kernel: __rcu annotations

This adds annotations for RCU operations in core kernel components

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

diff --cc include/linux/fdtable.h
Simple merge

diff --cc include/linux/fs.h
Simple merge

diff --cc include/linux/genhd.h
Simple merge

diff --cc include/linux/init_task.h
Simple merge

diff --cc include/linux/iocontext.h
Simple merge

diff --cc include/linux/mm_types.h
Simple merge