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Subject[PATCH tip/core/rcu 09/52] rcu: Remove rsp parameter from rcu_dump_cpu_stacks()
Date
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@linux.vnet.ibm.com>
---
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 0f419554122a..2741d987e745 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1269,13 +1269,13 @@ 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))
@@ -1354,7 +1354,7 @@ 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);
@@ -1417,7 +1417,7 @@ 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. */
--
2.17.1
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