[Users] ploop and trim/ discard support

[Corin Langosch]

On 13.09.2012 at 09:22 +0200, Kirill Korotaev <dev at parallels.com> wrote:
>
> No, AFAIR we should use TRIM on ext4 and it simply reports unused space.
> Balloon is used for "resize" via allocating some space and hiding it 
> from user,  but for compacting it's a bit bad since can cause ENOSPC 
> while it's really not...
>

So this whole ballooning is only a work around as trim/ discard support 
for ext4 is only available in kernel >= 2.6.33? Once openvz is rebased 
to a newer kernel (3.2.x?) it can/ will be dropped? :)

Corin