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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 3B79DC48BE5 for ; Tue, 22 Jun 2021 12:21:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 200806023B for ; Tue, 22 Jun 2021 12:21:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231566AbhFVMXv (ORCPT ); Tue, 22 Jun 2021 08:23:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231434AbhFVMXu (ORCPT ); Tue, 22 Jun 2021 08:23:50 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6BD4C061574; Tue, 22 Jun 2021 05:21:34 -0700 (PDT) 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=X5ppZNyk8VY95fBxUhjQKajJf5q5N5EjgqtX70C3lzU=; b=Vu706WtRv5ZNdSZIs3v6TUeUm/ g6UmZTODxpgQpktZTVWzFj1OvSyonaPHO4sTC8Akrbla7d7hiRUcpsC8zbXr8AlDFirt4+D+URlYz ric6Wo1g467XN30OQXfi9gzetyfChVoFU1uJFaZxy31+2v0wJ86N28mGnjCCbbmjDaeXkEgwRu2T9 Dx/yz4aQy5ayFAjf3TGc2WAiKVlZevnKh97jGE+qE5uJ0+mhDwtrk9fXbp6M4efo1vYlOB5Xk7nh5 sYh9JKACQilrnIyxkn6UuPJw6x9kzTO8MpzLOYiKsaMhtLfDnw1+rqmnOEM/Q28NB6QzDDKZMFlyb cHLBIqfQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvfO3-00EGUp-R9; Tue, 22 Jun 2021 12:20:30 +0000 From: "Matthew Wilcox (Oracle)" To: akpm@linux-foundation.org Cc: "Matthew Wilcox (Oracle)" , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 05/46] mm: Add arch_make_folio_accessible() Date: Tue, 22 Jun 2021 13:15:10 +0100 Message-Id: <20210622121551.3398730-6-willy@infradead.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210622121551.3398730-1-willy@infradead.org> References: <20210622121551.3398730-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 11da8af06704..a503d928e684 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -508,12 +508,6 @@ 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 2c7b6ae1d3fc..5609095ffcac 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1719,6 +1719,27 @@ 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() */ -- 2.30.2