pass5.c revision 253155
120253Sjoerg/* 220302Sjoerg * Copyright (c) 1980, 1986, 1993 320302Sjoerg * The Regents of the University of California. All rights reserved. 420253Sjoerg * 520253Sjoerg * Redistribution and use in source and binary forms, with or without 620253Sjoerg * modification, are permitted provided that the following conditions 720253Sjoerg * are met: 820253Sjoerg * 1. Redistributions of source code must retain the above copyright 920302Sjoerg * notice, this list of conditions and the following disclaimer. 1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1120253Sjoerg * notice, this list of conditions and the following disclaimer in the 1220253Sjoerg * documentation and/or other materials provided with the distribution. 1320253Sjoerg * 4. Neither the name of the University nor the names of its contributors 1420302Sjoerg * may be used to endorse or promote products derived from this software 1520253Sjoerg * without specific prior written permission. 1620253Sjoerg * 1720302Sjoerg * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1820253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1920253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2020253Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2120253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2220253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2320253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2420253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2544229Sdavidn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2620253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2720253Sjoerg * SUCH DAMAGE. 2830259Scharnier */ 2930259Scharnier 3050479Speter#if 0 3130259Scharnier#ifndef lint 3230259Scharnierstatic const char sccsid[] = "@(#)pass5.c 8.9 (Berkeley) 4/28/95"; 3330259Scharnier#endif /* not lint */ 3430259Scharnier#endif 3520253Sjoerg#include <sys/cdefs.h> 3620253Sjoerg__FBSDID("$FreeBSD: stable/9/sbin/fsck_ffs/pass5.c 253155 2013-07-10 14:13:37Z des $"); 3720253Sjoerg 3830259Scharnier#include <sys/param.h> 3920253Sjoerg#include <sys/sysctl.h> 4020555Sdavidn 4120555Sdavidn#include <ufs/ufs/dinode.h> 4220555Sdavidn#include <ufs/ffs/fs.h> 4330259Scharnier 4464918Sgreen#include <err.h> 4520253Sjoerg#include <inttypes.h> 4620253Sjoerg#include <limits.h> 4720253Sjoerg#include <string.h> 4823318Sache#include <libufs.h> 4922394Sdavidn 5052512Sdavidn#include "fsck.h" 5124214Sache 5244386Sdavidnstatic void check_maps(u_char *, u_char *, int, ufs2_daddr_t, const char *, 5320253Sjoerg int *, int, int, int); 5420253Sjoergstatic void clear_blocks(ufs2_daddr_t start, ufs2_daddr_t end); 5520253Sjoerg 5620253Sjoergvoid 5720253Sjoergpass5(void) 5820253Sjoerg{ 5920253Sjoerg int c, i, j, blk, frags, basesize, mapsize; 6020253Sjoerg int inomapsize, blkmapsize; 6120253Sjoerg struct fs *fs = &sblock; 6285145Sache ufs2_daddr_t d, dbase, dmax, start; 6320253Sjoerg int rewritecg = 0; 6420253Sjoerg struct csum *cs; 6520253Sjoerg struct csum_total cstotal; 6620253Sjoerg struct inodesc idesc[3]; 6720253Sjoerg