ffs_vnops.c revision 1.86
1 /* $NetBSD: ffs_vnops.c,v 1.86 2007/02/20 16:21:04 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)ffs_vnops.c 8.15 (Berkeley) 5/14/95 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: ffs_vnops.c,v 1.86 2007/02/20 16:21:04 ad Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/resourcevar.h> 40 #include <sys/kernel.h> 41 #include <sys/file.h> 42 #include <sys/stat.h> 43 #include <sys/buf.h> 44 #include <sys/event.h> 45 #include <sys/proc.h> 46 #include <sys/mount.h> 47 #include <sys/vnode.h> 48 #include <sys/pool.h> 49 #include <sys/signalvar.h> 50 #include <sys/kauth.h> 51 #include <sys/fstrans.h> 52 53 #include <miscfs/fifofs/fifo.h> 54 #include <miscfs/genfs/genfs.h> 55 #include <miscfs/specfs/specdev.h> 56 57 #include <ufs/ufs/inode.h> 58 #include <ufs/ufs/dir.h> 59 #include <ufs/ufs/ufs_extern.h> 60 #include <ufs/ufs/ufsmount.h> 61 62 #include <ufs/ffs/fs.h> 63 #include <ufs/ffs/ffs_extern.h> 64 65 #include <uvm/uvm.h> 66 67 static int ffs_full_fsync(void *); 68 69 /* Global vfs data structures for ufs. */ 70 int (**ffs_vnodeop_p)(void *); 71 const struct vnodeopv_entry_desc ffs_vnodeop_entries[] = { 72 { &vop_default_desc, vn_default_error }, 73 { &vop_lookup_desc, ufs_lookup }, /* lookup */ 74 { &vop_create_desc, ufs_create }, /* create */ 75 { &vop_whiteout_desc, ufs_whiteout }, /* whiteout */ 76 { &vop_mknod_desc, ufs_mknod }, /* mknod */ 77 { &vop_open_desc, ufs_open }, /* open */ 78 { &vop_close_desc, ufs_close }, /* close */ 79 { &vop_access_desc, ufs_access }, /* access */ 80 { &vop_getattr_desc, ufs_getattr }, /* getattr */ 81 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 82 { &vop_read_desc, ffs_read }, /* read */ 83 { &vop_write_desc, ffs_write }, /* write */ 84 { &vop_lease_desc, ufs_lease_check }, /* lease */ 85 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 86 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 87 { &vop_poll_desc, ufs_poll }, /* poll */ 88 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 89 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 90 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 91 { &vop_fsync_desc, ffs_fsync }, /* fsync */ 92 { &vop_seek_desc, ufs_seek }, /* seek */ 93 { &vop_remove_desc, ufs_remove }, /* remove */ 94 { &vop_link_desc, ufs_link }, /* link */ 95 { &vop_rename_desc, ufs_rename }, /* rename */ 96 { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */ 97 { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */ 98 { &vop_symlink_desc, ufs_symlink }, /* symlink */ 99 { &vop_readdir_desc, ufs_readdir }, /* readdir */ 100 { &vop_readlink_desc, ufs_readlink }, /* readlink */ 101 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 102 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 103 { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */ 104 { &vop_lock_desc, ufs_lock }, /* lock */ 105 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 106 { &vop_bmap_desc, ufs_bmap }, /* bmap */ 107 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 108 { &vop_print_desc, ufs_print }, /* print */ 109 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 110 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 111 { &vop_advlock_desc, ufs_advlock }, /* advlock */ 112 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 113 { &vop_getpages_desc, ffs_getpages }, /* getpages */ 114 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 115 { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */ 116 { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */ 117 { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */ 118 { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */ 119 { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */ 120 { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */ 121 { NULL, NULL } 122 }; 123 const struct vnodeopv_desc ffs_vnodeop_opv_desc = 124 { &ffs_vnodeop_p, ffs_vnodeop_entries }; 125 126 int (**ffs_specop_p)(void *); 127 const struct vnodeopv_entry_desc ffs_specop_entries[] = { 128 { &vop_default_desc, vn_default_error }, 129 { &vop_lookup_desc, spec_lookup }, /* lookup */ 130 { &vop_create_desc, spec_create }, /* create */ 131 { &vop_mknod_desc, spec_mknod }, /* mknod */ 132 { &vop_open_desc, spec_open }, /* open */ 133 { &vop_close_desc, ufsspec_close }, /* close */ 134 { &vop_access_desc, ufs_access }, /* access */ 135 { &vop_getattr_desc, ufs_getattr }, /* getattr */ 136 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 137 { &vop_read_desc, ufsspec_read }, /* read */ 138 { &vop_write_desc, ufsspec_write }, /* write */ 139 { &vop_lease_desc, spec_lease_check }, /* lease */ 140 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 141 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 142 { &vop_poll_desc, spec_poll }, /* poll */ 143 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 144 { &vop_revoke_desc, spec_revoke }, /* revoke */ 145 { &vop_mmap_desc, spec_mmap }, /* mmap */ 146 { &vop_fsync_desc, ffs_fsync }, /* fsync */ 147 { &vop_seek_desc, spec_seek }, /* seek */ 148 { &vop_remove_desc, spec_remove }, /* remove */ 149 { &vop_link_desc, spec_link }, /* link */ 150 { &vop_rename_desc, spec_rename }, /* rename */ 151 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 152 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 153 { &vop_symlink_desc, spec_symlink }, /* symlink */ 154 { &vop_readdir_desc, spec_readdir }, /* readdir */ 155 { &vop_readlink_desc, spec_readlink }, /* readlink */ 156 { &vop_abortop_desc, spec_abortop }, /* abortop */ 157 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 158 { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */ 159 { &vop_lock_desc, ufs_lock }, /* lock */ 160 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 161 { &vop_bmap_desc, spec_bmap }, /* bmap */ 162 { &vop_strategy_desc, spec_strategy }, /* strategy */ 163 { &vop_print_desc, ufs_print }, /* print */ 164 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 165 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 166 { &vop_advlock_desc, spec_advlock }, /* advlock */ 167 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 168 { &vop_getpages_desc, spec_getpages }, /* getpages */ 169 { &vop_putpages_desc, spec_putpages }, /* putpages */ 170 { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */ 171 { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */ 172 { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */ 173 { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */ 174 { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */ 175 { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */ 176 { NULL, NULL } 177 }; 178 const struct vnodeopv_desc ffs_specop_opv_desc = 179 { &ffs_specop_p, ffs_specop_entries }; 180 181 int (**ffs_fifoop_p)(void *); 182 const struct vnodeopv_entry_desc ffs_fifoop_entries[] = { 183 { &vop_default_desc, vn_default_error }, 184 { &vop_lookup_desc, fifo_lookup }, /* lookup */ 185 { &vop_create_desc, fifo_create }, /* create */ 186 { &vop_mknod_desc, fifo_mknod }, /* mknod */ 187 { &vop_open_desc, fifo_open }, /* open */ 188 { &vop_close_desc, ufsfifo_close }, /* close */ 189 { &vop_access_desc, ufs_access }, /* access */ 190 { &vop_getattr_desc, ufs_getattr }, /* getattr */ 191 { &vop_setattr_desc, ufs_setattr }, /* setattr */ 192 { &vop_read_desc, ufsfifo_read }, /* read */ 193 { &vop_write_desc, ufsfifo_write }, /* write */ 194 { &vop_lease_desc, fifo_lease_check }, /* lease */ 195 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ 196 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 197 { &vop_poll_desc, fifo_poll }, /* poll */ 198 { &vop_kqfilter_desc, fifo_kqfilter }, /* kqfilter */ 199 { &vop_revoke_desc, fifo_revoke }, /* revoke */ 200 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 201 { &vop_fsync_desc, ffs_fsync }, /* fsync */ 202 { &vop_seek_desc, fifo_seek }, /* seek */ 203 { &vop_remove_desc, fifo_remove }, /* remove */ 204 { &vop_link_desc, fifo_link }, /* link */ 205 { &vop_rename_desc, fifo_rename }, /* rename */ 206 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 207 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 208 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 209 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 210 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 211 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 212 { &vop_inactive_desc, ufs_inactive }, /* inactive */ 213 { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */ 214 { &vop_lock_desc, ufs_lock }, /* lock */ 215 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 216 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 217 { &vop_strategy_desc, fifo_strategy }, /* strategy */ 218 { &vop_print_desc, ufs_print }, /* print */ 219 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 220 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ 221 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 222 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 223 { &vop_putpages_desc, fifo_putpages }, /* putpages */ 224 { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */ 225 { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */ 226 { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */ 227 { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */ 228 { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */ 229 { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */ 230 { NULL, NULL } 231 }; 232 const struct vnodeopv_desc ffs_fifoop_opv_desc = 233 { &ffs_fifoop_p, ffs_fifoop_entries }; 234 235 #include <ufs/ufs/ufs_readwrite.c> 236 237 int 238 ffs_fsync(void *v) 239 { 240 struct vop_fsync_args /* { 241 struct vnode *a_vp; 242 kauth_cred_t a_cred; 243 int a_flags; 244 off_t a_offlo; 245 off_t a_offhi; 246 struct lwp *a_l; 247 } */ *ap = v; 248 struct buf *bp; 249 int s, num, error, i; 250 struct indir ia[NIADDR + 1]; 251 int bsize; 252 daddr_t blk_high; 253 struct vnode *vp; 254 255 vp = ap->a_vp; 256 257 if ((error = fstrans_start(vp->v_mount, FSTRANS_LAZY)) != 0) 258 return error; 259 /* 260 * XXX no easy way to sync a range in a file with softdep. 261 */ 262 if ((ap->a_offlo == 0 && ap->a_offhi == 0) || DOINGSOFTDEP(vp) || 263 (vp->v_type != VREG)) { 264 error = ffs_full_fsync(v); 265 goto out; 266 } 267 268 bsize = vp->v_mount->mnt_stat.f_iosize; 269 blk_high = ap->a_offhi / bsize; 270 if (ap->a_offhi % bsize != 0) 271 blk_high++; 272 273 /* 274 * First, flush all pages in range. 275 */ 276 277 simple_lock(&vp->v_interlock); 278 error = VOP_PUTPAGES(vp, trunc_page(ap->a_offlo), 279 round_page(ap->a_offhi), PGO_CLEANIT | 280 ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0)); 281 if (error) { 282 goto out; 283 } 284 285 /* 286 * Then, flush indirect blocks. 287 */ 288 289 s = splbio(); 290 if (blk_high >= NDADDR) { 291 error = ufs_getlbns(vp, blk_high, ia, &num); 292 if (error) { 293 splx(s); 294 goto out; 295 } 296 for (i = 0; i < num; i++) { 297 bp = incore(vp, ia[i].in_lbn); 298 if (bp != NULL) { 299 simple_lock(&bp->b_interlock); 300 if (!