Re: [PATCH v2] common: handle ceph's new mount syntax

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On Thu, Jan 06, 2022 at 06:23:16AM -0500, Jeff Layton wrote:
> Cephfs is introducing a new mount device syntax. Fix the fstests
> infrastructure to handle the new syntax correctly.
> 
> Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
> ---
>  common/config |  8 ++++++++
>  common/rc     | 34 ++++++++++++++++++++++++++++++++--
>  2 files changed, 40 insertions(+), 2 deletions(-)
> 
> v2: more rigorous check for ceph mount device in _check_device
> 
> diff --git a/common/config b/common/config
> index e0a5c5df58ff..2b357746476b 100644
> --- a/common/config
> +++ b/common/config
> @@ -537,6 +537,14 @@ _check_device()
>  		# 9p and virtiofs mount tags are just plain strings, so anything is allowed
>  		# tmpfs doesn't use mount source, ignore
>  		;;
> +	ceph)
> +		# ceph has two different possible syntaxes for mount devices. The
> +		# network URL check above catches the legacy syntax. Check for the
> +		# new-style syntax here.
> +		if ( echo $dev | grep -qEv "=/" ); then
> +			_fatal "common/config: $name ($dev) is not a valid ceph mount string"
> +		fi
> +		;;

I have not objection with this, if the maintainer prefer:

-       if [ -b "$dev" ] || ( echo $dev | grep -qE ":|//" ); then
+       if [ -b "$dev" ] || ( echo $dev | grep -qE ":|//|=/" ); then
                # block device or a network url
                return 0
        fi

>  	overlay)
>  		if [ ! -d "$dev" ]; then
>  			_fatal "common/config: $name ($dev) is not a directory for overlay"
> diff --git a/common/rc b/common/rc
> index 7973ceb5fdf8..4fa0b818d840 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -1592,7 +1592,7 @@ _require_scratch_nocheck()
>  			_notrun "this test requires a valid \$SCRATCH_MNT"
>  		fi
>  		;;
> -	nfs*|ceph)
> +	nfs*)
>  		echo $SCRATCH_DEV | grep -q ":/" > /dev/null 2>&1
>  		if [ -z "$SCRATCH_DEV" -o "$?" != "0" ]; then
>  			_notrun "this test requires a valid \$SCRATCH_DEV"
> @@ -1601,6 +1601,21 @@ _require_scratch_nocheck()
>  			_notrun "this test requires a valid \$SCRATCH_MNT"
>  		fi
>  		;;
> +	ceph)
> +		if [ -z "$SCRATCH_DEV" ]; then
> +			_notrun "this test requires a valid \$SCRATCH_DEV"
> +		fi
> +		echo $SCRATCH_DEV | grep -q "=/" > /dev/null 2>&1
> +		if [ "$?" != "0" ]; then
> +			echo $SCRATCH_DEV | grep -q ":/" > /dev/null 2>&1
> +			if [ "$?" != "0" ]; then

Why not combine two "if condition" into one, likes:
  echo $SCRATCH_DEV | grep -Eq "=/|:/" >/dev/null 2>&1
  if [ "$?" != "0" ] ....

(Sorry I didn't metion this last time...)

Same below:
 
> +				_notrun "this test requires a valid \$SCRATCH_DEV"
> +			fi
> +		fi
> +		if [ ! -d "$SCRATCH_MNT" ]; then
> +			_notrun "this test requires a valid \$SCRATCH_MNT"
> +		fi
> +		;;
>  	pvfs2)
>  		echo $SCRATCH_DEV | grep -q "://" > /dev/null 2>&1
>  		if [ -z "$SCRATCH_DEV" -o "$?" != "0" ]; then
> @@ -1770,7 +1785,7 @@ _require_test()
>  			_notrun "this test requires a valid \$TEST_DIR"
>  		fi
>  		;;
> -	nfs*|ceph)
> +	nfs*)
>  		echo $TEST_DEV | grep -q ":/" > /dev/null 2>&1
>  		if [ -z "$TEST_DEV" -o "$?" != "0" ]; then
>  			_notrun "this test requires a valid \$TEST_DEV"
> @@ -1779,6 +1794,21 @@ _require_test()
>  			_notrun "this test requires a valid \$TEST_DIR"
>  		fi
>  		;;
> +	ceph)
> +		if [ -z "$TEST_DEV" ]; then
> +			_notrun "this test requires a valid \$TEST_DEV"
> +		fi
> +		echo $TEST_DEV | grep -q "=/" > /dev/null 2>&1
> +		if [ "$?" != "0" ]; then
> +			echo $TEST_DEV | grep -q ":/" > /dev/null 2>&1
> +			if [ "$?" != "0" ]; then
> +				_notrun "this test requires a valid \$TEST_DEV"
> +			fi
> +		fi
> +		if [ ! -d "$TEST_DIR" ]; then
> +			_notrun "this test requires a valid \$TEST_DIR"
> +		fi
> +		;;
>  	cifs)
>  		echo $TEST_DEV | grep -q "//" > /dev/null 2>&1
>  		if [ -z "$TEST_DEV" -o "$?" != "0" ]; then
> -- 
> 2.33.1
> 




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