Commit-ID: 511324e462a12ea8be1a7e5fc63a992134db80d7
Gitweb: http://git.kernel.org/tip/511324e462a12ea8be1a7e5fc63a992134db80d7
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Fri, 28 Apr 2017 17:04:09 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 8 Jun 2017 08:25:40 -0700
rcu: Use RCU_NOCB_WAKE rather than RCU_NOGP_WAKE
The RCU_NOGP_WAKE_NOT, RCU_NOGP_WAKE, and RCU_NOGP_WAKE_FORCE flags
are used to mediate wakeups for the no-CBs CPU kthreads. The "NOGP"
really doesn't make any sense, so this commit does s/NOGP/NOCB/.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.h | 6 +++---
kernel/rcu/tree_plugin.h | 8 ++++----
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 0fa7aee..ddfa34d 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -312,9 +312,9 @@ struct rcu_data {
};
/* Values for nocb_defer_wakeup field in struct rcu_data. */
-#define RCU_NOGP_WAKE_NOT 0
-#define RCU_NOGP_WAKE 1
-#define RCU_NOGP_WAKE_FORCE 2
+#define RCU_NOCB_WAKE_NOT 0
+#define RCU_NOCB_WAKE 1
+#define RCU_NOCB_WAKE_FORCE 2
#define RCU_JIFFIES_TILL_FORCE_QS (1 + (HZ > 250) + (HZ > 500))
/* For jiffies_till_first_fqs and */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index ee7cea7..0b10425 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1901,7 +1901,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
TPS("WakeEmpty"));
} else {
- WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOGP_WAKE);
+ WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOCB_WAKE);
/* Store ->nocb_defer_wakeup before ->rcu_urgent_qs. */
smp_store_release(this_cpu_ptr(&rcu_dynticks.rcu_urgent_qs), true);
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
@@ -1915,7 +1915,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
TPS("WakeOvf"));
} else {
- WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOGP_WAKE_FORCE);
+ WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOCB_WAKE_FORCE);
/* Store ->nocb_defer_wakeup before ->rcu_urgent_qs. */
smp_store_release(this_cpu_ptr(&rcu_dynticks.rcu_urgent_qs), true);
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
@@ -2242,8 +2242,8 @@ static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
if (!rcu_nocb_need_deferred_wakeup(rdp))
return;
ndw = READ_ONCE(rdp->nocb_defer_wakeup);
- WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOGP_WAKE_NOT);
- wake_nocb_leader(rdp, ndw == RCU_NOGP_WAKE_FORCE);
+ WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOCB_WAKE_NOT);
+ wake_nocb_leader(rdp, ndw == RCU_NOCB_WAKE_FORCE);
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("DeferredWake"));
}
--
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