SetRoot
fTree->SetRoot(fNodes[level]);
status_t SetRoot(off_t logical, fsblock_t* block);
void SetRoot(Node* root);
status_t status = fCurrentExtentTree->SetRoot(rootAddress, NULL);
fChunkTree->SetRoot(fSuperBlock.ChunkRoot(), NULL);
fRootTree->SetRoot(fSuperBlock.Root(), NULL);
fExtentTree->SetRoot(root->LogicalAddress(), NULL);
fFSTree->SetRoot(root->LogicalAddress(), NULL);
fDevTree->SetRoot(root->LogicalAddress(), NULL);
fChecksumTree->SetRoot(root->LogicalAddress(), NULL);
volume->SetRoot(this);
volume->SetRoot(NULL);
void SetRoot(Root* root)