Message ID | 20201009143104.22673-8-willy@infradead.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=0lZN=DQ=kvack.org=owner-linux-mm@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3519A109B for <patchwork-linux-mm@patchwork.kernel.org>; Fri, 9 Oct 2020 14:32:21 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id DC4B3222C3 for <patchwork-linux-mm@patchwork.kernel.org>; Fri, 9 Oct 2020 14:31:17 +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="TBsddo3U" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC4B3222C3 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 673B56B0073; Fri, 9 Oct 2020 10:31:13 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 539C26B0074; 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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=U62SUaGW7wvOzK2xtP2u7DsjwRF7PHeB8dtYgkbpx0Q=; b=TBsddo3UB2Q94wLdBp5Hs/3UKX 764D6RJrVYMgAN8PhPRJOS0IFE3JV6hxkUA7hcj4HiKwOEdBT9fb80bNP5m7ekTqxeS5SxKW/3P2t EMnSoFsvky2Gp+uGTdymrU4Aw06pwIAJd2ar0blI1uWm7RcTcGboNnFsoWMszUZeGt1HOnmOLp6Tl LptcspG9vOt9WedEDXwRBoqe55+ot4qv1gcRZlaRwxQqHRZiV80zUd8KJCWXniAIWjKjbe7GkYcot dnXOFvET5LW65DcB48VKnKvAt3GRFL39s6e+2wDhI6ADfD69M/LoD1o7c1YKqiy1k2GI133VcfUR1 EjlngNuQ==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kQtQK-0005v5-0v; Fri, 09 Oct 2020 14:31:08 +0000 From: "Matthew Wilcox (Oracle)" <willy@infradead.org> To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, 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 <richard@nod.at>, linux-xfs@vger.kernel.org Subject: [PATCH v2 07/16] cramfs: Tell the VFS that readpage was synchronous Date: Fri, 9 Oct 2020 15:30:55 +0100 Message-Id: <20201009143104.22673-8-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: <linux-mm.kvack.org> |
Series |
Allow readpage to return a locked page
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expand
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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, struct page *page) flush_dcache_page(page); kunmap(page); SetPageUptodate(page); - unlock_page(page); - return 0; + return AOP_UPDATED_PAGE; err: kunmap(page); ClearPageUptodate(page); SetPageError(page); unlock_page(page); - return 0; + return -EIO; } static const struct address_space_operations cramfs_aops = {
The cramfs readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- fs/cramfs/inode.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)