Adapting RCU for real-time operating system usage
US7287135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Sep 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/5016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method is provided to support immediate freeing of a designated element from memory. Following a process of designating an element for removal from a data-structure, conditional limitations are used to determine if immediate freeing of the element from memory is available. The conditional limitations include determining that the instruction originates from a uniprocessor computer system. In addition, the conditional limitations include a determination as to whether a call_rcu primitive or synchronize_kernel primitive may be omitted, or whether the computer implemented instruction is operating in an interrupt handler. If the conditional limitations are met, the designated element may be immediately freed from memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.