/*
* allocate an unused inode
*/
ino_t
allocino(ino_t request, int type)
{
ino_t ino;
union dinode *dp;
struct bufarea *cgbp;
struct cg *cgp;
int cg;
if (request == 0)
request = ROOTINO;
else if (inoinfo(request)->ino_state != USTATE)
return (0);
for (ino = request; ino < maxino; ino++)
if (inoinfo(ino)->ino_state == USTATE)
break;
if (ino == maxino)
return (0);
cg = ino_to_cg(&sblock, ino);
cgbp = cgget(cg);
cgp = cgbp->b_un.b_cg;
if (!check_cgmagic(cg, cgbp))
return (0);
setbit(cg_inosused(cgp), ino % sblock.fs_ipg);
cgp->cg_cs.cs_nifree--;
switch (type & IFMT) {
case IFDIR:
inoinfo(ino)->ino_state = DSTATE;
cgp->cg_cs.cs_ndir++;
break;
case IFREG:
case IFLNK:
inoinfo(ino)->ino_state = FSTATE;
break;
default:
return (0);
}
dirty(cgbp);
dp = ginode(ino);
DIP_SET(dp, di_db[0], allocblk((long)1));
if (DIP(dp, di_db[0]) == 0) {
inoinfo(ino)->ino_state = USTATE;
return (0);
}
DIP_SET(dp, di_mode, type);
DIP_SET(dp, di_flags, 0);
DIP_SET(dp, di_atime, time(NULL));
DIP_SET(dp, di_ctime, DIP(dp, di_atime));
DIP_SET(dp, di_mtime, DIP(dp, di_ctime));
DIP_SET(dp, di_mtimensec, 0);
DIP_SET(dp, di_ctimensec, 0);
DIP_SET(dp, di_atimensec, 0);
DIP_SET(dp, di_size, sblock.fs_fsize);
DIP_SET(dp, di_blocks, btodb(sblock.fs_fsize));
n_files++;
inodirty();
inoinfo(ino)->ino_type = IFTODT(type);
return (ino);
}
void
pass1(void)
{
struct inostat *info;
struct inodesc idesc;
struct bufarea *cgbp;
struct cg *cgp;
ino_t inumber, inosused, mininos;
ufs2_daddr_t i, cgd;
u_int8_t *cp;
int c, rebuildcg;
badblk = dupblk = lastino = 0;
/*
* Set file system reserved blocks in used block map.
*/
for (c = 0; c < sblock.fs_ncg; c++) {
cgd = cgdmin(&sblock, c);
if (c == 0) {
i = cgbase(&sblock, c);
} else
i = cgsblock(&sblock, c);
for (; i < cgd; i++)
setbmap(i);
}
i = sblock.fs_csaddr;
cgd = i + howmany(sblock.fs_cssize, sblock.fs_fsize);
for (; i < cgd; i++)
setbmap(i);
/*
* Find all allocated blocks.
*/
memset(&idesc, 0, sizeof(struct inodesc));
idesc.id_func = pass1check;
n_files = n_blks = 0;
for (c = 0; c < sblock.fs_ncg; c++) {
inumber = c * sblock.fs_ipg;
setinodebuf(inumber);
cgbp = cgget(c);
cgp = cgbp->b_un.b_cg;
rebuildcg = 0;
if (!check_cgmagic(c, cgbp))
rebuildcg = 1;
if (!rebuildcg && sblock.fs_magic == FS_UFS2_MAGIC) {
inosused = cgp->cg_initediblk;
if (inosused > sblock.fs_ipg) {
pfatal(
"Too many initialized inodes (%ju > %d) in cylinder group %d\nReset to %d\n",
(uintmax_t)inosused,
sblock.fs_ipg, c, sblock.fs_ipg);
inosused = sblock.fs_ipg;
}
} else {
inosused = sblock.fs_ipg;
}
if (got_siginfo) {
printf("%s: phase 1: cyl group %d of %d (%d%%)\n",
cdevname, c, sblock.fs_ncg,
c * 100 / sblock.fs_ncg);
got_siginfo = 0;
}
if (got_sigalarm) {
setproctitle("%s p1 %d%%", cdevname,
c * 100 / sblock.fs_ncg);
got_sigalarm = 0;
}
/*
* If we are using soft updates, then we can trust the
* cylinder group inode allocation maps to tell us which
* inodes are allocated. We will scan the used inode map
* to find the inodes that are really in use, and then
* read only those inodes in from disk.
