ffs_vnops.c revision 1.86.4.4
1 /* $NetBSD: ffs_vnops.c,v 1.86.4.4 2007/05/27 00:14:03 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 1.86.4.4 2007/05/27 00:14:03 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 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 mutex_enter(&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 if (blk_high >= NDADDR) { 290 error = ufs_getlbns(vp, blk_high, ia, &num); 291 if (error) 292 goto out; 293 294 mutex_enter(&bqueue_lock); 295 for (i = 0; i < num; i++) { 296 if ((bp = incore(vp, ia[i].in_lbn)) == NULL) 297 continue; 298 mutex_enter(&bp->b_interlock); 299 if ((bp->b_flags & (B_BUSY | B_DELWRI)) != B_DELWRI) { 300 mutex_exit(&bp->b_interlock); 301 continue; 302 } 303 bp->b_flags |= B_BUSY | B_VFLUSH; 304 mutex_exit(&bp->b_interlock); 305 mutex_exit(&bqueue_lock); 306 bawrite(bp); 307 mutex_enter(&bqueue_lock); 308 } 309 mutex_exit(&bqueue_lock); 310 } 311 312 if (ap->a_flags & FSYNC_WAIT) { 313 mutex_enter(&global_v_numoutput_lock); 314 while (vp->v_numoutput > 0) 315 cv_wait(&vp->v_outputcv, &global_v_numoutput_lock); 316 mutex_exit(&global_v_numoutput_lock); 317 } 318 319 error = ffs_update(vp, NULL, NULL, 320 ((ap->a_flags & (FSYNC_WAIT | FSYNC_DATAONLY)) == FSYNC_WAIT) 321 ? UPDATE_WAIT : 0); 322 323 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 324 int l = 0; 325 VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 326 ap->a_l->l_cred, ap->a_l); 327 } 328 329 out: 330 fstrans_done(vp->v_mount); 331 return error; 332 } 333 334 /* 335 * Synch an open file. 336 */ 337 /* ARGSUSED */ 338 static int 339 ffs_full_fsync(void *v) 340 { 341 struct vop_fsync_args /* { 342 struct vnode *a_vp; 343 kauth_cred_t a_cred; 344 int a_flags; 345 off_t a_offlo; 346 off_t a_offhi; 347 struct lwp *a_l; 348 } */ *ap = v; 349 struct vnode *vp = ap->a_vp; 350 struct buf *bp, *nbp; 351 int error, passes, skipmeta, inodedeps_only, waitfor; 352 353 if (vp->v_type == VBLK && 354 vp->v_specmountpoint != NULL && 355 (vp->v_specmountpoint->mnt_flag & MNT_SOFTDEP)) 356 softdep_fsync_mountdev(vp); 357 358 inodedeps_only = DOINGSOFTDEP(vp) && (ap->a_flags & FSYNC_RECLAIM) 359 && vp->v_uobj.uo_npages == 0 && LIST_EMPTY(&vp->v_dirtyblkhd); 360 361 /* 362 * Flush all dirty data associated with a vnode. 363 */ 364 365 if (vp->v_type == VREG || vp->v_type == VBLK) { 366 mutex_enter(&vp->v_interlock); 367 error = VOP_PUTPAGES(vp, 0, 0, PGO_ALLPAGES | PGO_CLEANIT | 368 ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0) | 369 (fstrans_getstate(vp->v_mount) == FSTRANS_SUSPENDING ? 370 PGO_FREE : 0)); 371 if (error) { 372 return error; 373 } 374 } 375 376 passes = NIADDR + 1; 377 skipmeta = 0; 378 if (ap->a_flags & FSYNC_WAIT) 379 skipmeta = 1; 380 381 loop: 382 LIST_FOREACH(bp, &vp->v_dirtyblkhd, b_vnbufs) { 383 mutex_enter(&bp->b_interlock); 384 bp->b_flags &= ~B_SCANNED; 385 mutex_exit(&bp->b_interlock); 386 } 387 for (bp = LIST_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) { 388 nbp = LIST_NEXT(bp, b_vnbufs); 389 mutex_enter(&bp->b_interlock); 390 if (bp->b_flags & (B_BUSY | B_SCANNED)) { 391 mutex_exit(&bp->b_interlock); 392 continue; 393 } 394 if ((bp->b_flags & B_DELWRI) == 0) 395 panic("ffs_fsync: not dirty"); 396 if (skipmeta && bp->b_lblkno < 0) { 397 mutex_exit(&bp->b_interlock); 398 continue; 399 } 400 bp->b_flags |= B_BUSY | B_VFLUSH | B_SCANNED; 401 mutex_exit(&bp->b_interlock); 402 /* 403 * On our final pass through, do all I/O synchronously 404 * so that we can find out if our flush is failing 405 * because of write errors. 406 */ 407 if (passes > 0 || !(ap->a_flags & FSYNC_WAIT)) 408 (void) bawrite(bp); 409 else if ((error = bwrite(bp)) != 0) 410 return (error); 411 /* 412 * Since we may have slept during the I/O, we need 413 * to start from a known point. 