ffs_vnops.c revision 1.86.4.5
1 /* $NetBSD: ffs_vnops.c,v 1.86.4.5 2007/06/08 14:18:16 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 1.86.4.5 2007/06/08 14:18:16 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 fstrans_start(vp->v_mount, FSTRANS_LAZY); 258 /* 259 * XXX no easy way to sync a range in a file with softdep. 260 */ 261 if ((ap->a_offlo == 0 && ap->a_offhi == 0) || DOINGSOFTDEP(vp) || 262 (vp->v_type != VREG)) { 263 error = ffs_full_fsync(v); 264 goto out; 265 } 266 267 bsize = vp->v_mount->mnt_stat.f_iosize; 268 blk_high = ap->a_offhi / bsize; 269 if (ap->a_offhi % bsize != 0) 270 blk_high++; 271 272 /* 273 * First, flush all pages in range. 274 */ 275 276 mutex_enter(&vp->v_interlock); 277 error = VOP_PUTPAGES(vp, trunc_page(ap->a_offlo), 278 round_page(ap->a_offhi), PGO_CLEANIT | 279 ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0)); 280 if (error) { 281 goto out; 282 } 283 284 /* 285 * Then, flush indirect blocks. 286 */ 287 288 if (blk_high >= NDADDR) { 289 error = ufs_getlbns(vp, blk_high, ia, &num); 290 if (error) 291 goto out; 292 293 mutex_enter(&bqueue_lock); 294 for (i = 0; i < num; i++) { 295 if ((bp = incore(vp, ia[i].in_lbn)) == NULL) 296 continue; 297 mutex_enter(&bp->b_interlock); 298 if ((bp->b_flags & (B_BUSY | B_DELWRI)) != B_DELWRI) { 299 mutex_exit(&bp->b_interlock); 300 continue; 301 } 302 bp->b_flags |= B_BUSY | B_VFLUSH; 303 mutex_exit(&bp->b_interlock); 304 mutex_exit(&bqueue_lock); 305 bawrite(bp); 306 mutex_enter(&bqueue_lock); 307 } 308 mutex_exit(&bqueue_lock); 309 } 310 311 if (ap->a_flags & FSYNC_WAIT) { 312 mutex_enter(&global_v_numoutput_lock); 313 while (vp->v_numoutput > 0) 314 cv_wait(&vp->v_outputcv, &global_v_numoutput_lock); 315 mutex_exit(&global_v_numoutput_lock); 316 } 317 318 error = ffs_update(vp, NULL, NULL, 319 ((ap->a_flags & (FSYNC_WAIT | FSYNC_DATAONLY)) == FSYNC_WAIT) 320 ? UPDATE_WAIT : 0); 321 322 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 323 int l = 0; 324 VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 325 ap->a_l->l_cred, ap->a_l); 326 } 327 328 out: 329 fstrans_done(vp->v_mount); 330 return error; 331 } 332 333 /* 334 * Synch an open file. 335 */ 336 /* ARGSUSED */ 337 static int 338 ffs_full_fsync(void *v) 339 { 340 struct vop_fsync_args /* { 341 struct vnode *a_vp; 342 kauth_cred_t a_cred; 343 int a_flags; 344 off_t a_offlo; 345 off_t a_offhi; 346 struct lwp *a_l; 347 } */ *ap = v; 348 struct vnode *vp = ap->a_vp; 349 struct buf *bp, *nbp; 350 int error, passes, skipmeta, inodedeps_only, waitfor; 351 352 if (vp->v_type == VBLK && 353 vp->v_specmountpoint != NULL && 354 (vp->v_specmountpoint->mnt_flag & MNT_SOFTDEP)) 355 softdep_fsync_mountdev(vp); 356 357 inodedeps_only = DOINGSOFTDEP(vp) && (ap->a_flags & FSYNC_RECLAIM) 358 && vp->v_uobj.uo_npages == 0 && LIST_EMPTY(&vp->v_dirtyblkhd); 359 360 /* 361 * Flush all dirty data associated with a vnode. 