From: Paul E. McKenney Date: Wed, 4 Jul 2018 00:22:34 +0000 (-0700) Subject: rcu: Remove rsp parameter from rcu_dump_cpu_stacks() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=33dbdbf02538e8f088f83a89de68436da590ce76;p=linux.git 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 --- diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 09f05083f01d1..3e252b80e0bfa 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. */