[PATCH] __user annotations in powerpc thread_info

	int		preempt_count;		/* 0 => preemptable,

						   <0 => BUG */

	struct restart_block restart_block;

	void *nvgprs_frame;

	void __user *nvgprs_frame;

	/* low level flags - has atomic operations done on it */

	unsigned long	flags ____cacheline_aligned_in_smp;

};