On 22/08/2025 09:02, Ojaswin Mujoo wrote:
> Stress file with atomic writes to ensure we excercise codepaths
exercise
> where we are mixing different FS operations with atomic writes
>
> Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
> ---
> tests/generic/1229 | 68 ++++++++++++++++++++++++++++++++++++++++++
> tests/generic/1229.out | 2 ++
> 2 files changed, 70 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..7fa57105
> --- /dev/null
> +++ b/tests/generic/1229
> @@ -0,0 +1,68 @@
> +#! /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`
> +
> +set_fsx_avoid() {
> + local file=$1
> +
> + case "$FSTYP" in
> + "ext4")
> + local dev=$(findmnt -n -o SOURCE --target $testfile)
> +
> + # fsx insert/collpase range support for ext4+bigalloc is
> + # currently broken, so disable it. Also disable incase we can't
in case
> + # detect bigalloc to be on safer side.
> + if [ -z "$DUMPE2FS_PROG" ]; then
> + echo "dumpe2fs not found, disabling insert/collapse range" >> $seqres.full
> + FSX_AVOID+=" -I -C"
> + return
> + fi
> +
> + $DUMPE2FS_PROG -h $dev 2>&1 | grep -q bigalloc && {
> + echo "fsx insert/collapse range not supported with bigalloc. Disabling.." >> $seqres.full
> + FSX_AVOID+=" -I -C"
> + }
> + ;;
> + *)
> + ;;
> + esac
> +}
> +
> +# 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 ()
> +
> +set_fsx_avoid
> +_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