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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E8480C433E7 for ; Fri, 16 Oct 2020 16:20:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 46B7020848 for ; Fri, 16 Oct 2020 16:20:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="csJYYLIO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 46B7020848 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 A0470940011; Fri, 16 Oct 2020 12:20:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 96AFA940007; Fri, 16 Oct 2020 12:20:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7FFC1940011; Fri, 16 Oct 2020 12:20:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0166.hostedemail.com [216.40.44.166]) by kanga.kvack.org (Postfix) with ESMTP id 713D3940007 for ; Fri, 16 Oct 2020 12:20:29 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 69961181AEF1E for ; Fri, 16 Oct 2020 16:20:28 +0000 (UTC) X-FDA: 77378301336.18.tray90_370ec712721e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin18.hostedemail.com (Postfix) with ESMTP id 4CEDB10263C33 for ; Fri, 16 Oct 2020 16:20:28 +0000 (UTC) X-HE-Tag: tray90_370ec712721e X-Filterd-Recvd-Size: 2760 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Fri, 16 Oct 2020 16:20:27 +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=qnANyeE8BGUfs9EI0mAgvyYgGmWNNC+tzF64JAGclAM=; b=csJYYLIOVEwkliWcozQ7ogs4sh QSuac3y4vHb9JfYTBZAhW7/NBRvNtRrIY8Emvd7BBAfCIzPkhlmKFPqPMTVyo5g5qLVvhUIgxZiec D5WZBiSDHiml2zCO6YmlZ8CkegmEQKw53mkR2Yfmk6x0M2ivvIXql5O5CeUB8OFrq+OFa5UAeklIW 34ys1wfwJ++GzNVkHMSmBh5LkvNZrhgtE5N6cp5D5IDfNf+EPxxBdY+cuWzUxbAgOCuav4u4oRqLZ NAEuf/Pui96KlNHIrYE51mNLygl92xYSXZh019zNmgflaOuei7W2UHTfup3ga3AJssqgjUdgyLzsF kMdBjuPQ==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTSDq-0004uD-RY; Fri, 16 Oct 2020 16:04:51 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, Richard Weinberger Subject: [PATCH v3 16/18] ubifs: Tell the VFS that readpage was synchronous Date: Fri, 16 Oct 2020 17:04:41 +0100 Message-Id: <20201016160443.18685-17-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201016160443.18685-1-willy@infradead.org> References: <20201016160443.18685-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: The ubifs readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Richard Weinberger --- fs/ubifs/file.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index b77d1637bbbc..82633509c45e 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -772,7 +772,6 @@ static int ubifs_do_bulk_read(struct ubifs_info *c, s= truct bu_info *bu, if (err) goto out_warn; =20 - unlock_page(page1); ret =3D 1; =20 isize =3D i_size_read(inode); @@ -892,11 +891,16 @@ static int ubifs_bulk_read(struct page *page) =20 static int ubifs_readpage(struct file *file, struct page *page) { - if (ubifs_bulk_read(page)) - return 0; - do_readpage(page); - unlock_page(page); - return 0; + int err; + + err =3D ubifs_bulk_read(page); + if (err =3D=3D 0) + err =3D do_readpage(page); + if (err < 0) { + unlock_page(page); + return err; + } + return AOP_UPDATED_PAGE; } =20 static int do_writepage(struct page *page, int len) --=20 2.28.0