From patchwork Thu Jul 15 03:36:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Matthew Wilcox (Oracle)" X-Patchwork-Id: 12378731 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 63D46C1B08C for ; Thu, 15 Jul 2021 04:40:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id ECF2A61362 for ; Thu, 15 Jul 2021 04:40:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ECF2A61362 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 400118D0053; Thu, 15 Jul 2021 00:40:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3D6E68D004B; Thu, 15 Jul 2021 00:40:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 29EDE8D0053; Thu, 15 Jul 2021 00:40:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0004.hostedemail.com [216.40.44.4]) by kanga.kvack.org (Postfix) with ESMTP id 077158D004B for ; Thu, 15 Jul 2021 00:40:45 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id DB454184818D0 for ; Thu, 15 Jul 2021 04:40:44 +0000 (UTC) X-FDA: 78363571608.22.BC28147 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf12.hostedemail.com (Postfix) with ESMTP id 6683310000A5 for ; Thu, 15 Jul 2021 04:40:43 +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=MiJJVUeAUUm2avWMl+iruNtjhb6DvEHcG3LyC3D+Sk0=; b=NVyzW/MQ0CjOGOpiSX8Wi7vfed ToKC8zpoWsOkjxghObCfKRRFZxQ48dyPYnb1mMAKlA6dLhEejWb3k0zr2/F0zp5XZ3XcDfNmKyRrL 3atBQ3VS7ZoNS+17NAF+Nuy7uDeZoD/eM0WYeOmqA45oF1X2nZoqhJgWzbTc3v54GgaWFo9UAngsm J89yxgFNN/3CloQtWZ7uK7JDtSsJdnkgvrTl/1Jnt0u/cWIItC8lCGuRS7kYSIYkZSurb3Vm/zsIZ axUQ50uQSfzod8/8RbWmwrPCW3Hl4Mi0Hq07KJ2tWSI5Xwcw45hnWnk9i1RC1lXSwB5Tvfl7q/cwG 5X+hnt5Q==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1m3t8o-002y7f-F1; Thu, 15 Jul 2021 04:38:51 +0000 From: "Matthew Wilcox (Oracle)" To: linux-kernel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig Subject: [PATCH v14 077/138] mm/filemap: Add i_blocks_per_folio() Date: Thu, 15 Jul 2021 04:36:03 +0100 Message-Id: <20210715033704.692967-78-willy@infradead.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210715033704.692967-1-willy@infradead.org> References: <20210715033704.692967-1-willy@infradead.org> MIME-Version: 1.0 Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b="NVyzW/MQ"; spf=none (imf12.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: 5ad4js7gc4mttb4twajzkfh7tgxwcn3j X-Rspamd-Queue-Id: 6683310000A5 X-HE-Tag: 1626324043-311018 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: Reimplement i_blocks_per_page() as a wrapper around i_blocks_per_folio(). Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Christoph Hellwig Reviewed-by: David Howells Acked-by: Vlastimil Babka --- include/linux/pagemap.h | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 006de2d84d06..412db88b8d0c 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -1150,19 +1150,25 @@ static inline int page_mkwrite_check_truncate(struct page *page, } /** - * i_blocks_per_page - How many blocks fit in this page. + * i_blocks_per_folio - How many blocks fit in this folio. * @inode: The inode which contains the blocks. - * @page: The page (head page if the page is a THP). + * @folio: The folio. * - * If the block size is larger than the size of this page, return zero. + * If the block size is larger than the size of this folio, return zero. * - * Context: The caller should hold a refcount on the page to prevent it + * Context: The caller should hold a refcount on the folio to prevent it * from being split. - * Return: The number of filesystem blocks covered by this page. + * Return: The number of filesystem blocks covered by this folio. */ +static inline +unsigned int i_blocks_per_folio(struct inode *inode, struct folio *folio) +{ + return folio_size(folio) >> inode->i_blkbits; +} + static inline unsigned int i_blocks_per_page(struct inode *inode, struct page *page) { - return thp_size(page) >> inode->i_blkbits; + return i_blocks_per_folio(inode, page_folio(page)); } #endif /* _LINUX_PAGEMAP_H */