Method and computer program product for reducing storage space requirements in a computer file system comprising linkable files are provided. The method allows creating a list of each file eligible for storage reduction. The listed files are processed to determine files comprising duplicative content. At least one of the following is performed: a) determining a presence of an existent link pointing to files with duplicative content, or b) in the absence of an existent link, creating a link for coupling files with duplicative content. One may then eliminate storage space for any redundant duplicative content, thereby reducing storage size requirements for the file system.