From 2dc4c0015ffc0ec1ff47ef1eda51659dae98f195 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 31 Oct 2014 14:01:26 -0400 Subject: [PATCH] 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 Signed-off-by: David Sterba --- cmds-check.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/cmds-check.c b/cmds-check.c index 923fb10c..f42e3c5c 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -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; }