Hi Martin,

On Mon, 5 Dec 2016 13:27:01 +0100, Martin Palma wrote:

> Ok, just discovered that with the fuse client, we have to add the '-r
> /path' option, to treat that as root. So I assume the caps 'mds allow
> r' is only needed if we also what to be able to mount the directory
> with the kernel client. Right?

IIUC, this was recently fixed in the kernel client via:
commit ce2728aaa82bbebae7d20345324af3f0f49eeb20
Author: Yan, Zheng <z...@redhat.com>
Date:   Wed Sep 14 14:53:05 2016 +0800

    ceph: avoid accessing / when mounting a subpath

Cheers, David
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