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Date:	Tue, 31 Jul 2012 11:35:41 -0700 (PDT)
From:	Sage Weil <sage@...tank.com>
To:	torvalds@...ux-foundation.org
cc:	linux-kernel@...r.kernel.org, ceph-devel@...r.kernel.org
Subject: [GIT PULL] Ceph changes for 3.6

Hi Linus,

Please pull the following Ceph changes for 3.6 from

  git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git for-linus

There are several trivial conflicts to resolve; sorry!  Stephen is 
carrying fixes for them in linux-next as well.

Lots of stuff this time around:

 * lots of cleanup and refactoring in the libceph messenger code, and many 
   hard to hit races and bugs closed as a result.
 * lots of cleanup and refactoring in the rbd code from Alex Elder, mostly in 
   preparation for the layering functionality that will be coming in 3.7.
 * some misc rbd cleanups from Josh Durgin that are finally going upstream
 * support for CRUSH tunables (used by newer clusters to improve the data
   placement)
 * some cleanup in our use of d_parent that Al brought up a while back
 * a random collection of fixes across the tree

There is another patch coming that fixes up our ->atomic_open() behavior, 
but I'm going to hammer on it a bit more before sending it.

Thanks!
sage

----------------------------------------------------------------
Alan Cox (1):
      ceph: fix potential double free

Alex Elder (76):
      libceph: eliminate connection state "DEAD"
      libceph: kill bad_proto ceph connection op
      libceph: rename socket callbacks
      libceph: rename kvec_reset and kvec_add functions
      libceph: embed ceph messenger structure in ceph_client
      libceph: start separating connection flags from state
      libceph: start tracking connection socket state
      libceph: provide osd number when creating osd
      libceph: set CLOSED state bit in con_init
      libceph: osd_client: don't drop reply reference too early
      libceph: embed ceph connection structure in mon_client
      libceph: init monitor connection when opening
      libceph: fully initialize connection in con_init()
      libceph: tweak ceph_alloc_msg()
      libceph: have messages point to their connection
      libceph: have messages take a connection reference
      libceph: make ceph_con_revoke() a msg operation
      libceph: make ceph_con_revoke_message() a msg op
      libceph: encapsulate out message data setup
      libceph: encapsulate advancing msg page
      libceph: don't mark footer complete before it is
      libceph: move init_bio_*() functions up
      libceph: move init of bio_iter
      libceph: don't use bio_iter as a flag
      libceph: SOCK_CLOSED is a flag, not a state
      libceph: don't change socket state on sock event
      libceph: just set SOCK_CLOSED when state changes
      libceph: don't touch con state in con_close_socket()
      libceph: clear CONNECTING in ceph_con_close()
      libceph: clear NEGOTIATING when done
      libceph: define and use an explicit CONNECTED state
      libceph: separate banner and connect writes
      libceph: distinguish two phases of connect sequence
      libceph: small changes to messenger.c
      libceph: add some fine ASCII art
      libceph: drop declaration of ceph_con_get()
      libceph: fix off-by-one bug in ceph_encode_filepath()
      rbd: drop a useless local variable
      libceph: define ceph_extract_encoded_string()
      rbd: define dup_token()
      rbd: rename rbd_dev->block_name
      rbd: create pool_id device attribute
      rbd: dynamically allocate pool name
      rbd: dynamically allocate object prefix
      rbd: dynamically allocate image header name
      rbd: dynamically allocate image name
      rbd: dynamically allocate snapshot name
      rbd: use rbd_dev consistently
      rbd: rename some fields in struct rbd_dev
      rbd: more symbol renames
      rbd: option symbol renames
      rbd: kill num_reply parameters
      rbd: don't use snapc->seq that way
      rbd: preserve snapc->seq in rbd_header_set_snap()
      rbd: set snapc->seq only when refreshing header
      rbd: kill rbd_image_header->snap_seq
      rbd: drop extra header_rwsem init
      rbd: simplify __rbd_remove_all_snaps()
      rbd: clean up a few dout() calls
      ceph: define snap counts as u32 everywhere
      rbd: encapsulate header validity test
      rbd: rename rbd_device->id
      rbd: snapc is unused in rbd_req_sync_read()
      rbd: drop rbd_header_from_disk() gfp_flags parameter
      rbd: drop rbd_dev parameter in snap functions
      rbd: drop "object_name" from rbd_req_sync_watch()
      rbd: drop "object_name" from rbd_req_sync_notify()
      rbd: drop "object_name" from rbd_req_sync_notify_ack()
      rbd: drop "object_name" from rbd_req_sync_unwatch()
      rbd: have __rbd_add_snap_dev() return a pointer
      rbd: make rbd_create_rw_ops() return a pointer
      rbd: pass null version pointer in add_snap()
      rbd: always pass ops array to rbd_req_sync_op()
      rbd: fixes in rbd_header_from_disk()
      rbd: return obj version in __rbd_refresh_header()
      rbd: create rbd_refresh_helper()