*/
if ((preen || inoopt) && usedsoftdep && !rebuildcg) {
cp = &cg_inosused(cgp)[(inosused - 1) / CHAR_BIT];
for ( ; inosused > 0; inosused -= CHAR_BIT, cp--) {
if (*cp == 0)
continue;
for (i = 1 << (CHAR_BIT - 1); i > 0; i >>= 1) {
if (*cp & i)
break;
inosused--;
}
break;
}
if (inosused < 0)
inosused = 0;
}
/*
* Allocate inoinfo structures for the allocated inodes.
*/
inostathead[c].il_numalloced = inosused;
if (inosused == 0) {
inostathead[c].il_stat = NULL;
continue;
}
info = Calloc((unsigned)inosused, sizeof(struct inostat));
if (info == NULL)
errx(EEXIT, "cannot alloc %u bytes for inoinfo",
(unsigned)(sizeof(struct inostat) * inosused));
inostathead[c].il_stat = info;
/*
* Scan the allocated inodes.
*/
for (i = 0; i < inosused; i++, inumber++) {
if (inumber < ROOTINO) {
(void)getnextinode(inumber, rebuildcg);
continue;
}
/*
* NULL return indicates probable end of allocated
* inodes during cylinder group rebuild attempt.
* We always keep trying until we get to the minimum
* valid number for this cylinder group.
*/
if (checkinode(inumber, &idesc, rebuildcg) == 0 &&
i > cgp->cg_initediblk)
break;
}
/*
* This optimization speeds up future runs of fsck
* by trimming down the number of inodes in cylinder
* groups that formerly had many inodes but now have
* fewer in use.
*/
mininos = roundup(inosused + INOPB(&sblock), INOPB(&sblock));
if (inoopt && !preen && !rebuildcg &&
sblock.fs_magic == FS_UFS2_MAGIC &&
cgp->cg_initediblk > 2 * INOPB(&sblock) &&
mininos < cgp->cg_initediblk) {
i = cgp->cg_initediblk;
if (mininos < 2 * INOPB(&sblock))
cgp->cg_initediblk = 2 * INOPB(&sblock);
else
cgp->cg_initediblk = mininos;
pwarn("CYLINDER GROUP %d: RESET FROM %ju TO %d %s\n",
c, i, cgp->cg_initediblk, "VALID INODES");
dirty(cgbp);
}
if (inosused < sblock.fs_ipg)
continue;
lastino += 1;
if (lastino < (c * sblock.fs_ipg))
inosused = 0;
else
inosused = lastino - (c * sblock.fs_ipg);
if (rebuildcg && inosused > cgp->cg_initediblk &&
sblock.fs_magic == FS_UFS2_MAGIC) {
cgp->cg_initediblk = roundup(inosused, INOPB(&sblock));
pwarn("CYLINDER GROUP %d: FOUND %d VALID INODES\n", c,
cgp->cg_initediblk);
}
/*
* If we were not able to determine in advance which inodes
* were in use, then reduce the size of the inoinfo structure
* to the size necessary to describe the inodes that we
* really found.
*/
if (inumber == lastino)
continue;
inostathead[c].il_numalloced = inosused;
if (inosused == 0) {
free(inostathead[c].il_stat);
inostathead[c].il_stat = NULL;
continue;
}
info = Calloc((unsigned)inosused, sizeof(struct inostat));
if (info == NULL)
errx(EEXIT, "cannot alloc %u bytes for inoinfo",
(unsigned)(sizeof(struct inostat) * inosused));
memmove(info, inostathead[c].il_stat, inosused * sizeof(*info));
free(inostathead[c].il_stat);
inostathead[c].il_stat = info;
}
void
pass5(void)
{
int c, i, j, blk, frags, basesize, mapsize;
int inomapsize, blkmapsize;
struct fs *fs = &sblock;
ufs2_daddr_t d, dbase, dmax, start;
int rewritecg = 0;
struct csum *cs;
