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=-12.6 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 D07C8C433E2 for ; Thu, 17 Sep 2020 15:11:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 74A0620795 for ; Thu, 17 Sep 2020 15:11:14 +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="a+K4f9p4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 74A0620795 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 6CC008E0005; Thu, 17 Sep 2020 11:11:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 67E608E0003; Thu, 17 Sep 2020 11:11:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 51B288E0005; Thu, 17 Sep 2020 11:11:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0227.hostedemail.com [216.40.44.227]) by kanga.kvack.org (Postfix) with ESMTP id 3315B8E0003 for ; Thu, 17 Sep 2020 11:11:00 -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 EDA0F181B9DAF for ; Thu, 17 Sep 2020 15:10:59 +0000 (UTC) X-FDA: 77272891038.18.show86_5e169d427123 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin18.hostedemail.com (Postfix) with ESMTP id B1B29100ED5BA for ; Thu, 17 Sep 2020 15:10:59 +0000 (UTC) X-HE-Tag: show86_5e169d427123 X-Filterd-Recvd-Size: 2701 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf45.hostedemail.com (Postfix) with ESMTP for ; Thu, 17 Sep 2020 15:10:59 +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=U62SUaGW7wvOzK2xtP2u7DsjwRF7PHeB8dtYgkbpx0Q=; b=a+K4f9p4caAQHaSAXoyEo9jeic z4rS6gVD2VceD3F5n0ghyfOLqAZbHLTwI99dJ+d8FGfT/jTf1vAo5dvv+QCapDyOhKA8JoU0dH7RD jl4ADHoGw3ZLskEsKuxMRE7ZcodmNtgjg/vR+S4wH8kUjdMw/iyvasBdyOEf/DOf/LzNvzfPhKY4c BDymXvXRBCnHXXX5DABtfF6xsFxkpO+KbwOq51fiobz400r64lHL5BJ2mnOPZvZ0GtPVfUU+QiaEX Qoc6ZzECgmEic+oThwXQSXLyd+mCy7ExsKIh2V7a4Z93AiINBSZZYIOO3eL3fpc8kC69q1XZ+87IC 7NyQ+p5Q==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvYj-0001Pp-Cs; Thu, 17 Sep 2020 15:10:53 +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 Subject: [PATCH 06/13] cramfs: Tell the VFS that readpage was synchronous Date: Thu, 17 Sep 2020 16:10:43 +0100 Message-Id: <20200917151050.5363-7-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200917151050.5363-1-willy@infradead.org> References: <20200917151050.5363-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: B1B29100ED5BA X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 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 cramfs readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) --- fs/cramfs/inode.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 912308600d39..7a642146c074 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -916,15 +916,14 @@ static int cramfs_readpage(struct file *file, struc= t page *page) flush_dcache_page(page); kunmap(page); SetPageUptodate(page); - unlock_page(page); - return 0; + return AOP_UPDATED_PAGE; =20 err: kunmap(page); ClearPageUptodate(page); SetPageError(page); unlock_page(page); - return 0; + return -EIO; } =20 static const struct address_space_operations cramfs_aops =3D { --=20 2.28.0