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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2016-01-28 20:30:06 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2016-03-31 13:34:06 -0700
commitbea2de44ae647698dc848a671fdee6e53c192423 (patch)
treeafca2086f2942e48274e366bc3857d7e22b81642 /kernel/rcu/tree_plugin.h
parente087816db9423fdc49302d3cd7ec01e487477a71 (diff)
downloadlinux-sh-bea2de44ae647698dc848a671fdee6e53c192423.tar.gz
rcu: Add funnel-locking tracing for expedited grace periods
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
-rw-r--r--kernel/rcu/tree_plugin.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index a2ac2628ef8e..cd2dae43ff48 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -767,6 +767,9 @@ void synchronize_rcu_expedited(void)
/* Clean up and exit. */
rcu_exp_gp_seq_end(rsp);
mutex_unlock(&rnp_unlock->exp_funnel_mutex);
+ trace_rcu_exp_funnel_lock(rsp->name, rnp_unlock->level,
+ rnp_unlock->grplo, rnp_unlock->grphi,
+ TPS("rel"));
}
EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);