lfs_vnops.c revision 1.31.2.2
1 /* $NetBSD: lfs_vnops.c,v 1.31.2.2 1999/11/06 20:33:07 perseant 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_fcntl_desc, ufs_fcntl }, /* fcntl */ 122 { &vop_poll_desc, ufs_poll }, /* poll */ 123 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 124 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 125 { &vop_fsync_desc, lfs_fsync }, /* fsync */ 126 { &vop_seek_desc, ufs_seek }, /* seek */ 127 { &vop_remove_desc, lfs_remove }, /* remove */ 128 { &vop_link_desc, lfs_link }, /* link */ 129 { &vop_rename_desc, lfs_rename }, /* rename */ 130 { &vop_mkdir_desc, lfs_mkdir }, /* mkdir */ 131 { &vop_rmdir_desc, lfs_rmdir }, /* rmdir */ 132 { &vop_symlink_desc, lfs_symlink }, /* symlink */ 133 { &vop_readdir_desc, ufs_readdir }, /* readdir */ 134 { &vop_readlink_desc, ufs_readlink }, /* readlink */ 135 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 136 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 137 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 138 { &vop_lock_desc, ufs_lock }, /* lock */ 139 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 140 { &vop_bmap_desc, ufs_bmap }, /* bmap */ 141 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 142 { &vop_print_desc, ufs_print }, /* print */ 143 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 144 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 145 { &vop_advlock_desc, ufs_advlock }, /* advlock */ 146 { &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */ 147 { &vop_valloc_desc, lfs_valloc }, /* valloc */ 148 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 149 { &vop_truncate_desc, lfs_truncate }, /* truncate */ 150 { &vop_update_desc, lfs_update }, /* update */ 151 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 152 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 153 }; 154 struct vnodeopv_desc lfs_vnodeop_opv_desc = 155 { &lfs_vnodeop_p, lfs_vnodeop_entries }; 156 157 int (**lfs_specop_p) __P((void *)); 158 struct vnodeopv_entry_desc lfs_specop_entries[] = { 159 { &vop_default_desc, vn_default_error }, 160 { &vop_lookup_desc, spec_lookup }, /* lookup */ 161 { &vop_create_desc, spec_create }, /* create */ 162 { &vop_mknod_desc, spec_mknod }, /* mknod */ 163 { &vop_open_desc, spec_open }, /* open */ 164 { &vop_close_desc, ufsspec_close }, /* close */ 165 { &vop_access_desc, ufs_access }, /* access */ 166 { &vop_getattr_desc, lfs_getattr }, /* getattr */ 167 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 168 { &vop_read_desc, ufsspec_read }, /* read */ 169 { &vop_write_desc, ufsspec_write }, /* write */ 170 { &vop_lease_desc, spec_lease_check }, /* lease */ 171 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 172 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 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, vn_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_fcntl_desc, ufs_fcntl }, /* fcntl */ 224 { &vop_poll_desc, fifo_poll }, /* poll */ 225 { &vop_revoke_desc, fifo_revoke }, /* revoke */ 226 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 227 { &vop_fsync_desc, fifo_fsync }, /* fsync */ 228 { &vop_seek_desc, fifo_seek }, /* seek */ 229 { &vop_remove_desc, fifo_remove }, /* remove */ 230 { &vop_link_desc, fifo_link }, /* link */ 231 { &vop_rename_desc, fifo_rename }, /* rename */ 232 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 233 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 234 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 235 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 236 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 237 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 238 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 239 { &vop_reclaim_desc, lfs_reclaim }, /* reclaim */ 240 { &vop_lock_desc, ufs_lock }, /* lock */ 241 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 242 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 243 { &vop_strategy_desc, fifo_strategy }, /* strategy */ 244 { &vop_print_desc, ufs_print }, /* print */ 245 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 246 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ 247 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 248 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ 249 { &vop_valloc_desc, fifo_valloc }, /* valloc */ 250 { &vop_vfree_desc, lfs_vfree }, /* vfree */ 251 { &vop_truncate_desc, fifo_truncate }, /* truncate */ 252 { &vop_update_desc, lfs_update }, /* update */ 253 { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */ 254 { (struct vnodeop_desc*)NULL, (int(*) __P((void *)))NULL } 255 }; 256 struct vnodeopv_desc lfs_fifoop_opv_desc = 257 { &lfs_fifoop_p, lfs_fifoop_entries }; 258 259 #define LFS_READWRITE 260 #include <ufs/ufs/ufs_readwrite.c> 261 #undef LFS_READWRITE 262 263 /* 264 * Synch an open file. 265 */ 266 /* ARGSUSED */ 267 int 268 lfs_fsync(v) 269 void *v; 270 { 271 struct vop_fsync_args /* { 272 struct vnode *a_vp; 273 struct ucred *a_cred; 274 int a_flags; 275 struct proc *a_p; 276 } */ *ap = v; 277 278 return (VOP_UPDATE(ap->a_vp, NULL, NULL, 279 (ap->a_flags & FSYNC_WAIT) != 0 ? LFS_SYNC : 0)); /* XXX */ 280 } 281 282 /* 283 * These macros are used to bracket UFS directory ops, so that we can 284 * identify all the pages touched during directory ops which need to 285 * be ordered and flushed atomically, so that they may be recovered. 286 */ 287 /* 288 * XXX KS - Because we have to mark nodes VDIROP in order to prevent 289 * the cache from reclaiming them while a dirop is in progress, we must 290 * also manage the number of nodes so marked (otherwise we can run out). 291 * We do this by setting lfs_dirvcount to the number of marked vnodes; it 292 * is decremented during segment write, when VDIROP is taken off. 293 */ 294 #define SET_DIROP(fs) lfs_set_dirop(fs) 295 static int lfs_set_dirop __P((struct lfs *)); 296 extern int lfs_dirvcount; 297 298 static int lfs_set_dirop(fs) 299 struct lfs *fs; 300 { 301 int error; 302 303 while (fs->lfs_writer || lfs_dirvcount>LFS_MAXDIROP) { 304 if(fs->lfs_writer) 305 tsleep(&fs->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); 306 if(lfs_dirvcount > LFS_MAXDIROP) { 307 #ifdef DEBUG_LFS 308 printf("(dirvcount=%d)\n",lfs_dirvcount); 309 #endif 310 if((error=tsleep(&lfs_dirvcount, PCATCH|PUSER, "lfs_maxdirop", 0))!=0) 311 return error; 312 } 313 } 314 ++fs->lfs_dirops; 315 fs->lfs_doifile = 1; 316 317 return 0; 318 } 319 320 #define SET_ENDOP(fs,vp,str) { \ 321 --(fs)->lfs_dirops; \ 322 if (!