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authorPaul E. McKenney <paul.mckenney@linaro.org>2012-10-11 16:18:09 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-11-08 11:50:13 -0800
commita30489c5228fba6f16b4c740a0292879ef13371e (patch)
tree2a28a2d6180f8315a8c1cee12cdb415a90b167f0 /kernel/rcutree.h
parent40694d6644d5cca28531707559466122eb212d8b (diff)
downloadlinux-a30489c5228fba6f16b4c740a0292879ef13371e.tar.bz2
rcu: Instrument synchronize_rcu_expedited() for debugfs tracing
This commit adds the counters to rcu_state and updates them in synchronize_rcu_expedited() to provide the data needed for debugfs tracing. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree.h')
-rw-r--r--kernel/rcutree.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 88f3d9d5971d..d274af357210 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -406,6 +406,15 @@ struct rcu_state {
atomic_long_t expedited_start; /* Starting ticket. */
atomic_long_t expedited_done; /* Done ticket. */
+ atomic_long_t expedited_wrap; /* # near-wrap incidents. */
+ atomic_long_t expedited_tryfail; /* # acquisition failures. */
+ atomic_long_t expedited_workdone1; /* # done by others #1. */
+ atomic_long_t expedited_workdone2; /* # done by others #2. */
+ atomic_long_t expedited_normal; /* # fallbacks to normal. */
+ atomic_long_t expedited_stoppedcpus; /* # successful stop_cpus. */
+ atomic_long_t expedited_done_tries; /* # tries to update _done. */
+ atomic_long_t expedited_done_lost; /* # times beaten to _done. */
+ atomic_long_t expedited_done_exit; /* # times exited _done loop. */
unsigned long jiffies_force_qs; /* Time at which to invoke */
/* force_quiescent_state(). */