414 */ 415 nbp = LIST_FIRST(&vp->v_dirtyblkhd); 416 } 417 if (skipmeta) { 418 skipmeta = 0; 419 goto loop; 420 } 421 if (ap->a_flags & FSYNC_WAIT) { 422 mutex_enter(&global_v_numoutput_lock); 423 while (vp->v_numoutput) { 424 cv_wait(&vp->v_outputcv, &global_v_numoutput_lock); 425 } 426 mutex_exit(&global_v_numoutput_lock); 427 428 /* 429 * Ensure that any filesystem metadata associated 430 * with the vnode has been written. 431 */ 432 if ((error = softdep_sync_metadata(ap)) != 0) 433 return (error); 434 435 if (!LIST_EMPTY(&vp->v_dirtyblkhd)) { 436 /* 437 * Block devices associated with filesystems may 438 * have new I/O requests posted for them even if 439 * the vnode is locked, so no amount of trying will 440 * get them clean. Thus we give block devices a 441 * good effort, then just give up. For all other file 442 * types, go around and try again until it is clean. 443 */ 444 if (passes > 0) { 445 passes--; 446 goto loop; 447 } 448 #ifdef DIAGNOSTIC 449 if (vp->v_type != VBLK) 450 vprint("ffs_fsync: dirty", vp); 451 #endif 452 } 453 } 454 455 if (inodedeps_only) 456 waitfor = 0; 457 else 458 waitfor = (ap->a_flags & FSYNC_WAIT) ? UPDATE_WAIT : 0; 459 error = ffs_update(vp, NULL, NULL, waitfor); 460 461 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 462 int i = 0; 463 VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &i, FWRITE, 464 ap->a_l->l_cred, ap->a_l); 465 } 466 467 return error; 468 } 469 470 /* 471 * Reclaim an inode so that it can be used for other purposes. 472 */ 473 int 474 ffs_reclaim(void *v) 475 { 476 struct vop_reclaim_args /* { 477 struct vnode *a_vp; 478 struct lwp *a_l; 479 } */ *ap = v; 480 struct vnode *vp = ap->a_vp; 481 struct inode *ip = VTOI(vp); 482 struct mount *mp = vp->v_mount; 483 struct ufsmount *ump = ip->i_ump; 484 void *data; 485 int error; 486 487 if ((error = fstrans_start(mp, FSTRANS_LAZY)) != 0) 488 return error; 489 if ((error = ufs_reclaim(vp, ap->a_l)) != 0) { 490 fstrans_done(mp); 491 return (error); 492 } 493 if (ip->i_din.ffs1_din != NULL) { 494 if (ump->um_fstype == UFS1) 495 pool_put(&ffs_dinode1_pool, ip->i_din.ffs1_din); 496 else 497 pool_put(&ffs_dinode2_pool, ip->i_din.ffs2_din); 498 } 499 /* 500 * To interlock with ffs_sync(). 501 */ 502 genfs_node_destroy(vp); 503 mutex_enter(&vp->v_interlock); 504 data = vp->v_data; 505 vp->v_data = NULL; 506 mutex_exit(&vp->v_interlock); 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 pool_put(&ffs_inode_pool, data); 513 fstrans_done(mp); 514 return (0); 515 } 516 517 int 518 ffs_getpages(void *v) 519 { 520 struct vop_getpages_args /* { 521 struct vnode *a_vp; 522 voff_t a_offset; 523 struct vm_page **a_m; 524 int *a_count; 525 int a_centeridx; 526 vm_prot_t a_access_type; 527 int a_advice; 528 int a_flags; 529 } */ *ap = v; 530 struct vnode *vp = ap->a_vp; 531 struct inode *ip = VTOI(vp); 532 struct fs *fs = ip->i_fs; 533 534 /* 535 * don't allow a softdep write to create pages for only part of a block. 536 * the dependency tracking requires that all pages be in memory for 537 * a block involved in a dependency. 538 */ 539 540 if (ap->a_flags & PGO_OVERWRITE && 541 (blkoff(fs, ap->a_offset) != 0 || 542 blkoff(fs, *ap->a_count << PAGE_SHIFT) != 0) && 543 DOINGSOFTDEP(ap->a_vp)) { 544 if ((ap->a_flags & PGO_LOCKED) == 0) { 545 mutex_exit(&vp->v_interlock); 546 } 547 return EINVAL; 548 } 549 return genfs_getpages(v); 550 } 551 552 /* 553 * Return the last logical file offset that should be written for this file 554 * if we're doing a write that ends at "size". 