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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,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 705ACC32792 for ; Thu, 3 Oct 2019 17:16:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3A9BD2133F for ; Thu, 3 Oct 2019 17:16:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570122989; bh=AlqdGvjphg9QU6fP6GDlnpCK51kTfGnfIkvABbczF4g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RPefId+HKkd8nuIx2Zlw26c8EXHwfj1yhXyWvXmC7rDIiYAT7a3eGQPoXYeIh+uT9 0jz11tAyhd7nuFaFXVIkG60Jgrf1inDmhzlzaSg3ahEG05JdYIVa15GEzblS3CkWc6 EHuqMtzy44g7iBLDulrTJxx35FHCrq/tSBVHO5U0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390711AbfJCQYT (ORCPT ); Thu, 3 Oct 2019 12:24:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:53830 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389000AbfJCQYQ (ORCPT ); Thu, 3 Oct 2019 12:24:16 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 59F0820867; Thu, 3 Oct 2019 16:24:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570119855; bh=AlqdGvjphg9QU6fP6GDlnpCK51kTfGnfIkvABbczF4g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sJOz6kC6R6sG/R5Ly9Z7LnTiGraZUmi6a3OHCWLUxtJUy2dTZvx8qkef+5q8UPoCz z3oUcOk2Jbzu48Ym0ae8FdrmZGAgUw2zImD85zZzycpPCfJBzsYMFe2dJw+qEyu859 HRKmaTov0CNyat07rOxoYPpR1FUz/Ka+rzyyJn/U= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Theodore Tso Subject: [PATCH 4.19 202/211] ext4: fix punch hole for inline_data file systems Date: Thu, 3 Oct 2019 17:54:28 +0200 Message-Id: <20191003154529.895188720@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191003154447.010950442@linuxfoundation.org> References: <20191003154447.010950442@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Theodore Ts'o commit c1e8220bd316d8ae8e524df39534b8a412a45d5e upstream. If a program attempts to punch a hole on an inline data file, we need to convert it to a normal file first. This was detected using ext4/032 using the adv configuration. Simple reproducer: mke2fs -Fq -t ext4 -O inline_data /dev/vdc mount /vdc echo "" > /vdc/testfile xfs_io -c 'truncate 33554432' /vdc/testfile xfs_io -c 'fpunch 0 1048576' /vdc/testfile umount /vdc e2fsck -fy /dev/vdc Cc: stable@vger.kernel.org Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/inode.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4265,6 +4265,15 @@ int ext4_punch_hole(struct inode *inode, trace_ext4_punch_hole(inode, offset, length, 0); + ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA); + if (ext4_has_inline_data(inode)) { + down_write(&EXT4_I(inode)->i_mmap_sem); + ret = ext4_convert_inline_data(inode); + up_write(&EXT4_I(inode)->i_mmap_sem); + if (ret) + return ret; + } + /* * Write out all dirty pages to avoid race conditions * Then release them.