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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-07-03 17:22:34 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-08-30 16:03:09 -0700
commitb8bb1f63cf9ac43fc3015449843fe1f81c1b31a6 (patch)
tree59e90d8cf7d8569a795953c8c4055358ceebc913 /kernel/rcu
parent53b46303da84d611cd281f74a6538d47709b06b5 (diff)
downloadlinux-b8bb1f63cf9ac43fc3015449843fe1f81c1b31a6.tar.bz2
rcu: Remove rsp parameter from rcu_init_one() and friends
There now is only one rcu_state structure in a given build of the Linux kernel, so there is no need to pass it as a parameter to RCU's functions. This commit therefore removes the rsp parameter from rcu_init_one() and rcu_dump_rcu_node_tree(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tree.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 2a49a04a1d98..0b274530e8a8 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3708,7 +3708,7 @@ void rcu_scheduler_starting(void)
/*
* Helper function for rcu_init() that initializes one rcu_state structure.
*/
-static void __init rcu_init_one(struct rcu_state *rsp)
+static void __init rcu_init_one(void)
{
static const char * const buf[] = RCU_NODE_NAME_INIT;
static const char * const fqs[] = RCU_FQS_NAME_INIT;
@@ -3720,6 +3720,7 @@ static void __init rcu_init_one(struct rcu_state *rsp)
int i;
int j;
struct rcu_node *rnp;
+ struct rcu_state *rsp = &rcu_state;
BUILD_BUG_ON(RCU_NUM_LVLS > ARRAY_SIZE(buf)); /* Fix buf[] init! */
@@ -3870,14 +3871,14 @@ static void __init rcu_init_geometry(void)
* Dump out the structure of the rcu_node combining tree associated
* with the rcu_state structure referenced by rsp.
*/
-static void __init rcu_dump_rcu_node_tree(struct rcu_state *rsp)
+static void __init rcu_dump_rcu_node_tree(void)
{
int level = 0;
struct rcu_node *rnp;
pr_info("rcu_node tree layout dump\n");
pr_info(" ");
- rcu_for_each_node_breadth_first(rsp, rnp) {
+ rcu_for_each_node_breadth_first(&rcu_state, rnp) {
if (rnp->level != level) {
pr_cont("\n");
pr_info(" ");
@@ -3899,9 +3900,9 @@ void __init rcu_init(void)
rcu_bootup_announce();
rcu_init_geometry();
- rcu_init_one(&rcu_state);
+ rcu_init_one();
if (dump_tree)
- rcu_dump_rcu_node_tree(&rcu_state);
+ rcu_dump_rcu_node_tree();
open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
/*