555 */ 556 557 void 558 ffs_gop_size(struct vnode *vp, off_t size, off_t *eobp, int flags) 559 { 560 struct inode *ip = VTOI(vp); 561 struct fs *fs = ip->i_fs; 562 daddr_t olbn, nlbn; 563 564 olbn = lblkno(fs, ip->i_size); 565 nlbn = lblkno(fs, size); 566 if (nlbn < NDADDR && olbn <= nlbn) { 567 *eobp = fragroundup(fs, size); 568 } else { 569 *eobp = blkroundup(fs, size); 570 } 571 } 572 573 int 574 ffs_openextattr(void *v) 575 { 576 struct vop_openextattr_args /* { 577 struct vnode *a_vp; 578 kauth_cred_t a_cred; 579 struct proc *a_p; 580 } */ *ap = v; 581 struct inode *ip = VTOI(ap->a_vp); 582 struct fs *fs = ip->i_fs; 583 584 /* Not supported for UFS1 file systems. */ 585 if (fs->fs_magic == FS_UFS1_MAGIC) 586 return (EOPNOTSUPP); 587 588 /* XXX Not implemented for UFS2 file systems. */ 589 return (EOPNOTSUPP); 590 } 591 592 int 593 ffs_closeextattr(void *v) 594 { 595 struct vop_closeextattr_args /* { 596 struct vnode *a_vp; 597 int a_commit; 598 kauth_cred_t a_cred; 599 struct proc *a_p; 600 } */ *ap = v; 601 struct inode *ip = VTOI(ap->a_vp); 602 struct fs *fs = ip->i_fs; 603 604 /* Not supported for UFS1 file systems. */ 605 if (fs->fs_magic == FS_UFS1_MAGIC) 606 return (EOPNOTSUPP); 607 608 /* XXX Not implemented for UFS2 file systems. */ 609 return (EOPNOTSUPP); 610 } 611 612 int 613 ffs_getextattr(void *v) 614 { 615 struct vop_getextattr_args /* { 616 struct vnode *a_vp; 617 int a_attrnamespace; 618 const char *a_name; 619 struct uio *a_uio; 620 size_t *a_size; 621 kauth_cred_t a_cred; 622 struct proc *a_p; 623 } */ *ap = v; 624 struct vnode *vp = ap->a_vp; 625 struct inode *ip = VTOI(vp); 626 struct fs *fs = ip->i_fs; 627 628 if (fs->fs_magic == FS_UFS1_MAGIC) { 629 #ifdef UFS_EXTATTR 630 int error; 631 632 if ((error = fstrans_start(vp->v_mount, FSTRANS_SHARED)) != 0) 633 return error; 634 error = ufs_getextattr(ap); 635 fstrans_done(vp->v_mount); 636 return error; 637 #else 638 return (EOPNOTSUPP); 639 #endif 640 } 641 642 /* XXX Not implemented for UFS2 file systems. */ 643 return (EOPNOTSUPP); 644 } 645 646 int 647 ffs_setextattr(void *v) 648 { 649 struct vop_setextattr_args /* { 650 struct vnode *a_vp; 651 int a_attrnamespace; 652 const char *a_name; 653 struct uio *a_uio; 654 kauth_cred_t a_cred; 655 struct proc *a_p; 656 } */ *ap = v; 657 struct vnode *vp = ap->a_vp; 658 struct inode *ip = VTOI(vp); 659 struct fs *fs = ip->i_fs; 660 661 if (fs->fs_magic == FS_UFS1_MAGIC) { 662 #ifdef UFS_EXTATTR 663 int error; 664 665 if ((error = fstrans_start(vp->v_mount, FSTRANS_SHARED)) != 0) 666 return error; 667 error = ufs_setextattr(ap); 668 fstrans_done(vp->v_mount); 669 return error; 670 #else 671 return (EOPNOTSUPP); 672 #endif 673 } 674 675 /* XXX Not implemented for UFS2 file systems. */ 676 return (EOPNOTSUPP); 677 } 678 679 int 680 ffs_listextattr(void *v) 681 { 682 struct vop_listextattr_args /* { 683 struct vnode *a_vp; 684 int a_attrnamespace; 685 struct uio *a_uio; 686 size_t *a_size; 687 kauth_cred_t a_cred; 688 struct proc *a_p; 689 } */ *ap = v; 690 struct inode *ip = VTOI(ap->a_vp); 691 struct fs *fs = ip->i_fs; 692 693 /* Not supported for UFS1 file systems. */ 694 if (fs->fs_magic == FS_UFS1_MAGIC) 695 return (EOPNOTSUPP); 696 697 /* XXX Not implemented for UFS2 file systems. */ 698 return (EOPNOTSUPP); 699 } 700 701 int 702 ffs_deleteextattr(void *v) 703 { 704 struct vop_deleteextattr_args /* { 705 struct vnode *a_vp; 706 int a_attrnamespace; 707 kauth_cred_t a_cred; 708 struct proc *a_p; 709 } */ *ap = v; 710 struct vnode *vp = ap->a_vp; 711 struct inode *ip = VTOI(vp); 712 struct fs *fs = ip->i_fs; 713 714 if (fs->fs_magic == FS_UFS1_MAGIC) { 715 #ifdef UFS_EXTATTR 716 int error; 717 718 if ((error = fstrans_start(vp->v_mount, FSTRANS_SHARED)) != 0) 719 return error; 720 error = ufs_deleteextattr(ap); 721 fstrans_done(vp->v_mount); 722 return error; 723 #else 724 return (EOPNOTSUPP); 725 #endif 726 } 727 728 /* XXX Not implemented for UFS2 file systems. */ 729 return (EOPNOTSUPP); 730 } 731
Indexes created Wed Oct 22 06:10:02 GMT 2025