Use the new var OVL_BASE_SCRATCH_MNT to refer to overlay
base dir instead of the legacy SCRATCH_DEV var.
In overlay/011, when using MOUNT_PROG directly, provide
OVL_BASE_SCRATCH_MNT as device argument instead of 'none'.
This fix is required to support mount of base fs.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
As preparation step for configuring test/scratch base fs
for overlay tests:
- Rename OVERLAY_LOWER/UPPER/WORK_DIR => OVL_LOWER/UPPER/WORK
because we want to use OVL_ prefix for all base fs vars
- Prepend "ovl-" prefix to lower/upper/work path values to
isolate the overlay test dirs when running on a base fs
that is also used to run non overlay tests
- Make those vars values non-configurable, because lower/upper/work
directory names are an internal test detail which should
not concern the user and because we wish to simplify
and document the overlay tests setup
- Add helper _filter_ovl_dirs and use it to filter output
of test overlay/023 which matches the constant string "work"
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
The upper dentry may become stale before we remove it from overlay,
e.g. file was removed from upperdir directly, which triggered
warning/oops in ovl_remove_and_whiteout().
Commit cfc9fde0b07c ("ovl: verify upper dentry in
ovl_remove_and_whiteout()") fixed this issue.
Reviewed-by: Xiong Zhou <xzhou@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Amir Goldstein
Eryu Guan