Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   lvqian@nfschina.com
To:     cl@linux.co, penberg@kernel.org, rientjes@google.com, kim@lge.com,
        akpm@linux-foundation.org, vbabka@suse.cz,
        roman.gushchin@linux.dev, 42.hyeyoo@gmail.com
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        lvqian <lvqian@nfschina.com>
Subject: [PATCH] mm/slab.c: Delete the if judgment and return the result directly Remove the if judgment and return the result directly to reduce assembly  statements.
Date:   Wed, 11 Jan 2023 16:31:02 +0800
Message-Id: <20230111083102.111535-1-lvqian@nfschina.com>
MIME-Version: 1.0
Signed-off-by: lvqian <lvqian@nfschina.com>
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: lvqian <lvqian@nfschina.com>

diff --git a/mm/slab.c b/mm/slab.c
index 7a269db050ee..713265fe2dea 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1415,11 +1415,8 @@ static void kmem_rcu_free(struct rcu_head *head)
 #if DEBUG
 static bool is_debug_pagealloc_cache(struct kmem_cache *cachep)
 {
-	if (debug_pagealloc_enabled_static() && OFF_SLAB(cachep) &&
-		(cachep->size % PAGE_SIZE) == 0)
-		return true;
-
-	return false;
+	return debug_pagealloc_enabled_static() && OFF_SLAB(cachep) &&
+			((cachep->size % PAGE_SIZE) == 0);
 }
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
-- 
2.34.1