From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed, 4 Jul 2018 00:22:34 +0000 (-0700)
Subject: rcu: Remove rsp parameter from note_gp_changes()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=15cabdffbbf629f2588612f092bdb37dfa16cc79;p=linux.git

rcu: Remove rsp parameter from note_gp_changes()

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@linux.vnet.ibm.com>
---

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 3e1ec264a653f..9189f7c70df5f 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1801,7 +1801,7 @@ 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;
@@ -2375,7 +2375,7 @@ 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?
@@ -2840,7 +2840,7 @@ 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 0c59c3987c60c..82f10a6bf266e 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;