Re: [PATCH v3 08/13] generic/1229: Stress fsx with atomic writes enabled

Darrick J. Wong
2025-07-17T16:22:31Z

On Sat, Jul 12, 2025 at 07:42:50PM +0530, Ojaswin Mujoo wrote:
> Stress file with atomic writes to ensure we excercise codepaths
> where we are mixing different FS operations with atomic writes
>
> Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
> Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>

Hrm, doesn't generic/521 test this already if the fs happens to support
atomic writes?

--D

> ---
> tests/generic/1229 | 41 +++++++++++++++++++++++++++++++++++++++++
> tests/generic/1229.out | 2 ++
> 2 files changed, 43 insertions(+)
> create mode 100755 tests/generic/1229
> create mode 100644 tests/generic/1229.out
>
> diff --git a/tests/generic/1229 b/tests/generic/1229
> new file mode 100755
> index 00000000..98e9b50c
> --- /dev/null
> +++ b/tests/generic/1229
> @@ -0,0 +1,41 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2025 IBM Corporation. All Rights Reserved.
> +#
> +# FS QA Test 1229
> +#
> +# fuzz fsx with atomic writes
> +#
> +. ./common/preamble
> +. ./common/atomicwrites
> +_begin_fstest rw auto quick atomicwrites
> +
> +_require_odirect
> +_require_scratch_write_atomic
> +
> +_scratch_mkfs >> $seqres.full 2>&1
> +_scratch_mount >> $seqres.full 2>&1
> +
> +testfile=$SCRATCH_MNT/testfile
> +touch $testfile
> +
> +awu_max=$(_get_atomic_write_unit_max $testfile)
> +blksz=$(_get_block_size $SCRATCH_MNT)
> +bsize=`$here/src/min_dio_alignment $SCRATCH_MNT $SCRATCH_DEV`
> +
> +# fsx usage:
> +#
> +# -N numops: total # operations to do
> +# -l flen: the upper bound on file size
> +# -o oplen: the upper bound on operation size (64k default)
> +# -Z: O_DIRECT ()
> +
> +_run_fsx_on_file $testfile -N 10000 -o $awu_max -A -l 500000 -r $bsize -w $bsize -Z $FSX_AVOID >> $seqres.full
> +if [[ "$?" != "0" ]]
> +then
> + _fail "fsx returned error: $?"
> +fi
> +
> +echo "Silence is golden"
> +status=0
> +exit
> diff --git a/tests/generic/1229.out b/tests/generic/1229.out
> new file mode 100644
> index 00000000..737d61c6
> --- /dev/null
> +++ b/tests/generic/1229.out
> @@ -0,0 +1,2 @@
> +QA output created by 1229
> +Silence is golden
> --
> 2.49.0
>
>