tree f0f36a0a5b6ea4ffd1a43e0c7bb5e90803076746
parent fe15d706cfc1cb321dbe2329b04b5ca185edff60
author Paul E. McKenney <paul.mckenney@linaro.org> 1325803479 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1329843804 -0800

rcu: Add diagnostic for misaligned rcu_head structures

The push for energy efficiency will require that RCU tag rcu_head
structures to indicate whether or not their invocation is time critical.
This tagging is best carried out in the bottom bits of the ->next
pointers in the rcu_head structures.  This tagging requires that the
rcu_head structures be properly aligned, so this commit adds the required
diagnostics.

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