Techniques for performing metadata updates for cache consistency
US11663128B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2022 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Jan 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/466
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In at least one embodiment, processing can include acquiring a spinlock on a cached copy of a metadata (MD) page includes a field stored in two cache lines; updating a register to include an updated value of the field; determining whether a first portion of the updated value of the register is non-zero, wherein two portions of the updated value of the field as stored in the register correspond to the two cache lines; and responsive to determining that the first portion of the updated value of the register is non-zero, performing processing including: storing the first portion of the updated value of the field from the register in the first cache line; and subsequent to performing storing the first portion, storing the second portion of the updated value of the field as stored in the register in the second cache line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.