char buf[MAXBSIZE]; 6820253Sjoerg struct cg *cg, *newcg = (struct cg *)buf; 6920253Sjoerg struct bufarea *cgbp; 7020253Sjoerg 7120253Sjoerg inoinfo(WINO)->ino_state = USTATE; 7220253Sjoerg memset(newcg, 0, (size_t)fs->fs_cgsize); 7320253Sjoerg newcg->cg_niblk = fs->fs_ipg; 7420253Sjoerg if (cvtlevel >= 3) { 7520253Sjoerg if (fs->fs_maxcontig < 2 && fs->fs_contigsumsize > 0) { 7620253Sjoerg if (preen) 7720253Sjoerg pwarn("DELETING CLUSTERING MAPS\n"); 7820253Sjoerg if (preen || reply("DELETE CLUSTERING MAPS")) { 7920253Sjoerg fs->fs_contigsumsize = 0; 8020253Sjoerg rewritecg = 1; 81124382Siedowse sbdirty(); 8220253Sjoerg } 8320253Sjoerg } 8420253Sjoerg if (fs->fs_maxcontig > 1) { 8520253Sjoerg const char *doit = 0; 8620253Sjoerg 8720253Sjoerg if (fs->fs_contigsumsize < 1) { 8820253Sjoerg doit = "CREAT"; 8920253Sjoerg } else if (fs->fs_contigsumsize < fs->fs_maxcontig && 9020253Sjoerg fs->fs_contigsumsize < FS_MAXCONTIG) { 9120253Sjoerg doit = "EXPAND"; 9220253Sjoerg } 9320253Sjoerg if (doit) { 9420253Sjoerg i = fs->fs_contigsumsize; 9520253Sjoerg fs->fs_contigsumsize = 9620253Sjoerg MIN(fs->fs_maxcontig, FS_MAXCONTIG); 9720253Sjoerg if (CGSIZE(fs) > (u_int)fs->fs_bsize) { 9820253Sjoerg pwarn("CANNOT %s CLUSTER MAPS\n", doit); 9952527Sdavidn fs->fs_contigsumsize = i; 10020253Sjoerg } else if (preen || 10152512Sdavidn reply("CREATE CLUSTER MAPS")) { 10220253Sjoerg if (preen) 10320253Sjoerg pwarn("%sING CLUSTER MAPS\n", 10420253Sjoerg doit); 10520253Sjoerg fs->fs_cgsize = 10620253Sjoerg fragroundup(fs, CGSIZE(fs)); 10720253Sjoerg rewritecg = 1; 10820747Sdavidn sbdirty(); 10982868Sdd } 110167919Sle } 111167919Sle } 11220253Sjoerg } 11320253Sjoerg basesize = &newcg->cg_space[0] - (u_char *)(&newcg->cg_firstfield); 11420253Sjoerg if (sblock.fs_magic == FS_UFS2_MAGIC) { 11520253Sjoerg newcg->cg_iusedoff = basesize; 11620253Sjoerg } else { 11720253Sjoerg /* 11820253Sjoerg * We reserve the space for the old rotation summary 11920253Sjoerg * tables for the benefit of old kernels, but do not 12020253Sjoerg * maintain them in modern kernels. In time, they can 12120253Sjoerg * go away. 12256000Sdavidn */ 12320253Sjoerg newcg->cg_old_btotoff = basesize; 12420253Sjoerg newcg->cg_old_boff = newcg->cg_old_btotoff + 12556000Sdavidn fs->fs_old_cpg * sizeof(int32_t); 12656000Sdavidn newcg->cg_iusedoff = newcg->cg_old_boff + 12756000Sdavidn fs->fs_old_cpg * fs->fs_old_nrpos * sizeof(u_int16_t); 12820253Sjoerg memset(&newcg->cg_space[0], 0, newcg->cg_iusedoff - basesize); 12920253Sjoerg } 13052512Sdavidn inomapsize = howmany(fs->fs_ipg, CHAR_BIT); 13120253Sjoerg newcg->cg_freeoff = newcg->cg_iusedoff + inomapsize; 13220267Sjoerg blkmapsize = howmany(fs->fs_fpg, CHAR_BIT); 13320267Sjoerg newcg->cg_nextfreeoff = newcg->cg_freeoff + blkmapsize; 13420267Sjoerg if (fs->fs_contigsumsize > 0) { 13520267Sjoerg newcg->cg_clustersumoff = newcg->cg_nextfreeoff - 13620267Sjoerg sizeof(u_int32_t); 13720267Sjoerg newcg->cg_clustersumoff = 13820267Sjoerg roundup(newcg->cg_clustersumoff, sizeof(u_int32_t)); 13920267Sjoerg newcg->cg_clusteroff = newcg->cg_clustersumoff + 14020267Sjoerg (fs->fs_contigsumsize + 1) * sizeof(u_int32_t); 14120267Sjoerg newcg->cg_nextfreeoff = newcg->cg_clusteroff + 14220267Sjoerg howmany(fragstoblks(fs, fs->fs_fpg), CHAR_BIT); 14320267Sjoerg } 14420267Sjoerg newcg->cg_magic = CG_MAGIC; 14520267Sjoerg mapsize = newcg->cg_nextfreeoff - newcg->cg_iusedoff; 14620253Sjoerg memset(&idesc[0], 0, sizeof idesc); 14720253Sjoerg for (i = 0; i < 3; i++) 14820253Sjoerg idesc[i].id_type = ADDR; 14920253Sjoerg memset(&cstotal, 0, sizeof(struct csum_total)); 15020267Sjoerg dmax = blknum(fs, fs->fs_size + fs->fs_frag - 1); 15120253Sjoerg for (d = fs->fs_size; d < dmax; d++) 15221052Sdavidn setbmap(d); 153167919Sle for (c = 0; c < fs->fs_ncg; c++) { 154167919Sle if (got_siginfo) { 155167919Sle printf("%s: phase 5: cyl group %d of %d (%d%%)\n", 156167919Sle cdevname, c, sblock.fs_ncg, 157167919Sle c * 100 / sblock.fs_ncg); 158219408Sjkim got_siginfo = 0; 159167919Sle } 160168044Sle if (got_sigalarm) { 161167919Sle setproctitle("%s p5 %d%%", cdevname, 16221052Sdavidn c * 100 / sblock.fs_ncg); 16321052Sdavidn got_sigalarm = 0; 16421052Sdavidn } 16521052Sdavidn cgbp = cgget(c); 166224535Sdelphij cg = cgbp->b_un.b_cg; 16721052Sdavidn if (!cg_chkmagic(cg)) 16821052Sdavidn pfatal("CG %d: BAD MAGIC NUMBER\n", c); 16921052Sdavidn newcg->cg_time = cg->cg_time; 17021052Sdavidn newcg->cg_old_time = cg->cg_old_time; 17121052Sdavidn newcg->cg_unrefs = cg->cg_unrefs; 17221052Sdavidn newcg->cg_cgx = c; 17330259Scharnier dbase = cgbase(fs, c); 17421052Sdavidn dmax = dbase + fs->fs_fpg; 17521052Sdavidn if (dmax > fs->fs_size) 17621052Sdavidn dmax = fs->fs_size; 17721052Sdavidn newcg->cg_ndblk = dmax - dbase; 17821242Sdavidn if (fs->fs_magic == FS_UFS1_MAGIC) { 17921242Sdavidn if (c == fs->fs_ncg - 1) 18021242Sdavidn newcg->cg_old_ncyl = howmany(newcg->cg_ndblk, 18121242Sdavidn fs->fs_fpg / fs->fs_old_cpg); 18221242Sdavidn else 18321242Sdavidn newcg->cg_old_ncyl = fs->fs_old_cpg; 18421242Sdavidn newcg->cg_old_niblk = fs->fs_ipg; 18521242Sdavidn newcg->cg_niblk = 0; 18621242Sdavidn } 187219408Sjkim if (fs->fs_contigsumsize > 0) 18821242Sdavidn newcg->cg_nclusterblks = newcg->cg_ndblk / fs->fs_frag; 189148584Spjd newcg->cg_cs.cs_ndir = 0; 190148584Spjd newcg->cg_cs.cs_nffree = 0; 191148584Spjd newcg->cg_cs.cs_nbfree = 0; 192148584Spjd newcg->cg_cs.cs_nifree = fs->fs_ipg; 193148584Spjd if (cg->cg_rotor >= 0 && cg->cg_rotor < newcg->cg_ndblk) 19421242Sdavidn newcg->cg_rotor = cg->cg_rotor; 19521242Sdavidn else 19621242Sdavidn newcg->cg_rotor = 0; 197130633Srobert if (cg->cg_frotor >= 0 && cg->cg_frotor < newcg->cg_ndblk) 198130633Srobert newcg->cg_frotor = cg->cg_frotor; 19921242Sdavidn else 20021242Sdavidn newcg->cg_frotor = 0; 20121242Sdavidn if (cg->cg_irotor >= 0 && cg->cg_irotor < fs->fs_ipg) 20221242Sdavidn newcg->cg_irotor = cg->cg_irotor; 203219408Sjkim else 20421242Sdavidn newcg->cg_irotor = 0; 20521242Sdavidn if (fs->fs_magic == FS_UFS1_MAGIC) { 20621242Sdavidn newcg->cg_initediblk = 0; 20730259Scharnier } else { 20821242Sdavidn if ((unsigned)cg->cg_initediblk > fs->fs_ipg) 20921242Sdavidn newcg->cg_initediblk = fs->fs_ipg; 21021052Sdavidn else 21121242Sdavidn newcg->cg_initediblk = cg->cg_initediblk; 212219408Sjkim } 21330259Scharnier memset(&newcg->cg_frsum[0], 0, sizeof newcg->cg_frsum); 21421052Sdavidn memset(cg_inosused(newcg), 0, (size_t)(mapsize)); 21521052Sdavidn j = fs->fs_ipg * c; 21621052Sdavidn for (i = 0; i < inostathead[c].il_numalloced; j++, i++) { 21721052Sdavidn switch (inoinfo(j)->ino_state) { 21830259Scharnier 21921052Sdavidn case USTATE: 22021052Sdavidn break; 22120253Sjoerg 22220253Sjoerg case DSTATE: 22320253Sjoerg case DCLEAR: 22421330Sdavidn case DFOUND: 22521330Sdavidn case DZLINK: 22621330Sdavidn newcg->cg_cs.cs_ndir++; 22720253Sjoerg /* FALLTHROUGH */ 22820253Sjoerg 22920253Sjoerg case FSTATE: 23020253Sjoerg case FCLEAR: 23163596Sdavidn case FZLINK: 23263596Sdavidn newcg->cg_cs.cs_nifree--; 23363596Sdavidn setbit(cg_inosused(newcg), i); 23463596Sdavidn break; 23563596Sdavidn 23663596Sdavidn default: 23763596Sdavidn if (j < (int)ROOTINO) 23863596Sdavidn break; 23920253Sjoerg errx(EEXIT, "BAD STATE %d FOR INODE I=%d", 24020253Sjoerg inoinfo(j)->ino_state, j); 24120253Sjoerg } 24220679Sdavidn } 24320253Sjoerg if (c == 0) 24420253Sjoerg for (i = 0; i < (int)ROOTINO; i++) { 24552527Sdavidn setbit(cg_inosused(newcg), i); 24620253Sjoerg newcg->cg_cs.cs_nifree--; 24720747Sdavidn } 24844229Sdavidn start = -1; 24961957Sache for (i = 0, d = dbase; 25030259Scharnier d < dmax; 25120253Sjoerg d += fs->fs_frag, i += fs->fs_frag) { 25220747Sdavidn frags = 0; 25320747Sdavidn for (j = 0; j < fs->fs_frag; j++) { 25420253Sjoerg if (testbmap(d + j)) { 25520747Sdavidn if ((Eflag || Zflag) && start != -1) { 25620253Sjoerg clear_blocks(start, d + j - 1); 25720253Sjoerg start = -1; 25852527Sdavidn } 25920253Sjoerg continue; 26026088Sdavidn } 26130259Scharnier if (start == -1) 26220253Sjoerg start = d + j; 26352527Sdavidn setbit(cg_blksfree(newcg), i + j); 26420253Sjoerg frags++; 26520253Sjoerg } 26620253Sjoerg if (frags == fs->fs_frag) { 26763600Sdavidn newcg->cg_cs.cs_nbfree++; 26863600Sdavidn if (fs->fs_contigsumsize > 0) 26920253Sjoerg setbit(cg_clustersfree(newcg), 27020253Sjoerg i / fs->fs_frag); 27130259Scharnier } else if (frags > 0) { 27220253Sjoerg newcg->cg_cs.cs_nffree += frags; 27320253Sjoerg blk = blkmap(fs, cg_blksfree(newcg), i); 27420253Sjoerg ffs_fragacct(fs, blk, newcg->cg_frsum, 1); 27520253Sjoerg } 27620253Sjoerg } 27720253Sjoerg if ((Eflag || Zflag) && start != -1) 27820253Sjoerg clear_blocks(start, d - 1); 27920253Sjoerg if (fs->fs_contigsumsize > 0) { 28020253Sjoerg int32_t *sump = cg_clustersum(newcg); 28120253Sjoerg u_char *mapp = cg_clustersfree(newcg); 28220253Sjoerg int map = *mapp++; 28320253Sjoerg int bit = 1; 28420253Sjoerg int run = 0; 28520253Sjoerg 28620253Sjoerg for (i = 0; i < newcg->cg_nclusterblks; i++) { 28720267Sjoerg if ((map & bit) != 0) { 28830259Scharnier run++; 28920267Sjoerg } else if (run != 0) { 29020253Sjoerg if (run > fs->fs_contigsumsize) 29152527Sdavidn run = fs->fs_contigsumsize; 