- if (extent_mergeable(leaf, path->slots[0] - 1, inode->i_ino,
- bytenr, &other_start, &other_end)) {
- key.offset = other_start;
- del_slot = path->slots[0];
- del_nr++;
- ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
- 0, root->root_key.objectid,
- inode->i_ino, orig_offset);
- BUG_ON(ret);
- }
- split_end = 0;
- if (del_nr == 0) {
- btrfs_set_file_extent_type(leaf, fi,
- BTRFS_FILE_EXTENT_REG);
- goto done;
- }
-
- fi = btrfs_item_ptr(leaf, del_slot - 1,
- struct btrfs_file_extent_item);
- btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG);
- btrfs_set_file_extent_num_bytes(leaf, fi,
- extent_end - key.offset);
- btrfs_mark_buffer_dirty(leaf);
-
- ret = btrfs_del_items(trans, root, path, del_slot, del_nr);
- BUG_ON(ret);
- goto release;
- } else if (split == start) {
- if (locked_end < extent_end) {
- ret = try_lock_extent(&BTRFS_I(inode)->io_tree,
- locked_end, extent_end - 1, GFP_NOFS);
- if (!ret) {
- btrfs_release_path(root, path);
- lock_extent(&BTRFS_I(inode)->io_tree,
- locked_end, extent_end - 1, GFP_NOFS);
- locked_end = extent_end;
- goto again;
- }
- locked_end = extent_end;
+ if (extent_mergeable(leaf, path->slots[0] - 1,
+ inode->i_ino, bytenr, orig_offset,
+ &other_start, &other_end)) {
+ new_key.offset = end;
+ btrfs_set_item_key_safe(trans, root, path, &new_key);
+ fi = btrfs_item_ptr(leaf, path->slots[0],
+ struct btrfs_file_extent_item);
+ btrfs_set_file_extent_num_bytes(leaf, fi,
+ extent_end - end);
+ btrfs_set_file_extent_offset(leaf, fi,
+ end - orig_offset);
+ fi = btrfs_item_ptr(leaf, path->slots[0] - 1,
+ struct btrfs_file_extent_item);
+ btrfs_set_file_extent_num_bytes(leaf, fi,
+ end - other_start);
+ btrfs_mark_buffer_dirty(leaf);
+ goto out;