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

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On Fri, 2022-01-07 at 01:09 +0800, Zorro Lang wrote:
> 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
> 

The "=/" part of the syntax is (so far) ceph-specific. I don't think we
want to accept that for (e.g.) NFS, so it's probably best to allow that
only when FSTYP=ceph.

> >  	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:
>  

Fair enough -- that's more efficient too. I'll respin with that.

> > +				_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
> > 
> 

Thanks,
-- 
Jeff Layton <jlayton@xxxxxxxxxx>



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