From nobody Mon Sep 15 17:43:53 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB104C5479D for ; Wed, 11 Jan 2023 08:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235801AbjAKIbd (ORCPT ); Wed, 11 Jan 2023 03:31:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230074AbjAKIb0 (ORCPT ); Wed, 11 Jan 2023 03:31:26 -0500 Received: from mail.nfschina.com (unknown [42.101.60.237]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE489265F for ; Wed, 11 Jan 2023 00:31:24 -0800 (PST) Received: from localhost (unknown [127.0.0.1]) by mail.nfschina.com (Postfix) with ESMTP id C08611A00A21; Wed, 11 Jan 2023 16:31:38 +0800 (CST) X-Virus-Scanned: amavisd-new at nfschina.com Received: from mail.nfschina.com ([127.0.0.1]) by localhost (localhost.localdomain [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mUdh5k6JJs8p; Wed, 11 Jan 2023 16:31:38 +0800 (CST) Received: from kernel.localdomain (unknown [219.141.250.2]) (Authenticated sender: lvqian@nfschina.com) by mail.nfschina.com (Postfix) with ESMTPA id BDA111A00A1C; Wed, 11 Jan 2023 16:31:37 +0800 (CST) 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 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> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Signed-off-by: lvqian Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: lvqian 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) =3D=3D 0) - return true; - - return false; + return debug_pagealloc_enabled_static() && OFF_SLAB(cachep) && + ((cachep->size % PAGE_SIZE) =3D=3D 0); } =20 #ifdef CONFIG_DEBUG_PAGEALLOC --=20 2.34.1