(bp->b_flags & B_BUSY) && (bp->b_flags & B_DELWRI)) { 301 bp->b_flags |= B_BUSY | B_VFLUSH; 302 simple_unlock(&bp->b_interlock); 303 splx(s); 304 bawrite(bp); 305 s = splbio(); 306 } else { 307 simple_unlock(&bp->b_interlock); 308 } 309 } 310 } 311 } 312 313 if (ap->a_flags & FSYNC_WAIT) { 314 simple_lock(&global_v_numoutput_slock); 315 while (vp->v_numoutput > 0) { 316 vp->v_flag |= VBWAIT; 317 ltsleep(&vp->v_numoutput, PRIBIO + 1, "fsync_range", 0, 318 &global_v_numoutput_slock); 319 } 320 simple_unlock(&global_v_numoutput_slock); 321 } 322 splx(s); 323 324 error = ffs_update(vp, NULL, NULL, 325 ((ap->a_flags & (FSYNC_WAIT | FSYNC_DATAONLY)) == FSYNC_WAIT) 326 ? UPDATE_WAIT : 0); 327 328 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 329 int l = 0; 330 VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 331 ap->a_l->l_cred, ap->a_l); 332 } 333 334 out: 335 fstrans_done(vp->v_mount); 336 return error; 337 } 338 339 /* 340 * Synch an open file. 341 */ 342 /* ARGSUSED */ 343 static int 344 ffs_full_fsync(void *v) 345 { 346 struct vop_fsync_args /* { 347 struct vnode *a_vp; 348 kauth_cred_t a_cred; 349 int a_flags; 350 off_t a_offlo; 351 off_t a_offhi; 352 struct lwp *a_l; 353 } */ *ap = v; 354 struct vnode *vp = ap->a_vp; 355 struct buf *bp, *nbp; 356 int s, error, passes, skipmeta, inodedeps_only, waitfor; 357 358 if (vp->v_type == VBLK && 359 vp->v_specmountpoint != NULL && 360 (vp->v_specmountpoint->mnt_flag & MNT_SOFTDEP)) 361 softdep_fsync_mountdev(vp); 362 363 inodedeps_only = DOINGSOFTDEP(vp) && (ap->a_flags & FSYNC_RECLAIM) 364 && vp->v_uobj.uo_npages == 0 && LIST_EMPTY(&vp->v_dirtyblkhd); 365 366 /* 367 * Flush all dirty data associated with a vnode. 368 */ 369 370 if (vp->v_type == VREG || vp->v_type == VBLK) { 371 simple_lock(&vp->v_interlock); 372 error = VOP_PUTPAGES(vp, 0, 0, PGO_ALLPAGES | PGO_CLEANIT | 373 ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0) | 374 (fstrans_getstate(vp->v_mount) == FSTRANS_SUSPENDING ? 375 PGO_FREE : 0)); 376 if (error) { 377 return error; 378 } 379 } 380 381 passes = NIADDR + 1; 382 skipmeta = 0; 383 if (ap->a_flags & FSYNC_WAIT) 384 skipmeta = 1; 385 s = splbio(); 386 387 loop: 388 LIST_FOREACH(bp, &vp->v_dirtyblkhd, b_vnbufs) 389 bp->b_flags &= ~B_SCANNED; 390 for (bp = LIST_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) { 391 nbp = LIST_NEXT(bp, b_vnbufs); 392 simple_lock(&bp->b_interlock); 393 if (bp->b_flags & (B_BUSY | B_SCANNED)) { 394 simple_unlock(&bp->b_interlock); 395 continue; 396 } 397 if ((bp->b_flags & B_DELWRI) == 0) 398 panic("ffs_fsync: not dirty"); 399 if (skipmeta && bp->b_lblkno < 0) { 400 simple_unlock(&bp->b_interlock); 401 continue; 402 } 403 simple_unlock(&bp->b_interlock); 404 bp->b_flags |= B_BUSY | B_VFLUSH | B_SCANNED; 405 splx(s); 406 /* 407 * On our final pass through, do all I/O synchronously 408 * so that we can find out if our flush is failing 409 * because of write errors. 410 */ 411 if (passes > 0 || !(ap->a_flags & FSYNC_WAIT)) 412 (void) bawrite(bp); 413 else if ((error = bwrite(bp)) != 0) 414 return (error); 415 s = splbio(); 416 /* 417 * Since we may have slept during the I/O, we need 418 * to start from a known point. 419 */ 420 nbp = LIST_FIRST(&vp->v_dirtyblkhd); 421 } 422 if (skipmeta) { 423 skipmeta = 0; 424 goto loop; 425 } 426 if (ap->a_flags & FSYNC_WAIT) { 427 simple_lock(&global_v_numoutput_slock); 428 while (vp->v_numoutput) { 429 vp->v_flag |= VBWAIT; 430 (void) ltsleep(&vp->v_numoutput, PRIBIO + 1, 431 "ffsfsync", 0, &global_v_numoutput_slock); 432 } 433 simple_unlock(&global_v_numoutput_slock); 434 splx(s); 435 436 /* 437 * Ensure that any filesystem metadata associated 438 * with the vnode has been written. 