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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-04-01 09:57:01 -0700
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-08-13 14:32:39 -0700
commitf7c9a9b664fb32a127e8e9a987b52023b92c3a0b (patch)
tree48d1f0294e3544f792b79345f1da50ad6c554892 /kernel/rcu/tree_plugin.h
parent0bdc33daef96a54f9e5799d84f2fbc05d9e5cae3 (diff)
rcu/nocb: Rename and document no-CB CB kthread sleep trace event
The nocb_cb_wait() function traces a "FollowerSleep" trace_rcu_nocb_wake() event, which never was documented and is now misleading. This commit therefore changes "FollowerSleep" to "CBSleep", documents this, and updates the documentation for "Sleep" as well. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
-rw-r--r--kernel/rcu/tree_plugin.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 0af36e98e70f..be065aacd63b 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1891,7 +1891,7 @@ static int rcu_nocb_gp_kthread(void *arg)
*/
static bool nocb_cb_wait(struct rcu_data *rdp)
{
- trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, TPS("FollowerSleep"));
+ trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, TPS("CBSleep"));
swait_event_interruptible_exclusive(rdp->nocb_cb_wq,
READ_ONCE(rdp->nocb_cb_head));
if (smp_load_acquire(&rdp->nocb_cb_head)) { /* VVV */