[PATCH v4] ceph: Inline data support

[Li Wang <liwang@ubuntukylin.com>]

This patch implements inline data support for Ceph.
Review at:
https://github.com/ceph/ceph/pull/884
Pull at:
https://github.com/kylinstorage/ceph.git inline

Signed-off-by: Yunchuan Wen <yunchuanwen@ubuntukylin.com>
Signed-off-by: Li Wang <liwang@ubuntukylin.com>
---
Against v3:
Add the inline switch and make inline size tunable
Improve the back compatibility of mds from (9, 9) to (9, 6), provided the inlinefeature is disabled until all mds upgraded to support inline 

Against v2:
Streamline the inline data migration with the subsequent read/write

Against v1:
With simplified process under multiple-writer case,
referred to
http://pad.ceph.com/p/mds-inline-data,
http://www.spinics.net/lists/ceph-devel/msg16018.html

Li Wang (19):
  ceph: Add inline data feature
  ceph: Add inline state definition
  mds: Add inline fields to inode_t
  mds: Add inline encode/decode to inode_t
  ceph: Add inline fields to MClientCaps
  osdc: Add write method with truncate parameters
  mds: Add inline fields to Capability
  mds: Push inline data to client in cap message
  ceph: Add inline fields to InodeStat
  mds: Push inline data to client in inodestat
  mds: Receive updated inline data from client
  client: Add inline fields to Inode
  client: Receive inline data pushed from mds
  client: Push inline data to mds by send cap
  client: Add inline data migration helper
  client: Read inline data path
  client: Write inline data path
  client: Fallocate inline data path
  ceph: Add inline switch and make inline size tunable

 src/ceph_mds.cc             |    1 +
 src/client/Client.cc        |  277 +++++++++++++++++++++++++++++++++++++++----
 src/client/Client.h         |    4 +
 src/client/Inode.h          |    5 +
 src/common/config_opts.h    |    2 +
 src/include/ceph_features.h |    2 +
 src/include/ceph_fs.h       |    3 +
 src/mds/CInode.cc           |   22 ++++
 src/mds/Capability.h        |    2 +
 src/mds/Locker.cc           |    7 ++
 src/mds/Server.cc           |    3 +
 src/mds/mdstypes.cc         |   12 +-
 src/mds/mdstypes.h          |    3 +
 src/messages/MClientCaps.h  |   19 ++-
 src/messages/MClientReply.h |    9 ++
 src/osdc/Objecter.h         |   10 +-
 16 files changed, 351 insertions(+), 30 deletions(-)

-- 
1.7.9.5