Re: [PATCH v2] generic/{175,297,298}: fix use of uninitialized var

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On Tue, Aug 15, 2023 at 11:28:35AM +0300, Amir Goldstein wrote:
> The truncate command in those tests use an uninitialized variable i.
> in kdevops, i must contain some leftover, so we get errors like:
> /data/fstests-install/xfstests/tests/generic/298: line 45: /dev/loop12):
>            syntax error: operand expected (error token is "/dev/loop12)")
> 
> Apparently, noone including the author of the tests knows why this
> truncate command is in the test, so remove the wrong truncate command.
> 
> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>

LGTM! :)
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>

--D

> ---
> 
> Changes since v1:
> - Remove the unneeded truncate command instead of fixing it
> 
>  tests/generic/175 | 1 -
>  tests/generic/297 | 1 -
>  tests/generic/298 | 1 -
>  3 files changed, 3 deletions(-)
> 
> diff --git a/tests/generic/175 b/tests/generic/175
> index 07af2199..f827beb6 100755
> --- a/tests/generic/175
> +++ b/tests/generic/175
> @@ -33,7 +33,6 @@ _pwrite_byte 0x61 0 $blksz "$testdir/file1" >> "$seqres.full"
>  
>  fnr=19
>  echo "Create extents"
> -truncate -s $(( (2 ** i) * blksz)) "$testdir/file1"
>  for i in $(seq 0 $fnr); do
>  	echo " ++ Reflink size $i, $((2 ** i)) blocks" >> "$seqres.full"
>  	n=$(( (2 ** i) * blksz))
> diff --git a/tests/generic/297 b/tests/generic/297
> index 6bdc3e1c..54c2ac21 100755
> --- a/tests/generic/297
> +++ b/tests/generic/297
> @@ -42,7 +42,6 @@ _pwrite_byte 0x61 0 $blksz $testdir/file1 >> $seqres.full
>  fnr=26		# 2^26 reflink extents should be enough to find a slow op?
>  timeout=8	# guarantee a good long run...
>  echo "Find a reflink size that takes a long time"
> -truncate -s $(( (2 ** i) * blksz)) $testdir/file1
>  for i in $(seq 0 $fnr); do
>  	echo " ++ Reflink size $i, $((2 ** i)) blocks" >> $seqres.full
>  	n=$(( (2 ** i) * blksz))
> diff --git a/tests/generic/298 b/tests/generic/298
> index 95d4c02b..115a9bf7 100755
> --- a/tests/generic/298
> +++ b/tests/generic/298
> @@ -42,7 +42,6 @@ _pwrite_byte 0x61 0 $blksz $testdir/file1 >> $seqres.full
>  fnr=26		# 2^26 reflink extents should be enough to find a slow op?
>  timeout=8	# guarantee a good long run...
>  echo "Find a reflink size that takes a long time"
> -truncate -s $(( (2 ** i) * blksz)) $testdir/file1
>  for i in $(seq 0 $fnr); do
>  	echo " ++ Reflink size $i, $((2 ** i)) blocks" >> $seqres.full
>  	n=$(( (2 ** i) * blksz))
> -- 
> 2.34.1
> 



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