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=-9.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 0AFB6ECDE46 for ; Thu, 25 Oct 2018 14:24:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA49D2075D for ; Thu, 25 Oct 2018 14:24:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="LZ8jIUkA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BA49D2075D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731093AbeJYWxc (ORCPT ); Thu, 25 Oct 2018 18:53:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:36122 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731078AbeJYWxc (ORCPT ); Thu, 25 Oct 2018 18:53:32 -0400 Received: from sasha-vm.mshome.net (unknown [167.98.65.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 760AA20870; Thu, 25 Oct 2018 14:20:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1540477234; bh=UoqF7p2JFFg5bigMVRulHFkIBKZyumDDZme1ro0lK7s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LZ8jIUkAUdBdX5mFbuiFmUbdKyzGVnuRyzuQBwJZRt1E8LiZwaCHBfJIhwId4Crn3 wQ/Jh4k0lxhY28h+HBDg+PtbqMfbAHTD27GC++ykf55mpR4/phM2kmEy5snb3i7aig kAbQCKsVJ2CnsspwJRwJShdlXWh9ODvhepv3WxCU= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Theodore Ts'o , Sasha Levin Subject: [PATCH AUTOSEL 3.18 66/98] ext4: fix an ext3 collapse range regression in xfstests Date: Thu, 25 Oct 2018 10:18:21 -0400 Message-Id: <20181025141853.214051-66-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181025141853.214051-1-sashal@kernel.org> References: <20181025141853.214051-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Theodore Ts'o [ Upstream commit b9576fc3624eb9fc88bec0d0ae883fd78be86239 ] The xfstests test suite assumes that an attempt to collapse range on the range (0, 1) will return EOPNOTSUPP if the file system does not support collapse range. Commit 280227a75b56: "ext4: move check under lock scope to close a race" broke this, and this caused xfstests to fail when run when testing file systems that did not have the extents feature enabled. Reported-by: Eric Whitney Signed-off-by: Theodore Ts'o Signed-off-by: Sasha Levin --- fs/ext4/extents.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 6dbfa92bf78a..1e51008e237f 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -5400,6 +5400,14 @@ int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len) loff_t new_size, ioffset; int ret; + /* + * We need to test this early because xfstests assumes that a + * collapse range of (0, 1) will return EOPNOTSUPP if the file + * system does not support collapse range. + */ + if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) + return -EOPNOTSUPP; + /* Collapse range works only on fs block size aligned offsets. */ if (offset & (EXT4_CLUSTER_SIZE(sb) - 1) || len & (EXT4_CLUSTER_SIZE(sb) - 1)) -- 2.17.1