tree 22b1c691757577cb291430858def7d86d8449dfb
parent 5fecf3a1e1a0af61eb34eb6976ec9f59cca65d3f
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1414469487 -0700
committer Al Viro <viro@zeniv.linux.org.uk> 1414535117 -0400

rcu: Provide counterpart to rcu_dereference() for non-RCU situations

Although rcu_dereference() and friends can be used in situations where
object lifetimes are being managed by something other than RCU, the
resulting sparse and lockdep-RCU noise can be annoying.  This commit
therefore supplies a lockless_dereference(), which provides the
protection for dereferences without the RCU-related debugging noise.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>