439 */ 440 if ((error = softdep_sync_metadata(ap)) != 0) 441 return (error); 442 443 s = splbio(); 444 if (!LIST_EMPTY(&vp->v_dirtyblkhd)) { 445 /* 446 * Block devices associated with filesystems may 447 * have new I/O requests posted for them even if 448 * the vnode is locked, so no amount of trying will 449 * get them clean. Thus we give block devices a 450 * good effort, then just give up. For all other file 451 * types, go around and try again until it is clean. 452 */ 453 if (passes > 0) { 454 passes--; 455 goto loop; 456 } 457 #ifdef DIAGNOSTIC 458 if (vp->v_type != VBLK) 459 vprint("ffs_fsync: dirty", vp); 460 #endif 461 } 462 } 463 splx(s); 464 465 if (inodedeps_only) 466 waitfor = 0; 467 else 468 waitfor = (ap->a_flags & FSYNC_WAIT) ? UPDATE_WAIT : 0; 469 error = ffs_update(vp, NULL, NULL, waitfor); 470 471 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 472 int i = 0; 473 VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &i, FWRITE, 474 ap->a_l->l_cred, ap->a_l); 475 } 476 477 return error; 478 } 479 480 /* 481 * Reclaim an inode so that it can be used for other purposes. 482 */ 483 int 484 ffs_reclaim(void *v) 485 { 486 struct vop_reclaim_args /* { 487 struct vnode *a_vp; 488 struct lwp *a_l; 489 } */ *ap = v; 490 struct vnode *vp = ap->a_vp; 491 struct inode *ip = VTOI(vp); 492 struct mount *mp = vp->v_mount; 493 struct ufsmount *ump = ip->i_ump; 494 int error; 495 496 if ((error = fstrans_start(mp, FSTRANS_LAZY)) != 0) 497 return error; 498 if ((error = ufs_reclaim(vp, ap->a_l)) != 0) { 499 fstrans_done(mp); 500 return (error); 501 } 502 if (ip->i_din.ffs1_din != NULL) { 503 if (ump->um_fstype == UFS1) 504 pool_put(&ffs_dinode1_pool, ip->i_din.ffs1_din); 505 else 506 pool_put(&ffs_dinode2_pool, ip->i_din.ffs2_din); 507 } 508 /* 509 * XXX MFS ends up here, too, to free an inode. Should we create 510 * XXX a separate pool for MFS inodes? 511 */ 512 genfs_node_destroy(vp); 513 pool_put(&ffs_inode_pool, vp->v_data); 514 vp->v_data = NULL; 515 fstrans_done(mp); 516 return (0); 517 } 518 519 int 520 ffs_getpages(void *v) 521 { 522 struct vop_getpages_args /* { 523 struct vnode *a_vp; 524 voff_t a_offset; 525 struct vm_page **a_m; 526 int *a_count; 527 int a_centeridx; 528 vm_prot_t a_access_type; 529 int a_advice; 530 int a_flags; 531 } */ *ap = v; 532 struct vnode *vp = ap->a_vp; 533 struct inode *ip = VTOI(vp); 534 struct fs *fs = ip->i_fs; 535 536 /* 537 * don't allow a softdep write to create pages for only part of a block. 538 * the dependency tracking requires that all pages be in memory for 539 * a block involved in a dependency. 540 */ 541 542 if (ap->a_flags & PGO_OVERWRITE && 543 (blkoff(fs, ap->a_offset) != 0 || 544 blkoff(fs, *ap->a_count << PAGE_SHIFT) != 0) && 545 DOINGSOFTDEP(ap->a_vp)) { 546 if ((ap->a_flags & PGO_LOCKED) == 0) { 547 simple_unlock(&vp->v_interlock); 548 } 549 return EINVAL; 550 } 551 return genfs_getpages(v); 552 } 553 554 /* 555 * Return the last logical file offset that should be written for this file 556 * if we're doing a write that ends at "size". 