Btrfs: Implement new dir index format

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

1 files changed, 8 insertions, 2 deletions

diff --git a/fs/btrfs/inode-item.c b/fs/btrfs/inode-item.c
index cba30b6cc6fe..d93451c66ba1 100644
--- a/fs/btrfs/inode-item.c
+++ b/fs/btrfs/inode-item.c
@@ -52,7 +52,7 @@ int find_name_in_backref(struct btrfs_path *path, const char * name,
 int btrfs_del_inode_ref(struct btrfs_trans_handle *trans,
                            struct btrfs_root *root,
                            const char *name, int name_len,
-                           u64 inode_objectid, u64 ref_objectid)
+                           u64 inode_objectid, u64 ref_objectid, u64 *index)
 {
         struct btrfs_path *path;
         struct btrfs_key key;
@@ -86,6 +86,10 @@ int btrfs_del_inode_ref(struct btrfs_trans_handle *trans,
         }
         leaf = path->nodes[0];
         item_size = btrfs_item_size_nr(leaf, path->slots[0]);
+
+        if (index)
+                *index = btrfs_inode_ref_index(leaf, ref);
+
         if (del_len == item_size) {
                 ret = btrfs_del_item(trans, root, path);
                 goto out;
@@ -106,7 +110,7 @@ out:
 int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
                            struct btrfs_root *root,
                            const char *name, int name_len,
-                           u64 inode_objectid, u64 ref_objectid)
+                           u64 inode_objectid, u64 ref_objectid, u64 index)
 {
         struct btrfs_path *path;
         struct btrfs_key key;
@@ -138,6 +142,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
                                      struct btrfs_inode_ref);
                 ref = (struct btrfs_inode_ref *)((unsigned long)ref + old_size);
                 btrfs_set_inode_ref_name_len(path->nodes[0], ref, name_len);
+                btrfs_set_inode_ref_index(path->nodes[0], ref, index);
                 ptr = (unsigned long)(ref + 1);
                 ret = 0;
         } else if (ret < 0) {
@@ -146,6 +151,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
                 ref = btrfs_item_ptr(path->nodes[0], path->slots[0],
                                      struct btrfs_inode_ref);
                 btrfs_set_inode_ref_name_len(path->nodes[0], ref, name_len);
+                btrfs_set_inode_ref_index(path->nodes[0], ref, index);
                 ptr = (unsigned long)(ref + 1);
         }
         write_extent_buffer(path->nodes[0], name, ptr, name_len);