commita8a934e44fupstream. The git commitc63badebfe"s390: optimize control register update" broke the update for control register 0. After the update do the lctlg from the correct value. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>