Commit e95d68d2 authored Mar 15, 2017 by Paul E. McKenney

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>

parent efbe451d

kernel/rcu/rcu.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -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;

kernel/rcu/tree.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;