On 2013-03-29, Laurent Bercot <[email protected]> wrote:
>> Maybe you will find lsof helpful, e.g.
>>
>> lsof +D /my/mountpoint
>
> lsof, as fuser, are /proc-scanning tools. Scanning /proc to then grep
> the output is inefficient, and also non-atomic.
If you want something that's atomic, then I think 'umount' is your
only option. If it fails, the fielsystem was busy. If it succeeds,
then it wasn't busy and is now unmounted.
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