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static void failed(void);
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static void failed(void);
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__u32 random(__u32 max)
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__u32 random(__u32 max)
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{
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{
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    __u32 rc;
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    __u32 rc;
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    pri_t pri;
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- 
 
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    pri = cpu_priority_high();
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    spinlock_lock(&lock);  
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    spinlock_lock(&lock);  
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    rc = seed % max;
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    rc = seed % max;
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    seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;
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    seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;
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    spinlock_unlock(&lock);
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    spinlock_unlock(&lock);
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    cpu_priority_restore(pri);
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    return rc;
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    return rc;
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}
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}
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void writer(void *arg)
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void writer(void *arg)