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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 16:02:56 -0700
commit33dbdbf02538e8f088f83a89de68436da590ce76 (patch)
treef0ad261e8adf69944e356fb23fdb377cf50b55a1 /kernel
parent8fd119b6522fea9ba5e68a3aa653f1490778fb25 (diff)
downloadlinux-33dbdbf02538e8f088f83a89de68436da590ce76.tar.gz
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@linux.vnet.ibm.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rcu/tree.c8
1 files 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. */