Dan Carpenter (2):
      rbd: endian bug in rbd_req_cb()
      libceph: fix NULL dereference in reset_connection()

Guanjun He (1):
      libceph: prevent the race of incoming work during teardown

Jiaju Zhang (1):
      libceph: trivial fix for the incorrect debug output

Josh Durgin (6):
      rbd: return errors for mapped but deleted snapshot
      rbd: only reset capacity when pointing to head
      rbd: expose the correct size of the device in sysfs
      rbd: set image size when header is updated
      rbd: use reference counting for the snap context
      rbd: send header version when notifying

Sage Weil (40):
      libceph: use con get/put ops from osd_client
      libceph: drop connection refcounting for mon_client
      libceph: transition socket state prior to actual connect
      libceph: flush msgr queue during mon_client shutdown
      Merge tag 'v3.5-rc1'
      libceph: use con get/put methods
      libceph: drop ceph_con_get/put helpers and nref member
      libceph: set peer name on con_open, not init
      libceph: initialize mon_client con only once
      libceph: allow sock transition from CONNECTING to CLOSED
      libceph: initialize msgpool message types
      libceph: initialize rb, list nodes in ceph_osd_request
      libceph: fix messenger retry
      ceph: clean up useless d_parent checks
      libceph: move feature bits to separate header
      libceph: support crush tunables
      libceph: report socket read/write error message
      libceph: fix mutex coverage for ceph_con_close
      libceph: resubmit linger ops when pg mapping changes
      libceph: (re)initialize bio_iter on start of message receive
      ceph: close old con before reopening on mds reconnect
      libceph: protect ceph_con_open() with mutex
      libceph: reset connection retry on successfully negotiation
      libceph: fix fault locking; close socket on lossy fault
      libceph: move msgr clear_standby under con mutex protection
      libceph: move ceph_con_send() closed check under the con mutex
      libceph: drop gratuitous socket close calls in con_work
      libceph: close socket directly from ceph_con_close()
      libceph: drop unnecessary CLOSED check in socket state change callback
      libceph: replace connection state bits with states
      libceph: clean up con flags
      libceph: clear all flags on con_close
      libceph: be less chatty about stray replies
      ceph: update MAINTAINERS file
      libceph: fix handling of immediate socket connect failure
      libceph: revoke mon_client messages on session restart
      libceph: verify state after retaking con lock after dispatch
      libceph: avoid dropping con mutex before fault
      libceph: change ceph_con_in_msg_alloc convention to be less weird
      libceph: recheck con state after allocating incoming message

Xi Wang (3):
      libceph: fix overflow in __decode_pool_names()
      libceph: fix overflow in osdmap_decode()
      libceph: fix overflow in osdmap_apply_incremental()

Yan, Zheng (3):
      ceph: check PG_Private flag before accessing page->private
      rbd: Fix ceph_snap_context size calculation
      rbd: Clear ceph_msg->bio_iter for retransmitted message

 Documentation/ABI/testing/sysfs-bus-rbd |   10 +-
 MAINTAINERS                             |   13 +-
 drivers/block/rbd.c                     |  820 +++++++++++++++------------
 drivers/block/rbd_types.h               |    1 -
 fs/ceph/addr.c                          |   21 +-
 fs/ceph/dir.c                           |    7 +-
 fs/ceph/mds_client.c                    |   23 +-
 fs/ceph/snap.c                          |   18 +-
 fs/ceph/super.c                         |    1 +
 fs/ceph/super.h                         |    4 +-
 fs/ceph/xattr.c                         |    1 +
 include/linux/ceph/ceph_features.h      |   27 +
 include/linux/ceph/ceph_fs.h            |   14 -
 include/linux/ceph/decode.h             |   49 ++-
 include/linux/ceph/libceph.h            |   10 +-
 include/linux/ceph/messenger.h          |   72 +--
 include/linux/ceph/mon_client.h         |    2 +-
 include/linux/ceph/msgpool.h            |    3 +-
 include/linux/crush/crush.h             |    8 +
 net/ceph/ceph_common.c                  |   32 +-
 net/ceph/crush/mapper.c                 |   13 +-
 net/ceph/messenger.c                    |  937 +++++++++++++++++++------------
 net/ceph/mon_client.c                   |   84 ++--
 net/ceph/msgpool.c                      |    7 +-
 net/ceph/osd_client.c                   |   89 ++--
 net/ceph/osdmap.c                       |   59 ++-
 26 files changed, 1387 insertions(+), 938 deletions(-)
 create mode 100644 include/linux/ceph/ceph_features.h
--
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