Commit a3e81621 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Boqun Feng
Browse files

rcu: Split rcu_report_exp_cpu_mult() mask parameter and use for tracing 



This commit renames the rcu_report_exp_cpu_mult() function from "mask"
to "mask_in" and introduced a "mask" local variable to better support
upcoming event-tracing additions.

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarBoqun Feng <boqun.feng@gmail.com>
parent 2014c95a

kernel/rcu/tree_exp.h

+4 −2
Original line number Diff line number Diff line
@@ -230,17 +230,19 @@ static void __maybe_unused rcu_report_exp_rnp(struct rcu_node *rnp, bool wake) 
 * specified leaf rcu_node structure, which is acquired by the caller.

 */

static void rcu_report_exp_cpu_mult(struct rcu_node *rnp, unsigned long flags,

				    unsigned long mask, bool wake)

				    unsigned long mask_in, bool wake)

				    __releases(rnp->lock)

{

	int cpu;

	unsigned long mask;

	struct rcu_data *rdp;



	raw_lockdep_assert_held_rcu_node(rnp);

	if (!(rnp->expmask & mask)) {

	if (!(rnp->expmask & mask_in)) {

		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);

		return;

	}

	mask = mask_in & rnp->expmask;

	WRITE_ONCE(rnp->expmask, rnp->expmask & ~mask);

	for_each_leaf_node_cpu_mask(rnp, cpu, mask) {

		rdp = per_cpu_ptr(&rcu_data, cpu);