Method for implementing persistent file pre-allocation
US8639656B2 · kind B2 · utility
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4References
19Claims
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Key dates
| Filing date | Feb 2, 2007 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for pre-allocating non-initialized blocks of data in a file system. Each file contains a primary i-node to maintain file metadata. A secondary i-node is created and associated with the primary i-node. The secondary i-node contains non-initialized data blocks, and the primary i-node contains valid and initialized data blocks. A write operation to a non-initialized data block in a pre-allocated range stored in the secondary i-node directs the data block from the secondary i-node to the primary i-node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.