From patchwork Wed Oct 23 08:16:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chao Yu X-Patchwork-Id: 13846676 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 72A0214B953 for ; Wed, 23 Oct 2024 08:16:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729671372; cv=none; b=gshXlnEI3+tGEx/ul7W/W0B8z/IVp3+3Mzt1MnYn3OsoF3755Eo8N59eLrQVNi7KLlBVobB/tdSuTWBU84pHoxLaMKhTxE9mpTHLMejBDipomrhfLYzSfQZsB2xMyu9cWrKs1PBIVBFaVt7JGb4QoBIAyLV79Ftj2BBaFEtY3Z4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729671372; c=relaxed/simple; bh=KH/gWcSQ5ANQNjmXmGKqkINjKdTgHSCalEu+VVxzM4U=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=QXEYxnDQiqPtxFTaDKsUolSvx2sR01EsFjj3pbLyX6qlfmo64ahl13faGiOMEeNtCUP5PytrvEAgj453RGnAZ4s3D5IS/KI2MCEHx0TBU2SdRXJ4hf4t2LvevsY2qkD1CK5b8LJewcFjKNcRTLAOYue6bT7xjkZR/nlp6DRXAF8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eJBPCmuf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eJBPCmuf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8BC91C4CEC6; Wed, 23 Oct 2024 08:16:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729671372; bh=KH/gWcSQ5ANQNjmXmGKqkINjKdTgHSCalEu+VVxzM4U=; h=From:To:Cc:Subject:Date:From; b=eJBPCmufUaeUA2pqPon5iP/uBjut/5s5logH6swRmeABCtLh+2XNyR0kmB+tTMK4B a2hij41IONX97f5t1YyI6A2/ajXMV5sNDZ/UVxkNmiU33IRBm/F+Sd6lhXSNx0b37R e51lTXe9zebFAkt1W6amt8GgQje95Ndbg4Zv0NLjg8W79pwbAbhXCwojYfuaokqnCX i/L5QUg152mBhdsgmjHXz0GSRvHR8IX+N96Xp2tWHwRGAaOZUr0QGae/lDYEXEUr5v dT/+5KyOAr0isPrsbfXtirFa1Z0gopD8u5iBTSthmCF8cY6SudLjL/O40m/wnYHTFj N20hTvUV2Wrqg== From: Chao Yu To: Zorro Lang Cc: fstests@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Chao Yu , Jaegeuk Kim Subject: [PATCH v2 1/2] f2fs/006: add testcase to check out-of-space case Date: Wed, 23 Oct 2024 16:16:01 +0800 Message-Id: <20241023081602.3806579-1-chao@kernel.org> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: fstests@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This is a regression test to check whether f2fs handles dirty data correctly when checkpoint is disabled, if lfs mode is on, it will trigger OPU for all overwritten data, this will cost free segments, so f2fs must account overwritten data as OPU data when calculating free space, otherwise, it may run out of free segments in f2fs' allocation function, resulting in panic. Cc: Jaegeuk Kim Signed-off-by: Chao Yu --- v2: - add _fixed_by_kernel_commit() - use _scratch_mkfs_sized() rather than formating size-specified loop device - code cleanup tests/f2fs/006 | 38 ++++++++++++++++++++++++++++++++++++++ tests/f2fs/006.out | 6 ++++++ 2 files changed, 44 insertions(+) create mode 100755 tests/f2fs/006 create mode 100644 tests/f2fs/006.out diff --git a/tests/f2fs/006 b/tests/f2fs/006 new file mode 100755 index 00000000..63d00018 --- /dev/null +++ b/tests/f2fs/006 @@ -0,0 +1,38 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2024 Oppo. All Rights Reserved. +# +# FS QA Test No. f2fs/006 +# +# This is a regression test to check whether f2fs handles dirty +# data correctly when checkpoint is disabled, if lfs mode is on, +# it will trigger OPU for all overwritten data, this will cost +# free segments, so f2fs must account overwritten data as OPU +# data when calculating free space, otherwise, it may run out +# of free segments in f2fs' allocation function, resulting in +# panic. +# +. ./common/preamble +_begin_fstest auto quick + +_fixed_by_kernel_commit xxxxxxxxxxxx \ + "f2fs: fix to account dirty data in __get_secs_required()" + +testfile=$SCRATCH_MNT/testfile + +_require_scratch +_scratch_mkfs_sized $((1024*1024*100)) >> $seqres.full + +# use mode=lfs to let f2fs always triggers OPU +_scratch_mount -o mode=lfs,checkpoint=disable:10%,noinline_dentry >> $seqres.full + +dd if=/dev/zero of=$testfile bs=1M count=50 2>/dev/null + +# it may run out of free space of f2fs and hang kernel +dd if=/dev/zero of=$testfile bs=1M count=50 conv=notrunc conv=fsync +dd if=/dev/zero of=$testfile bs=1M count=50 conv=notrunc conv=fsync + +_scratch_remount checkpoint=enable + +status=0 +exit diff --git a/tests/f2fs/006.out b/tests/f2fs/006.out new file mode 100644 index 00000000..0d7b3910 --- /dev/null +++ b/tests/f2fs/006.out @@ -0,0 +1,6 @@ +QA output created by 006 +50+0 records in +50+0 records out +dd: error writing '/mnt/scratch_f2fs/testfile': No space left on device +3+0 records in +2+0 records out