Re: [PATCH v3 1/2] common: check if a given rename flag is supported in _requires_renameat2

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On Wed, Sep 18, 2019 at 07:47:47PM +0800, kaixuxia wrote:
> Some testcases may require a special rename flag, such as RENAME_WHITEOUT,
> so add support check for if a given rename flag is supported in
> _requires_renameat2.
> 
> Signed-off-by: kaixuxia <kaixuxia@xxxxxxxxxxx>

Nice improvement, thanks for the patch!

> ---
>  common/renameat2  | 30 +++++++++++++++++++++++++++++-
>  tests/generic/024 | 13 +++----------
>  tests/generic/025 | 13 +++----------
>  tests/generic/078 | 13 +++----------
>  4 files changed, 38 insertions(+), 31 deletions(-)
> 
> diff --git a/common/renameat2 b/common/renameat2
> index f8d6d4f..9625d8c 100644
> --- a/common/renameat2
> +++ b/common/renameat2
> @@ -103,10 +103,38 @@ _rename_tests()
>  #
>  _requires_renameat2()

I renamed the function to _require_renameat2 while we're at it, since
no other _require rules are named as "_requires".

>  {
> +	local flags=$1
> +	local rename_dir=$TEST_DIR/$$
> +	local cmd=""
> +
>  	if test ! -x src/renameat2; then
>  		_notrun "renameat2 binary not found"
>  	fi
> -	if ! src/renameat2 -t; then
> +
> +	mkdir $rename_dir
> +	touch $rename_dir/foo
> +	case $flags in
> +	"noreplace")
> +		cmd="-n $rename_dir/foo $rename_dir/bar"
> +		;;
> +	"exchange")
> +		touch $rename_dir/bar
> +		cmd="-x $rename_dir/foo $rename_dir/bar"
> +		;;
> +	"whiteout")
> +		touch $rename_dir/bar
> +		cmd="-w $rename_dir/foo $rename_dir/bar"
> +		;;
> +	"")

I added 'cmd=""' here as Brian suggested.

> +		;;
> +	*)
> +		rm -rf $rename_dir
> +		_notrun "only support noreplace,exchange,whiteout rename flags, please check."

I changed this to a _fail, as that indicates a test bug in helper usage.

> +		;;
> +	esac
> +	if ! src/renameat2 -t $cmd; then
> +		rm -rf $rename_dir
>  		_notrun "kernel doesn't support renameat2 syscall"
>  	fi
> +	rm -rf $rename_dir
>  }
> diff --git a/tests/generic/024 b/tests/generic/024
> index 2888c66..9c1161a 100755
> --- a/tests/generic/024
> +++ b/tests/generic/024

I also changed generic/398 and generic/419 to check for 'exchange' as
they use RENAME_EXCHANGE.

Thanks,
Eryu

> @@ -29,20 +29,13 @@ _supported_fs generic
>  _supported_os Linux
>  
>  _require_test
> -_requires_renameat2
> +_requires_renameat2 noreplace
>  _require_test_symlinks
>  
> -rename_dir=$TEST_DIR/$$
> -mkdir $rename_dir
> -touch $rename_dir/foo
> -if ! src/renameat2 -t -n $rename_dir/foo $rename_dir/bar; then
> -    rm -f $rename_dir/foo $rename_dir/bar; rmdir $rename_dir
> -    _notrun "fs doesn't support RENAME_NOREPLACE"
> -fi
> -rm -f $rename_dir/foo $rename_dir/bar
> -
>  # real QA test starts here
>  
> +rename_dir=$TEST_DIR/$$
> +mkdir $rename_dir
>  _rename_tests $rename_dir -n
>  rmdir $rename_dir
>  
> diff --git a/tests/generic/025 b/tests/generic/025
> index 0310efa..1ee9ad6 100755
> --- a/tests/generic/025
> +++ b/tests/generic/025
> @@ -29,20 +29,13 @@ _supported_fs generic
>  _supported_os Linux
>  
>  _require_test
> -_requires_renameat2
> +_requires_renameat2 exchange
>  _require_test_symlinks
>  
> -rename_dir=$TEST_DIR/$$
> -mkdir $rename_dir
> -touch $rename_dir/foo $rename_dir/bar
> -if ! src/renameat2 -t -x $rename_dir/foo $rename_dir/bar; then
> -    rm -f $rename_dir/foo $rename_dir/bar; rmdir $rename_dir
> -    _notrun "fs doesn't support RENAME_EXCHANGE"
> -fi
> -rm -f $rename_dir/foo $rename_dir/bar
> -
>  # real QA test starts here
>  
> +rename_dir=$TEST_DIR/$$
> +mkdir $rename_dir
>  _rename_tests $rename_dir -x
>  rmdir $rename_dir
>  
> diff --git a/tests/generic/078 b/tests/generic/078
> index 9608574..37f3201 100755
> --- a/tests/generic/078
> +++ b/tests/generic/078
> @@ -29,20 +29,13 @@ _supported_fs generic
>  _supported_os Linux
>  
>  _require_test
> -_requires_renameat2
> +_requires_renameat2 whiteout
>  _require_test_symlinks
>  
> -rename_dir=$TEST_DIR/$$
> -mkdir $rename_dir
> -touch $rename_dir/foo $rename_dir/bar
> -if ! src/renameat2 -t -w $rename_dir/foo $rename_dir/bar; then
> -    rm -f $rename_dir/foo $rename_dir/bar; rmdir $rename_dir
> -    _notrun "fs doesn't support RENAME_WHITEOUT"
> -fi
> -rm -f $rename_dir/foo $rename_dir/bar
> -
>  # real QA test starts here
>  
> +rename_dir=$TEST_DIR/$$
> +mkdir $rename_dir
>  _rename_tests $rename_dir -w
>  rmdir $rename_dir
>  
> -- 
> 1.8.3.1
> 
> -- 
> kaixuxia



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