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struct task_struct {
    volatile long state;   /* -1 unrunnable, 0 runnable, >0 stopped */
     void *stack;
     atomic_t usage;
     unsigned int flags;    /* per process flags, defined below */
     unsigned int ptrace;
 
     int lock_depth;        /* BKL lock depth */
     ……
     ……
}
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ÈçÉÏͼËùʾ£º½ø³ÌÄں˶ÑÕ»µ×²¿´æ·Å×Åstruct thread_struct.¸Ã½á¹¹ÖÐÓÐÒ»¸ö³ÉÔ±Ö¸Ïòµ±Ç°½ø³ÌµÄtask_struct.ÔÚÄÚºËÖÐÓÐÒ»¸ö»ñÈ¡µ±Ç°½ø³ÌµÄthread_struct µÄºê¡£ËüµÄ¶¨ÒåÈçÏ£º
#define GET_THREAD_INFO(reg)
     movl $THREAD, reg;
     andl %esp, reg
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#ifdef CONFIG_4KSTACKS
#define THREAD_SIZE            (4096)
#else
#define THREAD_SIZE         (8192)
#endif
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struct task_struct init_task = INIT_TASK(init_task);
#define INIT_TASK(tsk)
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Linux Kernel Threads in Device Drivers

 Purpose
This examples shows how to create and stop a kernel thread.
The driver is implemented as a loadable module. In the init_module() routine five kernel threads are created. This kernel threads sleep one second, wake up, print a message and fall asleep again. On unload of the module (cle ......

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    search site
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