Data storage access method, device and apparatus for persistent memory
US11086560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2019 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Jan 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0679
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses a data storage access method, device and apparatus for persistent memory. The method includes: enabling a file system in device to receive, in a kernel space, an access request of a user library, where the user library operates in user mode, and the access request is initiated by third-party application through user library and carries operation type; if the operation type is read operation, enabling the file system to allow third-party application to directly access persistent memory space of device through user library; and if the operation type is not read operation, enabling the file system to allow third-party application to access persistent memory space of device through user library and kernel thread, where kernel thread operates in kernel mode. In this way, the present invention can achieve both high performance and data security of persistent memory, and provide technical support for scalability in multi-core scenario.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.