362 */ 363 364 if (vp->v_type == VREG || vp->v_type == VBLK) { 365 mutex_enter(&vp->v_interlock); 366 error = VOP_PUTPAGES(vp, 0, 0, PGO_ALLPAGES | PGO_CLEANIT | 367 ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0) | 368 (fstrans_getstate(vp->v_mount) == FSTRANS_SUSPENDING ? 369 PGO_FREE : 0)); 370 if (error) { 371 return error; 372 } 373 } 374 375 passes = NIADDR + 1; 376 skipmeta = 0; 377 if (ap->a_flags & FSYNC_WAIT) 378 skipmeta = 1; 379 380 loop: 381 LIST_FOREACH(bp, &vp->v_dirtyblkhd, b_vnbufs) { 382 mutex_enter(&bp->b_interlock); 383 bp->b_flags &= ~B_SCANNED; 384 mutex_exit(&bp->b_interlock); 385 } 386 for (bp = LIST_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) { 387 nbp = LIST_NEXT(bp, b_vnbufs); 388 mutex_enter(&bp->b_interlock); 389 if (bp->b_flags & (B_BUSY | B_SCANNED)) { 390 mutex_exit(&bp->b_interlock); 391 continue; 392 } 393 if ((bp->b_flags & B_DELWRI) == 0) 394 panic("ffs_fsync: not dirty"); 395 if (skipmeta && bp->b_lblkno < 0) { 396 mutex_exit(&bp->b_interlock); 397 continue; 398 } 399 bp->b_flags |= B_BUSY | B_VFLUSH | B_SCANNED; 400 mutex_exit(&bp->b_interlock); 401 /* 402 * On our final pass through, do all I/O synchronously 403 * so that we can find out if our flush is failing 404 * because of write errors. 405 */ 406 if (passes > 0 || !(ap->a_flags & FSYNC_WAIT)) 407 (void) bawrite(bp); 408 else if ((error = bwrite(bp)) != 0) 409 return (error); 410 /* 411 * Since we may have slept during the I/O, we need 412 * to start from a known point. 413 */ 414 nbp = LIST_FIRST(&vp->v_dirtyblkhd); 415 } 416 if (skipmeta) { 417 skipmeta = 0; 418 goto loop; 419 } 420 if (ap->a_flags & FSYNC_WAIT) { 421 mutex_enter(&global_v_numoutput_lock); 422 while (vp->v_numoutput) { 423 cv_wait(&vp->v_outputcv, &global_v_numoutput_lock); 424 } 425 mutex_exit(&global_v_numoutput_lock); 426 427 /* 428 * Ensure that any filesystem metadata associated 429 * with the vnode has been written. 430 */ 431 if ((error = softdep_sync_metadata(ap)) != 0) 432 return (error); 433 434 if (!LIST_EMPTY(&vp->v_dirtyblkhd)) { 435 /* 436 * Block devices associated with filesystems may 437 * have new I/O requests posted for them even if 438 * the vnode is locked, so no amount of trying will 439 * get them clean. Thus we give block devices a 440 * good effort, then just give up. For all other file 441 * types, go around and try again until it is clean. 442 */ 443 if (passes > 0) { 444 passes--; 445 goto loop; 446 } 447 #ifdef DIAGNOSTIC 448 if (vp->v_type != VBLK) 449 vprint("ffs_fsync: dirty", vp); 450 #endif 451 } 452 } 453 454 if (inodedeps_only) 455 waitfor = 0; 456 else 457 waitfor = (ap->a_flags & FSYNC_WAIT) ? UPDATE_WAIT : 0; 458 error = ffs_update(vp, NULL, NULL, waitfor); 459 460 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 461 int i = 0; 462 VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &i, FWRITE, 463 ap->a_l->l_cred, ap->a_l); 464 } 465 466 return error; 467 } 468 469 /* 470 * Reclaim an inode so that it can be used for other purposes. 