29220253Sjoerg sump[run]++; 29320267Sjoerg run = 0; 29444386Sdavidn } 29520253Sjoerg if ((i & (CHAR_BIT - 1)) != (CHAR_BIT - 1)) { 29644229Sdavidn bit <<= 1; 29744229Sdavidn } else { 29844386Sdavidn map = *mapp++; 29944229Sdavidn bit = 1; 30020267Sjoerg } 30120253Sjoerg } 30252527Sdavidn if (run != 0) { 30320253Sjoerg if (run > fs->fs_contigsumsize) 30444229Sdavidn run = fs->fs_contigsumsize; 30520253Sjoerg sump[run]++; 30620253Sjoerg } 30720253Sjoerg } 30820253Sjoerg if (bkgrdflag != 0) { 30930259Scharnier cstotal.cs_nffree += cg->cg_cs.cs_nffree; 31020253Sjoerg cstotal.cs_nbfree += cg->cg_cs.cs_nbfree; 31120253Sjoerg cstotal.cs_nifree += cg->cg_cs.cs_nifree; 31220253Sjoerg cstotal.cs_ndir += cg->cg_cs.cs_ndir; 31320253Sjoerg } else { 31420253Sjoerg cstotal.cs_nffree += newcg->cg_cs.cs_nffree; 31520253Sjoerg cstotal.cs_nbfree += newcg->cg_cs.cs_nbfree; 31643780Sdes cstotal.cs_nifree += newcg->cg_cs.cs_nifree; 31743780Sdes cstotal.cs_ndir += newcg->cg_cs.cs_ndir; 31843780Sdes } 31920253Sjoerg cs = &fs->fs_cs(fs, c); 32020253Sjoerg if (cursnapshot == 0 && 32120253Sjoerg memcmp(&newcg->cg_cs, cs, sizeof *cs) != 0 && 32220253Sjoerg dofix(&idesc[0], "FREE BLK COUNT(S) WRONG IN SUPERBLK")) { 32352527Sdavidn memmove(cs, &newcg->cg_cs, sizeof *cs); 32420253Sjoerg sbdirty(); 32520253Sjoerg } 32620253Sjoerg if (rewritecg) { 32752512Sdavidn memmove(cg, newcg, (size_t)fs->fs_cgsize); 32852512Sdavidn dirty(cgbp); 32952527Sdavidn continue; 33020253Sjoerg } 33144229Sdavidn if (cursnapshot == 0 && 33220253Sjoerg memcmp(newcg, cg, basesize) != 0 && 33320253Sjoerg dofix(&idesc[2], "SUMMARY INFORMATION BAD")) { 33420253Sjoerg memmove(cg, newcg, (size_t)basesize); 33520253Sjoerg dirty(cgbp); 33620253Sjoerg } 33744386Sdavidn if (bkgrdflag != 0 || usedsoftdep || debug) 33844386Sdavidn update_maps(cg, newcg, bkgrdflag); 33944386Sdavidn if (cursnapshot == 0 && 34020253Sjoerg memcmp(cg_inosused(newcg), cg_inosused(cg), mapsize) != 0 && 34120253Sjoerg dofix(&idesc[1], "BLK(S) MISSING IN BIT MAPS")) { 34230259Scharnier memmove(cg_inosused(cg), cg_inosused(newcg), 34330259Scharnier (size_t)mapsize); 34420253Sjoerg dirty(cgbp); 34552527Sdavidn } 34620253Sjoerg } 34720253Sjoerg if (cursnapshot == 0 && 34820253Sjoerg memcmp(&cstotal, &fs->fs_cstotal, sizeof cstotal) != 0 34920253Sjoerg && dofix(&idesc[0], "SUMMARY BLK COUNT(S) WRONG IN SUPERBLK")) { 35052512Sdavidn memmove(&fs->fs_cstotal, &cstotal, sizeof cstotal); 35152512Sdavidn fs->fs_ronly = 0; 35252512Sdavidn fs->fs_fmod = 0; 35352512Sdavidn sbdirty(); 35452512Sdavidn } 35552512Sdavidn 35652512Sdavidn /* 35752512Sdavidn * When doing background fsck on a snapshot, figure out whether 35852512Sdavidn * the superblock summary is inaccurate and correct it when 35952512Sdavidn * necessary. 