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-rw-r--r--kernel/rcu/tree.h7
-rw-r--r--kernel/rcu/tree_plugin.h23
2 files changed, 10 insertions, 20 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 69bd6bec05bb..36a47c7bd882 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -43,13 +43,6 @@ struct rcu_dynticks {
atomic_t dynticks; /* Even value for idle, else odd. */
bool rcu_need_heavy_qs; /* GP old, need heavy quiescent state. */
bool rcu_urgent_qs; /* GP old need light quiescent state. */
-#ifdef CONFIG_RCU_FAST_NO_HZ
- bool all_lazy; /* Are all CPU's CBs lazy? */
- unsigned long nonlazy_posted;
- /* # times non-lazy CBs posted to CPU. */
- unsigned long nonlazy_posted_snap;
- /* idle-period nonlazy_posted snapshot. */
-#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
};
/* Communicate arguments to a workqueue handler. */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 45708164ddf9..b5aeb2fe4cfe 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1634,16 +1634,15 @@ static bool __maybe_unused rcu_try_advance_all_cbs(void)
int rcu_needs_cpu(u64 basemono, u64 *nextevt)
{
struct rcu_data *rdp = this_cpu_ptr(&rcu_data);
- struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
unsigned long dj;
lockdep_assert_irqs_disabled();
/* Snapshot to detect later posting of non-lazy callback. */
- rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
+ rdp->nonlazy_posted_snap = rdp->nonlazy_posted;
/* If no callbacks, RCU doesn't need the CPU. */
- if (!rcu_cpu_has_callbacks(&rdtp->all_lazy)) {
+ if (!rcu_cpu_has_callbacks(&rdp->all_lazy)) {
*nextevt = KTIME_MAX;
return 0;
}
@@ -1657,7 +1656,7 @@ int rcu_needs_cpu(u64 basemono, u64 *nextevt)
rdp->last_accelerate = jiffies;
/* Request timer delay depending on laziness, and round. */
- if (!rdtp->all_lazy) {
+ if (!rdp->all_lazy) {
dj = round_up(rcu_idle_gp_delay + jiffies,
rcu_idle_gp_delay) - jiffies;
} else {
@@ -1681,7 +1680,6 @@ static void rcu_prepare_for_idle(void)
{
bool needwake;
struct rcu_data *rdp = this_cpu_ptr(&rcu_data);
- struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
struct rcu_node *rnp;
int tne;
@@ -1705,10 +1703,10 @@ static void rcu_prepare_for_idle(void)
* callbacks, invoke RCU core for the side-effect of recalculating
* idle duration on re-entry to idle.
*/
- if (rdtp->all_lazy &&
- rdtp->nonlazy_posted != rdtp->nonlazy_posted_snap) {
- rdtp->all_lazy = false;
- rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
+ if (rdp->all_lazy &&
+ rdp->nonlazy_posted != rdp->nonlazy_posted_snap) {
+ rdp->all_lazy = false;
+ rdp->nonlazy_posted_snap = rdp->nonlazy_posted;
invoke_rcu_core();
return;
}
@@ -1754,7 +1752,7 @@ static void rcu_cleanup_after_idle(void)
*/
static void rcu_idle_count_callbacks_posted(void)
{
- __this_cpu_add(rcu_dynticks.nonlazy_posted, 1);
+ __this_cpu_add(rcu_data.nonlazy_posted, 1);
}
#endif /* #else #if !defined(CONFIG_RCU_FAST_NO_HZ) */
@@ -1764,13 +1762,12 @@ static void rcu_idle_count_callbacks_posted(void)
static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
{
struct rcu_data *rdp = &per_cpu(rcu_data, cpu);
- struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
- unsigned long nlpd = rdtp->nonlazy_posted - rdtp->nonlazy_posted_snap;
+ unsigned long nlpd = rdp->nonlazy_posted - rdp->nonlazy_posted_snap;
sprintf(cp, "last_accelerate: %04lx/%04lx, nonlazy_posted: %ld, %c%c",
rdp->last_accelerate & 0xffff, jiffies & 0xffff,
ulong2long(nlpd),
- rdtp->all_lazy ? 'L' : '.',
+ rdp->all_lazy ? 'L' : '.',
rdp->tick_nohz_enabled_snap ? '.' : 'D');
}