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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-01-23 22:29:37 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-03-12 15:19:37 -0700
commitc199068913c9c5cbb5498e289bb387703e087ea8 (patch)
treea2d6fa7368bd2b0ef71a600586db5a761d6e533d /kernel/rcu/tree.h
parent0aa04b055e71bd3b8040dd71a126126c66b6f01e (diff)
rcu: Eliminate ->onoff_mutex from rcu_node structure
Because that RCU grace-period initialization need no longer exclude CPU-hotplug operations, this commit eliminates the ->onoff_mutex and its uses. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree.h')
-rw-r--r--kernel/rcu/tree.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index aa42562ff5b2..a69d3dab2ec4 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -456,8 +456,6 @@ struct rcu_state {
long qlen; /* Total number of callbacks. */
/* End of fields guarded by orphan_lock. */
- struct mutex onoff_mutex; /* Coordinate hotplug & GPs. */
-
struct mutex barrier_mutex; /* Guards barrier fields. */
atomic_t barrier_cpu_count; /* # CPUs waiting on. */
struct completion barrier_completion; /* Wake at barrier end. */