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 4849BC43457 for ; Fri, 9 Oct 2020 14:31:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E9F57222BA for ; Fri, 9 Oct 2020 14:31:18 +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="UkGU12VI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9F57222BA 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 451D86B0075; Fri, 9 Oct 2020 10:31:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3DDD26B007B; Fri, 9 Oct 2020 10:31:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0CB696B0078; Fri, 9 Oct 2020 10:31:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0071.hostedemail.com [216.40.44.71]) by kanga.kvack.org (Postfix) with ESMTP id C48706B0074 for ; Fri, 9 Oct 2020 10:31:13 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 58BC0362A for ; Fri, 9 Oct 2020 14:31:13 +0000 (UTC) X-FDA: 77352624426.29.laugh47_520492b271e1 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin29.hostedemail.com (Postfix) with ESMTP id 0A76218086CC0 for ; Fri, 9 Oct 2020 14:31:13 +0000 (UTC) X-HE-Tag: laugh47_520492b271e1 X-Filterd-Recvd-Size: 2596 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf16.hostedemail.com (Postfix) with ESMTP for ; Fri, 9 Oct 2020 14:31:12 +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=GW1YniPzUpda1PIsi2+AeQMOnKxd544xKFcJ+bcv5fM=; b=UkGU12VIIK99MHzzfEryJUWbjO A0nKktmS8L+pBXk27jD0P9xgYbyljS6tsG8fMjJJpMDG2kRA2N8MVd7r4ckabTScnK0YgmTTfTxJs FWD0S5kScgojp6mVIa5rSQ7tkL6wO/nzblA4AN5aaXMhmOo+V/mRvQ3bc3iTPjQQLC5rkw3ueoU9n T2v4r1/bCFm0FHkTqpfc7gLV+TXyWxNrhpFXAnWXyVvuzv8EY5bzSr1+wA8/3w0M2H2fL7oL7chak g7Z8Ez1HNYatDB1fkRf1mxdg6JbokrEYb5spx6bU41Om7N/n7D5GJbHbOJ1lTZ9qxmEpBDlnJ130m t/QP01eQ==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kQtQL-0005va-Lv; Fri, 09 Oct 2020 14:31:09 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, v9fs-developer@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, Richard Weinberger , linux-xfs@vger.kernel.org Subject: [PATCH v2 10/16] hostfs: Tell the VFS that readpage was synchronous Date: Fri, 9 Oct 2020 15:30:58 +0100 Message-Id: <20201009143104.22673-11-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201009143104.22673-1-willy@infradead.org> References: <20201009143104.22673-1-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 hostfs 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/hostfs/hostfs_kern.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index c070c0d8e3e9..c49221c09c4b 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -455,6 +455,8 @@ static int hostfs_readpage(struct file *file, struct = page *page) out: flush_dcache_page(page); kunmap(page); + if (!ret) + return AOP_UPDATED_PAGE; unlock_page(page); return ret; } --=20 2.28.0