lfs_vnops.c revision 1.25.2.5
1 /* $NetBSD: lfs_vnops.c,v 1.25.2.5 2000/01/15 17:52:33 he 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, vn_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 extern int lfs_dirvcount; 294 295 static int lfs_set_dirop(fs) 296 struct lfs *fs; 297 { 298 int error; 299 300 while (fs->lfs_writer || lfs_dirvcount>LFS_MAXDIROP) { 301 if(fs->lfs_writer) 302 tsleep(&fs->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); 303 if(lfs_dirvcount > LFS_MAXDIROP && fs->lfs_dirops==0) { 304 ++fs->lfs_writer; 305 lfs_flush(fs, 0); 306 if(--fs->lfs_writer==0) 307 wakeup(&fs->lfs_dirops); 308 } 309 310 if(lfs_dirvcount > LFS_MAXDIROP) { 311 #ifdef DEBUG_LFS 312 printf("lfs_set_dirop: sleeping with dirops=%d, dirvcount=%d\n",fs->lfs_dirops,lfs_dirvcount); 313 #endif 314 if((error=tsleep(&lfs_dirvcount, PCATCH|PUSER, "lfs_maxdirop", 0))!=0) 315 return error; 316 } 317 } 318 ++fs->lfs_dirops; 319 fs->lfs_doifile = 1; 320 321 return 0; 322 } 323 324 #define SET_ENDOP(fs,vp,str) { \ 325 --(fs)->lfs_dirops; \ 326 if (!(fs)->lfs_dirops) { \ 327 wakeup(&(fs)->lfs_writer); \ 328 lfs_check((vp),LFS_UNUSED_LBN,0); \ 329 } \ 330 } 331 332 #define MARK_VNODE(dvp) do { \ 333 if(!((dvp)->v_flag & VDIROP)) { \ 334 lfs_vref(dvp); \ 335 ++lfs_dirvcount; \ 336 } \ 337 (dvp)->v_flag |= VDIROP; \ 338 } while(0) 339 340 #define MAYBE_INACTIVE(fs,vp) do { \ 341 if((vp) && ((vp)->v_flag & VDIROP) && (vp)->v_usecount == 1 \ 342 && VTOI(vp) && VTOI(vp)->i_ffs_nlink == 0) \ 343 { \ 344 if (VOP_LOCK((vp), LK_EXCLUSIVE) == 0) { \ 345 VOP_INACTIVE((vp),curproc); \ 346 } \ 347 } \ 348 } while(0) 349 350 int 351 lfs_symlink(v) 352 void *v; 353 { 354 struct vop_symlink_args /* { 355 struct vnode *a_dvp; 356 struct vnode **a_vpp; 357 struct componentname *a_cnp; 358 struct vattr *a_vap; 359 char *a_target; 360 } */ *ap = v; 361 int ret; 362 363 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 364 return ret; 365 MARK_VNODE(ap->a_dvp); 366 ret = ufs_symlink(ap); 367 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 368 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"symilnk"); 369 return (ret); 370 } 371 372 int 373 lfs_mknod(v) 374 void *v; 375 { 376 struct vop_mknod_args /* { 377 struct vnode *a_dvp; 378 struct vnode **a_vpp; 379 struct componentname *a_cnp; 380 struct vattr *a_vap; 381 } */ *ap = v; 382 struct vattr *vap = ap->a_vap; 383 struct vnode **vpp = ap->a_vpp; 384 struct inode *ip; 385 int error; 386 387 if((error=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 388 return error; 389 MARK_VNODE(ap->a_dvp); 390 error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), 391 ap->a_dvp, vpp, ap->a_cnp); 392 393 /* Either way we're done with the dirop at this point */ 394 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mknod"); 395 396 if (error) 397 return (error); 398 399 ip = VTOI(*vpp); 400 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 401 if (vap->va_rdev != VNOVAL) { 402 /* 403 * Want to be able to use this to make badblock 404 * inodes, so don't truncate the dev number. 405 */ 406 #if 0 407 ip->i_ffs_rdev = ufs_rw32(vap->va_rdev, 408 UFS_MPNEEDSWAP((*vpp)->v_mount)); 409 #else 410 ip->i_ffs_rdev = vap->va_rdev; 411 #endif 412 } 413 /* 414 * Call fsync to write the vnode so that we don't have to deal with 415 * flushing it when it's marked VDIROP|VXLOCK. 416 * 417 * XXX KS - If we can't flush we also can't call vgone(), so must 418 * return. But, that leaves this vnode in limbo, also not good. 419 * Can this ever happen (barring hardware failure)? 