From mboxrd@z Thu Jan 1 00:00:00 1970 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BDADC433F5 for ; Mon, 9 May 2022 11:39:48 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 79B216B0071; Mon, 9 May 2022 07:39:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 74A6F6B0073; Mon, 9 May 2022 07:39:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 639866B0074; Mon, 9 May 2022 07:39:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 553946B0071 for ; Mon, 9 May 2022 07:39:47 -0400 (EDT) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 62DCBFC6 for ; Mon, 9 May 2022 11:39:40 +0000 (UTC) X-FDA: 79446009720.30.3C1DC56 Received: from mail.nfschina.com (mail.nfschina.com [124.16.136.209]) by imf08.hostedemail.com (Postfix) with ESMTP id A272D160086 for ; Mon, 9 May 2022 11:39:26 +0000 (UTC) Received: from localhost (unknown [127.0.0.1]) by mail.nfschina.com (Postfix) with ESMTP id 780EB1E80D70; Mon, 9 May 2022 19:34:27 +0800 (CST) X-Virus-Scanned: amavisd-new at test.com Received: from mail.nfschina.com ([127.0.0.1]) by localhost (mail.nfschina.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OL22kQYy3_7T; Mon, 9 May 2022 19:34:25 +0800 (CST) Received: from localhost.localdomain (unknown [219.141.250.2]) (Authenticated sender: kunyu@nfschina.com) by mail.nfschina.com (Postfix) with ESMTPA id E408D1E80D6B; Mon, 9 May 2022 19:34:24 +0800 (CST) From: Li kunyu To: peterz@infradead.org Cc: akpm@linux-foundation.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, kunyu@nfschina.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, luto@kernel.org, mingo@redhat.com, tglx@linutronix.de, x86@kernel.org Subject: Re: [PATCH] mm: Functions may simplify the use of return values Date: Mon, 9 May 2022 19:39:19 +0800 Message-Id: <20220509113920.125795-1-kunyu@nfschina.com> X-Mailer: git-send-email 2.18.2 In-Reply-To: <20220509071924.GF76023@worktop.programming.kicks-ass.net> References: <20220509071924.GF76023@worktop.programming.kicks-ass.net> X-Stat-Signature: zfpx6q58cb94mnfgytg9qptzjcog5844 Authentication-Results: imf08.hostedemail.com; dkim=none; spf=none (imf08.hostedemail.com: domain of kunyu@nfschina.com has no SPF policy when checking 124.16.136.209) smtp.mailfrom=kunyu@nfschina.com; dmarc=none X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: A272D160086 X-HE-Tag: 1652096366-441902 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000234, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: I estimate that this function should not add code in the next year or two. I consider and optimize this function in terms of code execution efficiency. There may be a better way.