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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 473A7C43334 for ; Sat, 11 Jun 2022 08:48:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232182AbiFKIr7 (ORCPT ); Sat, 11 Jun 2022 04:47:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57282 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231663AbiFKIre (ORCPT ); Sat, 11 Jun 2022 04:47:34 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A37FD3193F for ; Sat, 11 Jun 2022 01:47:32 -0700 (PDT) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LKry96R2JzgYDL; Sat, 11 Jun 2022 16:45:37 +0800 (CST) Received: from huawei.com (10.175.124.27) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Sat, 11 Jun 2022 16:47:30 +0800 From: Miaohe Lin To: CC: , , , , , , , , , , , Subject: [PATCH 5/7] mm/khugepaged: use helper macro __ATTR_RW Date: Sat, 11 Jun 2022 16:47:29 +0800 Message-ID: <20220611084731.55155-6-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220611084731.55155-1-linmiaohe@huawei.com> References: <20220611084731.55155-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use helper macro __ATTR_RW to define the khugepaged attributes. Minor readability improvement. Signed-off-by: Miaohe Lin --- mm/khugepaged.c | 37 +++++++++++++++---------------------- 1 file changed, 15 insertions(+), 22 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 8e6fad7c7bd9..142e26e4bdbf 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -147,8 +147,7 @@ static ssize_t scan_sleep_millisecs_store(struct kobject *kobj, return count; } static struct kobj_attribute scan_sleep_millisecs_attr = - __ATTR(scan_sleep_millisecs, 0644, scan_sleep_millisecs_show, - scan_sleep_millisecs_store); + __ATTR_RW(scan_sleep_millisecs); static ssize_t alloc_sleep_millisecs_show(struct kobject *kobj, struct kobj_attribute *attr, @@ -175,8 +174,7 @@ static ssize_t alloc_sleep_millisecs_store(struct kobject *kobj, return count; } static struct kobj_attribute alloc_sleep_millisecs_attr = - __ATTR(alloc_sleep_millisecs, 0644, alloc_sleep_millisecs_show, - alloc_sleep_millisecs_store); + __ATTR_RW(alloc_sleep_millisecs); static ssize_t pages_to_scan_show(struct kobject *kobj, struct kobj_attribute *attr, @@ -200,8 +198,7 @@ static ssize_t pages_to_scan_store(struct kobject *kobj, return count; } static struct kobj_attribute pages_to_scan_attr = - __ATTR(pages_to_scan, 0644, pages_to_scan_show, - pages_to_scan_store); + __ATTR_RW(pages_to_scan); static ssize_t pages_collapsed_show(struct kobject *kobj, struct kobj_attribute *attr, @@ -221,13 +218,13 @@ static ssize_t full_scans_show(struct kobject *kobj, static struct kobj_attribute full_scans_attr = __ATTR_RO(full_scans); -static ssize_t khugepaged_defrag_show(struct kobject *kobj, +static ssize_t defrag_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { return single_hugepage_flag_show(kobj, attr, buf, TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG); } -static ssize_t khugepaged_defrag_store(struct kobject *kobj, +static ssize_t defrag_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { @@ -235,8 +232,7 @@ static ssize_t khugepaged_defrag_store(struct kobject *kobj, TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG); } static struct kobj_attribute khugepaged_defrag_attr = - __ATTR(defrag, 0644, khugepaged_defrag_show, - khugepaged_defrag_store); + __ATTR_RW(defrag); /* * max_ptes_none controls if khugepaged should collapse hugepages over @@ -246,13 +242,13 @@ static struct kobj_attribute khugepaged_defrag_attr = * runs. Increasing max_ptes_none will instead potentially reduce the * free memory in the system during the khugepaged scan. */ -static ssize_t khugepaged_max_ptes_none_show(struct kobject *kobj, +static ssize_t max_ptes_none_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { return sysfs_emit(buf, "%u\n", khugepaged_max_ptes_none); } -static ssize_t khugepaged_max_ptes_none_store(struct kobject *kobj, +static ssize_t max_ptes_none_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { @@ -268,17 +264,16 @@ static ssize_t khugepaged_max_ptes_none_store(struct kobject *kobj, return count; } static struct kobj_attribute khugepaged_max_ptes_none_attr = - __ATTR(max_ptes_none, 0644, khugepaged_max_ptes_none_show, - khugepaged_max_ptes_none_store); + __ATTR_RW(max_ptes_none); -static ssize_t khugepaged_max_ptes_swap_show(struct kobject *kobj, +static ssize_t max_ptes_swap_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { return sysfs_emit(buf, "%u\n", khugepaged_max_ptes_swap); } -static ssize_t khugepaged_max_ptes_swap_store(struct kobject *kobj, +static ssize_t max_ptes_swap_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { @@ -295,17 +290,16 @@ static ssize_t khugepaged_max_ptes_swap_store(struct kobject *kobj, } static struct kobj_attribute khugepaged_max_ptes_swap_attr = - __ATTR(max_ptes_swap, 0644, khugepaged_max_ptes_swap_show, - khugepaged_max_ptes_swap_store); + __ATTR_RW(max_ptes_swap); -static ssize_t khugepaged_max_ptes_shared_show(struct kobject *kobj, +static ssize_t max_ptes_shared_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { return sysfs_emit(buf, "%u\n", khugepaged_max_ptes_shared); } -static ssize_t khugepaged_max_ptes_shared_store(struct kobject *kobj, +static ssize_t max_ptes_shared_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { @@ -322,8 +316,7 @@ static ssize_t khugepaged_max_ptes_shared_store(struct kobject *kobj, } static struct kobj_attribute khugepaged_max_ptes_shared_attr = - __ATTR(max_ptes_shared, 0644, khugepaged_max_ptes_shared_show, - khugepaged_max_ptes_shared_store); + __ATTR_RW(max_ptes_shared); static struct attribute *khugepaged_attr[] = { &khugepaged_defrag_attr.attr, -- 2.23.0