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Efficient and Consistent Para-Virtual I/O System

  • US 20160232016A1
  • Filed: 04/15/2016
  • Published: 08/11/2016
  • Est. Priority Date: 09/16/2014
  • Status: Abandoned Application
First Claim
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1. A method comprising:

  • updating a state of a filesystem associated with a para-virtual I/O system, including performing semantic journaling in support of the update, the semantic journaling comprising writing one or more data blocks and logging metadata updates to a journal;

    receiving a cache flush request;

    classifying the received request based on semantic information, wherein the classification provides an order of commands for processing the received request;

    converting the classification into an order of committed writes; and

    processing the order of committed writes, including enforcing the order of committed writes, wherein the enforcement provides a consistent virtual disk image.

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