Commit-ID: 33dbdbf02538e8f088f83a89de68436da590ce76
Gitweb: https://git.kernel.org/tip/33dbdbf02538e8f088f83a89de68436da590ce76
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 3 Jul 2018 17:22:34 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 30 Aug 2018 16:02:56 -0700
rcu: Remove rsp parameter from rcu_dump_cpu_stacks()
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_dump_cpu_stacks().
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 09f05083f01d..3e252b80e0bf 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1270,13 +1270,13 @@ static void rcu_check_gp_kthread_starvation(void)
* that don't support NMI-based stack dumps. The NMI-triggered stack
* traces are more accurate because they are printed by the target CPU.
*/
-static void rcu_dump_cpu_stacks(struct rcu_state *rsp)
+static void rcu_dump_cpu_stacks(void)
{
int cpu;
unsigned long flags;
struct rcu_node *rnp;
- rcu_for_each_leaf_node(rsp, rnp) {
+ rcu_for_each_leaf_node(&rcu_state, rnp) {
raw_spin_lock_irqsave_rcu_node(rnp, flags);
for_each_leaf_node_possible_cpu(rnp, cpu)
if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu))
@@ -1355,7 +1355,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp, unsigned long gp_seq)
smp_processor_id(), (long)(jiffies - rsp->gp_start),
(long)rcu_seq_current(&rsp->gp_seq), totqlen);
if (ndetected) {
- rcu_dump_cpu_stacks(rsp);
+ rcu_dump_cpu_stacks();
/* Complain about tasks blocking the grace period. */
rcu_print_detail_task_stall(rsp);
@@ -1418,7 +1418,7 @@ static void print_cpu_stall(struct rcu_state *rsp)
rcu_check_gp_kthread_starvation();
- rcu_dump_cpu_stacks(rsp);
+ rcu_dump_cpu_stacks();
raw_spin_lock_irqsave_rcu_node(rnp, flags);
/* Rewrite if needed in case of slow consoles. */
|