1. A computer-implemented method for garbage collection in deduplicated data systems, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising: identifying a deduplicated data system; identifying at least one segment object added to the deduplicated data system during a garbage-collection process of the deduplicated data system; locking the segment object to prevent removal of the segment object by the garbage-collection process; unlocking the segment object after the garbage-collection process.