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rcu: Remove rsp parameter from rcu_init_one() and friends

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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>
This commit is contained in:
Paul E. McKenney 2018-07-03 17:22:34 -07:00
parent 53b46303da
commit b8bb1f63cf
1 changed files with 6 additions and 5 deletions
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11
kernel/rcu/tree.c
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@ -3708,7 +3708,7 @@ void rcu_scheduler_starting(void)
/* /*
* Helper function for rcu_init() that initializes one rcu_state structure. * 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 buf[] = RCU_NODE_NAME_INIT;
static const char * const fqs[] = RCU_FQS_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 i;
int j; int j;
struct rcu_node *rnp; struct rcu_node *rnp;
struct rcu_state *rsp = &rcu_state;
BUILD_BUG_ON(RCU_NUM_LVLS > ARRAY_SIZE(buf)); /* Fix buf[] init! */ 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 * Dump out the structure of the rcu_node combining tree associated
* with the rcu_state structure referenced by rsp. * 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; int level = 0;
struct rcu_node *rnp; struct rcu_node *rnp;
pr_info("rcu_node tree layout dump\n"); pr_info("rcu_node tree layout dump\n");
pr_info(" "); pr_info(" ");
rcu_for_each_node_breadth_first(rsp, rnp) { rcu_for_each_node_breadth_first(&rcu_state, rnp) {
if (rnp->level != level) { if (rnp->level != level) {
pr_cont("\n"); pr_cont("\n");
pr_info(" "); pr_info(" ");
@ -3899,9 +3900,9 @@ void __init rcu_init(void)
rcu_bootup_announce(); rcu_bootup_announce();
rcu_init_geometry(); rcu_init_geometry();
rcu_init_one(&rcu_state); rcu_init_one();
if (dump_tree) if (dump_tree)
rcu_dump_rcu_node_tree(&rcu_state); rcu_dump_rcu_node_tree();
open_softirq(RCU_SOFTIRQ, rcu_process_callbacks); open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
/* /*