tree d126a77da7d121dac2b731f24a16ae69c33a6602
parent 764f80798b958f74dbf0c6e76a8294d183dd9c16
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1499469408 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1502980198 -0700

doc: No longer allowed to use rcu_dereference on non-pointers

There are too many ways for the compiler to optimize (that is, break)
dependencies carried via integer values, so it is now permissible to
carry dependencies only via pointers.  This commit catches up some of
the documentation on this point.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>