Invention Grant
US08706706B2 Fast path for grace-period detection for read-copy update system
失效
用于读取复制更新系统的宽限期检测的快速路径
- Patent Title: Fast path for grace-period detection for read-copy update system
- Patent Title (中): 用于读取复制更新系统的宽限期检测的快速路径
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Application No.: US11854840Application Date: 2007-09-13
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Publication No.: US08706706B2Publication Date: 2014-04-22
- Inventor: Paul E. McKenney
- Applicant: Paul E. McKenney
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Walter W. Duft
- Main IPC: G06F17/00
- IPC: G06F17/00 ; G06F17/30 ; G06F7/00 ; G06F9/52
Abstract:
A technique for implementing fast path grace period detection for deferring the destruction of a shared data element until pre-existing references to the data element are removed. A check is made, without using locks to exclude other updaters, for the presence of readers that are accessing the shared data elements. Grace period detection is terminated to initiate deferred destruction of the data element if there are no readers accessing the shared data element. If there are readers accessing the shared data element, a lock is implemented and another check is made for the presence of the readers.
Public/Granted literature
- US20090077080A1 FAST PATH FOR GRACE-PERIOD DETECTION FOR READ-COPY UPDATE SYSTEM Public/Granted day:2009-03-19
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