This patch enables these functions to be wrapped and can disable/enable this with CONFIG_DEBUG_FS. Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>