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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 A9E29C433DB for ; Fri, 5 Feb 2021 08:46:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5A5E264E24 for ; Fri, 5 Feb 2021 08:46:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229590AbhBEIq2 (ORCPT ); Fri, 5 Feb 2021 03:46:28 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:12435 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229514AbhBEIq0 (ORCPT ); Fri, 5 Feb 2021 03:46:26 -0500 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DX89W3TXJzjJG1; Fri, 5 Feb 2021 16:44:31 +0800 (CST) Received: from huawei.com (10.175.104.175) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.498.0; Fri, 5 Feb 2021 16:45:27 +0800 From: Miaohe Lin To: CC: , , Subject: [PATCH] hugetlb_cgroup: use helper pages_per_huge_page() in hugetlb_cgroup Date: Fri, 5 Feb 2021 03:45:13 -0500 Message-ID: <20210205084513.29624-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.104.175] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We could use helper function pages_per_huge_page() to get the number of pages in a hstate to simplify the code slightly. Signed-off-by: Miaohe Lin --- mm/hugetlb_cgroup.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index 8909e075d441..86b5cc128584 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -113,7 +113,7 @@ static void hugetlb_cgroup_init(struct hugetlb_cgroup *h_cgroup, rsvd_parent); limit = round_down(PAGE_COUNTER_MAX, - 1 << huge_page_order(&hstates[idx])); + pages_per_huge_page(&hstates[idx])); ret = page_counter_set_max( hugetlb_cgroup_counter_from_cgroup(h_cgroup, idx), @@ -466,7 +466,7 @@ static int hugetlb_cgroup_read_u64_max(struct seq_file *seq, void *v) counter = &h_cg->hugepage[idx]; limit = round_down(PAGE_COUNTER_MAX, - 1 << huge_page_order(&hstates[idx])); + pages_per_huge_page(&hstates[idx])); switch (MEMFILE_ATTR(cft->private)) { case RES_RSVD_USAGE: @@ -513,7 +513,7 @@ static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of, return ret; idx = MEMFILE_IDX(of_cft(of)->private); - nr_pages = round_down(nr_pages, 1 << huge_page_order(&hstates[idx])); + nr_pages = round_down(nr_pages, pages_per_huge_page(&hstates[idx])); switch (MEMFILE_ATTR(of_cft(of)->private)) { case RES_RSVD_LIMIT: -- 2.19.1