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Subject[GIT PULL] DRBD updates for your for-3.17/drivers branch
Date
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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