From patchwork Thu Jul 15 19:59:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 12380883 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 A4420C636C9 for ; Thu, 15 Jul 2021 20:07:54 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 42821613C9 for ; Thu, 15 Jul 2021 20:07:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 42821613C9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 9BFB88D00F9; Thu, 15 Jul 2021 16:07:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 96FB78D00EC; Thu, 15 Jul 2021 16:07:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 838258D00F9; Thu, 15 Jul 2021 16:07:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0171.hostedemail.com [216.40.44.171]) by kanga.kvack.org (Postfix) with ESMTP id 61FAB8D00EC for ; Thu, 15 Jul 2021 16:07:54 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 395B68248047 for ; Thu, 15 Jul 2021 20:07:53 +0000 (UTC) X-FDA: 78365908026.09.0E4119C Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf01.hostedemail.com (Postfix) with ESMTP id C50B150101A1 for ; Thu, 15 Jul 2021 20:07:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=7wUoKfBZfariJ0vsqhKDjrMepYyjGa6tL5Bdrvqggxg=; b=JqRwFiWv3Vj3U4m7czsJgt0sEm +GyarAaZZupk4t0Z6QnS5ovMryyGdhKmjkC4ztTDZ1R98Zq1eiPc7S/rhX8jn2XGj1ETGPuRsa0ai bI8MY5+7xDvF0JGV4r0STQTL89Yxb+rFUwsoVideG1nQu4Q4pYKFN9KiTxDvEJhseYkLEFo9fZOda CnzZ61fRrX2YGLDaVEpY4SIoX26g6zbSJCFyDndEKhrjCk08MhizHCvZ784CWpBnkzg81UNtPmNlm bdcBaVyc9DIXQ8KeE3lTigaNmuPTzMEPuVBr+le2TIC5l0nmCQj6bSHREH9/Jq8aRCIM3p65kssUj ex+mALtg==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1m47cf-003mZN-Py; Thu, 15 Jul 2021 20:06:31 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH v14 05/39] mm: Add arch_make_folio_accessible() Date: Thu, 15 Jul 2021 20:59:56 +0100 Message-Id: <20210715200030.899216-6-willy@infradead.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210715200030.899216-1-willy@infradead.org> References: <20210715200030.899216-1-willy@infradead.org> MIME-Version: 1.0 Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=JqRwFiWv; spf=none (imf01.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none X-Rspamd-Server: rspam05 X-Stat-Signature: tqeqxbkorcy7fhcfzgqjqpy8hjzz7tuk X-Rspamd-Queue-Id: C50B150101A1 X-HE-Tag: 1626379672-633172 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: As a default implementation, call arch_make_page_accessible n times. If an architecture can do better, it can override this. Also move the default implementation of arch_make_page_accessible() from gfp.h to mm.h. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/gfp.h | 6 ------ include/linux/mm.h | 21 +++++++++++++++++++++ 2 files changed, 21 insertions(+), 6 deletions(-) diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 55b2ec1f965a..dc5ff40608ce 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -520,12 +520,6 @@ static inline void arch_free_page(struct page *page, int order) { } #ifndef HAVE_ARCH_ALLOC_PAGE static inline void arch_alloc_page(struct page *page, int order) { } #endif -#ifndef HAVE_ARCH_MAKE_PAGE_ACCESSIBLE -static inline int arch_make_page_accessible(struct page *page) -{ - return 0; -} -#endif struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid, nodemask_t *nodemask); diff --git a/include/linux/mm.h b/include/linux/mm.h index 89daae93aa9b..deb0f5efaa65 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1732,6 +1732,27 @@ static inline size_t folio_size(struct folio *folio) return PAGE_SIZE << folio_order(folio); } +#ifndef HAVE_ARCH_MAKE_PAGE_ACCESSIBLE +static inline int arch_make_page_accessible(struct page *page) +{ + return 0; +} +#endif + +#ifndef HAVE_ARCH_MAKE_FOLIO_ACCESSIBLE +static inline int arch_make_folio_accessible(struct folio *folio) +{ + int ret, i; + for (i = 0; i < folio_nr_pages(folio); i++) { + ret = arch_make_page_accessible(folio_page(folio, i)); + if (ret) + break; + } + + return ret; +} +#endif + /* * Some inline functions in vmstat.h depend on page_zone() */