struct csum_total cstotal;
struct inodesc idesc[3];
char buf[MAXBSIZE];
struct cg *cg, *newcg = (struct cg *)buf;
struct bufarea *cgbp;
inoinfo(WINO)->ino_state = USTATE;
memset(newcg, 0, (size_t)fs->fs_cgsize);
newcg->cg_niblk = fs->fs_ipg;
if (cvtlevel >= 3) {
if (fs->fs_maxcontig < 2 && fs->fs_contigsumsize > 0) {
if (preen)
pwarn("DELETING CLUSTERING MAPS\n");
if (preen || reply("DELETE CLUSTERING MAPS")) {
fs->fs_contigsumsize = 0;
rewritecg = 1;
sbdirty();
}
}
if (fs->fs_maxcontig > 1) {
const char *doit = 0;
if (fs->fs_contigsumsize < 1) {
doit = "CREAT";
} else if (fs->fs_contigsumsize < fs->fs_maxcontig &&
fs->fs_contigsumsize < FS_MAXCONTIG) {
doit = "EXPAND";
}
if (doit) {
i = fs->fs_contigsumsize;
fs->fs_contigsumsize =
MIN(fs->fs_maxcontig, FS_MAXCONTIG);
if (CGSIZE(fs) > (u_int)fs->fs_bsize) {
pwarn("CANNOT %s CLUSTER MAPS\n", doit);
fs->fs_contigsumsize = i;
} else if (preen ||
reply("CREATE CLUSTER MAPS")) {
if (preen)
pwarn("%sING CLUSTER MAPS\n",
doit);
fs->fs_cgsize =
fragroundup(fs, CGSIZE(fs));
rewritecg = 1;
sbdirty();
}
}
}
}
basesize = &newcg->cg_space[0] - (u_char *)(&newcg->cg_firstfield);
if (sblock.fs_magic == FS_UFS2_MAGIC) {
newcg->cg_iusedoff = basesize;
} else {
/*
* We reserve the space for the old rotation summary
* tables for the benefit of old kernels, but do not
* maintain them in modern kernels. In time, they can
* go away.
*/
newcg->cg_old_btotoff = basesize;
newcg->cg_old_boff = newcg->cg_old_btotoff +
fs->fs_old_cpg * sizeof(int32_t);
newcg->cg_iusedoff = newcg->cg_old_boff +
fs->fs_old_cpg * fs->fs_old_nrpos * sizeof(u_int16_t);
memset(&newcg->cg_space[0], 0, newcg->cg_iusedoff - basesize);
}
inomapsize = howmany(fs->fs_ipg, CHAR_BIT);
newcg->cg_freeoff = newcg->cg_iusedoff + inomapsize;
blkmapsize = howmany(fs->fs_fpg, CHAR_BIT);
newcg->cg_nextfreeoff = newcg->cg_freeoff + blkmapsize;
if (fs->fs_contigsumsize > 0) {
newcg->cg_clustersumoff = newcg->cg_nextfreeoff -
sizeof(u_int32_t);
newcg->cg_clustersumoff =
roundup(newcg->cg_clustersumoff, sizeof(u_int32_t));
newcg->cg_clusteroff = newcg->cg_clustersumoff +
(fs->fs_contigsumsize + 1) * sizeof(u_int32_t);
newcg->cg_nextfreeoff = newcg->cg_clusteroff +
howmany(fragstoblks(fs, fs->fs_fpg), CHAR_BIT);
}
newcg->cg_magic = CG_MAGIC;
mapsize = newcg->cg_nextfreeoff - newcg->cg_iusedoff;
memset(&idesc[0], 0, sizeof idesc);
for (i = 0; i < 3; i++)
idesc[i].id_type = ADDR;
memset(&cstotal, 0, sizeof(struct csum_total));
dmax = blknum(fs, fs->fs_size + fs->fs_frag - 1);
for (d = fs->fs_size; d < dmax; d++)
setbmap(d);
for (c = 0; c < fs->fs_ncg; c++) {
if (got_siginfo) {
printf("%s: phase 5: cyl group %d of %d (%d%%)\n",
cdevname, c, sblock.fs_ncg,
c * 100 / sblock.fs_ncg);
got_siginfo = 0;
}
if (got_sigalarm) {
setproctitle("%s p5 %d%%", cdevname,
c * 100 / sblock.fs_ncg);
got_sigalarm = 0;
}
cgbp = cgget(c);
cg = cgbp->b_un.b_cg;
if (!cg_chkmagic(cg))
pfatal("CG %d: BAD MAGIC NUMBER\n", c);
newcg->cg_time = cg->cg_time;
newcg->cg_old_time = cg->cg_old_time;
