The described herein relates to repairing a file system. Repairing the file system includes identifying a corrupted node of a tree corresponding to the file system and determining a status of a parent node of the corrupted node based on a status bit of the parent node. Repairing the file system also includes disabling the parent node to an off-line mode when the status bit indicates that the parent node is in an on-line mode; fixing the corrupted node while the parent node is in the off-line mode; and enabling the parent node to the on-line mode in response to fixing the at least one corrupted node.