pass5.c revision 70050
1/* 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static const char sccsid[] = "@(#)pass5.c 8.9 (Berkeley) 4/28/95"; 37#endif 38static const char rcsid[] = 39 "$FreeBSD: head/sbin/fsck_ffs/pass5.c 70050 2000-12-15 14:23:55Z iedowse $"; 40#endif /* not lint */ 41 42#include <sys/param.h> 43 44#include <ufs/ufs/dinode.h> 45#include <ufs/ffs/fs.h> 46 47#include <err.h> 48#include <string.h> 49 50#include "fsck.h" 51 52void 53pass5() 54{ 55 int c, blk, frags, basesize, sumsize, mapsize, savednrpos = 0; 56 int inomapsize, blkmapsize, astart, aend, ustart, uend; 57 struct fs *fs = &sblock; 58 struct cg *cg = &cgrp; 59 ufs_daddr_t dbase, dmax; 60 ufs_daddr_t d; 61 long i, j, k, l, m, n; 62 struct csum *cs; 63 struct csum cstotal; 64 struct inodesc idesc[3]; 65 char buf[MAXBSIZE]; 66 register struct cg *newcg = (struct cg *)buf; 67 struct ocg *ocg = (struct ocg *)buf; 68 69 inoinfo(WINO)->ino_state = USTATE; 70 memset(newcg, 0, (size_t)fs->fs_cgsize); 71 newcg->cg_niblk = fs->fs_ipg; 72 if (cvtlevel >= 3) { 73 if (fs->fs_maxcontig < 2 && fs->fs_contigsumsize > 0) { 74 if (preen) 75 pwarn("DELETING CLUSTERING MAPS\n"); 76 if (preen || reply("DELETE CLUSTERING MAPS")) { 77 fs->fs_contigsumsize = 0; 78 doinglevel1 = 1; 79 sbdirty(); 80 } 81 } 82 if (fs->fs_maxcontig > 1) { 83 char *doit = 0; 84 85 if (fs->fs_contigsumsize < 1) { 86 doit = "CREAT"; 87 } else if (fs->fs_contigsumsize < fs->fs_maxcontig && 88 fs->fs_contigsumsize < FS_MAXCONTIG) { 89 doit = "EXPAND"; 90 } 91 if (doit) { 92 i = fs->fs_contigsumsize; 93 fs->fs_contigsumsize = 94 MIN(fs->fs_maxcontig, FS_MAXCONTIG); 95 if (CGSIZE(fs) > fs->fs_bsize) { 96 pwarn("CANNOT %s CLUSTER MAPS\n", doit); 97 fs->fs_contigsumsize = i; 98 } else if (preen || 99 reply("CREATE CLUSTER MAPS")) { 100 if (preen) 101 pwarn("%sING CLUSTER MAPS\n", 102 doit); 103 fs->fs_cgsize = 104 fragroundup(fs, CGSIZE(fs)); 105 doinglevel1 = 1; 106 sbdirty(); 107 } 108 } 109 } 110 } 111 switch ((int)fs->fs_postblformat) { 112 113 case FS_42POSTBLFMT: 114 basesize = (char *)(&ocg->cg_btot[0]) - 115 (char *)(&ocg->cg_firstfield); 116 sumsize = &ocg->cg_iused[0] - (u_int8_t *)(&ocg->cg_btot[0]); 117 mapsize = &ocg->cg_free[howmany(fs->fs_fpg, NBBY)] - 118 (u_char *)&ocg->cg_iused[0]; 119 blkmapsize = howmany(fs->fs_fpg, NBBY); 120 inomapsize = &ocg->cg_free[0] - (u_char *)&ocg->cg_iused[0]; 121 ocg->cg_magic = CG_MAGIC; 122 savednrpos = fs->fs_nrpos; 123 fs->fs_nrpos = 8; 124 break; 125 126 case FS_DYNAMICPOSTBLFMT: 127 newcg->cg_btotoff = 128 &newcg->cg_space[0] - (u_char *)(&newcg->cg_firstfield); 129 newcg->cg_boff = 130 newcg->cg_btotoff + fs->fs_cpg * sizeof(int32_t); 131 newcg->cg_iusedoff = newcg->cg_boff + 132 fs->fs_cpg * fs->fs_nrpos * sizeof(u_int16_t); 133 newcg->cg_freeoff = 134 newcg->cg_iusedoff + howmany(fs->fs_ipg, NBBY); 135 inomapsize = newcg->cg_freeoff - newcg->cg_iusedoff; 136 newcg->cg_nextfreeoff = newcg->cg_freeoff + 137 howmany(fs->fs_cpg * fs->fs_spc / NSPF(fs), NBBY); 138 blkmapsize = newcg->cg_nextfreeoff - newcg->cg_freeoff; 139 if (fs->fs_contigsumsize > 0) { 140 newcg->cg_clustersumoff = newcg->cg_nextfreeoff - 141 sizeof(u_int32_t); 142 newcg->cg_clustersumoff = 143 roundup(newcg->cg_clustersumoff, sizeof(u_int32_t)); 144 newcg->cg_clusteroff = newcg->cg_clustersumoff + 145 (fs->fs_contigsumsize + 1) * sizeof(u_int32_t); 146 newcg->cg_nextfreeoff = newcg->cg_clusteroff + 147 howmany(fs->fs_cpg * fs->fs_spc / NSPB(fs), NBBY); 148 } 149 newcg->cg_magic = CG_MAGIC; 150 basesize = &newcg->cg_space[0] - 151 (u_char *)(&newcg->cg_firstfield); 152 sumsize = newcg->cg_iusedoff - newcg->cg_btotoff; 153 mapsize = newcg->cg_nextfreeoff - newcg->cg_iusedoff; 154 break; 155 156 default: 157 inomapsize = blkmapsize = sumsize = 0; /* keep lint happy */ 158 errx(EEXIT, "UNKNOWN ROTATIONAL TABLE FORMAT %d", 159 fs->fs_postblformat); 160 } 161 memset(&idesc[0], 0, sizeof idesc); 162 for (i = 0; i < 3; i++) { 163 idesc[i].id_type = ADDR; 164 if (doinglevel2) 165 idesc[i].id_fix = FIX; 166 } 167 memset(&cstotal, 0, sizeof(struct csum)); 168 j = blknum(fs, fs->fs_size + fs->fs_frag - 1); 169 for (i = fs->fs_size; i < j; i++) 170 setbmap(i); 171 for (c = 0; c < fs->fs_ncg; c++) { 172 if (got_siginfo) { 173 printf("%s: phase 5: cyl group %d of %d (%d%%)\n", 174 cdevname, c, sblock.fs_ncg, 175 c * 100 / sblock.fs_ncg); 176 got_siginfo = 0; 177 } 178 getblk(&cgblk, cgtod(fs, c), fs->fs_cgsize); 179 if (!cg_chkmagic(cg)) 180 pfatal("CG %d: BAD MAGIC NUMBER\n", c); 181 dbase = cgbase(fs, c); 182 dmax = dbase + fs->fs_fpg; 183 if (dmax > fs->fs_size) 184 dmax = fs->fs_size; 185 newcg->cg_time = cg->cg_time; 186 newcg->cg_cgx = c; 187 if (c == fs->fs_ncg - 1) 188 newcg->cg_ncyl = fs->fs_ncyl % fs->fs_cpg; 189 else 190 newcg->cg_ncyl = fs->fs_cpg; 191 newcg->cg_ndblk = dmax - dbase; 192 if (fs->fs_contigsumsize > 0) 193 newcg->cg_nclusterblks = newcg->cg_ndblk / fs->fs_frag; 194 newcg->cg_cs.cs_ndir = 0; 195 newcg->cg_cs.cs_nffree = 0; 196 newcg->cg_cs.cs_nbfree = 0; 197 newcg->cg_cs.cs_nifree = fs->fs_ipg; 198 if (cg->cg_rotor < newcg->cg_ndblk) 199 newcg->cg_rotor = cg->cg_rotor; 200 else 201 newcg->cg_rotor = 0; 202 if (cg->cg_frotor < newcg->cg_ndblk) 203 newcg->cg_frotor = cg->cg_frotor; 204 else 205 newcg->cg_frotor = 0; 206 if (cg->cg_irotor < newcg->cg_niblk) 207 newcg->cg_irotor = cg->cg_irotor; 208 else 209 newcg->cg_irotor = 0; 210 memset(&newcg->cg_frsum[0], 0, sizeof newcg->cg_frsum); 211 memset(&cg_blktot(newcg)[0], 0, 212 (size_t)(sumsize + mapsize)); 213 if (fs->fs_postblformat == FS_42POSTBLFMT) 214 ocg->cg_magic = CG_MAGIC; 215 j = fs->fs_ipg * c; 216 for (i = 0; i < inostathead[c].il_numalloced; j++, i++) { 217 switch (inoinfo(j)->ino_state) { 218 219 case USTATE: 220 break; 221 222 case DSTATE: 223 case DCLEAR: 224 case DFOUND: 225 newcg->cg_cs.cs_ndir++; 226 /* fall through */ 227 228 case FSTATE: 229 case FCLEAR: 230 newcg->cg_cs.cs_nifree--; 231 setbit(cg_inosused(newcg), i); 232 break; 233 234 default: 235 if (j < ROOTINO) 236 break; 237 errx(EEXIT, "BAD STATE %d FOR INODE I=%ld", 238 inoinfo(j)->ino_state, j); 239 } 240 } 241 if (c == 0) 242 for (i = 0; i < ROOTINO; i++) { 243 setbit(cg_inosused(newcg), i); 244 newcg->cg_cs.cs_nifree--; 245 } 246 for (i = 0, d = dbase; 247 d < dmax; 248 d += fs->fs_frag, i += fs->fs_frag) { 249 frags = 0; 250 for (j = 0; j < fs->fs_frag; j++) { 251 if (testbmap(d + j)) 252 continue; 253 setbit(cg_blksfree(newcg), i + j); 254 frags++; 255 } 256 if (frags == fs->fs_frag) { 257 newcg->cg_cs.cs_nbfree++; 258 j = cbtocylno(fs, i); 259 cg_blktot(newcg)[j]++; 260 cg_blks(fs, newcg, j)[cbtorpos(fs, i)]++; 261 if (fs->fs_contigsumsize > 0) 262 setbit(cg_clustersfree(newcg), 263 i / fs->fs_frag); 264 } else if (frags > 0) { 265 newcg->cg_cs.cs_nffree += frags; 266 blk = blkmap(fs, cg_blksfree(newcg), i); 267 ffs_fragacct(fs, blk, newcg->cg_frsum, 1); 268 } 269 } 270 if (fs->fs_contigsumsize > 0) { 271 int32_t *sump = cg_clustersum(newcg); 272 u_char *mapp = cg_clustersfree(newcg); 273 int map = *mapp++; 274 int bit = 1; 275 int run = 0; 276 277 for (i = 0; i < newcg->cg_nclusterblks; i++) { 278 if ((map & bit) != 0) { 279 run++; 280 } else if (run != 0) { 281 if (run > fs->fs_contigsumsize) 282 run = fs->fs_contigsumsize; 283 sump[run]++; 284 run = 0; 285 } 286 if ((i & (NBBY - 1)) != (NBBY - 1)) { 287 bit <<= 1; 288 } else { 289 map = *mapp++; 290 bit = 1; 291 } 292 } 293 if (run != 0) { 294 if (run > fs->fs_contigsumsize) 295 run = fs->fs_contigsumsize; 296 sump[run]++; 297 } 298 } 299 cstotal.cs_nffree += newcg->cg_cs.cs_nffree; 300 cstotal.cs_nbfree += newcg->cg_cs.cs_nbfree; 301 cstotal.cs_nifree += newcg->cg_cs.cs_nifree; 302 cstotal.cs_ndir += newcg->cg_cs.cs_ndir; 303 cs = &fs->fs_cs(fs, c); 304 if (memcmp(&newcg->cg_cs, cs, sizeof *cs) != 0 && 305 dofix(&idesc[0], "FREE BLK COUNT(S) WRONG IN SUPERBLK")) { 306 memmove(cs, &newcg->cg_cs, sizeof *cs); 307 sbdirty(); 308 } 309 if (doinglevel1) { 310 memmove(cg, newcg, (size_t)fs->fs_cgsize); 311 cgdirty(); 312 continue; 313 } 314 if ((memcmp(newcg, cg, basesize) != 0 || 315 memcmp(&cg_blktot(newcg)[0], 316 &cg_blktot(cg)[0], sumsize) != 0) && 317 dofix(&idesc[2], "SUMMARY INFORMATION BAD")) { 318 memmove(cg, newcg, (size_t)basesize); 319 memmove(&cg_blktot(cg)[0], 320 &cg_blktot(newcg)[0], (size_t)sumsize); 