36052512Sdavidn */ 36152512Sdavidn if (cursnapshot != 0) { 36252512Sdavidn cmd.size = 1; 36352512Sdavidn 36452512Sdavidn cmd.value = cstotal.cs_ndir - fs->fs_cstotal.cs_ndir; 36552512Sdavidn if (cmd.value != 0) { 36652512Sdavidn if (debug) 36752512Sdavidn printf("adjndir by %+" PRIi64 "\n", cmd.value); 36852527Sdavidn if (bkgrdsumadj == 0 || sysctl(adjndir, MIBSIZE, 0, 0, 36952512Sdavidn &cmd, sizeof cmd) == -1) 37052512Sdavidn rwerror("ADJUST NUMBER OF DIRECTORIES", cmd.value); 37152512Sdavidn } 37252512Sdavidn 37352527Sdavidn cmd.value = cstotal.cs_nbfree - fs->fs_cstotal.cs_nbfree; 37452527Sdavidn if (cmd.value != 0) { 37552527Sdavidn if (debug) 37652527Sdavidn printf("adjnbfree by %+" PRIi64 "\n", cmd.value); 37752527Sdavidn if (bkgrdsumadj == 0 || sysctl(adjnbfree, MIBSIZE, 0, 0, 37820253Sjoerg &cmd, sizeof cmd) == -1) 37920253Sjoerg rwerror("ADJUST NUMBER OF FREE BLOCKS", cmd.value); 38020253Sjoerg } 38120253Sjoerg 38220253Sjoerg cmd.value = cstotal.cs_nifree - fs->fs_cstotal.cs_nifree; 38330259Scharnier if (cmd.value != 0) { 38420253Sjoerg if (debug) 38544229Sdavidn printf("adjnifree by %+" PRIi64 "\n", cmd.value); 38644229Sdavidn if (bkgrdsumadj == 0 || sysctl(adjnifree, MIBSIZE, 0, 0, 38785145Sache &cmd, sizeof cmd) == -1) 38844229Sdavidn rwerror("ADJUST NUMBER OF FREE INODES", cmd.value); 38920747Sdavidn } 39085145Sache 39120747Sdavidn cmd.value = cstotal.cs_nffree - fs->fs_cstotal.cs_nffree; 39244229Sdavidn if (cmd.value != 0) { 39344229Sdavidn if (debug) 39444229Sdavidn printf("adjnffree by %+" PRIi64 "\n", cmd.value); 39544229Sdavidn if (bkgrdsumadj == 0 || sysctl(adjnffree, MIBSIZE, 0, 0, 39644229Sdavidn &cmd, sizeof cmd) == -1) 39744229Sdavidn rwerror("ADJUST NUMBER OF FREE FRAGS", cmd.value); 39844229Sdavidn } 39944229Sdavidn 40020253Sjoerg cmd.value = cstotal.cs_numclusters - fs->fs_cstotal.cs_numclusters; 40120253Sjoerg if (cmd.value != 0) { 40220253Sjoerg if (debug) 40320253Sjoerg printf("adjnumclusters by %+" PRIi64 "\n", cmd.value); 40420253Sjoerg if (bkgrdsumadj == 0 || sysctl(adjnumclusters, MIBSIZE, 0, 0, 40520253Sjoerg &cmd, sizeof cmd) == -1) 406130633Srobert rwerror("ADJUST NUMBER OF FREE CLUSTERS", cmd.value); 40720253Sjoerg } 40852502Sdavidn } 40952502Sdavidn} 41052502Sdavidn 41152502Sdavidn/* 41256000Sdavidn * Compare the original cylinder group inode and block bitmaps with the 41352502Sdavidn * updated cylinder group inode and block bitmaps. Free inodes and blocks 41452502Sdavidn * that have been added. Complain if any previously freed inodes blocks 41521330Sdavidn * are now allocated. 41652502Sdavidn */ 41752502Sdavidnvoid 41852502Sdavidnupdate_maps( 41952502Sdavidn struct cg *oldcg, /* cylinder group of claimed allocations */ 42052502Sdavidn struct cg *newcg, /* cylinder group of determined allocations */ 42156000Sdavidn int usesysctl) /* 1 => use sysctl interface to update maps */ 42252502Sdavidn{ 42352502Sdavidn int inomapsize, excessdirs; 42452502Sdavidn struct fs *fs = &sblock; 42520253Sjoerg 42620253Sjoerg inomapsize = howmany(fs->fs_ipg, CHAR_BIT); 42720253Sjoerg excessdirs = oldcg->cg_cs.cs_ndir - newcg->cg_cs.cs_ndir; 42820253Sjoerg if (excessdirs < 0) { 42944229Sdavidn pfatal("LOST %d DIRECTORIES\n", -excessdirs); 43044229Sdavidn excessdirs = 0; 43144229Sdavidn } 43244229Sdavidn if (excessdirs > 0) 43344229Sdavidn check_maps(cg_inosused(newcg), cg_inosused(oldcg), inomapsize, 