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SubjectRe: [GIT PULL] Ceph fixes for -rc7
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On Fri, Mar 25, 2016 at 12:02 PM, NeilBrown <neilb@suse.com> wrote:
> On Sun, Mar 06 2016, Sage Weil wrote:
>
>> Hi Linus,
>>
>> Please pull the following Ceph patch from
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git for-linus
>>
>> This is a final commit we missed to align the protocol compatibility with
>> the feature bits. It decodes a few extra fields in two different messages
>> and reports EIO when they are used (not yet supported).
>>
>> Thanks!
>> sage
>>
>>
>> ----------------------------------------------------------------
>> Yan, Zheng (1):
>> ceph: initial CEPH_FEATURE_FS_FILE_LAYOUT_V2 support
>
> Just wondering, but was CEPH_FEATURE_FS_FILE_LAYOUT_V2 supposed to have
> exactly the same value as CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING (and
> CEPH_FEATURE_CRUSH_TUNABLES5)??
> Because when I backported this patch (and many others) to some ancient
> enterprise kernel, it caused mounts to fail. If it really is meant to
> be the same value, then I must have some other backported issue to find
> and fix.

Yes, it's mean to be some value. For the mount failure, please make
sure the MDS is compiled from the newest ceph code.

Regards
Yan, Zheng

>
> Thanks,
> NeilBrown
>
>
>>
>> fs/ceph/addr.c | 4 ++++
>> fs/ceph/caps.c | 27 ++++++++++++++++++++++++---
>> fs/ceph/inode.c | 2 ++
>> fs/ceph/mds_client.c | 16 ++++++++++++++++
>> fs/ceph/mds_client.h | 1 +
>> fs/ceph/super.h | 1 +
>> include/linux/ceph/ceph_features.h | 1 +
>> 7 files changed, 49 insertions(+), 3 deletions(-)

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