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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 A9EE6C63697 for ; Sat, 14 Nov 2020 18:51:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 78E092225E for ; Sat, 14 Nov 2020 18:51:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726248AbgKNSuh (ORCPT ); Sat, 14 Nov 2020 13:50:37 -0500 Received: from smtprelay0162.hostedemail.com ([216.40.44.162]:57268 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726070AbgKNSug (ORCPT ); Sat, 14 Nov 2020 13:50:36 -0500 Received: from filter.hostedemail.com (clb03-v110.bra.tucows.net [216.40.38.60]) by smtprelay01.hostedemail.com (Postfix) with ESMTP id C2B31100E7B43; Sat, 14 Nov 2020 18:50:34 +0000 (UTC) X-Session-Marker: 6A6F6540706572636865732E636F6D X-HE-Tag: mint00_1a090f127319 X-Filterd-Recvd-Size: 4580 Received: from joe-laptop.perches.com (unknown [47.151.133.149]) (Authenticated sender: joe@perches.com) by omf14.hostedemail.com (Postfix) with ESMTPA; Sat, 14 Nov 2020 18:50:33 +0000 (UTC) From: Joe Perches To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH V2 2/5] mm: huge_memory: Convert remaining use of sprintf to sysfs_emit and neatening Date: Sat, 14 Nov 2020 10:50:23 -0800 Message-Id: <7df6be66bbd68e1a0bca9d35aca1341dbf94d2a7.1605376435.git.joe@perches.com> X-Mailer: git-send-email 2.26.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert the only use of sprintf with struct kobject * that the cocci script could not convert. Miscellanea: o Neaten the uses of a constant string with sysfs_emit to use a const char * to reduce overall object size Signed-off-by: Joe Perches --- mm/huge_memory.c | 52 +++++++++++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 21 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 2d0540964d0e..5cac8c47f68c 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -163,12 +163,17 @@ static struct shrinker huge_zero_page_shrinker = { static ssize_t enabled_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { + const char *output; + if (test_bit(TRANSPARENT_HUGEPAGE_FLAG, &transparent_hugepage_flags)) - return sysfs_emit(buf, "[always] madvise never\n"); - else if (test_bit(TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG, &transparent_hugepage_flags)) - return sysfs_emit(buf, "always [madvise] never\n"); + output = "[always] madvise never"; + else if (test_bit(TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG, + &transparent_hugepage_flags)) + output = "always [madvise] never"; else - return sysfs_emit(buf, "always madvise [never]\n"); + output = "always madvise [never]"; + + return sysfs_emit(buf, "%s\n", output); } static ssize_t enabled_store(struct kobject *kobj, @@ -200,11 +205,11 @@ static struct kobj_attribute enabled_attr = __ATTR(enabled, 0644, enabled_show, enabled_store); ssize_t single_hugepage_flag_show(struct kobject *kobj, - struct kobj_attribute *attr, char *buf, - enum transparent_hugepage_flag flag) + struct kobj_attribute *attr, char *buf, + enum transparent_hugepage_flag flag) { - return sprintf(buf, "%d\n", - !!test_bit(flag, &transparent_hugepage_flags)); + return sysfs_emit(buf, "%d\n", + !!test_bit(flag, &transparent_hugepage_flags)); } ssize_t single_hugepage_flag_store(struct kobject *kobj, @@ -232,19 +237,24 @@ ssize_t single_hugepage_flag_store(struct kobject *kobj, static ssize_t defrag_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_DIRECT_FLAG, &transparent_hugepage_flags)) - return sysfs_emit(buf, - "[always] defer defer+madvise madvise never\n"); - if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_FLAG, &transparent_hugepage_flags)) - return sysfs_emit(buf, - "always [defer] defer+madvise madvise never\n"); - if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_OR_MADV_FLAG, &transparent_hugepage_flags)) - return sysfs_emit(buf, - "always defer [defer+madvise] madvise never\n"); - if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG, &transparent_hugepage_flags)) - return sysfs_emit(buf, - "always defer defer+madvise [madvise] never\n"); - return sysfs_emit(buf, "always defer defer+madvise madvise [never]\n"); + const char *output; + + if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_DIRECT_FLAG, + &transparent_hugepage_flags)) + output = "[always] defer defer+madvise madvise never"; + else if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_FLAG, + &transparent_hugepage_flags)) + output = "always [defer] defer+madvise madvise never"; + else if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_OR_MADV_FLAG, + &transparent_hugepage_flags)) + output = "always defer [defer+madvise] madvise never"; + else if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG, + &transparent_hugepage_flags)) + output = "always defer defer+madvise [madvise] never"; + else + output = "always defer defer+madvise madvise [never]"; + + return sysfs_emit(buf, "%s\n", output); } static ssize_t defrag_store(struct kobject *kobj, -- 2.26.0