43420253Sjoerg oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_ipg, "DIR", freedirs, 43544229Sdavidn 0, excessdirs, usesysctl); 43644229Sdavidn check_maps(cg_inosused(newcg), cg_inosused(oldcg), inomapsize, 43744229Sdavidn oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_ipg, "FILE", freefiles, 43844229Sdavidn excessdirs, fs->fs_ipg, usesysctl); 43944229Sdavidn check_maps(cg_blksfree(oldcg), cg_blksfree(newcg), 44020253Sjoerg howmany(fs->fs_fpg, CHAR_BIT), 44144229Sdavidn oldcg->cg_cgx * (ufs2_daddr_t)fs->fs_fpg, "FRAG", 44244229Sdavidn freeblks, 0, fs->fs_fpg, usesysctl); 44344229Sdavidn} 44444229Sdavidn 44544229Sdavidnstatic void 44644229Sdavidncheck_maps( 44744229Sdavidn u_char *map1, /* map of claimed allocations */ 44844229Sdavidn u_char *map2, /* map of determined allocations */ 44944229Sdavidn int mapsize, /* size of above two maps */ 45044229Sdavidn ufs2_daddr_t startvalue, /* resource value for first element in map */ 45120253Sjoerg const char *name, /* name of resource found in maps */ 45220253Sjoerg int *opcode, /* sysctl opcode to free resource */ 45320267Sjoerg int skip, /* number of entries to skip before starting to free */ 45420253Sjoerg int limit, /* limit on number of entries to free */ 45544386Sdavidn int usesysctl) /* 1 => use sysctl interface to update maps */ 45644386Sdavidn{ 45744386Sdavidn# define BUFSIZE 16 45820253Sjoerg char buf[BUFSIZE]; 45920253Sjoerg long i, j, k, l, m, size; 46020253Sjoerg ufs2_daddr_t n, astart, aend, ustart, uend; 46120253Sjoerg void (*msg)(const char *fmt, ...); 46220253Sjoerg 46320253Sjoerg if (usesysctl) 46430259Scharnier msg = pfatal; 46520679Sdavidn else 46652527Sdavidn msg = pwarn; 46720253Sjoerg astart = ustart = aend = uend = -1; 46852527Sdavidn for (i = 0; i < mapsize; i++) { 46961957Sache j = *map1++; 47020253Sjoerg k = *map2++; 47152527Sdavidn if (j == k) 47220253Sjoerg continue; 47330259Scharnier for (m = 0, l = 1; m < CHAR_BIT; m++, l <<= 1) { 47420253Sjoerg if ((j & l) == (k & l)) 47530259Scharnier continue; 47620253Sjoerg n = startvalue + i * CHAR_BIT + m; 47720253Sjoerg if ((j & l) != 0) { 47852527Sdavidn if (astart == -1) { 47952527Sdavidn astart = aend = n; 48052527Sdavidn continue; 48152527Sdavidn } 48261762Sdavidn if (aend + 1 == n) { 48352527Sdavidn aend = n; 48452527Sdavidn continue; 48552527Sdavidn } 48620253Sjoerg if (astart == aend) 48752527Sdavidn (*msg)("ALLOCATED %s %" PRId64 48852527Sdavidn " MARKED FREE\n", 48952527Sdavidn name, astart); 49052527Sdavidn else 49152527Sdavidn (*msg)("%s %sS %" PRId64 "-%" PRId64 49252527Sdavidn " MARKED FREE\n", 49320253Sjoerg "ALLOCATED", name, astart, aend); 49420253Sjoerg astart = aend = n; 49520253Sjoerg } else { 49620253Sjoerg if (ustart == -1) { 49720253Sjoerg ustart = uend = n; 49830259Scharnier continue; 49952527Sdavidn } 50052527Sdavidn if (uend + 1 == n) { 50152527Sdavidn uend = n; 50252527Sdavidn continue; 50320253Sjoerg } 50420253Sjoerg size = uend - ustart + 1; 50552527Sdavidn if (size <= skip) { 50620267Sjoerg skip -= size; 50752527Sdavidn