420 */ 421 if ((error = VOP_FSYNC(*vpp, NOCRED, FSYNC_WAIT, curproc)) != 0) 422 return (error); 423 /* 424 * Remove inode so that it will be reloaded by VFS_VGET and 425 * checked to see if it is an alias of an existing entry in 426 * the inode cache. 427 */ 428 /* Used to be vput, but that causes us to call VOP_INACTIVE twice. */ 429 VOP_UNLOCK(*vpp,0); 430 lfs_vunref(*vpp); 431 (*vpp)->v_type = VNON; 432 vgone(*vpp); 433 *vpp = 0; 434 return (0); 435 } 436 437 int 438 lfs_create(v) 439 void *v; 440 { 441 struct vop_create_args /* { 442 struct vnode *a_dvp; 443 struct vnode **a_vpp; 444 struct componentname *a_cnp; 445 struct vattr *a_vap; 446 } */ *ap = v; 447 int ret; 448 449 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 450 return ret; 451 MARK_VNODE(ap->a_dvp); 452 ret = ufs_create(ap); 453 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 454 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"create"); 455 return (ret); 456 } 457 458 int 459 lfs_whiteout(v) 460 void *v; 461 { 462 struct vop_whiteout_args /* { 463 struct vnode *a_dvp; 464 struct componentname *a_cnp; 465 int a_flags; 466 } */ *ap = v; 467 int ret; 468 469 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 470 return ret; 471 MARK_VNODE(ap->a_dvp); 472 ret = ufs_whiteout(ap); 473 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"whiteout"); 474 return (ret); 475 } 476 477 int 478 lfs_mkdir(v) 479 void *v; 480 { 481 struct vop_mkdir_args /* { 482 struct vnode *a_dvp; 483 struct vnode **a_vpp; 484 struct componentname *a_cnp; 485 struct vattr *a_vap; 486 } */ *ap = v; 487 int ret; 488 489 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 490 return ret; 491 MARK_VNODE(ap->a_dvp); 492 ret = ufs_mkdir(ap); 493 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,*(ap->a_vpp)); /* XXX KS */ 494 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"mkdir"); 495 return (ret); 496 } 497 498 int 499 lfs_remove(v) 500 void *v; 501 { 502 struct vop_remove_args /* { 503 struct vnode *a_dvp; 504 struct vnode *a_vp; 505 struct componentname *a_cnp; 506 } */ *ap = v; 507 int ret; 508 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 509 return ret; 510 MARK_VNODE(ap->a_dvp); 511 MARK_VNODE(ap->a_vp); 512 ret = ufs_remove(ap); 513 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 514 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"remove"); 515 return (ret); 516 } 517 518 int 519 lfs_rmdir(v) 520 void *v; 521 { 522 struct vop_rmdir_args /* { 523 struct vnodeop_desc *a_desc; 524 struct vnode *a_dvp; 525 struct vnode *a_vp; 526 struct componentname *a_cnp; 527 } */ *ap = v; 528 int ret; 529 530 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 531 return ret; 532 MARK_VNODE(ap->a_dvp); 533 MARK_VNODE(ap->a_vp); 534 ret = ufs_rmdir(ap); 535 MAYBE_INACTIVE(VTOI(ap->a_dvp)->i_lfs,ap->a_vp); 536 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"rmdir"); 537 return (ret); 538 } 539 540 int 541 lfs_link(v) 542 void *v; 543 { 544 struct vop_link_args /* { 545 struct vnode *a_dvp; 546 struct vnode *a_vp; 547 struct componentname *a_cnp; 548 } */ *ap = v; 549 int ret; 550 551 if((ret=SET_DIROP(VTOI(ap->a_dvp)->i_lfs))!=0) 552 return ret; 553 MARK_VNODE(ap->a_dvp); 554 ret = ufs_link(ap); 555 SET_ENDOP(VTOI(ap->a_dvp)->i_lfs,ap->a_dvp,"link"); 556 return (ret); 557 } 558 559 int 560 lfs_rename(v) 561 void *v; 562 { 563 struct vop_rename_args /* { 564 struct vnode *a_fdvp; 565 struct vnode *a_fvp; 566 struct componentname *a_fcnp; 567 struct vnode *a_tdvp; 568 struct vnode *a_tvp; 569 struct componentname *a_tcnp; 570 } */ *ap = v; 571 struct vnode *tvp, *fvp, *tdvp, *fdvp; 572 int error; 573 struct lfs *fs; 574 575 fs = VTOI(ap->a_fdvp)->i_lfs; 576 tvp = ap->a_tvp; 577 tdvp = ap->a_tdvp; 578 fvp = ap->a_fvp; 579 fdvp = ap->a_fdvp; 580 581 /* 582 * Check for cross-device rename. 