linux-kernel - [PATCH tip/core/rcu 08/18] rcu: Move common code out of if-else block

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Date:   Tue, 26 Mar 2019 16:13:04 -0700
From:   "Paul E. McKenney" <paulmck@...ux.ibm.com>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        Akira Yokosawa <akiyks@...il.com>,
        "Paul E . McKenney" <paulmck@...ux.ibm.com>
Subject: [PATCH tip/core/rcu 08/18] rcu: Move common code out of if-else block

From: Akira Yokosawa <akiyks@...il.com>

As the result of recent addition of "rdp->core_needs_qs = false;" in
the "if" block, now both branches of the if-else have the same
assignment.

Factor it out and reduce line count.

Signed-off-by: Akira Yokosawa <akiyks@...il.com>
Cc: Joel Fernandes <joel@...lfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@...ux.ibm.com>
Acked-by: Joel Fernandes (Google) <joel@...lfernandes.org>
---
 kernel/rcu/tree.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 296131450414..5aefd36ac648 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2295,12 +2295,10 @@ rcu_report_qs_rdp(int cpu, struct rcu_data *rdp)
 		return;
 	}
 	mask = rdp->grpmask;
+	rdp->core_needs_qs = false;
 	if ((rnp->qsmask & mask) == 0) {
-		rdp->core_needs_qs = false;
 		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
 	} else {
-		rdp->core_needs_qs = false;
-
 		/*
 		 * This GP can't end until cpu checks in, so all of our
 		 * callbacks can be processed during the next GP.
-- 
2.17.1