linux-kernel - [PATCH tip/core/rcu 7/8] rcu: Inline trivial wrapper function rcu_start_gp_per

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Date:	Mon, 20 May 2013 07:38:14 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, edumazet@...gle.com, darren@...art.com,
	fweisbec@...il.com, sbw@....edu,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 7/8] rcu: Inline trivial wrapper function rcu_start_gp_per_cpu()

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>

Given the changes that introduce note_gp_change(), rcu_start_gp_per_cpu()
is now a trivial wrapper function with only one caller.  This commit
therefore inlines it into its sole call site.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
---
 kernel/rcutree.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 60ff232..14fa927 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1308,18 +1308,6 @@ static void note_gp_changes(struct rcu_state *rsp, struct rcu_data *rdp)
 }
 
 /*
- * Do per-CPU grace-period initialization for running CPU.  The caller
- * must hold the lock of the leaf rcu_node structure corresponding to
- * this CPU.
- */
-static void
-rcu_start_gp_per_cpu(struct rcu_state *rsp, struct rcu_node *rnp, struct rcu_data *rdp)
-{
-	/* Set state so that this CPU will detect the next quiescent state. */
-	__note_gp_changes(rsp, rnp, rdp);
-}
-
-/*
  * Initialize a new grace period.
  */
 static int rcu_gp_init(struct rcu_state *rsp)
@@ -1367,7 +1355,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
 		WARN_ON_ONCE(rnp->completed != rsp->completed);
 		ACCESS_ONCE(rnp->completed) = rsp->completed;
 		if (rnp == rdp->mynode)
-			rcu_start_gp_per_cpu(rsp, rnp, rdp);
+			__note_gp_changes(rsp, rnp, rdp);
 		rcu_preempt_boost_start_gp(rnp);
 		trace_rcu_grace_period_init(rsp->name, rnp->gpnum,
 					    rnp->level, rnp->grplo,
-- 
1.8.1.5

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