On Sat, 29 Mar 2008, Christian Kujau wrote:
>> jfs_fsck could probably determine when this table is over-sized and
>> rebuild it to be smaller.  I've thought about it before, but haven't
>> gotten around to doing anything.
>
> Doesn't hurt much, I've seen it only by accident.

Actually, I could imagine a scenario, where it *does* hurt: df(1)
too was seeing this ~570 MB - when I deleted/moved the directory, these 
bytes were freed:

$ df -k .
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda7             29634456  21307876   8326580  72% /data
$ mv bwbar /tmp/
$ df -k .
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda7             29634456  20723776   8910680  70% /data

So, even if jfs_fsck could fix this - isn't this a problem when e.g. 
/var/log or some spool with lots of updates in the same directory
is put on JFS? Although the space is not "really" lost, recreating
/var/log every now and then still feels a bit uglly :-\

Christian.
-- 
BOFH excuse #97:

Small animal kamikaze attack on power supplies

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