File system reorganization in the presence of inline compression
US11526469B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2017 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Dec 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/6058
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for file system reorganization in the presence of inline compression includes obtaining a virtual block pointer for an original compressed segment to be reorganized, the original compressed segment comprising compressed allocation units of data stored in a storage system, wherein the virtual block pointer comprises an extent list identifying the compressed allocation units in the original compressed segment and a pointer to where the original compressed segment is stored; copying only the referenced compressed allocation units in the original compressed segment to a new compressed segment in a substantially contiguous manner; updating the extent list to identify the referenced compressed allocation units in the new compressed segment, and the pointer to where the new compressed segment is stored; and freeing the original compressed segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.