Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 33/52] rcu: Remove rsp parameter from rcu_init_one() and friends | Date | Wed, 29 Aug 2018 15:38:35 -0700 |
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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> --- kernel/rcu/tree.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 3591633efc33..6183c2889a9f 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -3707,7 +3707,7 @@ 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; @@ -3719,6 +3719,7 @@ 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! */ @@ -3869,14 +3870,14 @@ 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(" "); @@ -3898,9 +3899,9 @@ 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); /* -- 2.17.1
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