The test verifies constant inode number after copy up.
Verify that inode number remains constant also after rename
and drop caches (when overlayfs needs to find the lower
inodes in another location).
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
# - modify A to trigger copy up
# - stat file A shows inode number Y != X
#
# - modify A to trigger copy up
# - stat file A shows inode number Y != X
#
-# Also test if d_ino of readdir entries changes after copy up.
+# Also test if d_ino of readdir entries changes after copy up
+# and if inode numbers persist after rename and drop caches.
#
#-----------------------------------------------------------------------
#
#
#-----------------------------------------------------------------------
#
+testdir=$SCRATCH_MNT/test
+mkdir -p $testdir
# Record inode numbers before copy up
record_inode_numbers $SCRATCH_MNT $tmp.before
# Record inode numbers before copy up
record_inode_numbers $SCRATCH_MNT $tmp.before
# Compare inode numbers before/after copy up
check_inode_numbers $SCRATCH_MNT $tmp.before $tmp.after_copyup
# Compare inode numbers before/after copy up
check_inode_numbers $SCRATCH_MNT $tmp.before $tmp.after_copyup
+for f in $FILES; do
+ # move to another dir
+ mv $SCRATCH_MNT/$f $testdir/
+done
+
+echo 3 > /proc/sys/vm/drop_caches
+
+# Compare inode numbers before/after rename and drop caches
+check_inode_numbers $testdir $tmp.after_copyup $tmp.after_move
+
echo "Silence is golden"
status=0
exit
echo "Silence is golden"
status=0
exit