I accidentally deleted a directory with
rm -rf /media/directory
ls -lh /media
the space appears to be free, but when I use
df or open the file manager
pantheon, it shows that the previously occupied space is still allocated.
I googled this problem and some says that some process is still using these data, so it won't be freed till unmount, restart or killing the process itself. I did none of these still, is there any way to recover it?