D36113.diff
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	diff --git a/sys/compat/linuxkpi/common/include/linux/uaccess.h b/sys/compat/linuxkpi/common/include/linux/uaccess.h
	--- a/sys/compat/linuxkpi/common/include/linux/uaccess.h
	+++ b/sys/compat/linuxkpi/common/include/linux/uaccess.h
	@@ -89,4 +89,29 @@
	return ((curthread->td_pflags & TDP_NOFAULTING) != 0);
	}

	+static inline int
	+__copy_to_user_inatomic(void __user to, const void from, unsigned n)
	+{
	+
	+ return (copyout_nofault(from, to, n) != 0 ? n : 0);
	+}
	+#define __copy_to_user_inatomic_nocache(to, from, n) \
	+ __copy_to_user_inatomic((to), (from), (n))
	+
	+static inline unsigned long
	+__copy_from_user_inatomic(void to, const void __user from,
	+ unsigned long n)
	+{
	+ /*
	+ * XXXKIB. Equivalent Linux function is implemented using
	+ * MOVNTI for aligned moves. For unaligned head and tail,
	+ * normal move is performed. As such, it is not incorrect, if
	+ * only somewhat slower, to use normal copyin. All uses
	+ * except shmem_pwrite_fast() have the destination mapped WC.
	+ */
	+ return ((copyin_nofault(__DECONST(void *, from), to, n) != 0 ? n : 0));
	+}
	+#define __copy_from_user_inatomic_nocache(to, from, n) \
	+ __copy_from_user_inatomic((to), (from), (n))
	+
	#endif /* _LINUXKPI_LINUX_UACCESS_H_ */