(fs)->lfs_dirops) { \ 323 wakeup(&(fs)->lfs_writer); \ 324 lfs_check((vp),LFS_UNUSED_LBN,0); \ 325 } \ 326 } 327 328 #define MARK_VNODE(dvp) do { \ 329 if(!((dvp)->v_flag & VDIROP)) { \ 330 lfs_vref(dvp); \ 331 ++lfs_dirvcount; \ 332 } \ 333 (dvp)->v_flag |= VDIROP; \ 334 } while(0) 335 336 #define MAYBE_INACTIVE(fs,vp) do { \ 337 if((vp) && ((vp)->v_flag & VDIROP) && (vp)->v_usecount == 1 \ 338 && VTOI(vp) && VTOI(vp)->i_ffs_nlink == 0) \ 339 { \ 340 if (VOP_LOCK((vp), LK_EXCLUSIVE) == 0) { \ 341 VOP_INACTIVE((vp),curproc); \ 342 } \ 343 } \ 344 } while(0) 345 346 int 347 lfs_symlink(v) 348 void *v; 349 { 350 struct vop_symlink_args /* { 351 struct vnode *a_dvp; 352 struct vnode **a_vpp; 353 struct componentname *a_cnp; 354 struct vattr *a_vap; 355 char *a_target; 356 } */ *ap = v; 357 int ret; 358 359 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 360 return ret; 361 MARK_VNODE(ap->a_dvp); 362 ret = ufs_symlink(ap); 363 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 364 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"symilnk"); 365 return (ret); 366 } 367 368 int 369 lfs_mknod(v) 370 void *v; 371 { 372 struct vop_mknod_args /* { 373 struct vnode *a_dvp; 374 struct vnode **a_vpp; 375 struct componentname *a_cnp; 376 struct vattr *a_vap; 377 } */ *ap = v; 378 struct vattr *vap = ap->a_vap; 379 struct vnode **vpp = ap->a_vpp; 380 struct inode *ip; 381 int error; 382 383 if((error=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 384 return error; 385 MARK_VNODE(ap->a_dvp); 386 error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), 387 ap->a_dvp, vpp, ap->a_cnp); 388 389 /* Either way we're done with the dirop at this point */ 390 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mknod"); 391 392 if (error) 393 return (error); 394 395 ip = VTOI(*vpp); 396 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 397 if (vap->va_rdev != VNOVAL) { 398 /* 399 * Want to be able to use this to make badblock 400 * inodes, so don't truncate the dev number. 401 */ 402 #if 0 403 ip->i_ffs_rdev = ufs_rw32(vap->va_rdev, 404 UFS_MPNEEDSWAP((*vpp)->v_mount)); 405 #else 406 ip->i_ffs_rdev = vap->va_rdev; 407 #endif 408 } 409 /* 410 * Call fsync to write the vnode so that we don't have to deal with 411 * flushing it when it's marked VDIROP|VXLOCK. 412 * 413 * XXX KS - If we can't flush we also can't call vgone(), so must 414 * return. But, that leaves this vnode in limbo, also not good. 415 * Can this ever happen (barring hardware failure)? 416 */ 417 if ((error = VOP_FSYNC(*vpp, NOCRED, FSYNC_WAIT, curproc)) != 0) 418 return (error); 419 /* 420 * Remove inode so that it will be reloaded by VFS_VGET and 421 * checked to see if it is an alias of an existing entry in 422 * the inode cache. 423 */ 424 /* Used to be vput, but that causes us to call VOP_INACTIVE twice. */ 425 VOP_UNLOCK(*vpp,0); 426 lfs_vunref(*vpp); 427 (*vpp)->v_type = VNON; 428 vgone(*vpp); 429 *vpp = 0; 430 return (0); 431 } 432 433 int 434 lfs_create(v) 435 void *v; 436 { 437 struct vop_create_args /* { 438 struct vnode *a_dvp; 439 struct vnode **a_vpp; 440 struct componentname *a_cnp; 441 struct vattr *a_vap; 442 } */ *ap = v; 443 int ret; 444 445 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 446 return ret; 447 MARK_VNODE(ap->a_dvp); 448 ret = ufs_create(ap); 449 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 