From nobody Tue Dec 16 23:59:10 2025 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 B781DC4332F for ; Fri, 10 Nov 2023 03:33:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345828AbjKJDeA (ORCPT ); Thu, 9 Nov 2023 22:34:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37702 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229629AbjKJDdx (ORCPT ); Thu, 9 Nov 2023 22:33:53 -0500 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F0324686 for ; Thu, 9 Nov 2023 19:33:50 -0800 (PST) Received: from dggpemm100001.china.huawei.com (unknown [172.30.72.54]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4SRPV436p6z1P8F9; Fri, 10 Nov 2023 11:30:36 +0800 (CST) Received: from localhost.localdomain (10.175.112.125) by dggpemm100001.china.huawei.com (7.185.36.93) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Fri, 10 Nov 2023 11:33:48 +0800 From: Kefeng Wang To: Andrew Morton CC: , , Matthew Wilcox , David Hildenbrand , Gregory Price , Kefeng Wang Subject: [PATCH v2 2/7] fs/proc/page: use a folio in stable_page_flags() Date: Fri, 10 Nov 2023 11:33:19 +0800 Message-ID: <20231110033324.2455523-3-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20231110033324.2455523-1-wangkefeng.wang@huawei.com> References: <20231110033324.2455523-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm100001.china.huawei.com (7.185.36.93) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Replace nine compound_head() calls with one page_folio(). Signed-off-by: Kefeng Wang --- fs/proc/page.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/fs/proc/page.c b/fs/proc/page.c index 466efb0dadf7..dcef02471f91 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -109,6 +109,7 @@ static inline u64 kpf_copy_bit(u64 kflags, int ubit, in= t kbit) =20 u64 stable_page_flags(struct page *page) { + struct folio *folio; u64 k; u64 u; =20 @@ -119,6 +120,7 @@ u64 stable_page_flags(struct page *page) if (!page) return 1 << KPF_NOPAGE; =20 + folio =3D page_folio(page); k =3D page->flags; u =3D 0; =20 @@ -128,11 +130,11 @@ u64 stable_page_flags(struct page *page) * Note that page->_mapcount is overloaded in SLAB, so the * simple test in page_mapped() is not enough. */ - if (!PageSlab(page) && page_mapped(page)) + if (!folio_test_slab(folio) && folio_mapped(folio)) u |=3D 1 << KPF_MMAP; - if (PageAnon(page)) + if (folio_test_anon(folio)) u |=3D 1 << KPF_ANON; - if (PageKsm(page)) + if (folio_test_ksm(folio)) u |=3D 1 << KPF_KSM; =20 /* @@ -152,11 +154,9 @@ u64 stable_page_flags(struct page *page) * to make sure a given page is a thp, not a non-huge compound page. */ else if (PageTransCompound(page)) { - struct page *head =3D compound_head(page); - - if (PageLRU(head) || PageAnon(head)) + if (folio_test_lru(folio) || folio_test_anon(folio)) u |=3D 1 << KPF_THP; - else if (is_huge_zero_page(head)) { + else if (is_huge_zero_page(&folio->page)) { u |=3D 1 << KPF_ZERO_PAGE; u |=3D 1 << KPF_THP; } @@ -170,7 +170,7 @@ u64 stable_page_flags(struct page *page) */ if (PageBuddy(page)) u |=3D 1 << KPF_BUDDY; - else if (page_count(page) =3D=3D 0 && is_free_buddy_page(page)) + else if (folio_ref_count(folio) =3D=3D 0 && is_free_buddy_page(page)) u |=3D 1 << KPF_BUDDY; =20 if (PageOffline(page)) @@ -178,7 +178,7 @@ u64 stable_page_flags(struct page *page) if (PageTable(page)) u |=3D 1 << KPF_PGTABLE; =20 - if (page_is_idle(page)) + if (folio_test_idle(folio)) u |=3D 1 << KPF_IDLE; =20 u |=3D kpf_copy_bit(k, KPF_LOCKED, PG_locked); @@ -194,7 +194,7 @@ u64 stable_page_flags(struct page *page) u |=3D kpf_copy_bit(k, KPF_ACTIVE, PG_active); u |=3D kpf_copy_bit(k, KPF_RECLAIM, PG_reclaim); =20 - if (PageSwapCache(page)) + if (folio_test_swapcache(folio)) u |=3D 1 << KPF_SWAPCACHE; u |=3D kpf_copy_bit(k, KPF_SWAPBACKED, PG_swapbacked); =20 --=20 2.27.0