Merge remote-tracking branch 'rcu/rcu/next'

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc init/main.c
Simple merge

diff --cc kernel/locking/lockdep.c
Simple merge

diff --cc lib/Kconfig.debug
Simple merge

diff --cc mm/slab_common.c
Simple merge

diff --cc mm/slub.c
Simple merge