newcg->cg_unrefs = cg->cg_unrefs;
newcg->cg_cgx = c;
dbase = cgbase(fs, c);
dmax = dbase + fs->fs_fpg;
if (dmax > fs->fs_size)
dmax = fs->fs_size;
newcg->cg_ndblk = dmax - dbase;
if (fs->fs_magic == FS_UFS1_MAGIC) {
if (c == fs->fs_ncg - 1)
newcg->cg_old_ncyl = howmany(newcg->cg_ndblk,
fs->fs_fpg / fs->fs_old_cpg);
else
newcg->cg_old_ncyl = fs->fs_old_cpg;
newcg->cg_old_niblk = fs->fs_ipg;
newcg->cg_niblk = 0;
}
if (fs->fs_contigsumsize > 0)
newcg->cg_nclusterblks = newcg->cg_ndblk / fs->fs_frag;
newcg->cg_cs.cs_ndir = 0;
newcg->cg_cs.cs_nffree = 0;
newcg->cg_cs.cs_nbfree = 0;
newcg->cg_cs.cs_nifree = fs->fs_ipg;
if (cg->cg_rotor >= 0 && cg->cg_rotor < newcg->cg_ndblk)
newcg->cg_rotor = cg->cg_rotor;
else
newcg->cg_rotor = 0;
if (cg->cg_frotor >= 0 && cg->cg_frotor < newcg->cg_ndblk)
newcg->cg_frotor = cg->cg_frotor;
else
newcg->cg_frotor = 0;
if (cg->cg_irotor >= 0 && cg->cg_irotor < fs->fs_ipg)
newcg->cg_irotor = cg->cg_irotor;
else
newcg->cg_irotor = 0;
if (fs->fs_magic == FS_UFS1_MAGIC) {
newcg->cg_initediblk = 0;
} else {
if ((unsigned)cg->cg_initediblk > fs->fs_ipg)
newcg->cg_initediblk = fs->fs_ipg;
else
newcg->cg_initediblk = cg->cg_initediblk;
}
memset(&newcg->cg_frsum[0], 0, sizeof newcg->cg_frsum);
memset(cg_inosused(newcg), 0, (size_t)(mapsize));
j = fs->fs_ipg * c;
for (i = 0; i < inostathead[c].il_numalloced; j++, i++) {
switch (inoinfo(j)->ino_state) {
case USTATE:
break;
case DSTATE:
case DCLEAR:
case DFOUND:
case DZLINK:
newcg->cg_cs.cs_ndir++;
/* FALLTHROUGH */
case FSTATE:
case FCLEAR:
case FZLINK:
newcg->cg_cs.cs_nifree--;
setbit(cg_inosused(newcg), i);
break;
default:
if (j < (int)ROOTINO)
break;
errx(EEXIT, "BAD STATE %d FOR INODE I=%d",
inoinfo(j)->ino_state, j);
}
}
if (c == 0)
for (i = 0; i < (int)ROOTINO; i++) {
setbit(cg_inosused(newcg), i);
newcg->cg_cs.cs_nifree--;
}
start = -1;
for (i = 0, d = dbase;
d < dmax;
d += fs->fs_frag, i += fs->fs_frag) {
frags = 0;
for (j = 0; j < fs->fs_frag; j++) {
if (testbmap(d + j)) {
if (Eflag && start != -1) {
clear_blocks(start, d + j - 1);
start = -1;
}
continue;
}
if (start == -1)
start = d + j;
setbit(cg_blksfree(newcg), i + j);
frags++;
}
if (frags == fs->fs_frag) {
newcg->cg_cs.cs_nbfree++;
if (fs->fs_contigsumsize > 0)
setbit(cg_clustersfree(newcg),
i / fs->fs_frag);
} else if (frags > 0) {
newcg->cg_cs.cs_nffree += frags;
blk = blkmap(fs, cg_blksfree(newcg), i);
ffs_fragacct(fs, blk, newcg->cg_frsum, 1);
}
}
if (Eflag && start != -1)
clear_blocks(start, d - 1);
if (fs->fs_contigsumsize > 0) {
int32_t *sump = cg_clustersum(newcg);
u_char *mapp = cg_clustersfree(newcg);
int map = *mapp++;
int bit = 1;
int run = 0;
for (i = 0; i < newcg->cg_nclusterblks; i++) {
if ((map & bit) != 0) {
run++;
} else if (run != 0) {
if (run > fs->fs_contigsumsize)
run = fs->fs_contigsumsize;
sump[run]++;
run = 0;
}
if ((i & (CHAR_BIT - 1)) != (CHAR_BIT - 1)) {
bit <<= 1;
} else {
map = *mapp++;
bit = 1;
}
}
if (run != 0) {
if (run > fs->fs_contigsumsize)
