linux内核中与进程相关的数据结构（基于linux3.16-rc4）

1.进程描述符

 struct task_struct {

 　　 volatile long state;

 　　.......

 　　 struct list_head tasks;

 　　.......

 　　 struct mm_struct *mm, *active_mm;

 　　.......

 　　 struct vm_area_struct *vmacache[VMACACHE_SIZE];

 　　......

  　　pid_t pid;
 　　 pid_t tgid;

 　　.......
    }

所在文件：include/linux/sched.h

2.线程描述符（current指向该描述符，并通过该描述符找到进程描述符）

  struct thread_info {
          struct task_struct      *task;                             /* main task structure */
          struct2. exec_domain  *exec_domain;              /* execution domain */
          __u32                        flags;                             /* low level flags */
          __u32                        status;                          /* thread synchronous flags     */
          __u32                        cpu;                             /* current CPU */
          int                              saved_preempt_count;
          mm_segment_t         addr_limit;
          struct restart_block   restart_block;
          void __user               *sysenter_return;
          unsigned int              sig_on_uaccess_error:;
          unsigned int              uaccess_err:;              /* uaccess failed */
    };

所在文件：arch/x86/include/asm/thread_info.h

3.进程的内核栈

   union thread_union {

 　　struct thread_info thread_info;

 　　unsigned long stack[THREAD_SIZE/sizeof(long)];

    }

所在文件：include/linux/sched.h

　　　　

4.进程的运行队列

 struct rt_prio_array {                            

 　　 DECLARE_BITMAP(bitmap, MAX_RT_PRIO+);

 　 　struct list_head queue[MAX_RT_PRIO];

 　}

所在文件：kernel/sched/sched.h