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authorPaul E. McKenney <paul.mckenney@linaro.org>2012-12-03 08:16:28 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2013-03-26 08:04:48 -0700
commita488985851cf2facd2227bd982cc2c251df56268 (patch)
tree450d84d1fc01bd7997b651e47d2587fac5c6f085 /kernel/rcutree.h
parent09c7b890622d72b5e004cc249bbe610e8b928ddf (diff)
downloadlinux-a488985851cf2facd2227bd982cc2c251df56268.tar.bz2
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>
Diffstat (limited to 'kernel/rcutree.h')
-rw-r--r--kernel/rcutree.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index e51373c0b748..b6c2335efbdf 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -443,6 +443,7 @@ struct rcu_state {
unsigned long gp_max; /* Maximum GP duration in */
/* jiffies. */
char *name; /* Name of structure. */
+ char abbr; /* Abbreviated name. */
struct list_head flavors; /* List of RCU flavors. */
};