[PATCH tip/core/rcu 20/52] rcu: Remove rsp parameter from note_gp_changes()

From: Paul E. McKenney
Date: Wed Aug 29 2018 - 18:43:26 EST


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
note_gp_changes().

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.c | 6 +++---
kernel/rcu/tree_plugin.h | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 4dd9d68af702..752cd23860ed 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1800,7 +1800,7 @@ static bool __note_gp_changes(struct rcu_node *rnp, struct rcu_data *rdp)
return ret;
}

-static void note_gp_changes(struct rcu_state *rsp, struct rcu_data *rdp)
+static void note_gp_changes(struct rcu_data *rdp)
{
unsigned long flags;
bool needwake;
@@ -2374,7 +2374,7 @@ static void
rcu_check_quiescent_state(struct rcu_state *rsp, struct rcu_data *rdp)
{
/* Check for grace-period ends and beginnings. */
- note_gp_changes(rsp, rdp);
+ note_gp_changes(rdp);

/*
* Does this CPU still need to do its part for current grace period?
@@ -2839,7 +2839,7 @@ static void __call_rcu_core(struct rcu_state *rsp, struct rcu_data *rdp,
rdp->qlen_last_fqs_check + qhimark)) {

/* Are we ignoring a completed grace period? */
- note_gp_changes(rsp, rdp);
+ note_gp_changes(rdp);

/* Start a new grace period if one not already started. */
if (!rcu_gp_in_progress()) {
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 0c59c3987c60..82f10a6bf266 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1586,7 +1586,7 @@ static bool __maybe_unused rcu_try_advance_all_cbs(void)
rcu_seq_current(&rnp->gp_seq)) ||
unlikely(READ_ONCE(rdp->gpwrap))) &&
rcu_segcblist_pend_cbs(&rdp->cblist))
- note_gp_changes(rsp, rdp);
+ note_gp_changes(rdp);

if (rcu_segcblist_ready_cbs(&rdp->cblist))
cbs_ready = true;
--
2.17.1