[PATCH RFC tip/core/rcu 0/2] NOCB kthread economization patches

From: Paul E. McKenney
Date: Mon Jul 14 2014 - 06:10:07 EST


This series provides a couple of patches that reduce the number of rcuo
kthreads in cases where nr_cpu_ids is larger than the actual number of
online CPUs.

1. Preparation patch that rationalizes RCU's creation of early-boot

2. Instead of creation rcuo kthreads for each possible CPU, create
them only for those CPUs that have come online at least once
since boot.

Thanx, Paul


b/kernel/rcu/tree.c | 8 ++-
b/kernel/rcu/tree.h | 5 +-
b/kernel/rcu/tree_plugin.h | 105 ++++++++++++++++++++++++++++++++++++---------
3 files changed, 95 insertions(+), 23 deletions(-)

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