1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1986, 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 32 #include <sys/param.h> 33 #include <sys/sysctl.h> 34 35 #include <ufs/ufs/dinode.h> 36 #include <ufs/ffs/fs.h> 37 38 #include <err.h> 39 #include <inttypes.h> 40 #include <limits.h> 41 #include <string.h> 42 43 #include "fsck.h" 44 45 static void check_maps(u_char *, u_char *, int, ufs2_daddr_t, const char *, 46 int *, int, int, int); 47 static void clear_blocks(ufs2_daddr_t start, ufs2_daddr_t end); 48 49 void 50 pass5(void) 51 { 52 int c, i, j, blk, frags, basesize, mapsize; 53 int inomapsize, blkmapsize; 54 struct fs *fs = &sblock; 55 ufs2_daddr_t d, dbase, dmax, start; 56 int rewritecg = 0; 57 ino_t inum; 58 struct csum *cs; 59 struct csum_total cstotal; 60 struct inodesc idesc[3]; 61 char buf[MAXBSIZE]; 62 struct cg *cg, *newcg = (struct cg *)buf; 63 struct bufarea *cgbp; 64 65 inoinfo(UFS_WINO)->ino_state = USTATE; 66 memset(newcg, 0, (size_t)fs->fs_cgsize); 67 newcg->cg_niblk = fs->fs_ipg; 68 /* check to see if we are to add a cylinder group check hash */ 69 if ((ckhashadd & CK_CYLGRP) != 0) 70 rewritecg = 1; 71 if (cvtlevel >= 3) { 72 if (fs->fs_maxcontig < 2 && fs->fs_contigsumsize > 0) { 73 if (preen) 74 pwarn("DELETING CLUSTERING MAPS\n"); 75 if (preen || reply("DELETE CLUSTERING MAPS")) { 76 fs->fs_contigsumsize = 0; 77 rewritecg = 1; 78 sbdirty(); 79 } 80 } 81 if (fs->fs_maxcontig > 1) { 82 const char *doit = NULL; 83 84 if (fs->fs_contigsumsize < 1) { 85 doit = "CREAT"; 86 } else if (fs->fs_contigsumsize < fs->fs_maxcontig && 87 fs->fs_contigsumsize < FS_MAXCONTIG) { 88 doit = "EXPAND"; 89 } 90 if (doit) { 91 i = fs->fs_contigsumsize; 92 fs->fs_contigsumsize = 93 MIN(fs->fs_maxcontig, FS_MAXCONTIG); 94 if (CGSIZE(fs) > (u_int)fs->fs_bsize) { 95 pwarn("CANNOT %s CLUSTER MAPS\n", doit); 96 fs->fs_contigsumsize = i; 97 } else if (preen || 98 reply("CREATE CLUSTER MAPS")) { 99 if (preen) 100 pwarn("%sING CLUSTER MAPS\n", 101 doit); 102 fs->fs_cgsize = 103 fragroundup(fs, CGSIZE(fs)); 104 rewritecg = 1; 105 sbdirty(); 106 } 107 } 108 } 109 } 110 basesize = sizeof(*newcg); 111 if (sblock.fs_magic == FS_UFS2_MAGIC) { 112 newcg->cg_iusedoff = basesize; 113 } else { 114 /* 115 * We reserve the space for the old rotation summary 116 * tables for the benefit of old kernels, but do not 117 * maintain them in modern kernels. In time, they can 118 * go away. 119 */ 120 newcg->cg_old_btotoff = basesize; 121 newcg->cg_old_boff = newcg->cg_old_btotoff + 122 fs->fs_old_cpg * sizeof(int32_t); 123 newcg->cg_iusedoff = newcg->cg_old_boff + 124 fs->fs_old_cpg * fs->fs_old_nrpos * sizeof(u_int16_t); 125 memset(&newcg[1], 0, newcg->cg_iusedoff - basesize); 126 } 127 inomapsize = howmany(fs->fs_ipg, CHAR_BIT); 128 newcg->cg_freeoff = newcg->cg_iusedoff + inomapsize; 129 blkmapsize = howmany(fs->fs_fpg, CHAR_BIT); 130 newcg->cg_nextfreeoff = newcg->cg_freeoff + blkmapsize; 131 if (fs->fs_contigsumsize > 0) { 132 newcg->cg_clustersumoff = newcg->cg_nextfreeoff - 133 sizeof(u_int32_t); 134 newcg->cg_clustersumoff = 135 roundup(newcg->cg_clustersumoff, sizeof(u_int32_t)); 136 newcg->cg_clusteroff = newcg->cg_clustersumoff + 137 (fs->fs_contigsumsize + 1) * sizeof(u_int32_t); 138 newcg->cg_nextfreeoff = newcg->cg_clusteroff + 139 howmany(fragstoblks(fs, fs->fs_fpg), CHAR_BIT); 140 } 141 newcg->cg_magic = CG_MAGIC; 142 mapsize = newcg->cg_nextfreeoff - newcg->cg_iusedoff; 143 memset(&idesc[0], 0, sizeof idesc); 144 for (i = 0; i < 3; i++) 145 idesc[i].id_type = ADDR; 146 memset(&cstotal, 0, sizeof(struct csum_total)); 147 dmax = blknum(fs, fs->fs_size + fs->fs_frag - 1); 148 for (d = fs->fs_size; d < dmax; d++) 149 setbmap(d); 150 for (c = 0; c < fs->fs_ncg; c++) { 151 if (got_siginfo) { 152 printf("%s: phase 5: cyl group %d of %d (%d%%)\n", 153 cdevname, c, sblock.fs_ncg, 154 c * 100 / sblock.fs_ncg); 155 got_siginfo = 0; 156 } 157 if (got_sigalarm) { 158 setproctitle("%s p5 %d%%", cdevname, 159 c * 100 / sblock.fs_ncg); 160 got_sigalarm = 0; 161 } 162 cgbp = cglookup(c); 163 cg = cgbp->b_un.b_cg; 164 if (!cg_chkmagic(cg)) 165 pfatal("CG %d: BAD MAGIC NUMBER\n", c); 166 /* 167 * If we have a cylinder group check hash and are not adding 168 * it for the first time, verify that it is good. 169 */ 170 if ((fs->fs_metackhash & CK_CYLGRP) != 0 && 171 (ckhashadd & CK_CYLGRP) == 0) { 172 uint32_t ckhash, thishash; 173 174 ckhash = cg->cg_ckhash; 175 cg->cg_ckhash = 0; 176 thishash = calculate_crc32c(~0L, cg, fs->fs_cgsize); 177 if (ckhash == thishash) { 178 cg->cg_ckhash = ckhash; 179 } else { 180 pwarn("CG %d: BAD CHECK-HASH %#x vs %#x\n", 181 c, ckhash, thishash); 182 cg->cg_ckhash = thishash; 183 cgdirty(cgbp); 184 } 185 } 186 newcg->cg_time = cg->cg_time; 187 newcg->cg_old_time = cg->cg_old_time; 188 newcg->cg_unrefs = cg->cg_unrefs; 189 newcg->cg_ckhash = cg->cg_ckhash; 190 newcg->cg_cgx = c; 191 dbase = cgbase(fs, c); 192 dmax = dbase + fs->fs_fpg; 193 if (dmax > fs->fs_size) 194 dmax = fs->fs_size; 195 newcg->cg_ndblk = dmax - dbase; 196 if (fs->fs_magic == FS_UFS1_MAGIC) { 197 if (c == fs->fs_ncg - 1) 198 newcg->cg_old_ncyl = howmany(newcg->cg_ndblk, 199 fs->fs_fpg / fs->fs_old_cpg); 200 else 201 newcg->cg_old_ncyl = fs->fs_old_cpg; 202 newcg->cg_old_niblk = fs->fs_ipg; 203 newcg->cg_niblk = 0; 204 } 205 if (fs->fs_contigsumsize > 0) 206 newcg->cg_nclusterblks = newcg->cg_ndblk / fs->fs_frag; 207 newcg->cg_cs.cs_ndir = 0; 208 newcg->cg_cs.cs_nffree = 0; 209 newcg->cg_cs.cs_nbfree = 0; 210 newcg->cg_cs.cs_nifree = fs->fs_ipg; 211 if (cg->cg_rotor >= 0 && cg->cg_rotor < newcg->cg_ndblk) 212 newcg->cg_rotor = cg->cg_rotor; 213 else 214 newcg->cg_rotor = 0; 215 if (cg->cg_frotor >= 0 && cg->cg_frotor < newcg->cg_ndblk) 216 newcg->cg_frotor = cg->cg_frotor; 217 else 218 newcg->cg_frotor = 0; 219 if (cg->cg_irotor >= 0 && cg->cg_irotor < fs->fs_ipg) 220 newcg->cg_irotor = cg->cg_irotor; 221 else 222 newcg->cg_irotor = 0; 223 if (fs->fs_magic == FS_UFS1_MAGIC) { 224 newcg->cg_initediblk = 0; 225 } else { 226 if ((unsigned)cg->cg_initediblk > fs->fs_ipg) 227 newcg->cg_initediblk = fs->fs_ipg; 228 else 229 newcg->cg_initediblk = cg->cg_initediblk; 230 } 231 memset(&newcg->cg_frsum[0], 0, sizeof newcg->cg_frsum); 232 memset(cg_inosused(newcg), 0, (size_t)(mapsize)); 233 inum = fs->fs_ipg * c; 234 for (i = 0; i < inostathead[c].il_numalloced; inum++, i++) { 235 switch (inoinfo(inum)->ino_state) { 236 237 case USTATE: 238 break; 239 240 case DSTATE: 241 case DCLEAR: 242 case DFOUND: 243 case DZLINK: 244 newcg->cg_cs.cs_ndir++; 245 /* FALLTHROUGH */ 246 247 case FSTATE: 248 case FCLEAR: 249 case FZLINK: 250 newcg->cg_cs.cs_nifree--; 251 setbit(cg_inosused(newcg), i); 252 break; 253 254 default: 255 if (inum < UFS_ROOTINO) 256 break; 257 errx(EEXIT, "BAD STATE %d FOR INODE I=%ju", 258 inoinfo(inum)->ino_state, (uintmax_t)inum); 259 } 260 } 261 if (c == 0) 262 for (i = 0; i < (int)UFS_ROOTINO; i++) { 263 setbit(cg_inosused(newcg), i); 264 newcg->cg_cs.cs_nifree--; 265 } 266 start = -1; 267 for (i = 0, d = dbase; 268 d < dmax; 269 d += fs->fs_frag, i += fs->fs_frag) { 270 frags = 0; 271 for (j = 0; j < fs->fs_frag; j++) { 272 if (testbmap(d + j)) { 273 if ((Eflag || Zflag) && start != -1) { 274 clear_blocks(start, d + j - 1); 275 start = -1; 276 } 277 continue; 278 } 279 if (start == -1) 280 start = d + j; 281 setbit(cg_blksfree(newcg), i + j); 282 frags++; 283 } 284 if (frags == fs->fs_frag) { 285 newcg->cg_cs.cs_nbfree++; 286 if (fs->fs_contigsumsize > 0) 287 setbit(cg_clustersfree(newcg), 288 i / fs->fs_frag); 289 } else if (frags > 0) { 290 newcg->cg_cs.cs_nffree += frags; 291 blk = blkmap(fs, cg_blksfree(newcg), i); 292 ffs_fragacct(fs, blk, newcg->cg_frsum, 1); 293 } 294 } 295 if ((Eflag || Zflag) && start != -1) 296 clear_blocks(start, d - 1); 297 if (fs->fs_contigsumsize > 0) { 298 int32_t *sump = cg_clustersum(newcg); 299 u_char *mapp = cg_clustersfree(newcg); 300 int map = *mapp++; 301 int bit = 1; 302 int run = 0; 303 304 for (i = 0; i < newcg->cg_nclusterblks; i++) { 305 if ((map & bit) != 0) { 306 run++; 307 } else if (run != 0) { 308 if (run > fs->fs_contigsumsize) 309 run = fs->fs_contigsumsize; 310 sump[run]++; 311 run = 0; 312 } 313 if ((i & (CHAR_BIT - 1)) != (CHAR_BIT - 1)) { 314 bit <<= 1; 315 } else { 316 map = *mapp++; 317 bit = 1; 318 } 319 } 320 if (run != 0) { 321 if (run > fs->fs_contigsumsize) 322 run = fs->fs_contigsumsize; 323 sump[run]++; 324 } 325 } 326 327 if (bkgrdflag != 0) { 328 cstotal.cs_nffree += cg->cg_cs.cs_nffree; 329 cstotal.cs_nbfree += cg->cg_cs.cs_nbfree; 330 cstotal.cs_nifree += cg->cg_cs.cs_nifree; 331 cstotal.cs_ndir += cg->cg_cs.cs_ndir; 332 } else { 333 cstotal.cs_nffree += newcg->cg_cs.cs_nffree; 334 cstotal.cs_nbfree += newcg->cg_cs.cs_nbfree; 335 