_fdvp); 526 MARK_VNODE(ap->a_tdvp); 527 ret = ufs_rename(ap); 528 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_fvp); 529 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_tvp); 530 SET_ENDOP(VTOI(ap->a_fdvp)->i_lfs,ap->a_fdvp,"rename"); 531 return (ret); 532 } 533 534 /* XXX hack to avoid calling ITIMES in getattr */ 535 int 536 lfs_getattr(v) 537 void *v; 538 { 539 struct vop_getattr_args /* { 540 struct vnode *a_vp; 541 struct vattr *a_vap; 542 struct ucred *a_cred; 543 struct proc *a_p; 544 } */ *ap = v; 545 register struct vnode *vp = ap->a_vp; 546 register struct inode *ip = VTOI(vp); 547 register struct vattr *vap = ap->a_vap; 548 /* 549 * Copy from inode table 550 */ 551 vap->va_fsid = ip->i_dev; 552 vap->va_fileid = ip->i_number; 553 vap->va_mode = ip->i_ffs_mode & ~IFMT; 554 vap->va_nlink = ip->i_ffs_nlink; 555 vap->va_uid = ip->i_ffs_uid; 556 vap->va_gid = ip->i_ffs_gid; 557 vap->va_rdev = (dev_t)ip->i_ffs_rdev; 558 vap->va_size = ip->i_ffs_size; 559 vap->va_atime.tv_sec = ip->i_ffs_atime; 560 vap->va_atime.tv_nsec = ip->i_ffs_atimensec; 561 vap->va_mtime.tv_sec = ip->i_ffs_mtime; 562 vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec; 563 vap->va_ctime.tv_sec = ip->i_ffs_ctime; 564 vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec; 565 vap->va_flags = ip->i_ffs_flags; 566 vap->va_gen = ip->i_ffs_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((u_quad_t)ip->i_ffs_blocks); 575 vap->va_type = vp->v_type; 576 vap->va_filerev = ip->i_modrev; 577 return (0); 578 } 579 580 /* 581 * Close called 582 * 583 * XXX -- we were using ufs_close, but since it updates the 584 * times on the inode, we might need to bump the uinodes 585 * count. 586 */ 587 /* ARGSUSED */ 588 int 589 lfs_close(v) 590 void *v; 591 { 592 struct vop_close_args /* { 593 struct vnode *a_vp; 594 int a_fflag; 595 struct ucred *a_cred; 596 struct proc *a_p; 597 } */ *ap = v; 598 register struct vnode *vp = ap->a_vp; 599 register struct inode *ip = VTOI(vp); 600 int mod; 601 struct timespec ts; 602 603 simple_lock(&vp->v_interlock); 604 if (vp->v_usecount > 1) { 605 mod = ip->i_flag & IN_MODIFIED; 606 TIMEVAL_TO_TIMESPEC(&time, &ts); 607 LFS_ITIMES(ip, &ts, &ts, &ts); 608 if (!mod && ip->i_flag & IN_MODIFIED) 609 ip->i_lfs->lfs_uinodes++; 610 } 611 simple_unlock(&vp->v_interlock); 612 return (0); 613 } 614 615 /* 616 * Reclaim an inode so that it can be used for other purposes. 617 */ 618 int lfs_no_inactive = 0; 619 620 int 621 lfs_reclaim(v) 622 void *v; 623 { 624 struct vop_reclaim_args /* { 625 struct vnode *a_vp; 626 struct proc *a_p; 627 } */ *ap = v; 628 struct vnode *vp = ap->a_vp; 629 int error; 630 631 if ((error = ufs_reclaim(vp, ap->a_p))) 632 return (error); 633 pool_put(&lfs_inode_pool, vp->v_data); 634 vp->v_data = NULL; 635 return (0); 636 } 637
Indexes created Mon Oct 20 20:10:13 GMT 2025