ReadBlockRun
uint8 *ReadBlockRun(block_run run);
block_run *indirect = (block_run *)fDisk->ReadBlockRun(fInode->data.double_indirect);
indirect = (block_run *)fDisk->ReadBlockRun(indirect[index]);
block_run *indirect = (block_run *)fDisk->ReadBlockRun(fInode->data.indirect);