Adapting RCU for real-time operating system usage

Details Adapting RCU for real-time operating system usage Adapting RCU for real-time operating system usage

2007-10-23

2007-10-23

Bragdon, Reginald (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

10953239

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.

REFERENCES:
patent: 5241673 (1993-08-01), Schelvis
patent: 5442758 (1995-08-01), Slingwine et al.
patent: 5608893 (1997-03-01), Slingwine et al.
patent: 5727209 (1998-03-01), Slingwine et al.
patent: 6219690 (2001-04-01), Slingwine et al.

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