471 */ 472 int 473 ffs_reclaim(void *v) 474 { 475 struct vop_reclaim_args /* { 476 struct vnode *a_vp; 477 struct lwp *a_l; 478 } */ *ap = v; 479 struct vnode *vp = ap->a_vp; 480 struct inode *ip = VTOI(vp); 481 struct mount *mp = vp->v_mount; 482 struct ufsmount *ump = ip->i_ump; 483 void *data; 484 int error; 485 486 fstrans_start(mp, FSTRANS_LAZY); 487 if ((error = ufs_reclaim(vp, ap->a_l)) != 0) { 488 fstrans_done(mp); 489 return (error); 490 } 491 if (ip->i_din.ffs1_din != NULL) { 492 if (ump->um_fstype == UFS1) 493 pool_put(&ffs_dinode1_pool, ip->i_din.ffs1_din); 494 else 495 pool_put(&ffs_dinode2_pool, ip->i_din.ffs2_din); 496 } 497 /* 498 * To interlock with ffs_sync(). 499 */ 500 genfs_node_destroy(vp); 501 mutex_enter(&vp->v_interlock); 502 data = vp->v_data; 503 vp->v_data = NULL; 504 mutex_exit(&vp->v_interlock); 505 506 /* 507 * XXX MFS ends up here, too, to free an inode. Should we create 508 * XXX a separate pool for MFS inodes? 509 */ 510 pool_put(&ffs_inode_pool, data); 511 fstrans_done(mp); 512 return (0); 513 } 514 515 int 516 ffs_getpages(void *v) 517 { 518 struct vop_getpages_args /* { 519 struct vnode *a_vp; 520 voff_t a_offset; 521 struct vm_page **a_m; 522 int *a_count; 523 int a_centeridx; 524 vm_prot_t a_access_type; 525 int a_advice; 526 int a_flags; 527 } */ *ap = v; 528 struct vnode *vp = ap->a_vp; 529 struct inode *ip = VTOI(vp); 530 struct fs *fs = ip->i_fs; 531 532 /* 533 * don't allow a softdep write to create pages for only part of a block. 534 * the dependency tracking requires that all pages be in memory for 535 * a block involved in a dependency. 536 */ 537 538 if (ap->a_flags & PGO_OVERWRITE && 539 (blkoff(fs, ap->a_offset) != 0 || 540 blkoff(fs, *ap->a_count << PAGE_SHIFT) != 0) && 541 DOINGSOFTDEP(ap->a_vp)) { 542 if ((ap->a_flags & PGO_LOCKED) == 0) { 543 mutex_exit(&vp->v_interlock); 544 } 545 return EINVAL; 546 } 547 return genfs_getpages(v); 548 } 549 550 /* 551 * Return the last logical file offset that should be written for this file 552 * if we're doing a write that ends at "size". 553 */ 554 555 void 556 ffs_gop_size(struct vnode *vp, off_t size, off_t *eobp, int flags) 557 { 558 struct inode *ip = VTOI(vp); 559 struct fs *fs = ip->i_fs; 560 daddr_t olbn, nlbn; 561 562 olbn = lblkno(fs, ip->i_size); 563 nlbn = lblkno(fs, size); 564 if (nlbn < NDADDR && olbn <= nlbn) { 565 *eobp = fragroundup(fs, size); 566 } else { 567 *eobp = blkroundup(fs, size); 568 } 569 } 570 571 int 572 ffs_openextattr(void *v) 573 { 574 struct vop_openextattr_args /* { 575 struct vnode *a_vp; 576 kauth_cred_t a_cred; 577 struct proc *a_p; 578 } */ *ap = v; 579 struct inode *ip = VTOI(ap->a_vp); 580 struct fs *fs = ip->i_fs; 581 582 /* Not supported for UFS1 file systems. */ 583 if (fs->fs_magic == FS_UFS1_MAGIC) 584 return (EOPNOTSUPP); 585 586 /* XXX Not implemented for UFS2 file systems. */ 587 return (EOPNOTSUPP); 588 } 589 590 int 591 ffs_closeextattr(void *v) 592 { 593 struct vop_closeextattr_args /* { 594 struct vnode *a_vp; 595 