Linux: how to discover open files from smbd ?

[Gerhard Zuber]

I have a CD-Changer and I want to change the cd under the share.

this is done by a script, consisting of
  unmounting the cdrom
  changing the slot
  mounting the cdrom again

to successfully do this, there must be no open files or directories
on the mountpoint.

If I browse with windows-nt-filemanager on that share it seems there
are files/dirs held open by smbd. in elder versions of smbd this
time was very short, so one second was acceptable to wait.

now in newer versions of smbd (maybe the new locking code) this time
is unacceptable long, so I need to kill that smbd is sitting on that
share.

So my question:

how to shorten that time

or 

how to find the smbd is helding files/dirs open and killing it. There can
be more than one smbd running, i should kill the right one.

many thanx

Sincerely Yours / Mit freundlichen Grüßen:   Gerhard Zuber
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Dipl.-Ing. Gerhard Zuber    Telefon: (030) 861 32 01
Pfalzburger Str. 25
10719 Berlin               Internet: zuber at berlin.snafu.de
Germany                       phone: +49.30.8613201
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Meine Meinung ist immer die meinige. My opinions are always my own.