Optimal method for deleting sub-blocks of a pointer block that do not have on-disk metadata headers for addresses
US12045485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2022 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Nov 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0671
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of deleting a first pointer block of a plurality of pointer blocks of a file system from a storage device used by a plurality of applications, wherein the plurality of pointer blocks are each subdivided into sub-blocks, includes the steps of: determining that a first sub-block of the first pointer block is marked as being empty of any addresses of the file system at which storage space is allocated to files of the applications; determining that a second sub-block of the first pointer block has not been marked as being empty; in response to the determining that the second sub-block has not been marked as being empty, determining that the second sub-block does not contain any addresses of the file system at which storage space is allocated to the files of the applications; and deleting the first pointer block from the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.