item_start_offset 163 fs/btrfs/file-item.c u64 item_start_offset = 0; item_start_offset 223 fs/btrfs/file-item.c if (!item || disk_bytenr < item_start_offset || item_start_offset 252 fs/btrfs/file-item.c item_start_offset = found_key.offset; item_start_offset 255 fs/btrfs/file-item.c item_last_offset = item_start_offset + item_start_offset 265 fs/btrfs/file-item.c diff = disk_bytenr - item_start_offset;