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File system node updates

  • US 8,495,044 B2
  • Filed: 09/02/2009
  • Issued: 07/23/2013
  • Est. Priority Date: 09/02/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method, comprising:

  • in response to a request to a file system to perform a requested update;

    acquiring a lock of a first node in the file system;

    performing an update of the first node while the lock of the first node is held;

    releasing the lock of the first node;

    sending a notification from the first node to a second node, the notification indicating an update of the first node has been performed;

    in response to the notification, acquiring a lock of the second node in the file system, performing the update of the first node being independent of acquiring the lock of the second node;

    performing an update of the second node while the lock of the second node is held, the update of the second node reflecting the update of the first node;

    sending a response to the request after sending the notification but without waiting for the update of the second node to be completed, the response indicating that the requested update is complete; and

    releasing the lock of the second node.

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