linux-ext4 - Re: [PATCH v2] generic: test negative SEEK_HOLE/SEEK

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Date:   Fri, 14 Jul 2017 11:41:19 +0800
From:   Eryu Guan <eguan@...hat.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        xfs <linux-xfs@...r.kernel.org>,
        linux-ext4 <linux-ext4@...r.kernel.org>,
        fstests <fstests@...r.kernel.org>
Subject: Re: [PATCH v2] generic: test negative SEEK_HOLE/SEEK_DATA offsets

On Thu, Jul 13, 2017 at 12:06:41PM -0700, Darrick J. Wong wrote:
> Check that we get -ENXIO if the user calls SEEK_HOLE/SEEK_DATA with
> a negative file offset.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
> ---
> v2: use helpers as suggested by Eryu.
> ---
[snip]
> +
> +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 -rf "$tmp".* $testdir/file1
> +}

Just noticed there're two _cleanup()s, I'll remove this one and move the
one below here.

Thanks,
Eryu

> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +_supported_fs generic
> +_supported_os Linux
> +
> +_require_test
> +_require_seek_data_hole
> +
> +BASE_TEST_FILE=$TEST_DIR/seek_sanity_testfile
> +
> +_require_test_program "seek_sanity_test"
> +
> +# Disable extent zeroing for ext4 as that change where holes are created
> +if [ "$FSTYP" = "ext4" ]; then
> +	DEV=`_short_dev $TEST_DEV`
> +	echo 0 >/sys/fs/ext4/$DEV/extent_max_zeroout_kb
> +fi
> +
> +_cleanup()
> +{
> +	rm -f $tmp.* $BASE_TEST_FILE.*
> +}
> +
> +$here/src/seek_sanity_test -s 18 -e 18 $BASE_TEST_FILE > $seqres.full 2>&1 ||
> +	_fail "seek sanity check failed!"
> +
> +_check_dmesg
> +# success, all done
> +echo "Silence is golden"
> +status=0
> +exit
> diff --git a/tests/generic/702.out b/tests/generic/702.out
> new file mode 100644
> index 0000000..608d593
> --- /dev/null
> +++ b/tests/generic/702.out
> @@ -0,0 +1,2 @@
> +QA output created by 702
> +Silence is golden
> diff --git a/tests/generic/group b/tests/generic/group
> index 3c5a19c..6afd402 100644
> --- a/tests/generic/group
> +++ b/tests/generic/group
> @@ -449,4 +449,5 @@
>  444 auto quick acl
>  445 auto quick rw
>  446 auto quick rw dangerous
> +702 auto quick rw
>  931 auto quick clone