/*
* 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);
}
/*
* allocate a data block with the specified number of fragments
*/
ufs2_daddr_t
allocblk(long frags)
{
int i, j, k, cg, baseblk;
struct cg *cgp = &cgrp;
if (frags <= 0 || frags > sblock.fs_frag)
return (0);
for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) {
for (j = 0; j <= sblock.fs_frag - frags; j++) {
if (testbmap(i + j))
continue;
for (k = 1; k < frags; k++)
if (testbmap(i + j + k))
break;
if (k < frags) {
j += k;
continue;
}
cg = dtog(&sblock, i + j);
getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize);
if (!check_cgmagic(cg, cgp))
return (0);
baseblk = dtogd(&sblock, i + j);
for (k = 0; k < frags; k++) {
setbmap(i + j + k);
clrbit(cg_blksfree(cgp), baseblk + k);
}
n_blks += frags;
if (frags == sblock.fs_frag)
cgp->cg_cs.cs_nbfree--;
else
cgp->cg_cs.cs_nffree -= frags;
cgdirty();
return (i + j);
}
}
return (0);
}
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;
}