[Users] discard support for SSD in OpenVZ kernel

[spameden]

is it implemented?

I've tried on 3.2.0-4 debian wheezy default kernel it's working just fine:
# dmsetup table
vg0-home: 0 443277312 linear 9:1 25166208
home: 0 443273216 crypt aes-cbc-plain
0000000000000000000000000000000000000000000000000000000000000000 0 253:2
4096 1 allow_discards

But not on OpenVZ's 2.6.32.xxxx:
# dmsetup table
vg0-home: 0 443277312 linear 9:1 25166208
home: 0 443273216 crypt aes-cbc-plain
0000000000000000000000000000000000000000000000000000000000000000 0 253:2
4096
vg0-swap: 0 4194304 linear 9:1 20971904
vg0-root: 0 20971520 linear 9:1 384
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