cstotal.cs_nifree += newcg->cg_cs.cs_nifree; 336 cstotal.cs_ndir += newcg->cg_cs.cs_ndir; 337 } 338 cs = &fs->fs_cs(fs, c); 339 if (cursnapshot == 0 && 340 memcmp(&newcg->cg_cs, cs, sizeof *cs) != 0 && 341 dofix(&idesc[0], "FREE BLK COUNT(S) WRONG IN SUPERBLK")) { 342 memmove(cs, &newcg->cg_cs, sizeof *cs); 343 sbdirty(); 344 } 345 if (rewritecg) { 346 memmove(cg, newcg, (size_t)fs->fs_cgsize); 347 cgdirty(cgbp); 348 continue; 349 } 350 if (cursnapshot == 0 && 351 memcmp(newcg, cg, basesize) != 0 && 352 dofix(&idesc[2], "SUMMARY INFORMATION BAD")) { 353 memmove(cg, newcg, (size_t)basesize); 354 cgdirty(cgbp); 355 } 356 if (bkgrdflag != 0 || usedsoftdep || debug) 357 update_maps(cg, newcg, bkgrdflag); 358 if (cursnapshot == 0 && 359 memcmp(cg_inosused(newcg), cg_inosused(cg), mapsize) != 0 && 360 dofix(&idesc[1], "BLK(S) MISSING IN BIT MAPS")) { 361 memmove(cg_inosused(cg), cg_inosused(newcg), 362 (size_t)mapsize); 363 cgdirty(cgbp); 364 } 365 } 366 if (cursnapshot == 0 && 367 memcmp(&cstotal, &fs->fs_cstotal, sizeof cstotal) != 0 368 && dofix(&idesc[0], "SUMMARY BLK COUNT(S) WRONG IN SUPERBLK")) { 369 if (debug) { 370 printf("cstotal is currently: %jd dirs, %jd blks free, " 371 "%jd frags free, %jd inos free, %jd clusters\n", 372 (intmax_t)fs->fs_cstotal.cs_ndir, 373 (intmax_t)fs->fs_cstotal.cs_nbfree, 374 (intmax_t)fs->fs_cstotal.cs_nffree, 375 (intmax_t)fs->fs_cstotal.cs_nifree, 376 (intmax_t)fs->fs_cstotal.cs_numclusters); 377 printf("cstotal ought to be: %jd dirs, %jd blks free, " 378 "%jd frags free, %jd inos free, %jd clusters\n", 379 (intmax_t)cstotal.cs_ndir, 380 (intmax_t)cstotal.cs_nbfree, 381 (intmax_t)cstotal.cs_nffree, 382 (intmax_t)cstotal.cs_nifree, 383 (intmax_t)cstotal.cs_numclusters); 384 } 385 memmove(&fs->fs_cstotal, &cstotal, sizeof cstotal); 386 fs->fs_ronly = 0; 387 fs->fs_fmod = 0; 388 sbdirty(); 389 } 390 391 /* 392 * When doing background fsck on a snapshot, figure out whether 393 * the superblock summary is inaccurate and correct it when 394 * necessary. 395 */ 396 if (cursnapshot != 0) { 397 cmd.size = 1; 398 399 cmd.value = cstotal.cs_ndir - fs->fs_cstotal.cs_ndir; 400 if (cmd.value != 0) { 401 if (debug) 402 printf("adjndir by %+" PRIi64 "\n", cmd.value); 403 if (bkgrdsumadj == 0 || sysctl(adjndir, MIBSIZE, 0, 0, 404 &cmd, sizeof cmd) == -1) 405 rwerror("ADJUST NUMBER OF DIRECTORIES", 406 cmd.value); 407 } 408 409 cmd.value = cstotal.cs_nbfree - fs->fs_cstotal.cs_nbfree; 410 if (cmd.value != 0) { 411 if (debug) 412 printf("adjnbfree by %+" PRIi64 "\n", 413 cmd.value); 414 if (bkgrdsumadj == 0 || sysctl(adjnbfree, MIBSIZE, 0, 0, 415 &cmd, sizeof cmd) == -1) 416 rwerror("ADJUST NUMBER OF FREE BLOCKS", 417 cmd.value); 418 } 419 420 cmd.value = cstotal.cs_nifree - fs->fs_cstotal.cs_nifree; 421 if (cmd.value != 0) { 422 if (debug) 423 printf("adjnifree by %+" PRIi64 "\n", 424 cmd.value); 425 if (bkgrdsumadj == 0 || sysctl(adjnifree, MIBSIZE, 0, 