int a_commit; 596 kauth_cred_t a_cred; 597 struct proc *a_p; 598 } */ *ap = v; 599 struct inode *ip = VTOI(ap->a_vp); 600 struct fs *fs = ip->i_fs; 601 602 /* Not supported for UFS1 file systems. */ 603 if (fs->fs_magic == FS_UFS1_MAGIC) 604 return (EOPNOTSUPP); 605 606 /* XXX Not implemented for UFS2 file systems. */ 607 return (EOPNOTSUPP); 608 } 609 610 int 611 ffs_getextattr(void *v) 612 { 613 struct vop_getextattr_args /* { 614 struct vnode *a_vp; 615 int a_attrnamespace; 616 const char *a_name; 617 struct uio *a_uio; 618 size_t *a_size; 619 kauth_cred_t a_cred; 620 struct proc *a_p; 621 } */ *ap = v; 622 struct vnode *vp = ap->a_vp; 623 struct inode *ip = VTOI(vp); 624 struct fs *fs = ip->i_fs; 625 626 if (fs->fs_magic == FS_UFS1_MAGIC) { 627 #ifdef UFS_EXTATTR 628 int error; 629 630 fstrans_start(vp->v_mount, FSTRANS_SHARED); 631 error = ufs_getextattr(ap); 632 fstrans_done(vp->v_mount); 633 return error; 634 #else 635 return (EOPNOTSUPP); 636 #endif 637 } 638 639 /* XXX Not implemented for UFS2 file systems. */ 640 return (EOPNOTSUPP); 641 } 642 643 int 644 ffs_setextattr(void *v) 645 { 646 struct vop_setextattr_args /* { 647 struct vnode *a_vp; 648 int a_attrnamespace; 649 const char *a_name; 650 struct uio *a_uio; 651 kauth_cred_t a_cred; 652 struct proc *a_p; 653 } */ *ap = v; 654 struct vnode *vp = ap->a_vp; 655 struct inode *ip = VTOI(vp); 656 struct fs *fs = ip->i_fs; 657 658 if (fs->fs_magic == FS_UFS1_MAGIC) { 659 #ifdef UFS_EXTATTR 660 int error; 661 662 fstrans_start(vp->v_mount, FSTRANS_SHARED); 663 error = ufs_setextattr(ap); 664 fstrans_done(vp->v_mount); 665 return error; 666 #else 667 return (EOPNOTSUPP); 668 #endif 669 } 670 671 /* XXX Not implemented for UFS2 file systems. */ 672 return (EOPNOTSUPP); 673 } 674 675 int 676 ffs_listextattr(void *v) 677 { 678 struct vop_listextattr_args /* { 679 struct vnode *a_vp; 680 int a_attrnamespace; 681 struct uio *a_uio; 682 size_t *a_size; 683 kauth_cred_t a_cred; 684 struct proc *a_p; 685 } */ *ap = v; 686 struct inode *ip = VTOI(ap->a_vp); 687 struct fs *fs = ip->i_fs; 688 689 /* Not supported for UFS1 file systems. */ 690 if (fs->fs_magic == FS_UFS1_MAGIC) 691 return (EOPNOTSUPP); 692 693 /* XXX Not implemented for UFS2 file systems. */ 694 return (EOPNOTSUPP); 695 } 696 697 int 698 ffs_deleteextattr(void *v) 699 { 700 struct vop_deleteextattr_args /* { 701 struct vnode *a_vp; 702 int a_attrnamespace; 703 kauth_cred_t a_cred; 704 struct proc *a_p; 705 } */ *ap = v; 706 struct vnode *vp = ap->a_vp; 707 struct inode *ip = VTOI(vp); 708 struct fs *fs = ip->i_fs; 709 710 if (fs->fs_magic == FS_UFS1_MAGIC) { 711 #ifdef UFS_EXTATTR 712 int error; 713 714 fstrans_start(vp->v_mount, FSTRANS_SHARED); 715 error = ufs_deleteextattr(ap); 716 fstrans_done(vp->v_mount); 717 return error; 718 #else 719 return (EOPNOTSUPP); 720 #endif 721 } 722 723 /* XXX Not implemented for UFS2 file systems. */ 724 return (EOPNOTSUPP); 725 } 726
Indexes created Thu Oct 23 22:10:10 GMT 2025