[BUG] backport commit ebeec2ef4c in ubuntu-vivid.git break cephfs

[Ilya Dryomov]

On Fri, Apr 1, 2016 at 4:01 AM, Yan, Zheng <zyan at redhat.com> wrote:
>
>> On Mar 31, 2016, at 22:39, Kamal Mostafa <kamal at canonical.com> wrote:
>>
>> On Thu, Mar 31, 2016 at 12:06:42PM +0800, Yan, Zheng wrote:
>>> ubuntu-vivid git tree includes commit ebeec2ef4c (ceph: fix message
>>> length computation), but does not contain backport for upstream commit
>>> 1f041a89b4 (ceph: fix request time stamp encoding). This breaks cephfs
>>> kernel driver completely. Please add the later commit to your git
>>> tree.
>>>
>>> Regards
>>> Yan, Zheng
>>
>> Hi Yan-
>>
>> Thanks for letting us know about this.  If that patch is required for
>> all trees that carry a backport of 777d738 (ceph: fix message length
>> computation), then we'll need to apply 1f041a89b4 to:
>
> yes, that patch is required for all trees include the back port
>
>>
>>  3.19.y-ckt (stable)
>>  3.16.y-ckt (stable)
>>  ubuntu-vivid
>>  ubuntu-utopic
>>
>> For our reference, can you point me to a bug report or email thread
>> which discusses the breakage?
>>
> http://tracker.ceph.com/issues/15302 <http://tracker.ceph.com/issues/15302>

777d738a5e58 "Fixes" commit that went into 3.16, while 1f041a89b4f2
went into 4.0.  This means 3.18 stable series is affected is well.

Sasha, could you cherry-pick 1f041a89b4f2 ("ceph: fix request time
stamp encoding")?

Thanks,

                Ilya