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Date:	Thu, 10 Jul 2014 15:54:16 +0200
From:	Philipp Reisner <philipp.reisner@...bit.com>
To:	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org
Cc:	drbd-dev@...ts.linbit.com
Subject: [GIT PULL] DRBD updates for your for-3.17/drivers branch

Hi Jens,

here is the pull request for the patches that I sent for review
on June 30, July 1st and 3rd. The suggested improvement is amended.

The important news are:
* Debugfs hierarchy for DRBD.  It unveils a lot of information 
  about timing of states/stages of IO requests.
* The bitmap updates during resync got restructured, to be form
  a much nicer IO pattern. No longer updates to the same sector.
  Now issued in bursts every 2 seconds.

-phil

The following changes since commit 6a27b656fc0210e976db362e1368c56db05c8f08:

  block: virtio-blk: support multi virt queues per virtio-blk device (2014-07-01 10:51:03 -0600)

are available in the git repository at:

  git://git.linbit.com/linux-drbd.git for-3.17

for you to fetch changes up to 3f500c97166a2cdd7c15743c77c5ba3c766904de:

  drbd: silence underflow warning in read_in_block() (2014-07-10 15:27:04 +0200)

----------------------------------------------------------------
Andreas Gruenbacher (1):
      drbd: Remove unnecessary/unused code

Dan Carpenter (1):
      drbd: silence underflow warning in read_in_block()

Joe Perches (1):
      block: Convert last uses of __FUNCTION__ to __func__

Lars Ellenberg (52):
      drbd: reduce number of spinlock drop/re-aquire cycles
      drbd: refactor use of first_peer_device()
      drbd: allow write-ordering policy to be bumped up again
      drbd: get rid of atomic update on disk bitmap works
      drbd: fix a race stopping the worker thread
      drbd: fix resync finished detection
      drbd: stop the meta data sync timer before open coded meta data sync
      drbd: re-add lost conf_mutex protection in drbd_set_role
      drbd: trigger tcp_push_pending_frames() for PING and PING_ACK
      drbd: move set_disk_ro() to after we persisted the new role
      drbd: explicitly submit meta data requests with REQ_NOIDLE
      drbd: close race when detaching from disk
      drbd: make sure disk cleanup happens in worker context
      drbd: use drbd_device_post_work() in more places
      drbd: get rid of drbd_queue_work_front
      drbd: drop wrong debugging aid
      drbd: silence -Wmissing-prototypes warnings
      drbd: fix bogus resync stats in /proc/drbd
      drbd: don't implicitly resize Diskless node beyond end of device
      drbd: implement csums-after-crash-only
      drbd: application writes may set-in-sync in protocol != C
      drbd: short-circuit in maybe_pull_ahead
      drbd: improve resync request throttling due to sendbuf size
      drbd: clear CRASHED_PRIMARY only after successful resync
      drbd: cosmetic: change all printk(level, ...) to pr_<level>(...)
      drbd: drbd_rs_number_requests: fix unit mismatch in comparison
      drbd: add drbd_queue_work_if_unqueued helper
      drbd: drop drbd_md_flush
      drbd: consistently use list_add_tail for peer_request tracking
      drbd: also keep track of trim -> zero-out fallback peer_requests
      drbd: poison free'd device, resource and connection structs
      drbd: fix drbd_destroy_device reference count updates
      drbd: track meta data IO intent, start and submit time
      drbd: gather detailed timing statistics for drbd_requests
      drbd: add lists to find oldest pending requests
      drbd: add caching oldest request pointers for replication stages
      drbd: improve throttling decisions of background resynchronisation
      drbd: track timing details of peer_requests
      drbd: register peer requests on read_ee early
      drbd: track details of bitmap IO
      drbd: debugfs: add basic hierarchy
      drbd: debugfs: add in_flight_summary data
      drbd: debugfs: deal with destructor racing with open of debugfs file
      drbd: debugfs: Add in_flight_summary
      drbd: debugfs: add callback_history
      drbd: debugfs: add per volume oldest_requests
      drbd: debugfs: add version tag to debugfs files
      drbd: debugfs: add per connection oldest requests
      drbd: debugfs: add per device data_gen_id
      drbd: resync should only lock out specific ranges
      drbd: drop spurious parameters from _drbd_md_sync_page_io
      drbd: implicitly truncate cpu-mask

Monam Agarwal (1):
      drivers/block: Use RCU_INIT_POINTER(x, NULL) in drbd/drbd_state.c

Philipp Reisner (5):
      drbd: Move write_ordering from connection to resource
      drbd: device->ldev is not guaranteed on an D_ATTACHING disk
      drbd: rename drbd_free_bc() to drbd_free_ldev()
      drbd: Limit the time we are waiting for the first packet on an accepted socket
      drbd: New net configuration option socket-check-timeout

 drivers/block/drbd/Makefile        |   1 +
 drivers/block/drbd/drbd_actlog.c   | 518 +++++++++++++-------------------
 drivers/block/drbd/drbd_bitmap.c   | 140 +++------
 drivers/block/drbd/drbd_debugfs.c  | 958 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/block/drbd/drbd_debugfs.h  |  39 +++
 drivers/block/drbd/drbd_int.h      | 383 ++++++++++++++++--------
 drivers/block/drbd/drbd_interval.h |   4 +-
 drivers/block/drbd/drbd_main.c     | 302 ++++++++-----------
 drivers/block/drbd/drbd_nl.c       | 110 ++++---
 drivers/block/drbd/drbd_proc.c     | 125 +++++---
 drivers/block/drbd/drbd_receiver.c | 316 +++++++++++++-------
 drivers/block/drbd/drbd_req.c      | 527 ++++++++++++++++++++++----------
 drivers/block/drbd/drbd_req.h      |   1 +
 drivers/block/drbd/drbd_state.c    |  90 +++---
 drivers/block/drbd/drbd_worker.c   | 348 +++++++++++++++++-----
 include/linux/drbd.h               |   4 +-
 include/linux/drbd_genl.h          |   4 +
 include/linux/drbd_limits.h        |   6 +
 lib/lru_cache.c                    |  23 +-
 19 files changed, 2689 insertions(+), 1210 deletions(-)
 create mode 100644 drivers/block/drbd/drbd_debugfs.c
 create mode 100644 drivers/block/drbd/drbd_debugfs.h

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