450 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"create"); 451 return (ret); 452 } 453 454 int 455 lfs_whiteout(v) 456 void *v; 457 { 458 struct vop_whiteout_args /* { 459 struct vnode *a_dvp; 460 struct componentname *a_cnp; 461 int a_flags; 462 } */ *ap = v; 463 int ret; 464 465 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 466 return ret; 467 MARK_VNODE(ap->a_dvp); 468 ret = ufs_whiteout(ap); 469 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"whiteout"); 470 return (ret); 471 } 472 473 int 474 lfs_mkdir(v) 475 void *v; 476 { 477 struct vop_mkdir_args /* { 478 struct vnode *a_dvp; 479 struct vnode **a_vpp; 480 struct componentname *a_cnp; 481 struct vattr *a_vap; 482 } */ *ap = v; 483 int ret; 484 485 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 486 return ret; 487 MARK_VNODE(ap->a_dvp); 488 ret = ufs_mkdir(ap); 489 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 490 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mkdir"); 491 return (ret); 492 } 493 494 int 495 lfs_remove(v) 496 void *v; 497 { 498 struct vop_remove_args /* { 499 struct vnode *a_dvp; 500 struct vnode *a_vp; 501 struct componentname *a_cnp; 502 } */ *ap = v; 503 int ret; 504 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 505 return ret; 506 MARK_VNODE(ap->a_dvp); 507 MARK_VNODE(ap->a_vp); 508 ret = ufs_remove(ap); 509 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 510 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"remove"); 511 return (ret); 512 } 513 514 int 515 lfs_rmdir(v) 516 void *v; 517 { 518 struct vop_rmdir_args /* { 519 struct vnodeop_desc *a_desc; 520 struct vnode *a_dvp; 521 struct vnode *a_vp; 522 struct componentname *a_cnp; 523 } */ *ap = v; 524 int ret; 525 526 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 527 return ret; 528 MARK_VNODE(ap->a_dvp); 529 MARK_VNODE(ap->a_vp); 530 ret = ufs_rmdir(ap); 531 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 532 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"rmdir"); 533 return (ret); 534 } 535 536 int 537 lfs_link(v) 538 void *v; 539 { 540 struct vop_link_args /* { 541 struct vnode *a_dvp; 542 struct vnode *a_vp; 543 struct componentname *a_cnp; 544 } */ *ap = v; 545 int ret; 546 547 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 548 return ret; 549 MARK_VNODE(ap->a_dvp); 550 ret = ufs_link(ap); 551 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"link"); 552 return (ret); 553 } 554 555 int 556 lfs_rename(v) 557 void *v; 558 { 559 struct vop_rename_args /* { 560 struct vnode *a_fdvp; 561 struct vnode *a_fvp; 562 struct componentname *a_fcnp; 563 struct vnode *a_tdvp; 564 struct vnode *a_tvp; 565 struct componentname *a_tcnp; 566 } */ *ap = v; 567 struct vnode *tvp, *fvp, *tdvp, *fdvp; 568 int error; 569 struct lfs *fs; 570 571 fs = VTOI(ap->a_fdvp)->i_lfs; 572 tvp = ap->a_tvp; 573 tdvp = ap->a_tdvp; 574 fvp = ap->a_fvp; 575 fdvp = ap->a_fdvp; 576 577 /* 578 * Check for cross-device rename. 579 * If it is, we don't want to set dirops, just error out. 580 * (In particular note that MARK_VNODE(tdvp) will DTWT on 581 * a cross-device rename.) 582 * 583 * Copied from ufs_rename. 