linux-kernel - [PATCH] memory tier: remove unneeded !IS_ENABLED(CONFIG

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Date:   Sat, 10 Jun 2023 11:41:14 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH] memory tier: remove unneeded !IS_ENABLED(CONFIG_MIGRATION) check

establish_demotion_targets() is defined while CONFIG_MIGRATION is
enabled. There's no need to check it again.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/memory-tiers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c
index dd04f0ce5277..a516e303e304 100644
--- a/mm/memory-tiers.c
+++ b/mm/memory-tiers.c
@@ -366,7 +366,7 @@ static void establish_demotion_targets(void)
 
 	lockdep_assert_held_once(&memory_tier_lock);
 
-	if (!node_demotion || !IS_ENABLED(CONFIG_MIGRATION))
+	if (!node_demotion)
 		return;
 
 	disable_all_demotion_targets();
-- 
2.27.0