557 */ 558 559 void 560 ffs_gop_size(struct vnode *vp, off_t size, off_t *eobp, int flags) 561 { 562 struct inode *ip = VTOI(vp); 563 struct fs *fs = ip->i_fs; 564 daddr_t olbn, nlbn; 565 566 olbn = lblkno(fs, ip->i_size); 567 nlbn = lblkno(fs, size); 568 if (nlbn < NDADDR && olbn <= nlbn) { 569 *eobp = fragroundup(fs, size); 570 } else { 571 *eobp = blkroundup(fs, size); 572 } 573 } 574 575 int 576 ffs_openextattr(void *v) 577 { 578 struct vop_openextattr_args /* { 579 struct vnode *a_vp; 580 kauth_cred_t a_cred; 581 struct proc *a_p; 582 } */ *ap = v; 583 struct inode *ip = VTOI(ap->a_vp); 584 struct fs *fs = ip->i_fs; 585 586 /* Not supported for UFS1 file systems. */ 587 if (fs->fs_magic == FS_UFS1_MAGIC) 588 return (EOPNOTSUPP); 589 590 /* XXX Not implemented for UFS2 file systems. */ 591 return (EOPNOTSUPP); 592 } 593 594 int 595 ffs_closeextattr(void *v) 596 { 597 struct vop_closeextattr_args /* { 598 struct vnode *a_vp; 599 int a_commit; 600 kauth_cred_t a_cred; 601 struct proc *a_p; 602 } */ *ap = v; 603 struct inode *ip = VTOI(ap->a_vp); 604 struct fs *fs = ip->i_fs; 605 606 /* Not supported for UFS1 file systems. */ 607 if (fs->fs_magic == FS_UFS1_MAGIC) 608 return (EOPNOTSUPP); 609 610 /* XXX Not implemented for UFS2 file systems. */ 611 return (EOPNOTSUPP); 612 } 613 614 int 615 ffs_getextattr(void *v) 616 { 617 struct vop_getextattr_args /* { 618 struct vnode *a_vp; 619 int a_attrnamespace; 620 const char *a_name; 621 struct uio *a_uio; 622 size_t *a_size; 623 kauth_cred_t a_cred; 624 struct proc *a_p; 625 } */ *ap = v; 626 struct vnode *vp = ap->a_vp; 627 struct inode *ip = VTOI(vp); 628 struct fs *fs = ip->i_fs; 629 630 if (fs->fs_magic == FS_UFS1_MAGIC) { 631 #ifdef UFS_EXTATTR 632 int error; 633 634 if ((error = fstrans_start(vp->v_mount, FSTRANS_SHARED)) != 0) 635 return error; 636 error = ufs_getextattr(ap); 637 fstrans_done(vp->v_mount); 638 return error; 639 #else 640 return (EOPNOTSUPP); 641 #endif 642 } 643 644 /* XXX Not implemented for UFS2 file systems. */ 645 return (EOPNOTSUPP); 646 } 647 648 int 649 ffs_setextattr(void *v) 650 { 651 struct vop_setextattr_args /* { 652 struct vnode *a_vp; 653 int a_attrnamespace; 654 const char *a_name; 655 struct uio *a_uio; 656 kauth_cred_t a_cred; 657 struct proc *a_p; 658 } */ *ap = v; 659 struct vnode *vp = ap->a_vp; 660 struct inode *ip = VTOI(vp); 661 struct fs *fs = ip->i_fs; 662 663 if (fs->fs_magic == FS_UFS1_MAGIC) { 664 #ifdef UFS_EXTATTR 665 int error; 666 667 if ((error = fstrans_start(vp->v_mount, FSTRANS_SHARED)) != 0) 668 return error; 669 error = ufs_setextattr(ap); 670 fstrans_done(vp->v_mount); 671 return error; 672 #else 673 return (EOPNOTSUPP); 674 #endif 675 } 676 677 /* XXX Not implemented for UFS2 file systems. */ 678 return (EOPNOTSUPP); 679 } 680 681 int 682 ffs_listextattr(void *v) 683 { 684 struct vop_listextattr_args /* { 685 struct vnode *a_vp; 686 int a_attrnamespace; 687 struct uio *a_uio; 688 size_t *a_size; 689 kauth_cred_t a_cred; 690 struct proc *a_p; 691 } */ *ap = v; 692 struct inode *ip = VTOI(ap->a_vp); 693 struct fs *fs = ip->i_fs; 694 695 /* Not supported for UFS1 file systems. */ 696 if (fs->fs_magic == FS_UFS1_MAGIC) 697 return (EOPNOTSUPP); 698 699 /* XXX Not implemented for UFS2 file systems. */ 700 return (EOPNOTSUPP); 701 } 702 703 int 704 ffs_deleteextattr(void *v) 705 { 706 struct vop_deleteextattr_args /* { 707 struct vnode *a_vp; 708 int a_attrnamespace; 709 kauth_cred_t a_cred; 710 struct proc *a_p; 711 } */ *ap = v; 712 struct vnode *vp = ap->a_vp; 713 struct inode *ip = VTOI(vp); 714 struct fs *fs = ip->i_fs; 715 716 if (fs->fs_magic == FS_UFS1_MAGIC) { 717 #ifdef UFS_EXTATTR 718 int error; 719 720 if ((error = fstrans_start(vp->v_mount, FSTRANS_SHARED)) != 0) 721 return error; 722 error = ufs_deleteextattr(ap); 723 fstrans_done(vp->v_mount); 724 return error; 725 #else 726 return (EOPNOTSUPP); 727 #endif 728 } 729 730 /* XXX Not implemented for UFS2 file systems. */ 731 return (EOPNOTSUPP); 732 } 733
Indexes created Thu Oct 02 01:09:59 GMT 2025