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typedef unsigned int    __kernel_dev_t;

typedef __kernel_dev_t          dev_t;

struct ustat {

};

typedef unsigned int kdev_t;

static inline kdev_t to_kdev_t(int dev)

{

        int major, minor;

        major = (dev >> 8);

        minor = (dev & 0xff);

        return ((( major ) << 22 ) | (  minor )) ;

}

struct super_block {

};

struct super_block * get_super (kdev_t dev);

int sys_ustat(dev_t dev, struct ustat * ubuf)

{

        struct super_block *s;

        s = get_super(to_kdev_t(dev));

}