0, 426 &cmd, sizeof cmd) == -1) 427 rwerror("ADJUST NUMBER OF FREE INODES", 428 cmd.value); 429 } 430 431 cmd.value = cstotal.cs_nffree - fs->fs_cstotal.cs_nffree; 432 if (cmd.value != 0) { 433 if (debug) 434 printf("adjnffree by %+" PRIi64 "\n", 435 cmd.value); 436 if (bkgrdsumadj == 0 || sysctl(adjnffree, MIBSIZE, 0, 0, 437 &cmd, sizeof cmd) == -1) 438 rwerror("ADJUST NUMBER OF FREE FRAGS", 439 cmd.value); 440 } 441 442 cmd.value = cstotal.cs_numclusters - 443 fs->fs_cstotal.cs_numclusters; 444 if (cmd.value != 0) { 445 if (debug) 446 printf("adjnumclusters by %+" PRIi64 "\n", 447 cmd.value); 448 if (bkgrdsumadj == 0 || sysctl(adjnumclusters, MIBSIZE, 449 0, 0, &cmd, sizeof cmd) == -1) 450 rwerror("ADJUST NUMBER OF FREE CLUSTERS", 451 cmd.value); 452 } 453 } 454 } 455 456 /* 457 * Compare the original cylinder group inode and block bitmaps with the 458 * updated cylinder group inode and block bitmaps. Free inodes and blocks 459 * that have been added. Complain if any previously freed inodes blocks 460 * are now allocated. 461 */ 462 void 463 update_maps( 464 struct cg *oldcg, /* cylinder group of claimed allocations */ 465 struct cg *newcg, /* cylinder group of determined allocations */ 466 int usesysctl) /* 1 => use sysctl interface to update maps */ 467 { 468 int inomapsize, excessdirs; 469 struct fs *fs = &sblock; 470 471 inomapsize = howmany(fs->fs_ipg, CHAR_BIT); 472 excessdirs = oldcg->cg_cs.cs_ndir - newcg->cg_cs.cs_ndir; 473 if (excessdirs < 0) { 474 pfatal("LOST %d DIRECTORIES\n", -excessdirs); 475 excessdirs = 0; 476 } 477 if (excessdirs > 0) 478 check_maps(cg_inosused(newcg), cg_inosused(oldcg), inomapsize, 479 oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_ipg, "DIR", freedirs, 480 0, excessdirs, usesysctl); 481 check_maps(cg_inosused(newcg), cg_inosused(oldcg), inomapsize, 482 oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_ipg, "FILE", freefiles, 483 excessdirs, fs->fs_ipg, usesysctl); 484 check_maps(cg_blksfree(oldcg), cg_blksfree(newcg), 485 howmany(fs->fs_fpg, CHAR_BIT), 486 oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_fpg, "FRAG", 487 freeblks, 0, fs->fs_fpg, usesysctl); 488 } 489 490 static void 491 check_maps( 492 u_char *map1, /* map of claimed allocations */ 493 u_char *map2, /* map of determined allocations */ 494 int mapsize, /* size of above two maps */ 495 ufs2_daddr_t startvalue, /* resource value for first element in map */ 496 const char *name, /* name of resource found in maps */ 497 int *opcode, /* sysctl opcode to free resource */ 498 int skip, /* number of entries to skip before starting to free */ 499 int limit, /* limit on number of entries to free */ 500 int usesysctl) /* 1 => use sysctl interface to update maps */ 501 { 502 # define BUFSIZE 16 503 char buf[BUFSIZE]; 504 long i, j, k, l, m, size; 505 ufs2_daddr_t n, astart, aend, ustart, uend; 506 void (*msg)(const char *fmt, ...); 507 508 if (usesysctl) 