Am 2011-10-12 01:17, schrieb Alan McKinnon:

> You asked the drive firmware for a favour - to please check if anything
> can be discarded and if so to discard it.
> 
> <cue Mafia voice a la GodFather>
> 
> The firmware checked that it *could* discard X bytes and then figured
> well, maybe it will, maybe it won't, maybe it'll do it on it's own
> good time, but what the heck - tell the user anyway how many bytes X
> is. Maybe that'll make the user happy so he'll stfu and go away......
> 
> The command leads you to believe the discard was actually done, but
> that's not necessarily true :-)
> 
> It's probably a case of the drive knows much better than you what it
> should do.

Ah, ok, Mafia implemented now ... ;-)
Thanks, Stefan

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