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rcu: Don't bother affinitying rcub kthreads away from offline CPUs
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Mon, 10 Nov 2014 16:07:08 +0000 (08:07 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 6 Jan 2015 19:02:50 +0000 (11:02 -0800)
When rcu_boost_kthread_setaffinity() sees that all CPUs for a given
rcu_node structure are now offline, it affinities the corresponding
RCU-boost ("rcub") kthread away from those CPUs.  This is pointless
because the kthread cannot run on those offline CPUs in any case.
This commit therefore removes this unneeded code.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/tree_plugin.h patch | blob | history

diff --cc kernel/rcu/tree_plugin.h
Simple merge
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