From patchwork Tue Jan 12 07:40:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chandan Babu R X-Patchwork-Id: 12012587 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 BBE41C432C3 for ; Tue, 12 Jan 2021 07:42:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8413922DFA for ; Tue, 12 Jan 2021 07:42:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391993AbhALHmN (ORCPT ); Tue, 12 Jan 2021 02:42:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391988AbhALHmN (ORCPT ); Tue, 12 Jan 2021 02:42:13 -0500 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81ABCC0617A9; Mon, 11 Jan 2021 23:41:09 -0800 (PST) Received: by mail-pl1-x631.google.com with SMTP id d4so142848plh.5; Mon, 11 Jan 2021 23:41:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=i+DjE1xlEGRuZgveocTfgsgzOpdaBbBaWwg71VYt1cU=; b=XYA1shr41n4lYlHAk4YlodFDXvtHdMDJZGuYQ2FHYmeoYu3XtniQW9PaVzFF5lM67p IgjxTYJmWCJ9eI0VYHcL5jwKfANSSKjLEJ88mZrqJVKgfnQa7GwoCK6f7ihvdxujvY0z 11w8eX7MWwnycFZLAqLXzJwICSmdBqYFl+/SjqMNqU4DPFmoeFv8Gvw4G3q90Lat3HS6 iBSHv2NQCvVCJYEu6r5I9JgcJdHCT7gBDhiL5qcMqYmJOdFkO4zGr0Z7rE1p0wYBvzyj Yld8ZJVrrhUOAXp46G6BvpfFWbllab8tQ6Qshezgo2ydHNQcdIwwTD8nDy00kinIP2fk yhuQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=i+DjE1xlEGRuZgveocTfgsgzOpdaBbBaWwg71VYt1cU=; b=G4v8n8IALp0DoMjHQZCRhwIxIdYs9sN/TEqhQQaW2DUWRIV7y+z8t1mTWlMIk+Fgt0 3cWMVay33j1ETHreWOpuxEOHuEotVFZGg/FjeX8P+q0C5oQS9lXshYpYcWKJwzu23Mst pQrCOmmvnKPPJCeNmRxyUxqho+ykJ5dy04qVwMi0KYpete7d+BhdW9C/WWi5S9fg0i5F P1yjNQ/5WmYItHvQ0YKxclyYFT0L61uIFgqW21rrYnzaGhGGSMwiAVtAM4rsBtWesyJ5 hXIYVWSQsURXOpVcgCBgj1KaLDESzbqo/IN7KDoASiIYmbGrMY0gL8FRUUz/9A4QGrm3 bg/g== X-Gm-Message-State: AOAM5329V57PW6wOcoHgDpisySv4gyUhV0y/Duim8V/7Ydf/sND2iRxS yysdi5yiHLybaA8a7n49tSrdn2pe2g0= X-Google-Smtp-Source: ABdhPJyGmy0oab9b05z49ZGFDiG8zLz59AxJ4lQLknYlpzRXPoE+ZLwbLjaw0UyFdkiJWioXRmKrAg== X-Received: by 2002:a17:903:22c9:b029:dc:9b7f:bd13 with SMTP id y9-20020a17090322c9b02900dc9b7fbd13mr3891642plg.67.1610437268922; Mon, 11 Jan 2021 23:41:08 -0800 (PST) Received: from localhost.localdomain ([122.171.39.105]) by smtp.gmail.com with ESMTPSA id mj5sm1962340pjb.20.2021.01.11.23.41.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Jan 2021 23:41:08 -0800 (PST) From: Chandan Babu R To: fstests@vger.kernel.org Cc: Chandan Babu R , linux-xfs@vger.kernel.org, darrick.wong@oracle.com, djwong@kernel.org Subject: [PATCH V3 09/11] xfs: Check for extent overflow when remapping an extent Date: Tue, 12 Jan 2021 13:10:25 +0530 Message-Id: <20210112074027.10311-10-chandanrlinux@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210112074027.10311-1-chandanrlinux@gmail.com> References: <20210112074027.10311-1-chandanrlinux@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org This test verifies that XFS does not cause inode fork's extent count to overflow when remapping extents from one file's inode fork to another. Signed-off-by: Chandan Babu R --- tests/xfs/529 | 82 +++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/529.out | 8 +++++ tests/xfs/group | 1 + 3 files changed, 91 insertions(+) create mode 100755 tests/xfs/529 create mode 100644 tests/xfs/529.out diff --git a/tests/xfs/529 b/tests/xfs/529 new file mode 100755 index 00000000..f6a5922f --- /dev/null +++ b/tests/xfs/529 @@ -0,0 +1,82 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Chandan Babu R. All Rights Reserved. +# +# FS QA Test 529 +# +# Verify that XFS does not cause inode fork's extent count to overflow when +# remapping extents from one file's inode fork to another. +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 +. ./common/reflink +. ./common/inject + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +_supported_fs xfs +_require_scratch +_require_scratch_reflink +_require_xfs_debug +_require_xfs_io_command "reflink" +_require_xfs_io_error_injection "reduce_max_iextents" + +echo "* Reflink remap extents" + +echo "Format and mount fs" +_scratch_mkfs >> $seqres.full +_scratch_mount >> $seqres.full + +bsize=$(_get_block_size $SCRATCH_MNT) + +srcfile=${SCRATCH_MNT}/srcfile +dstfile=${SCRATCH_MNT}/dstfile + +nr_blks=15 + +echo "Create \$srcfile having an extent of length $nr_blks blocks" +$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ + -c fsync $srcfile >> $seqres.full + +echo "Create \$dstfile having an extent of length $nr_blks blocks" +$XFS_IO_PROG -f -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ + -c fsync $dstfile >> $seqres.full + +echo "Inject reduce_max_iextents error tag" +_scratch_inject_error reduce_max_iextents 1 + +echo "Reflink every other block from \$srcfile into \$dstfile" +for i in $(seq 1 2 $((nr_blks - 1))); do + $XFS_IO_PROG -f -c "reflink $srcfile $((i * bsize)) $((i * bsize)) $bsize" \ + $dstfile >> $seqres.full 2>&1 +done + +echo "Verify \$dstfile's extent count" +nextents=$($XFS_IO_PROG -c 'stat' $dstfile | grep nextents) +nextents=${nextents##fsxattr.nextents = } +if (( $nextents > 10 )); then + echo "Extent count overflow check failed: nextents = $nextents" + exit 1 +fi + +# success, all done +status=0 +exit diff --git a/tests/xfs/529.out b/tests/xfs/529.out new file mode 100644 index 00000000..687a8bd2 --- /dev/null +++ b/tests/xfs/529.out @@ -0,0 +1,8 @@ +QA output created by 529 +* Reflink remap extents +Format and mount fs +Create $srcfile having an extent of length 15 blocks +Create $dstfile having an extent of length 15 blocks +Inject reduce_max_iextents error tag +Reflink every other block from $srcfile into $dstfile +Verify $dstfile's extent count diff --git a/tests/xfs/group b/tests/xfs/group index ea892308..96e40901 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -526,6 +526,7 @@ 526 auto quick dir hardlink symlink 527 auto quick 528 auto quick reflink +529 auto quick reflink 758 auto quick rw attr realtime 759 auto quick rw realtime 760 auto quick rw collapse punch insert zero prealloc