ustart = uend = n; 50852527Sdavidn continue; 50952527Sdavidn } 51052527Sdavidn if (skip > 0) { 51152527Sdavidn ustart += skip; 51252527Sdavidn size -= skip; 51320253Sjoerg skip = 0; 51420253Sjoerg } 51520253Sjoerg if (size > limit) 51620253Sjoerg size = limit; 51720253Sjoerg if (debug && size == 1) 51830259Scharnier pwarn("%s %s %" PRId64 51952527Sdavidn " MARKED USED\n", 52052527Sdavidn "UNALLOCATED", name, ustart); 52152527Sdavidn else if (debug) 52252527Sdavidn pwarn("%s %sS %" PRId64 "-%" PRId64 52320253Sjoerg " MARKED USED\n", 52420253Sjoerg "UNALLOCATED", name, ustart, 52520253Sjoerg ustart + size - 1); 52652527Sdavidn if (usesysctl != 0) { 52752527Sdavidn cmd.value = ustart; 52852527Sdavidn cmd.size = size; 52952527Sdavidn if (sysctl(opcode, MIBSIZE, 0, 0, 53052527Sdavidn &cmd, sizeof cmd) == -1) { 53152527Sdavidn snprintf(buf, BUFSIZE, 53252527Sdavidn "FREE %s", name); 53352527Sdavidn rwerror(buf, cmd.value); 53452527Sdavidn } 53520253Sjoerg } 53652527Sdavidn limit -= size; 53752527Sdavidn if (limit <= 0) 53852527Sdavidn return; 53952527Sdavidn ustart = uend = n; 54052527Sdavidn } 54152527Sdavidn } 54252527Sdavidn } 54352527Sdavidn if (astart != -1) { 54452527Sdavidn if (astart == aend) 54520747Sdavidn (*msg)("ALLOCATED %s %" PRId64 546130629Srobert " MARKED FREE\n", name, astart); 547130629Srobert else 54820747Sdavidn (*msg)("ALLOCATED %sS %" PRId64 "-%" PRId64 54920747Sdavidn " MARKED FREE\n", 55030259Scharnier name, astart, aend); 55120747Sdavidn } 55230259Scharnier if (ustart != -1) { 55320747Sdavidn size = uend - ustart + 1; 55420747Sdavidn if (size <= skip) 555124382Siedowse return; 556124382Siedowse if (skip > 0) { 55764918Sgreen ustart += skip; 55864918Sgreen size -= skip; 55964918Sgreen } 56064918Sgreen if (size > limit) 56164918Sgreen size = limit; 56264918Sgreen if (debug) { 56364918Sgreen if (size == 1) 56420267Sjoerg pwarn("UNALLOCATED %s %" PRId64 56552527Sdavidn " MARKED USED\n", 56652527Sdavidn name, ustart); 56720267Sjoerg else 56820253Sjoerg pwarn("UNALLOCATED %sS %" PRId64 "-%" PRId64 56964918Sgreen " MARKED USED\n", 57052527Sdavidn name, ustart, ustart + size - 1); 57152527Sdavidn } 57252527Sdavidn if (usesysctl != 0) { 57352527Sdavidn cmd.value = ustart; 57452527Sdavidn cmd.size = size; 57520253Sjoerg if (sysctl(opcode, MIBSIZE, 0, 0, &cmd, 57630259Scharnier sizeof cmd) == -1) { 57744229Sdavidn snprintf(buf, BUFSIZE, "FREE %s", name); 57830259Scharnier rwerror(buf, cmd.value); 57920253Sjoerg } 58020253Sjoerg } 58120253Sjoerg } 58220253Sjoerg} 58320253Sjoerg 58420253Sjoergstatic void 58520253Sjoergclear_blocks(ufs2_daddr_t start, ufs2_daddr_t end) 58620253Sjoerg{ 58720253Sjoerg 58820253Sjoerg if (debug) 58920253Sjoerg printf("Zero frags %jd to %jd\n", start, end); 59020253Sjoerg if (Zflag) 59120253Sjoerg blzero(fswritefd, fsbtodb(&sblock, start), 59264918Sgreen lfragtosize(&sblock, end - start + 1)); 59364918Sgreen if (Eflag) 59464918Sgreen blerase(fswritefd, fsbtodb(&sblock, start), 59564918Sgreen lfragtosize(&sblock, end - start + 1)); 59664918Sgreen} 59752527Sdavidn