Re: [Qemu-devel] [PATCH] hw/9pfs: Add CephFS support in VirtFS

["Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>]

Greg Kurz <gkurz@linux.vnet.ibm.com> writes:

> On Tue, 15 Mar 2016 00:02:48 +0800
> Jevon Qiao <scaleqiao@gmail.com> wrote:
>
>> Ceph as a promising unified distributed storage system is widely used in the
>> world of OpenStack. OpenStack users deploying Ceph for block (Cinder) and
>> object (S3/Swift) are unsurprisingly looking at Manila and CephFS to round out
>> a unified storage solution. Since the typical hypervisor people are using is
>> Qemu/KVM, it is necessary to provide a high performance, easy to use, file
>> system service in it. VirtFS aims to offers paravirtualized system services and
>> simple passthrough for directories from host to guest, which currently only
>> support local file system, this patch wants to add CephFS support in VirtFS.
>> 
>> Signed-off-by: Jevon Qiao <scaleqiao@gmail.com>
>> ---
>
> Jevon,
>
> There's still work to be done on this patch.
>
> One general remark is that there are far too many traces: it obfuscates the code
> and does not bring much benefit in my opinion. If you look at the other fsdev
> drivers, you see they don't do traces at all !
>
> Also, I've found several errors where the code simply cannot work... please run
> a file/io oriented testsuite in the guest to check all the fsdev operations are
> working as expected... maybe some tests from LTP ?

Also use this http://tuxera.com/sw/qa/pjd-fstest-20090130-RC.tgz 

-aneesh