The nfs_export feature was introduced since kernel v4.16-rc1 after
commit f168f1098dd9038 ("ovl: add support for "nfs_export" configuration").
On old kernel, this case will result in infinite loop because overlay
mount failed because of unrecognized mount options nfs_export=off.
In kernel documentation, overlay.rst said "the mount options index=off,nfs_export=on
are conflicting for a read-write mount and will result in an error.".
So using single index=off is also ok in here.
Signed-off-by: Yang Xu <xuyang2018.jy@xxxxxxxxxxx>
---
tests/generic/631 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/generic/631 b/tests/generic/631
index c43f3de3..0fa47e49 100755
--- a/tests/generic/631
+++ b/tests/generic/631
@@ -74,7 +74,7 @@ worker() {
local l="lowerdir=$SCRATCH_MNT/lowerdir:$SCRATCH_MNT/lowerdir1"
local u="upperdir=$SCRATCH_MNT/upperdir$tag"
local w="workdir=$SCRATCH_MNT/workdir$tag"
- local i="index=off,nfs_export=off"
+ local i="index=off"
touch $SCRATCH_MNT/workers/$tag
while test -e $SCRATCH_MNT/running; do
--
2.23.0
