static void add_dotdot(struct gfs2_inode *ip)
{
struct dir_info *di;
struct gfs2_sbd *sdp = ip->i_sbd;
int err;
log_info( _("Adding .. entry to directory %llu (0x%llx) pointing back "
"to lost+found\n"),
(unsigned long long)ip->i_di.di_num.no_addr,
(unsigned long long)ip->i_di.di_num.no_addr);
/* If there's a pre-existing .. directory entry, we have to
back out the links. */
di = dirtree_find(ip->i_di.di_num.no_addr);
if (di && valid_block(sdp, di->dotdot_parent.no_addr)) {
struct gfs2_inode *dip;
log_debug(_("Directory (0x%llx) already had a "
"\"..\" link to (0x%llx).\n"),
(unsigned long long)ip->i_di.di_num.no_addr,
(unsigned long long)di->dotdot_parent.no_addr);
dip = fsck_load_inode(sdp, di->dotdot_parent.no_addr);
if (dip->i_di.di_num.no_formal_ino ==
di->dotdot_parent.no_formal_ino) {
decr_link_count(di->dotdot_parent.no_addr,
ip->i_di.di_num.no_addr, sdp->gfs1,
_(".. unlinked, moving to lost+found"));
if (dip->i_di.di_nlink > 0) {
dip->i_di.di_nlink--;
set_di_nlink(dip); /* keep inode tree in sync */
log_debug(_("Decrementing its links to %d\n"),
dip->i_di.di_nlink);
bmodified(dip->i_bh);
} else if (!dip->i_di.di_nlink) {
log_debug(_("Its link count is zero.\n"));
} else {
log_debug(_("Its link count is %d! Changing "
"it to 0.\n"), dip->i_di.di_nlink);
dip->i_di.di_nlink = 0;
set_di_nlink(dip); /* keep inode tree in sync */
bmodified(dip->i_bh);
}
} else {
log_debug(_("Directory (0x%llx)'s link to parent "
"(0x%llx) had a formal inode discrepancy: "
"was 0x%llx, expected 0x%llx\n"),
(unsigned long long)ip->i_di.di_num.no_addr,
(unsigned long long)di->dotdot_parent.no_addr,
di->dotdot_parent.no_formal_ino,
dip->i_di.di_num.no_formal_ino);
log_debug(_("The parent directory was not changed.\n"));
}
fsck_inode_put(&dip);
di = NULL;
} else {
if (di)
log_debug(_("Couldn't find a valid \"..\" entry "
"for orphan directory (0x%llx): "
"'..' = 0x%llx\n"),
(unsigned long long)ip->i_di.di_num.no_addr,
(unsigned long long)di->dotdot_parent.no_addr);
else
log_debug(_("Couldn't find directory (0x%llx) "
"in directory tree.\n"),
(unsigned long long)ip->i_di.di_num.no_addr);
}
if (gfs2_dirent_del(ip, "..", 2))
log_warn( _("add_inode_to_lf: Unable to remove "
"\"..\" directory entry.\n"));
err = dir_add(ip, "..", 2, &(lf_dip->i_di.di_num),
(sdp->gfs1 ? GFS_FILE_DIR : DT_DIR));
if (err) {
log_crit(_("Error adding .. directory: %s\n"),
strerror(errno));
exit(FSCK_ERROR);
}
}
int incr_link_count(struct gfs2_inum no, struct gfs2_inode *ip,
const char *why)
{
struct inode_info *ii = NULL;
uint64_t referenced_from = ip ? ip->i_di.di_num.no_addr : 0;
struct dir_info *di;
struct gfs2_inode *link_ip;
di = dirtree_find(no.no_addr);
if (di) {
if (di->dinode.no_formal_ino != no.no_formal_ino)
return 1;
di->counted_links++;
whyincr(no.no_addr, why, referenced_from, di->counted_links);
return 0;
}
ii = inodetree_find(no.no_addr);
/* If the list has entries, look for one that matches inode_no */
if (ii) {
if (ii->di_num.no_formal_ino != no.no_formal_ino)
return 1;
ii->counted_links++;
whyincr(no.no_addr, why, referenced_from, ii->counted_links);
return 0;
}
if (link1_type(&clink1map, no.no_addr) != 1) {
link1_set(&clink1map, no.no_addr, 1);
whyincr(no.no_addr, why, referenced_from, 1);
return 0;
}
link_ip = fsck_load_inode(ip->i_sbd, no.no_addr);
/* Check formal ino against dinode before adding to inode tree. */
if (no.no_formal_ino != ip->i_di.di_num.no_formal_ino) {
fsck_inode_put(&link_ip);
return 1;
}
/* Move it from the link1 maps to a real inode tree entry */
link1_set(&nlink1map, no.no_addr, 0);
link1_set(&clink1map, no.no_addr, 0);
/* If no match was found, it must be a hard link. In theory, it can't
be a duplicate because those were resolved in pass1b. Add a new
inodetree entry and set its counted links to 2 */
ii = inodetree_insert(no);
if (!ii) {
log_debug( _("Ref: (0x%llx) Error incrementing link for "
"(0x%llx)!\n"),
(unsigned long long)referenced_from,
(unsigned long long)no.no_addr);
fsck_inode_put(&link_ip);
return -1;
}
ii->di_num = link_ip->i_di.di_num;
fsck_inode_put(&link_ip);
ii->di_nlink = 1; /* Must be 1 or it wouldn't have gotten into the
nlink1map */
ii->counted_links = 2;
whyincr(no.no_addr, why, referenced_from, ii->counted_links);
return 0;
}