linux-kernel - [PATCH tip/core/rcu 16/88] rcu: Make sync_rcu_preempt_exp

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Message-Id: <1495749601-21574-16-git-send-email-paulmck@linux.vnet.ibm.com>
Date:   Thu, 25 May 2017 14:58:49 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     linux-kernel@...r.kernel.org
Cc:     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, bobby.prani@...il.com,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 16/88] rcu: Make sync_rcu_preempt_exp_done() return bool

The sync_rcu_preempt_exp_done() function returns a logical expression,
but its return type is nevertheless int.  This commit therefore changes
the return type to bool.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/rcu/tree_exp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index e513b4ab1197..dd21ca47e4b4 100644
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -147,7 +147,7 @@ static void __maybe_unused sync_exp_reset_tree(struct rcu_state *rsp)
  *
  * Caller must hold the rcu_state's exp_mutex.
  */
-static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
+static bool sync_rcu_preempt_exp_done(struct rcu_node *rnp)
 {
 	return rnp->exp_tasks == NULL &&
 	       READ_ONCE(rnp->expmask) == 0;
-- 
2.5.2