584 */ 585 if ((fvp->v_mount != tdvp->v_mount) || 586 (tvp && (fvp->v_mount != tvp->v_mount))) { 587 error = EXDEV; 588 VOP_ABORTOP(tdvp, ap->a_tcnp); /* XXX, why not in NFS? */ 589 if (tdvp == tvp) 590 vrele(tdvp); 591 else 592 vput(tdvp); 593 if (tvp) 594 vput(tvp); 595 VOP_ABORTOP(fdvp, ap->a_fcnp); /* XXX, why not in NFS? */ 596 vrele(fdvp); 597 vrele(fvp); 598 return (error); 599 } 600 if((error=SET_DIROP(fs))!=0) 601 return (error); 602 MARK_VNODE(fdvp); 603 MARK_VNODE(tdvp); 604 error = ufs_rename(ap); 605 MAYBE_INACTIVE(fs,fvp); 606 MAYBE_INACTIVE(fs,tvp); 607 SET_ENDOP(fs,fdvp,"rename"); 608 return (error); 609 } 610 611 /* XXX hack to avoid calling ITIMES in getattr */ 612 int 613 lfs_getattr(v) 614 void *v; 615 { 616 struct vop_getattr_args /* { 617 struct vnode *a_vp; 618 struct vattr *a_vap; 619 struct ucred *a_cred; 620 struct proc *a_p; 621 } */ *ap = v; 622 register struct vnode *vp = ap->a_vp; 623 register struct inode *ip = VTOI(vp); 624 register struct vattr *vap = ap->a_vap; 625 /* 626 * Copy from inode table 627 */ 628 vap->va_fsid = ip->i_dev; 629 vap->va_fileid = ip->i_number; 630 vap->va_mode = ip->i_ffs_mode & ~IFMT; 631 vap->va_nlink = ip->i_ffs_nlink; 632 vap->va_uid = ip->i_ffs_uid; 633 vap->va_gid = ip->i_ffs_gid; 634 vap->va_rdev = (dev_t)ip->i_ffs_rdev; 635 vap->va_size = ip->i_ffs_size; 636 vap->va_atime.tv_sec = ip->i_ffs_atime; 637 vap->va_atime.tv_nsec = ip->i_ffs_atimensec; 638 vap->va_mtime.tv_sec = ip->i_ffs_mtime; 639 vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec; 640 vap->va_ctime.tv_sec = ip->i_ffs_ctime; 641 vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec; 642 vap->va_flags = ip->i_ffs_flags; 643 vap->va_gen = ip->i_ffs_gen; 644 /* this doesn't belong here */ 645 if (vp->v_type == VBLK) 646 vap->va_blocksize = BLKDEV_IOSIZE; 647 else if (vp->v_type == VCHR) 648 vap->va_blocksize = MAXBSIZE; 649 else 650 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 651 vap->va_bytes = dbtob((u_quad_t)ip->i_ffs_blocks); 652 vap->va_type = vp->v_type; 653 vap->va_filerev = ip->i_modrev; 654 return (0); 655 } 656 657 /* 658 * Close called 659 * 660 * XXX -- we were using ufs_close, but since it updates the 661 * times on the inode, we might need to bump the uinodes 662 * count. 663 */ 664 /* ARGSUSED */ 665 int 666 lfs_close(v) 667 void *v; 668 { 669 struct vop_close_args /* { 670 struct vnode *a_vp; 671 int a_fflag; 672 struct ucred *a_cred; 673 struct proc *a_p; 674 } */ *ap = v; 675 register struct vnode *vp = ap->a_vp; 676 register struct inode *ip = VTOI(vp); 677 int mod; 678 struct timespec ts; 679 680 simple_lock(&vp->v_interlock); 681 if (vp->v_usecount > 1) { 682 mod = ip->i_flag & IN_MODIFIED; 683 TIMEVAL_TO_TIMESPEC(&time, &ts); 684 LFS_ITIMES(ip, &ts, &ts, &ts); 685 if (!mod && ip->i_flag & IN_MODIFIED) 686 ip->i_lfs->lfs_uinodes++; 687 } 688 simple_unlock(&vp->v_interlock); 689 return (0); 690 } 691 692 /* 693 * Reclaim an inode so that it can be used for other purposes. 694 */ 695 int lfs_no_inactive = 0; 696 697 int 698 lfs_reclaim(v) 699 void *v; 700 { 701 struct vop_reclaim_args /* { 702 struct vnode *a_vp; 703 struct proc *a_p; 704 } */ *ap = v; 705 struct vnode *vp = ap->a_vp; 706 int error; 707 708 if ((error = ufs_reclaim(vp, ap->a_p))) 709 return (error); 710 pool_put(&lfs_inode_pool, vp->v_data); 711 vp->v_data = NULL; 712 return (0); 713 } 714
Indexes created Mon Oct 20 03:09:53 GMT 2025