Virtual deletion in merged file system directories
US7756821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2006 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jun 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/162
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An element of a file system is virtually deleted by creating a deletion marker for the element. Two or more separate physical file system directories are presented as one merged (virtual) file system directory to a process running in a silo. The operating system provides the merged view of the file system directories by monitoring file system requests made by processes in silos on a computer or computer system and filtering out those elements associated with deletion markers. Special processing is invoked in response to detecting certain types of file system access requests, including: enumeration, open, create, rename or delete.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.