1. A method for maintaining cache line information, the method comprising: storing directory state information for a cache line, wherein the directory state information for the cache line is associated with a directory state priority and a directory protection value for the cache line; receiving a request relating to the cache line from a requestor; extracting a read request priority with the directory state priority; comparing the extracted read request priority with the directory state priority; identifying that the request can be evaluated for further processing based on the comparing of the read request priority with the directory state priority, wherein the further processing of the request is contingent upon a protection level associated with the request and the directory protection value for the cache line; identifying the protection level associated with the request; and identifying that the requestor has permission to access the cache line based on the protection level associated with the request and the directory protection value for the cache line, wherein the request is performed in accordance to the directory protection value for the cache line and the protection level associated with the request.