tree 4a71e82b23ee84705cad15cd16490f8c5aace74f
parent baa1ae0c9f1c618bc60706efa75fef3508bcee58
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1302241643 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1304662619 -0700

rcu: prevent call_rcu() from diving into rcu core if irqs disabled

This commit marks a first step towards making call_rcu() have
real-time behavior.  If irqs are disabled, don't dive into the
RCU core.  Later on, this new early exit will wake up the
per-CPU kthread, which first must be modified to handle the
cases involving callback storms.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>