The following RBD features are supported since these kernel versions:

Kernel 3.8: RBD_FEATURE_LAYERING
https://github.com/ceph/ceph-client/commit/d889140c4a1c5edb6a7bd90392b9d878bfaccfb6
Kernel 3.10: RBD_FEATURE_STRIPINGV2
https://github.com/ceph/ceph-client/commit/5cbf6f12c48121199cc214c93dea98cce719343b
Kernel 4.9: RBD_FEATURE_EXCLUSIVE_LOCK
https://github.com/ceph/ceph-client/commit/ed95b21a4b0a71ef89306cdeb427d53cc9cb343f
Kernel 4.11: RBD_FEATURE_DATA_POOL
https://github.com/ceph/ceph-client/commit/7e97332ea9caad3b7c6d86bc3b982e17eda2f736

Try using rbd-nbd if you need other features.

Paul


2018-05-15 11:06 GMT+02:00 xiang....@sky-data.cn <xiang....@sky-data.cn>:

> Could give a list about enable or not?
>
> ----- Original Message -----
> From: "Konstantin Shalygin" <k0...@k0ste.ru>
> To: "ceph-users" <ceph-users@lists.ceph.com>
> Cc: "xiang dai" <xiang....@sky-data.cn>
> Sent: Tuesday, May 15, 2018 4:57:00 PM
> Subject: Re: [ceph-users] which kernel support object-map, fast-diff
>
> > So which kernel version support those feature?
>
>
> No one kernel support this features yet.
>
>
>
> k
> --
> 戴翔
> 南京天数信息科技有限公司
> 电话: +86 1 3382776490
> 公司官网: www.sky-data.cn
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-- 
-- 
Paul Emmerich

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