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Btrfs-progs: add ability to replace missing dir item/dir indexes 

If we have everything except the dir item and dir index we can easily replace
them, so add this ability to btrfsck.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
master
Josef Bacik 2014-10-31 14:01:26 -04:00 committed by David Sterba
parent 2d80d0d645
commit 2dc4c0015f
1 changed files with 27 additions and 0 deletions
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27
cmds-check.c
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@ -1772,6 +1772,33 @@ static int repair_inode_backrefs(struct btrfs_root *root,
}
}
if (!delete && (!backref->found_dir_index &&
!backref->found_dir_item &&
backref->found_inode_ref)) {
struct btrfs_trans_handle *trans;
struct btrfs_key location;
location.objectid = rec->ino;
location.type = BTRFS_INODE_ITEM_KEY;
location.offset = 0;
trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
break;
}
fprintf(stderr, "adding missing dir index/item pair "
"for inode %llu\n",
(unsigned long long)rec->ino);
ret = btrfs_insert_dir_item(trans, root, backref->name,
backref->namelen,
backref->dir, &location,
imode_to_type(rec->imode),
backref->index);
BUG_ON(ret);
btrfs_commit_transaction(trans, root);
repaired++;
}
}
return ret ? ret : repaired;
}