linux-kernel - Re: [GIT PULL] Ceph fixes for -rc7

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Date:	Fri, 25 Mar 2016 15:02:30 +1100
From:	NeilBrown <neilb@...e.com>
To:	Sage Weil <sweil@...hat.com>, torvalds@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, ceph-devel@...r.kernel.org
Subject: Re: [GIT PULL] Ceph fixes for -rc7

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.

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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