Re: [xfstests PATCH v3 6/6] overlay: correct test mount options

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On Tue, Feb 13, 2018 at 11:48 AM, Eryu Guan <eguan@xxxxxxxxxx> wrote:
> On Tue, Feb 13, 2018 at 11:26:30AM +0200, Amir Goldstein wrote:
>> On Tue, Feb 13, 2018 at 9:08 AM, zhangyi (F) <yi.zhang@xxxxxxxxxx> wrote:
>> > Current overlay's _test_mount functions mount base test filesystem
>> > with TEST_FS_MOUNT_OPTS and mount test overlayfs with MOUNT_OPTIONS
>> > instead of TEST_FS_MOUNT_OPTS. The TEST_FS_MOUNT_OPTS variable
>> > should be used for test overlayfs like MOUNT_OPTIONS use for scratch
>> > overlayfs.
>> >
>> > This patch rename OVL_BASE_MOUNT_OPTIONS to
>> > OVL_BASE_SCRATCH_MOUNT_OPTIONS and introduce an counterpart variable
>> > OVL_BASE_TEST_MOUNT_OPTIONS for test base filesystem, and then use
>> > TEST_FS_MOUNT_OPTS for test overlayfs. We also modify overlay mount
>> > helpers to adapt mount options.
>> >
>> > Signed-off-by: zhangyi (F) <yi.zhang@xxxxxxxxxx>
>> > ---
>> >  common/config     | 17 +++++++++++++----
>> >  common/overlay    | 31 +++++++++++++++++++++++--------
>> >  tests/overlay/022 |  2 +-
>> >  tests/overlay/025 |  2 +-
>> >  tests/overlay/029 |  6 +++---
>> >  tests/overlay/036 | 20 ++++++++++----------
>> >  6 files changed, 51 insertions(+), 27 deletions(-)
>> >
>> > diff --git a/common/config b/common/config
>> > index 20f0e5f..fd04a16 100644
>> > --- a/common/config
>> > +++ b/common/config
>> > @@ -346,6 +346,9 @@ _test_mount_opts()
>> >         glusterfs)
>> >                 export TEST_FS_MOUNT_OPTS=$GLUSTERFS_MOUNT_OPTIONS
>> >                 ;;
>> > +       overlay)
>> > +               export TEST_FS_MOUNT_OPTS=$OVERLAY_MOUNT_OPTIONS
>> > +               ;;
>> >         ext2|ext3|ext4|ext4dev)
>> >                 # acls & xattrs aren't turned on by default on older ext$FOO
>> >                 export TEST_FS_MOUNT_OPTS="-o acl,user_xattr $EXT_MOUNT_OPTIONS"
>> > @@ -546,16 +549,19 @@ _overlay_config_override()
>> >         # Store original base fs vars
>> >         export OVL_BASE_TEST_DEV="$TEST_DEV"
>> >         export OVL_BASE_TEST_DIR="$TEST_DIR"
>> > -       # If config does not set MOUNT_OPTIONS, its value may be
>> > -       # leftover from previous _overlay_config_override, so
>> > +       # If config does not set MOUNT_OPTIONS and TEST_FS_MOUNT_OPTS, its
>> > +       # value may be leftover from previous _overlay_config_override, so
>> >         # don't use that value for base fs mount
>> >         [ "$MOUNT_OPTIONS" != "$OVERLAY_MOUNT_OPTIONS" ] || unset MOUNT_OPTIONS
>> > -       export OVL_BASE_MOUNT_OPTIONS="$MOUNT_OPTIONS"
>> > +       export OVL_BASE_SCRATCH_MOUNT_OPTIONS="$MOUNT_OPTIONS"
>> > +       [ "$TEST_FS_MOUNT_OPTS" != "$OVERLAY_MOUNT_OPTIONS" ] || unset TEST_FS_MOUNT_OPTS
>> > +       export OVL_BASE_TEST_MOUNT_OPTIONS="$TEST_FS_MOUNT_OPTS"
>> >
>> >         # Set TEST vars to overlay base and mount dirs inside base fs
>> >         export TEST_DEV="$OVL_BASE_TEST_DIR"
>> >         export TEST_DIR="$OVL_BASE_TEST_DIR/$OVL_MNT"
>> >         export MOUNT_OPTIONS="$OVERLAY_MOUNT_OPTIONS"
>> > +       export TEST_FS_MOUNT_OPTS="$OVERLAY_MOUNT_OPTIONS"
>> >
>> >         [ -b "$SCRATCH_DEV" ] || return 0
>> >
>> > @@ -580,7 +586,10 @@ _overlay_config_restore()
>> >         [ -z "$OVL_BASE_TEST_DIR" ] || export TEST_DIR=$OVL_BASE_TEST_DIR
>> >         [ -z "$OVL_BASE_SCRATCH_DEV" ] || export SCRATCH_DEV=$OVL_BASE_SCRATCH_DEV
>> >         [ -z "$OVL_BASE_SCRATCH_MNT" ] || export SCRATCH_MNT=$OVL_BASE_SCRATCH_MNT
>> > -       [ -z "$OVL_BASE_MOUNT_OPTIONS" ] || export MOUNT_OPTIONS=$OVL_BASE_MOUNT_OPTIONS
>> > +       [ -z "$OVL_BASE_SCRATCH_MOUNT_OPTIONS" ] || \
>> > +               export MOUNT_OPTIONS=$OVL_BASE_SCRATCH_MOUNT_OPTIONS
>> > +       [ -z "$OVL_BASE_TEST_MOUNT_OPTIONS" ] || \
>> > +               export TEST_FS_MOUNT_OPTS=$OVL_BASE_TEST_MOUNT_OPTIONS
>> >  }
>> >
>> >  # Parse config section options. This function will parse all the configuration
>> > diff --git a/common/overlay b/common/overlay
>> > index 29f9bf8..058b025 100644
>> > --- a/common/overlay
>> > +++ b/common/overlay
>> > @@ -20,7 +20,19 @@ _overlay_mount_dirs()
>> >         shift 3
>> >
>> >         $MOUNT_PROG -t overlay -o lowerdir=$lowerdir -o upperdir=$upperdir \
>> > -                   -o workdir=$workdir `_common_dev_mount_options $*`
>> > +                   -o workdir=$workdir $*
>> > +}
>> > +
>> > +# Mount overlayfs with optional dirs and mount point
>> > +_overlay_mount_optional_dirs()
>> > +{
>> > +       local lowerdir=$1
>> > +       local upperdir=$2
>> > +       local workdir=$3
>> > +       shift 3
>> > +
>> > +       _overlay_mount_dirs $lowerdir $upperdir $workdir \
>> > +                           `_common_dev_mount_options $*`
>> >  }
>> >
>>
>> Instead of changing the name of the helper and change all the tests
>> that call it,
>> factor out a "local" helper __overlay_mount_dirs_o() that takes all options
>> from argument and keep the helper name _overlay_mount_dirs(), which the
>> tests use, unchanged.
>
> Agreed, I just don't like the name __overlay_mount_dirs_o that much :)
> How about something like _do_overlay_mount_dirs?
>

Yeh, didn't like it either. __do is fine by me

Amir.
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