583 * If it is, we don't want to set dirops, just error out. 584 * (In particular note that MARK_VNODE(tdvp) will DTWT on 585 * a cross-device rename.) 586 * 587 * Copied from ufs_rename. 588 */ 589 if ((fvp->v_mount != tdvp->v_mount) || 590 (tvp && (fvp->v_mount != tvp->v_mount))) { 591 error = EXDEV; 592 VOP_ABORTOP(tdvp, ap->a_tcnp); /* XXX, why not in NFS? */ 593 if (tdvp == tvp) 594 vrele(tdvp); 595 else 596 vput(tdvp); 597 if (tvp) 598 vput(tvp); 599 VOP_ABORTOP(fdvp, ap->a_fcnp); /* XXX, why not in NFS? */ 600 vrele(fdvp); 601 vrele(fvp); 602 return (error); 603 } 604 if((error=SET_DIROP(fs))!=0) 605 return (error); 606 MARK_VNODE(fdvp); 607 MARK_VNODE(tdvp); 608 error = ufs_rename(ap); 609 MAYBE_INACTIVE(fs,fvp); 610 MAYBE_INACTIVE(fs,tvp); 611 SET_ENDOP(fs,fdvp,"rename"); 612 return (error); 613 } 614 615 /* XXX hack to avoid calling ITIMES in getattr */ 616 int 617 lfs_getattr(v) 618 void *v; 619 { 620 struct vop_getattr_args /* { 621 struct vnode *a_vp; 622 struct vattr *a_vap; 623 struct ucred *a_cred; 624 struct proc *a_p; 625 } */ *ap = v; 626 register struct vnode *vp = ap->a_vp; 627 register struct inode *ip = VTOI(vp); 628 register struct vattr *vap = ap->a_vap; 629 /* 630 * Copy from inode table 631 */ 632 vap->va_fsid = ip->i_dev; 633 vap->va_fileid = ip->i_number; 634 vap->va_mode = ip->i_ffs_mode & ~IFMT; 635 vap->va_nlink = ip->i_ffs_nlink; 636 vap->va_uid = ip->i_ffs_uid; 637 vap->va_gid = ip->i_ffs_gid; 638 vap->va_rdev = (dev_t)ip->i_ffs_rdev; 639 vap->va_size = ip->i_ffs_size; 640 vap->va_atime.tv_sec = ip->i_ffs_atime; 641 vap->va_atime.tv_nsec = ip->i_ffs_atimensec; 642 vap->va_mtime.tv_sec = ip->i_ffs_mtime; 643 vap->va_mtime.tv_nsec = ip->i_ffs_mtimensec; 644 vap->va_ctime.tv_sec = ip->i_ffs_ctime; 645 vap->va_ctime.tv_nsec = ip->i_ffs_ctimensec; 646 vap->va_flags = ip->i_ffs_flags; 647 vap->va_gen = ip->i_ffs_gen; 648 /* this doesn't belong here */ 649 if (vp->v_type == VBLK) 650 vap->va_blocksize = BLKDEV_IOSIZE; 651 else if (vp->v_type == VCHR) 652 vap->va_blocksize = MAXBSIZE; 653 else 654 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 655 vap->va_bytes = dbtob((u_quad_t)ip->i_ffs_blocks); 656 vap->va_type = vp->v_type; 657 vap->va_filerev = ip->i_modrev; 658 return (0); 659 } 660 661 /* 662 * Close called 663 * 664 * XXX -- we were using ufs_close, but since it updates the 665 * times on the inode, we might need to bump the uinodes 666 * count. 667 */ 668 /* ARGSUSED */ 669 int 670 lfs_close(v) 671 void *v; 672 { 673 struct vop_close_args /* { 674 struct vnode *a_vp; 675 int a_fflag; 676 struct ucred *a_cred; 677 struct proc *a_p; 678 } */ *ap = v; 679 register struct vnode *vp = ap->a_vp; 680 register struct inode *ip = VTOI(vp); 681 int mod; 682 struct timespec ts; 683 684 simple_lock(&vp->v_interlock); 685 if (vp->v_usecount > 1) { 686 mod = ip->i_flag & IN_MODIFIED; 687 TIMEVAL_TO_TIMESPEC(&time, &ts); 688 LFS_ITIMES(ip, &ts, &ts, &ts); 689 if (!mod && ip->i_flag & IN_MODIFIED) 690 ip->i_lfs->lfs_uinodes++; 691 } 692 simple_unlock(&vp->v_interlock); 693 return (0); 694 } 695 696 /* 697 * Reclaim an inode so that it can be used for other purposes. 698 */ 699 int lfs_no_inactive = 0; 700 701 int 702 lfs_reclaim(v) 703 void *v; 704 { 705 struct vop_reclaim_args /* { 706 struct vnode *a_vp; 707 struct proc *a_p; 708 } */ *ap = v; 709 struct vnode *vp = ap->a_vp; 710 int error; 711 712 if ((error = ufs_reclaim(vp, ap->a_p))) 713 return (error); 714 pool_put(&lfs_inode_pool, vp->v_data); 715 vp->v_data = NULL; 716 return (0); 717 } 718
Indexes created Sun Oct 19 02:09:48 GMT 2025