linux-kernel - [PATCH 16/23] lvm: device mapper: remove unnecessary unlikely()

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Message-Id: <20180830223429.30051-17-igor.stoppa@huawei.com>
Date:   Fri, 31 Aug 2018 01:34:22 +0300
From:   Igor Stoppa <igor.stoppa@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     igor.stoppa@...il.com, Igor Stoppa <igor.stoppa@...wei.com>,
        Joe Thornber <ejt@...hat.com>, Alasdair Kergon <agk@...hat.com>
Subject: [PATCH 16/23] lvm: device mapper: remove unnecessary unlikely()

WARN_ON() already contains an unlikely(), so it's not necessary to
wrap it into another.

Signed-off-by: Igor Stoppa <igor.stoppa@...wei.com>
Cc: Joe Thornber <ejt@...hat.com>
Cc: Alasdair Kergon <agk@...hat.com>
---
 drivers/md/dm-cache-policy-smq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-cache-policy-smq.c b/drivers/md/dm-cache-policy-smq.c
index 1b5b9ad9e492..b61aac00ff40 100644
--- a/drivers/md/dm-cache-policy-smq.c
+++ b/drivers/md/dm-cache-policy-smq.c
@@ -1200,7 +1200,7 @@ static void queue_demotion(struct smq_policy *mq)
 	struct policy_work work;
 	struct entry *e;
 
-	if (unlikely(WARN_ON_ONCE(!mq->migrations_allowed)))
+	if (WARN_ON_ONCE(!mq->migrations_allowed))
 		return;
 
 	e = q_peek(&mq->clean, mq->clean.nr_levels / 2, true);
-- 
2.17.1