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=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY,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 A73BEC43143 for ; Sun, 30 Sep 2018 01:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5591F20685 for ; Sun, 30 Sep 2018 01:40:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="eZ1Zi09/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5591F20685 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726816AbeI3ILR (ORCPT ); Sun, 30 Sep 2018 04:11:17 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:36460 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726149AbeI3ILQ (ORCPT ); Sun, 30 Sep 2018 04:11:16 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w8U1e4ti017607; Sun, 30 Sep 2018 01:40:27 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=yC/dmGpDpuGev14IZtCMwCwW2X6OX7SnayrApHP3vc4=; b=eZ1Zi09/jmnJxgqPCkwXkpxsiJJpsJk4gBJOvfjwXUViZfMP2A5v4/PZ3U+grPVC0GYN oIqR0RrSWmvs7NsRpRP/8mvZ6GIYOUr8JvzBIrdUfwkHp49psuLKPlfK7YZiiMKbx1le ue3c6rgJOkmK6wqJo4RyspAXHzvLZvmlSqEfg1e5weU26tFJNOP4IcHNsJrHCbTXsb45 HTO56u9zrc0qiTgeqf1xz4/KOaVUr4QUE2njIQnZQIDSre6aWzH3TIbTNOi9KutuDpkv r99g8U/Dv6ZaS4H79bnrNQVn7aLzsRR90h+bItvOep7+lkayuwDazlp7ectr1FLT2jnP Qg== Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2120.oracle.com with ESMTP id 2mt21qhy0x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 30 Sep 2018 01:40:27 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w8U1eL8H014248 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 30 Sep 2018 01:40:22 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w8U1eLMS017662; Sun, 30 Sep 2018 01:40:21 GMT Received: from tpasj.localdomain (/183.90.36.230) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 30 Sep 2018 01:40:21 +0000 From: Anand Jain To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org Subject: [PATCH v6] test unaligned punch hole at ENOSPC Date: Sun, 30 Sep 2018 09:39:52 +0800 Message-Id: <1538271592-4086-1-git-send-email-anand.jain@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1538146248-1759-1-git-send-email-anand.jain@oracle.com> References: <1538146248-1759-1-git-send-email-anand.jain@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9031 signatures=668707 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=3 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809300017 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Try to punch hole with unaligned size and offset when the FS is full. Mainly holes are punched at locations which are unaligned with the file extent boundaries when the FS is full by data. As the punching holes at unaligned location will involve truncating blocks instead of just dropping the extents, it shall involve reserving data and metadata space for delalloc and so data alloc fails as the FS is full. btrfs_punch_hole() btrfs_truncate_block() btrfs_check_data_free_space() <-- ENOSPC We don't fail punch hole if the holes are aligned with the file extent boundaries as it shall involve just dropping the related extents, without truncating data extent blocks. Signed-off-by: Anand Jain --- v5->v6: fix comments at two places in the test case drop -f when using xfs_io to punch hole sync after dd is dropped change log is slightly updated v4->v5: Update the change log Drop the directio option for xfs_io v3->v4: Add to the group punch v2->v3: Add _require_xfs_io_command "fpunch" Add more logs to $seqfull.full mount options and group profile info Add sync after dd upto ENOSPC Drop fallocate -p and use xfs_io punch to create holes Use a testfile instead of filler file so that easy to trace v1->v2: Use at least 256MB to test. This test case fails on btrfs as of now. tests/btrfs/172 | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/172.out | 2 ++ tests/btrfs/group | 1 + 3 files changed, 76 insertions(+) create mode 100755 tests/btrfs/172 create mode 100644 tests/btrfs/172.out diff --git a/tests/btrfs/172 b/tests/btrfs/172 new file mode 100755 index 000000000000..0dffb2dff40b --- /dev/null +++ b/tests/btrfs/172 @@ -0,0 +1,73 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2018 Oracle. All Rights Reserved. +# +# FS QA Test 172 +# +# Test if the unaligned (by size and offset) punch hole is successful when FS +# is at ENOSPC. +# +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +# Modify as appropriate. +_supported_fs btrfs +_supported_os Linux +_require_scratch +_require_xfs_io_command "fpunch" + +_scratch_mkfs_sized $((256 * 1024 *1024)) >> $seqres.full + +# max_inline ensures data is not inlined within metadata extents +_scratch_mount "-o max_inline=0,nodatacow" + +cat /proc/self/mounts | grep $SCRATCH_DEV >> $seqres.full +$BTRFS_UTIL_PROG filesystem df $SCRATCH_MNT >> $seqres.full + +extent_size=$(_scratch_btrfs_sectorsize) +unalign_by=512 +echo extent_size=$extent_size unalign_by=$unalign_by >> $seqres.full + +$XFS_IO_PROG -f -c "pwrite -S 0xab 0 $((extent_size * 10))" \ + $SCRATCH_MNT/testfile >> $seqres.full + +echo "Fill all space available for data and all unallocated space." >> $seqres.full +dd status=none if=/dev/zero of=$SCRATCH_MNT/filler bs=512 >> $seqres.full 2>&1 + +hole_offset=0 +hole_len=$unalign_by +$XFS_IO_PROG -c "fpunch $hole_offset $hole_len" $SCRATCH_MNT/testfile + +hole_offset=$(($extent_size + $unalign_by)) +hole_len=$(($extent_size - $unalign_by)) +$XFS_IO_PROG -c "fpunch $hole_offset $hole_len" $SCRATCH_MNT/testfile + +hole_offset=$(($extent_size * 2 + $unalign_by)) +hole_len=$(($extent_size * 5)) +$XFS_IO_PROG -c "fpunch $hole_offset $hole_len" $SCRATCH_MNT/testfile + +# success, all done +echo "Silence is golden" +status=0 +exit diff --git a/tests/btrfs/172.out b/tests/btrfs/172.out new file mode 100644 index 000000000000..ce2de3f0d107 --- /dev/null +++ b/tests/btrfs/172.out @@ -0,0 +1,2 @@ +QA output created by 172 +Silence is golden diff --git a/tests/btrfs/group b/tests/btrfs/group index feffc45b6564..45782565c3b7 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -174,3 +174,4 @@ 169 auto quick send 170 auto quick snapshot 171 auto quick qgroup +172 auto quick punch -- 1.8.3.1