System and method for managing file system extended attributes
US6850929B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2001 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Nov 24, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99944
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An extended attribute data page includes extended attribute information about a number of files. The page is divided into areas, each area corresponding to a different file. A given area is further divided into a number of lines containing information about the extended attribute data. Areas include bitmaps indicating available space in the data space and address information for addressing off-page data areas. A directory is included of data types stored in the data area, and additional lines store extended attribute data. The extended attribute directory maintains a list of data types currently stored and related information. Including availability information about each line along with addresses to areas storing extended attribute data enables the extended attribute manager to efficiently determine where to place extended attribute data, mark deleted lines as being available, retrieve data being requested by a process, and modify the contents of a given extended attribute data type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.