Patent ID: 11907132
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. A computer program product comprising:
one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising instructions to:
receive a designated authority (DA) status transfer request from a first cache to a second cache of a corresponding cache line;
receive an indication that the first cache will invalidate a respective copy of the cache line without allowing any other access to the respective copy of the cache line prior to invalidation;
responsive to the received indication, allow the second cache to assume a DA status for the corresponding cache line prior to the first cache invalidating the respective copy of the cache line; and
deny access to the respective copy of the cache line until invalidation by the first cache is complete.