rcu: Distinguish "rcuo" kthreads by RCU flavor
authorPaul E. McKenney <paul.mckenney@linaro.org>
Mon, 3 Dec 2012 16:16:28 +0000 (08:16 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 26 Mar 2013 15:04:48 +0000 (08:04 -0700)
commita488985851cf2facd2227bd982cc2c251df56268
tree450d84d1fc01bd7997b651e47d2587fac5c6f085
parent09c7b890622d72b5e004cc249bbe610e8b928ddf
rcu: Distinguish "rcuo" kthreads by RCU flavor

Currently, the per-no-CBs-CPU kthreads are named "rcuo" followed by
the CPU number, for example, "rcuo".  This is problematic given that
there are either two or three RCU flavors, each of which gets a per-CPU
kthread with exactly the same name.  This commit therefore introduces
a one-letter abbreviation for each RCU flavor, namely 'b' for RCU-bh,
'p' for RCU-preempt, and 's' for RCU-sched.  This abbreviation is used
to distinguish the "rcuo" kthreads, for example, for CPU 0 we would have
"rcuob/0", "rcuop/0", and "rcuos/0".

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Documentation/kernel-parameters.txt
init/Kconfig
kernel/rcutree.c
kernel/rcutree.h
kernel/rcutree_plugin.h