321 cgdirty(); 322 } 323 if (debug) { 324 for (i = 0; i < inomapsize; i++) { 325 j = cg_inosused(newcg)[i]; 326 k = cg_inosused(cg)[i]; 327 if (j == k) 328 continue; 329 for (m = 0, l = 1; m < NBBY; m++, l <<= 1) { 330 if ((j & l) == (k & l)) 331 continue; 332 n = c * fs->fs_ipg + i * NBBY + m; 333 if ((j & l) != 0) 334 pwarn("%s INODE %d MARKED %s\n", 335 "ALLOCATED", n, "FREE"); 336 else 337 pwarn("%s INODE %d MARKED %s\n", 338 "UNALLOCATED", n, "USED"); 339 } 340 } 341 astart = ustart = -1; 342 for (i = 0; i < blkmapsize; i++) { 343 j = cg_blksfree(cg)[i]; 344 k = cg_blksfree(newcg)[i]; 345 if (j == k) 346 continue; 347 for (m = 0, l = 1; m < NBBY; m++, l <<= 1) { 348 if ((j & l) == (k & l)) 349 continue; 350 n = c * fs->fs_fpg + i * NBBY + m; 351 if ((j & l) != 0) { 352 if (astart == -1) { 353 astart = aend = n; 354 continue; 355 } 356 if (aend + 1 == n) { 357 aend = n; 358 continue; 359 } 360 pwarn("%s FRAGS %d-%d %s\n", 361 "ALLOCATED", astart, aend, 362 "MARKED FREE"); 363 astart = aend = n; 364 } else { 365 if (ustart == -1) { 366 ustart = uend = n; 367 continue; 368 } 369 if (uend + 1 == n) { 370 uend = n; 371 continue; 372 } 373 pwarn("%s FRAGS %d-%d %s\n", 374 "UNALLOCATED", ustart, uend, 375 "MARKED USED"); 376 ustart = uend = n; 377 } 378 } 379 } 380 if (astart != -1) 381 pwarn("%s FRAGS %d-%d %s\n", 382 "ALLOCATED", astart, aend, 383 "MARKED FREE"); 384 if (ustart != -1) 385 pwarn("%s FRAGS %d-%d %s\n", 386 "UNALLOCATED", ustart, uend, 387 "MARKED USED"); 388 } 389 if (usedsoftdep) { 390 for (i = 0; i < inomapsize; i++) { 391 j = cg_inosused(newcg)[i]; 392 if ((cg_inosused(cg)[i] & j) == j) 393 continue; 394 for (k = 0; k < NBBY; k++) { 395 if ((j & (1 << k)) == 0) 396 continue; 397 if (cg_inosused(cg)[i] & (1 << k)) 398 continue; 399 pwarn("ALLOCATED INODE %d MARKED FREE\n", 400 c * fs->fs_ipg + i * NBBY + k); 401 } 402 } 403 for (i = 0; i < blkmapsize; i++) { 404 j = cg_blksfree(cg)[i]; 405 if ((cg_blksfree(newcg)[i] & j) == j) 406 continue; 407 for (k = 0; k < NBBY; k++) { 408 if ((j & (1 << k)) == 0) 409 continue; 410 if (cg_blksfree(newcg)[i] & (1 << k)) 411 continue; 412 pwarn("ALLOCATED FRAG %d MARKED FREE\n", 413 c * fs->fs_fpg + i * NBBY + k); 414 } 415 } 416 } 417 if (memcmp(cg_inosused(newcg), cg_inosused(cg), mapsize) != 0 && 418 dofix(&idesc[1], "BLK(S) MISSING IN BIT MAPS")) { 419 memmove(cg_inosused(cg), cg_inosused(newcg), 420 (size_t)mapsize); 421 cgdirty(); 422 } 423 } 424 if (fs->fs_postblformat == FS_42POSTBLFMT) 425 fs->fs_nrpos = savednrpos; 426 if (memcmp(&cstotal, &fs->fs_cstotal, sizeof *cs) != 0 427 && dofix(&idesc[0], "FREE BLK COUNT(S) WRONG IN SUPERBLK")) { 428 memmove(&fs->fs_cstotal, &cstotal, sizeof *cs); 429 fs->fs_ronly = 0; 430 fs->fs_fmod = 0; 431 sbdirty(); 432 } 433} 434