From patchwork Fri Apr 30 05:55:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 12232355 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D8BBC43461 for ; Fri, 30 Apr 2021 05:55:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4D2C26145D for ; Fri, 30 Apr 2021 05:55:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D2C26145D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E3D0B6B008C; Fri, 30 Apr 2021 01:55:07 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DEB4C6B0096; Fri, 30 Apr 2021 01:55:07 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C3F426B00AB; Fri, 30 Apr 2021 01:55:07 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0114.hostedemail.com [216.40.44.114]) by kanga.kvack.org (Postfix) with ESMTP id A8A346B008C for ; Fri, 30 Apr 2021 01:55:07 -0400 (EDT) Received: from smtpin37.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 792C2180ACC20 for ; Fri, 30 Apr 2021 05:55:07 +0000 (UTC) X-FDA: 78087970254.37.ABE7D92 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf04.hostedemail.com (Postfix) with ESMTP id 0F60712E for ; Fri, 30 Apr 2021 05:55:02 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 37AE361459; Fri, 30 Apr 2021 05:55:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1619762106; bh=CbcmmSmdqwz82w0ROnKz4vnrSCAaNvDqRX5UPbO9Tsk=; h=Date:From:To:Subject:In-Reply-To:From; b=xEMjPiDfCYW7eCYKztEYdA3xzhq/fYIt5TYJdNMhKdTXmEnsYI5cCr51i5dhDuF/9 DCfGvmiJ3qxP2K46uX5nDJ4sSlEt1VMWIpgycutw/4HnAHCCRsBI8h9M1/zW9mtwLq Xj7o8qKFgQmMbNqmAR/bXdcX6G1+XbFwhYnH6WS4= Date: Thu, 29 Apr 2021 22:55:05 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, slyfox@gentoo.org, torvalds@linux-foundation.org, willy@infradead.org Subject: [patch 037/178] mm: page_owner: use kstrtobool() to parse bool option Message-ID: <20210430055505.q4cU9KC8y%akpm@linux-foundation.org> In-Reply-To: <20210429225251.02b6386d21b69255b4f6c163@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Stat-Signature: pe3qf3w7h581h1iyzf7oreer435ber7s X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 0F60712E Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=xEMjPiDf; spf=pass (imf04.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none Received-SPF: none (linux-foundation.org>: No applicable sender policy available) receiver=imf04; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1619762102-18828 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Sergei Trofimovich Subject: mm: page_owner: use kstrtobool() to parse bool option I tried to use page_owner=1 for a while noticed too late it had no effect as opposed to similar init_on_alloc=1 (these work). Let's make them consistent. The change decreses binary size slightly: text data bss dec hex filename 12408 321 17 12746 31ca mm/page_owner.o.before 12320 321 17 12658 3172 mm/page_owner.o.after Link: https://lkml.kernel.org/r/20210401210909.3532086-1-slyfox@gentoo.org Signed-off-by: Sergei Trofimovich Reviewed-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/page_owner.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) --- a/mm/page_owner.c~mm-page_owner-use-kstrtobool-to-parse-bool-option +++ a/mm/page_owner.c @@ -42,13 +42,7 @@ static void init_early_allocated_pages(v static int __init early_page_owner_param(char *buf) { - if (!buf) - return -EINVAL; - - if (strcmp(buf, "on") == 0) - page_owner_enabled = true; - - return 0; + return kstrtobool(buf, &page_owner_enabled); } early_param("page_owner", early_page_owner_param);