Re: [PATCH 25/20] sysfs: Only support removing emtpy sysfs directories.

[Eric W. Biederman]

Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes:

> On Wed, 27 May 2009, Kay Sievers wrote:
>
>> On Wed, May 27, 2009 at 01:49, James Bottomley
>> <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
>> 
>> > OK ... perhaps we have to wait a little harder: try this; it waits until
>> > all the targets have disappeared from visibility via an event.
>> 
>> That seems to work fine here.
>
> It's good for a short-term fix.  For the longer term, I still think 
> it's a mistake to wait for the sdevs to be released before deleting the 
> target.  It gives user programs the ability to block the host-removal 
> thread indefinitely.

How can user programs block removal indefinitely today?

Eric
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