表 1. 有用的 task_struct 字段

NAME        TYPE           DESCRIPTION
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uid        uid_t           User ID
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euid       uid_t           Effective user ID
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gid        gid_t           Group ID
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egid       gid_t           Effective group ID
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pid        pid_t           Process ID
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pgrp       pid_t           Process group ID
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p_opptr    task_struct*    Original parent task
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fs         fs_struct*      Filesystem information
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blocked    sigset_t        Set of blocked signals
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