run = fs->fs_contigsumsize;
sump[run]++;
}
}
if (bkgrdflag != 0) {
cstotal.cs_nffree += cg->cg_cs.cs_nffree;
cstotal.cs_nbfree += cg->cg_cs.cs_nbfree;
cstotal.cs_nifree += cg->cg_cs.cs_nifree;
cstotal.cs_ndir += cg->cg_cs.cs_ndir;
} else {
cstotal.cs_nffree += newcg->cg_cs.cs_nffree;
cstotal.cs_nbfree += newcg->cg_cs.cs_nbfree;
cstotal.cs_nifree += newcg->cg_cs.cs_nifree;
cstotal.cs_ndir += newcg->cg_cs.cs_ndir;
}
cs = &fs->fs_cs(fs, c);
if (cursnapshot == 0 &&
memcmp(&newcg->cg_cs, cs, sizeof *cs) != 0 &&
dofix(&idesc[0], "FREE BLK COUNT(S) WRONG IN SUPERBLK")) {
memmove(cs, &newcg->cg_cs, sizeof *cs);
sbdirty();
}
if (rewritecg) {
memmove(cg, newcg, (size_t)fs->fs_cgsize);
dirty(cgbp);
continue;
}
if (cursnapshot == 0 &&
memcmp(newcg, cg, basesize) != 0 &&
dofix(&idesc[2], "SUMMARY INFORMATION BAD")) {
memmove(cg, newcg, (size_t)basesize);
dirty(cgbp);
}
if (bkgrdflag != 0 || usedsoftdep || debug)
update_maps(cg, newcg, bkgrdflag);
if (cursnapshot == 0 &&
memcmp(cg_inosused(newcg), cg_inosused(cg), mapsize) != 0 &&
dofix(&idesc[1], "BLK(S) MISSING IN BIT MAPS")) {
memmove(cg_inosused(cg), cg_inosused(newcg),
(size_t)mapsize);
dirty(cgbp);
}
}
if (cursnapshot == 0 &&
memcmp(&cstotal, &fs->fs_cstotal, sizeof cstotal) != 0
&& dofix(&idesc[0], "SUMMARY BLK COUNT(S) WRONG IN SUPERBLK")) {
memmove(&fs->fs_cstotal, &cstotal, sizeof cstotal);
fs->fs_ronly = 0;
fs->fs_fmod = 0;
sbdirty();
}
/*
* When doing background fsck on a snapshot, figure out whether
* the superblock summary is inaccurate and correct it when
* necessary.
*/
if (cursnapshot != 0) {
cmd.size = 1;
cmd.value = cstotal.cs_ndir - fs->fs_cstotal.cs_ndir;
if (cmd.value != 0) {
if (debug)
printf("adjndir by %+" PRIi64 "\n", cmd.value);
if (bkgrdsumadj == 0 || sysctl(adjndir, MIBSIZE, 0, 0,
&cmd, sizeof cmd) == -1)
rwerror("ADJUST NUMBER OF DIRECTORIES", cmd.value);
}
cmd.value = cstotal.cs_nbfree - fs->fs_cstotal.cs_nbfree;
if (cmd.value != 0) {
if (debug)
printf("adjnbfree by %+" PRIi64 "\n", cmd.value);
if (bkgrdsumadj == 0 || sysctl(adjnbfree, MIBSIZE, 0, 0,
&cmd, sizeof cmd) == -1)
rwerror("ADJUST NUMBER OF FREE BLOCKS", cmd.value);
}
cmd.value = cstotal.cs_nifree - fs->fs_cstotal.cs_nifree;
if (cmd.value != 0) {
if (debug)
printf("adjnifree by %+" PRIi64 "\n", cmd.value);
if (bkgrdsumadj == 0 || sysctl(adjnifree, MIBSIZE, 0, 0,
&cmd, sizeof cmd) == -1)
rwerror("ADJUST NUMBER OF FREE INODES", cmd.value);
}
cmd.value = cstotal.cs_nffree - fs->fs_cstotal.cs_nffree;
if (cmd.value != 0) {
if (debug)
printf("adjnffree by %+" PRIi64 "\n", cmd.value);
if (bkgrdsumadj == 0 || sysctl(adjnffree, MIBSIZE, 0, 0,
&cmd, sizeof cmd) == -1)
rwerror("ADJUST NUMBER OF FREE FRAGS", cmd.value);
}
cmd.value = cstotal.cs_numclusters - fs->fs_cstotal.cs_numclusters;
if (cmd.value != 0) {
if (debug)
printf("adjnumclusters by %+" PRIi64 "\n", cmd.value);
if (bkgrdsumadj == 0 || sysctl(adjnumclusters, MIBSIZE, 0, 0,
&cmd, sizeof cmd) == -1)
rwerror("ADJUST NUMBER OF FREE CLUSTERS", cmd.value);
}
}
}