Building an undo log for in-memory blocks of data

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United States of America Patent

PATENT NO 9535853
APP PUB NO 20150186297A1
SERIAL NO

14144445

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Abstract

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Provided are techniques for building an undo log for in-memory blocks of data. Permission on a block of data in memory is set to prevent updates to that block of data using a memory protection function. In response to an update operation attempting to update the block of data in the memory, an interrupt with a location of the block of data is received, the block of data is copied to an undo log entry in an undo log, and the permission on the block of data in the memory is set to allow the update to that block of data to proceed using the memory protection function.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lashley, Scott D Portland, US 10 154
Miller,, III John F Lake Oswego, US 7 63

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