From patchwork Wed Jul 6 08:59:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 12907607 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 7FE83CCA486 for ; Wed, 6 Jul 2022 08:59:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232181AbiGFI7d (ORCPT ); Wed, 6 Jul 2022 04:59:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231979AbiGFI7d (ORCPT ); Wed, 6 Jul 2022 04:59:33 -0400 Received: from out30-44.freemail.mail.aliyun.com (out30-44.freemail.mail.aliyun.com [115.124.30.44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2C4810571; Wed, 6 Jul 2022 01:59:31 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R721e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046051;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=33;SR=0;TI=SMTPD_---0VIXnCQL_1657097963; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0VIXnCQL_1657097963) by smtp.aliyun-inc.com; Wed, 06 Jul 2022 16:59:24 +0800 From: Baolin Wang To: akpm@linux-foundation.org Cc: rppt@linux.ibm.com, willy@infradead.org, will@kernel.org, aneesh.kumar@linux.ibm.com, npiggin@gmail.com, peterz@infradead.org, catalin.marinas@arm.com, chenhuacai@kernel.org, kernel@xen0n.name, tsbogend@alpha.franken.de, dave.hansen@linux.intel.com, luto@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, arnd@arndb.de, guoren@kernel.org, monstr@monstr.eu, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, baolin.wang@linux.alibaba.com, x86@kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-csky@vger.kernel.org, openrisc@lists.librecores.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] mm: Factor out the pagetable pages account into new helper function Date: Wed, 6 Jul 2022 16:59:15 +0800 Message-Id: X-Mailer: git-send-email 1.8.3.1 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Factor out the pagetable pages account and pagetable setting into new helper functions to avoid duplicated code. Meanwhile these helper functions also will be used to account pagetable pages which do not need split pagetable lock. Signed-off-by: Baolin Wang --- include/linux/mm.h | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index d084ce5..7894bc5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2352,20 +2352,30 @@ static inline void pgtable_init(void) pgtable_cache_init(); } +static inline void page_set_pgtable(struct page *page) +{ + __SetPageTable(page); + inc_lruvec_page_state(page, NR_PAGETABLE); +} + +static inline void page_clear_pgtable(struct page *page) +{ + __ClearPageTable(page); + dec_lruvec_page_state(page, NR_PAGETABLE); +} + static inline bool pgtable_pte_page_ctor(struct page *page) { if (!ptlock_init(page)) return false; - __SetPageTable(page); - inc_lruvec_page_state(page, NR_PAGETABLE); + page_set_pgtable(page); return true; } static inline void pgtable_pte_page_dtor(struct page *page) { ptlock_free(page); - __ClearPageTable(page); - dec_lruvec_page_state(page, NR_PAGETABLE); + page_clear_pgtable(page); } #define pte_offset_map_lock(mm, pmd, address, ptlp) \ @@ -2451,16 +2461,14 @@ static inline bool pgtable_pmd_page_ctor(struct page *page) { if (!pmd_ptlock_init(page)) return false; - __SetPageTable(page); - inc_lruvec_page_state(page, NR_PAGETABLE); + page_set_pgtable(page); return true; } static inline void pgtable_pmd_page_dtor(struct page *page) { pmd_ptlock_free(page); - __ClearPageTable(page); - dec_lruvec_page_state(page, NR_PAGETABLE); + page_clear_pgtable(page); } /*