Invention Grant
US08176489B2 Use of rollback RCU with read-side modifications to RCU-protected data structures
有权
使用对RCU保护的数据结构进行读取修改的回滚RCU
- Patent Title: Use of rollback RCU with read-side modifications to RCU-protected data structures
- Patent Title (中): 使用对RCU保护的数据结构进行读取修改的回滚RCU
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Application No.: US11009220Application Date: 2004-12-09
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Publication No.: US08176489B2Publication Date: 2012-05-08
- Inventor: Robert T. Bauer , Paul E. McKenney , Paul F. Russell
- Applicant: Robert T. Bauer , Paul E. McKenney , Paul F. Russell
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Lieberman & Brandsdorfer, LLC
- Main IPC: G06F9/46
- IPC: G06F9/46 ; G06F13/00
Abstract:
A method, apparatus and program storage device for performing a return/rollback process for RCU-protected data structures is provided that includes checking a user-level state of a preempted thread having a RCU read-side critical section, and executing the critical section of the thread after preemption when the user-level state of the thread indicates execution, otherwise returning to a point of preemption, resuming execution of the thread and disabling checking the user-level state when the user-level state of the thread indicates return.
Public/Granted literature
- US20060130061A1 Use of rollback RCU with read-side modifications to RCU-protected data structures Public/Granted day:2006-06-15
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