Disk space not re-claimed, because of loop mount?

["][" <mlist4suntong@yahoo.com>]

Hi, 

I noticed that my disk space did not re-gain after deleting a big iso file. 
Is it because that the iso file has been previously loop mounted? It was
unmounted before deletion of cause:

 $ df
 /dev/sda14            79631676  52241640  27390036  66% /lfs/cache12
 /dev/loop3             4571190   4571190         0 100% /mnt/tmp1

 sudo umount /mnt/tmp1

 $ lsof | grep my-big

 rm my-big.iso 

 $ df
 /dev/sda14            79631676  52241640  27390036  66% /lfs/cache12

The my-big.iso is over 4G in size. why there is no space increase after
it being deleted? I've checked with lsof that no one is using it.

please comment

thanks


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