Patents by Inventor Jonathan E. Brassow

Jonathan E. Brassow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Augmented advisory lock mechanism for tightly-coupled clusters
    Patent number: 8645650
    Abstract: An inter-machine locking mechanism coordinates the access of shared resources in a tightly-coupled cluster that includes a number of processing systems. When a requesting processing system acquires a lock to access a resource, a comparison is made between values of a global counter and a local counter. The global counter indicates the number of times the lock is acquired exclusively by any of the processing systems. Based on the comparison result, the requesting processing system determines whether the resource has been modified since the last time it held the lock.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 4, 2014
    Assignee: Red Hat, Inc.
    Inventor: Jonathan E. Brassow
  • AUGMENTED ADVISORY LOCK MECHANISM FOR TIGHTLY-COUPLED CLUSTERS
    Publication number: 20110191561
    Abstract: An inter-machine locking mechanism coordinates the access of shared resources in a tightly-coupled cluster that includes a number of processing systems. When a requesting processing system acquires a lock to access a resource, a comparison is made between values of a global counter and a local counter. The global counter indicates the number of times the lock is acquired exclusively by any of the processing systems. Based on the comparison result, the requesting processing system determines whether the resource has been modified since the last time it held the lock.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 4, 2011
    Applicant: Red Hat, Inc.
    Inventor: Jonathan E. Brassow