Message ID | 20200917151050.5363-7-willy@infradead.org |
---|---|
State | Not Applicable |
Headers | show
Return-Path: <linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2001:8b0:10b:1231::1; helo=merlin.infradead.org; envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=merlin.20170209 header.b=mT6uU3ky; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=casper.20170209 header.b=a+K4f9p4; dkim-atps=neutral Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4BsgQm01Wmz9sVM for <incoming@patchwork.ozlabs.org>; Fri, 18 Sep 2020 01:11:11 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=AFDfjLk5sQFS0WyTN19i7SbTCq6/cWfFXRiPgqbXob0=; b=mT6uU3ky3FPCrOFv1qORWP1vc b48Ubf3r5r/I8hDNkylhEwTE+XaMpbyuJBznowSEhIj+HemwOMFpzrI8y3BiyV2MOMU8hnWE0P4AJ 3auIE7eo9XpZKKb+GuTQ6xWLYmqSRaEf8+5f+D/GalzYABm/KZtimY3r3L6RVXtyoF/Rau/FfhE1V Kpm6k6fmODk+HaD+TQfEkLUiCS/5o0nPGLlsH0NuJEOr9q8yELXmKtBZe1vPUMxIZNcj9X60B13ul o7BGEDo0m7rXaQbqwdQSLq3qj6btmELYCdjNdpu1Pihweqj0VNk3kqHkevN2IZyJI4qacBvTa1M9T 0g2e/kBHg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvYy-00009w-FG; Thu, 17 Sep 2020 15:11:08 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvYk-0008UX-GS; Thu, 17 Sep 2020 15:10:54 +0000 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)" <willy@infradead.org> To: linux-fsdevel@vger.kernel.org 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-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <linux-um.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-um>, <mailto:linux-um-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-um/> List-Post: <mailto:linux-um@lists.infradead.org> List-Help: <mailto:linux-um-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-um>, <mailto:linux-um-request@lists.infradead.org?subject=subscribe> Cc: linux-cifs@vger.kernel.org, Richard Weinberger <richard@nod.at>, ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org, "Matthew Wilcox \(Oracle\)" <willy@infradead.org>, linux-mm@kvack.org, linux-mtd@lists.infradead.org, v9fs-developer@lists.sourceforge.net, ceph-devel@vger.kernel.org, linux-afs@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" <linux-um-bounces@lists.infradead.org> Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.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(-)