/*
* Dump pass 1.
*
* Walk the inode list for a filesystem to find all allocated inodes
* that have been modified since the previous dump time. Also, find all
* the directories in the filesystem.
*/
int
mapfiles(ufs1_ino_t maxino, long *tape_size)
{
int mode;
ufs1_ino_t ino;
struct ufs1_dinode *dp;
int anydirskipped = 0;
for (ino = ROOTINO; ino < maxino; ino++) {
dp = getino(ino);
if ((mode = (dp->di_mode & IFMT)) == 0)
continue;
/*
* Everything must go in usedinomap so that a check
* for "in dumpdirmap but not in usedinomap" to detect
* dirs with nodump set has a chance of succeeding
* (this is used in mapdirs()).
*/
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp)) {
SETINO(ino, dumpinomap);
if (mode != IFREG && mode != IFDIR && mode != IFLNK)
*tape_size += 1;
else
*tape_size += blockest(dp);
continue;
}
if (mode == IFDIR) {
if (!nonodump && (dp->di_flags & UF_NODUMP))
CLRINO(ino, usedinomap);
anydirskipped = 1;
}
}
/*
* Restore gets very upset if the root is not dumped,
* so ensure that it always is dumped.
*/
SETINO(ROOTINO, dumpinomap);
return (anydirskipped);
}
/*
* Determine if given inode should be dumped
*/
void
mapfileino(ino_t ino, off_t *tapesize, int *dirskipped)
{
int mode;
union dinode *dp;
dp = getino(ino, &mode);
if (mode == 0)
return;
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp)) {
SETINO(ino, dumpinomap);
if (mode != IFREG && mode != IFDIR && mode != IFLNK)
*tapesize += 1;
else
*tapesize += blockest(dp);
return;
}
if (mode == IFDIR)
*dirskipped = 1;
}
/*
* Dump pass 1.
*
* Walk the inode list for a file system to find all allocated inodes
* that have been modified since the previous dump time. Also, find all
* the directories in the file system.
*/
int
mapfiles(ino_t maxino, long *tapesize)
{
int i, cg, mode, inosused;
int anydirskipped = 0;
union dinode *dp;
struct cg *cgp;
ino_t ino;
u_char *cp;
if ((cgp = malloc(sblock->fs_cgsize)) == NULL)
quit("mapfiles: cannot allocate memory.\n");
for (cg = 0; cg < sblock->fs_ncg; cg++) {
ino = cg * sblock->fs_ipg;
bread(fsbtodb(sblock, cgtod(sblock, cg)), (char *)cgp,
sblock->fs_cgsize);
if (sblock->fs_magic == FS_UFS2_MAGIC)
inosused = cgp->cg_initediblk;
else
inosused = sblock->fs_ipg;
/*
* 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 (sblock->fs_flags & FS_DOSOFTDEP) {
if (!cg_chkmagic(cgp))
quit("mapfiles: cg %d: bad magic number\n", cg);
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)
continue;
}
for (i = 0; i < inosused; i++, ino++) {
if (ino < ROOTINO ||
(dp = getino(ino, &mode)) == NULL ||
(mode & IFMT) == 0)
continue;
if (ino >= maxino) {
msg("Skipping inode %d >= maxino %d\n",
ino, maxino);
continue;
}
/*
* Everything must go in usedinomap so that a check
* for "in dumpdirmap but not in usedinomap" to detect
* dirs with nodump set has a chance of succeeding
* (this is used in mapdirs()).
*/
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp)) {
SETINO(ino, dumpinomap);
if (mode != IFREG &&
mode != IFDIR &&
mode != IFLNK)
*tapesize += 1;
else
*tapesize += blockest(dp);
continue;
}
if (mode == IFDIR) {
if (!nonodump &&
(DIP(dp, di_flags) & UF_NODUMP))
CLRINO(ino, usedinomap);
anydirskipped = 1;
}
}
}
/*
* Restore gets very upset if the root is not dumped,
* so ensure that it always is dumped.
*/
SETINO(ROOTINO, dumpinomap);
return (anydirskipped);
}
