On Thu, Aug 15, 2019 at 10:53:09PM -0400, Joel Fernandes (Google) wrote:
> This commit fixes the issue.
>
> Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
And I am squashing these into their respective commits with attribution.
Good eyes, thank you very much!!!
Thanx, Paul
> ---
> kernel/rcu/tree.c | 29 +++++++++++++++++------------
> 1 file changed, 17 insertions(+), 12 deletions(-)
>
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> index 0512de9ead20..322b1b57967c 100644
> --- a/kernel/rcu/tree.c
> +++ b/kernel/rcu/tree.c
> @@ -829,7 +829,7 @@ static __always_inline void rcu_nmi_enter_common(bool irq)
> !rdp->dynticks_nmi_nesting &&
> rdp->rcu_urgent_qs && !rdp->rcu_forced_tick) {
> rdp->rcu_forced_tick = true;
> - tick_dep_set_cpu(rdp->cpu, TICK_DEP_MASK_RCU);
> + tick_dep_set_cpu(rdp->cpu, TICK_DEP_BIT_RCU);
> }
> trace_rcu_dyntick(incby == 1 ? TPS("Endirq") : TPS("++="),
> rdp->dynticks_nmi_nesting,
> @@ -898,7 +898,7 @@ void rcu_irq_enter_irqson(void)
> void rcu_disable_tick_upon_qs(struct rcu_data *rdp)
> {
> if (tick_nohz_full_cpu(rdp->cpu) && rdp->rcu_forced_tick) {
> - tick_dep_clear_cpu(rdp->cpu, TICK_DEP_MASK_RCU);
> + tick_dep_clear_cpu(rdp->cpu, TICK_DEP_BIT_RCU);
> rdp->rcu_forced_tick = false;
> }
> }
> @@ -2123,8 +2123,9 @@ int rcutree_dead_cpu(unsigned int cpu)
> do_nocb_deferred_wakeup(per_cpu_ptr(&rcu_data, cpu));
>
> // Stop-machine done, so allow nohz_full to disable tick.
> - for_each_online_cpu(c)
> - tick_dep_clear_cpu(c, TICK_DEP_MASK_RCU);
> + for_each_online_cpu(c) {
> + tick_dep_clear_cpu(c, TICK_DEP_BIT_RCU);
> + }
> return 0;
> }
>
> @@ -2175,8 +2176,9 @@ static void rcu_do_batch(struct rcu_data *rdp)
> rcu_nocb_unlock_irqrestore(rdp, flags);
>
> /* Invoke callbacks. */
> - if (IS_ENABLED(CONFIG_NO_HZ_FULL))
> - tick_dep_set_task(current, TICK_DEP_MASK_RCU);
> + if (IS_ENABLED(CONFIG_NO_HZ_FULL)) {
> + tick_dep_set_task(current, TICK_DEP_BIT_RCU);
> + }
> rhp = rcu_cblist_dequeue(&rcl);
> for (; rhp; rhp = rcu_cblist_dequeue(&rcl)) {
> debug_rcu_head_unqueue(rhp);
> @@ -2243,8 +2245,9 @@ static void rcu_do_batch(struct rcu_data *rdp)
> /* Re-invoke RCU core processing if there are callbacks remaining. */
> if (!offloaded && rcu_segcblist_ready_cbs(&rdp->cblist))
> invoke_rcu_core();
> - if (IS_ENABLED(CONFIG_NO_HZ_FULL))
> - tick_dep_clear_task(current, TICK_DEP_MASK_RCU);
> + if (IS_ENABLED(CONFIG_NO_HZ_FULL)) {
> + tick_dep_clear_task(current, TICK_DEP_BIT_RCU);
> + }
> }
>
> /*
> @@ -3118,8 +3121,9 @@ int rcutree_online_cpu(unsigned int cpu)
> rcutree_affinity_setting(cpu, -1);
>
> // Stop-machine done, so allow nohz_full to disable tick.
> - for_each_online_cpu(c)
> - tick_dep_clear_cpu(c, TICK_DEP_MASK_RCU);
> + for_each_online_cpu(c) {
> + tick_dep_clear_cpu(c, TICK_DEP_BIT_RCU);
> + }
> return 0;
> }
>
> @@ -3143,8 +3147,9 @@ int rcutree_offline_cpu(unsigned int cpu)
> rcutree_affinity_setting(cpu, cpu);
>
> // nohz_full CPUs need the tick for stop-machine to work quickly
> - for_each_online_cpu(c)
> - tick_dep_set_cpu(c, TICK_DEP_MASK_RCU);
> + for_each_online_cpu(c) {
> + tick_dep_set_cpu(c, TICK_DEP_BIT_RCU);
> + }
> return 0;
> }
>
> --
> 2.23.0.rc1.153.gdeed80330f-goog
>
