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1. 发明授权

US06189145B1 Concurrent patch to logical partition manager of a logically partitioned system 失效
标题翻译：逻辑分区系统的逻辑分区管理器并发补丁
公开(公告)号：US06189145B1
公开(公告)日：2001-02-13
申请号：US08864248
申请日：1997-05-28
申请人： Richard A. Bellin, Jr. , Jeffrey P. Kubala , Ira G. Siegel
发明人： Richard A. Bellin, Jr. , Jeffrey P. Kubala , Ira G. Siegel
IPC分类号： G06F9445
CPC分类号： G06F9/44521
摘要： A method of replacing a current version of a program module with a replacement version of the module concurrently with the execution of the program on a computer system. While execution of the program is suspended, each address reference in the program to an entry point within the current version of the module is replaced with an address reference to the corresponding entry point within the replacement version of the module. After the address references have been replaced and before execution is resumed, a patch initialization routine is invoked to perform initialization functions such as storage allocation, table initialization and feature detection that are performed before execution of the concurrently applied patch. Execution of the program is resumed when each address reference to the current module has been replaced with one to the replacement module and the patch initialization routine has been performed. A bit vector is used to ensure that each initialization function is performed only once per instantiation of the program being patched. An available storage value indicates the amount of initially allocated storage remaining available after performing an initialization function involving storage allocation.
摘要翻译：一种在计算机系统上与程序的执行同时替换模块的替代版本的当前版本的程序模块的方法。当程序的执行被暂停时，程序中的每个地址引用到模块的当前版本中的入口点被替换为模块的替换版本内的相应入口点的地址引用。在地址引用被替换并且在执行恢复之前，调用补丁初始化例程来执行在执行并发应用的补丁之前执行的诸如存储分配，表初始化和特征检测的初始化功能。当将当前模块的每个地址引用替换为替换模块并执行补丁初始化程序时，程序的执行恢复。使用位向量来确保每个初始化功能仅在被修补的程序的实例化时执行一次。可用存储值指示在执行涉及存储分配的初始化功能之后，剩余可用的初始分配的存储量。

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