/**
* __sn_mmiowb - I/O space memory barrier
*
- * See include/asm-ia64/io.h and Documentation/DocBook/deviceiobook.tmpl
+ * See arch/ia64/include/asm/io.h and Documentation/DocBook/deviceiobook.tmpl
* for details.
*
* On SN2, we wait for the PIO_WRITE_STATUS SHub register to clear.