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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-03-15 13:11:11 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-04-18 11:38:21 -0700
commite95d68d2127716c7d6fb144bb19ef48ce9f37393 (patch)
tree40f1660a6c2829acc711e4702022f20ca59b83d1 /kernel
parentefbe451d46af62369226e42b98dbcd95b6940a63 (diff)
downloadop-kernel-dev-e95d68d2127716c7d6fb144bb19ef48ce9f37393.zip
op-kernel-dev-e95d68d2127716c7d6fb144bb19ef48ce9f37393.tar.gz
srcu: Make num_rcu_lvl[] array be external
This commit makes the num_rcu_lvl[] array external so that SRCU can make use of it for initializing its upcoming srcu_node tree. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rcu/rcu.h1
-rw-r--r--kernel/rcu/tree.c2
2 files changed, 2 insertions, 1 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index 5c1798e..4303b88 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -195,6 +195,7 @@ extern void resched_cpu(int cpu);
#include <linux/rcu_node_tree.h>
extern int rcu_num_lvls;
+extern int num_rcu_lvl[];
extern int rcu_num_nodes;
static bool rcu_fanout_exact;
static int rcu_fanout_leaf;
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 9397a66..346948b 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -123,7 +123,7 @@ static int rcu_fanout_leaf = RCU_FANOUT_LEAF;
module_param(rcu_fanout_leaf, int, 0444);
int rcu_num_lvls __read_mostly = RCU_NUM_LVLS;
/* Number of rcu_nodes at specified level. */
-static int num_rcu_lvl[] = NUM_RCU_LVL_INIT;
+int num_rcu_lvl[] = NUM_RCU_LVL_INIT;
int rcu_num_nodes __read_mostly = NUM_RCU_NODES; /* Total # rcu_nodes in use. */
/* panic() on RCU Stall sysctl. */
int sysctl_panic_on_rcu_stall __read_mostly;
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