509 msg = pfatal; 510 else 511 msg = pwarn; 512 astart = ustart = aend = uend = -1; 513 for (i = 0; i < mapsize; i++) { 514 j = *map1++; 515 k = *map2++; 516 if (j == k) 517 continue; 518 for (m = 0, l = 1; m < CHAR_BIT; m++, l <<= 1) { 519 if ((j & l) == (k & l)) 520 continue; 521 n = startvalue + i * CHAR_BIT + m; 522 if ((j & l) != 0) { 523 if (astart == -1) { 524 astart = aend = n; 525 continue; 526 } 527 if (aend + 1 == n) { 528 aend = n; 529 continue; 530 } 531 if (astart == aend) 532 (*msg)("ALLOCATED %s %" PRId64 533 " MARKED FREE\n", 534 name, astart); 535 else 536 (*msg)("%s %sS %" PRId64 "-%" PRId64 537 " MARKED FREE\n", 538 "ALLOCATED", name, astart, aend); 539 astart = aend = n; 540 } else { 541 if (ustart == -1) { 542 ustart = uend = n; 543 continue; 544 } 545 if (uend + 1 == n) { 546 uend = n; 547 continue; 548 } 549 size = uend - ustart + 1; 550 if (size <= skip) { 551 skip -= size; 552 ustart = uend = n; 553 continue; 554 } 555 if (skip > 0) { 556 ustart += skip; 557 size -= skip; 558 skip = 0; 559 } 560 if (size > limit) 561 size = limit; 562 if (debug && size == 1) 563 pwarn("%s %s %" PRId64 564 " MARKED USED\n", 565 "UNALLOCATED", name, ustart); 566 else if (debug) 567 pwarn("%s %sS %" PRId64 "-%" PRId64 568 " MARKED USED\n", 569 "UNALLOCATED", name, ustart, 570 ustart + size - 1); 571 if (usesysctl != 0) { 572 cmd.value = ustart; 573 cmd.size = size; 574 if (sysctl(opcode, MIBSIZE, 0, 0, 575 &cmd, sizeof cmd) == -1) { 576 snprintf(buf, BUFSIZE, 577 "FREE %s", name); 578 rwerror(buf, cmd.value); 579 } 580 } 581 limit -= size; 582 if (limit <= 0) 583 return; 584 ustart = uend = n; 585 } 586 } 587 } 588 if (astart != -1) { 589 if (astart == aend) 590 (*msg)("ALLOCATED %s %" PRId64 591 " MARKED FREE\n", name, astart); 592 else 593 (*msg)("ALLOCATED %sS %" PRId64 "-%" PRId64 594 " MARKED FREE\n", 595 name, astart, aend); 596 } 597 if (ustart != -1) { 598 size = uend - ustart + 1; 599 if (size <= skip) 600 return; 601 if (skip > 0) { 602 ustart += skip; 603 size -= skip; 604 } 605 if (size > limit) 606 size = limit; 607 if (debug) { 608 if (size == 1) 609 pwarn("UNALLOCATED %s %" PRId64 610 " MARKED USED\n", 611 name, ustart); 612 else 613 pwarn("UNALLOCATED %sS %" PRId64 "-%" PRId64 614 " MARKED USED\n", 615 name, ustart, ustart + size - 1); 616 } 617 if (usesysctl != 0) { 618 cmd.value = ustart; 619 cmd.size = size; 620 if (sysctl(opcode, MIBSIZE, 0, 0, &cmd, 621 sizeof cmd) == -1) { 622 snprintf(buf, BUFSIZE, "FREE %s", name); 623 rwerror(buf, cmd.value); 624 } 625 } 626 } 627 } 628 629 static void 630 clear_blocks(ufs2_daddr_t start, ufs2_daddr_t end) 631 { 632 633 if (debug) 634 printf("Zero frags %jd to %jd\n", start, end); 635 if (Zflag) 636 blzero(fswritefd, fsbtodb(&sblock, start), 637 lfragtosize(&sblock, end - start + 1)); 638 if (Eflag) 639 blerase(fswritefd, fsbtodb(&sblock, start), 640 lfragtosize(&sblock, end - start + 1)); 641 } 642