Btrfs: more inode indexed directory work

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 2a87e23ac9c..62d0c0916a7 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -80,6 +80,24 @@ int btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
 	return ret;
 }
 
+int btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans,
+				struct btrfs_root *root,
+				struct btrfs_path *path, u64 dir,
+				u64 objectid, int mod)
+{
+	int ret;
+	struct btrfs_key key;
+	int ins_len = mod < 0 ? -1 : 0;
+	int cow = mod != 0;
+
+	key.objectid = dir;
+	key.flags = 0;
+	btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
+	key.offset = objectid;
+	ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
+	return ret;
+}
+
 int btrfs_match_dir_item_name(struct btrfs_root *root,
 			      struct btrfs_path *path,
 			      const char *name, int name_len)