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[PATCH v5 0/9] infiniband: Remove semaphores

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Hi,

These are a set of patches [v5] which removes semaphores from infiniband.
These are part of a bigger effort to eliminate all semaphores from the
linux kernel.

v4 --> v5
---------
IB/isert: Replace semaphore sem with completion
  - Modified changelog to support use of completion
IB/mlx5: Simplify completion into a wait_event
  - Avoid this patch.
    As umr_context is on the stack, and we are waiting
    for it to be fully done, it really should be a completion.

v3 -> v4:
---------

IB/mlx5: Added patch - Replace semaphore umr_common:sem with wait_event
IB/mlx5: Fixed a bug pointed out by Leon Romanovsky

v2 -> v3:
---------

IB/mlx5: Move '&umr_context' into helper fn
IB/mthca: Restructure mthca_cmd.c to manage free_head
IB/hns: Restructure hns_roce_cmd.c to manage free_head
IB/core: Convert completion to wait_event
IB/mlx5: Simplify completion into a wait_event

v1 -> v2:
---------

IB/hns   : Use wait_event instead of open coding counting semaphores
IB/mthca : Use wait_event instead of open coding counting semaphores
IB/mthca : Remove mutex_[un]lock from *_cmd_use_events/*_cmd_use_polling
IB/mlx5  : Cleanup, add helper mlx5_ib_post_send_wait

v1
---------
  IB/core: iwpm_nlmsg_request: Replace semaphore with completion
  IB/core: Replace semaphore sm_sem with completion
  IB/hns: Replace semaphore poll_sem with mutex
  IB/mthca: Replace semaphore poll_sem with mutex
  IB/isert: Replace semaphore sem with completion
  IB/hns: Replace counting semaphore event_sem with wait condition
  IB/mthca: Replace counting semaphore event_sem with wait condition
  IB/mlx5: Replace counting semaphore sem with wait condition

Thanks,
Binoy

Binoy Jayan (9):
  IB/core: iwpm_nlmsg_request: Replace semaphore with completion
  IB/core: Replace semaphore sm_sem with an atomic wait
  IB/hns: Replace semaphore poll_sem with mutex
  IB/mthca: Replace semaphore poll_sem with mutex
  IB/isert: Replace semaphore sem with completion
  IB/hns: Replace counting semaphore event_sem with wait_event
  IB/mthca: Replace counting semaphore event_sem with wait_event
  IB/mlx5: Add helper mlx5_ib_post_send_wait
  IB/mlx5: Replace semaphore umr_common:sem with wait_event

 drivers/infiniband/core/iwpm_msg.c          |   8 +-
 drivers/infiniband/core/iwpm_util.c         |   7 +-
 drivers/infiniband/core/iwpm_util.h         |   3 +-
 drivers/infiniband/core/user_mad.c          |  20 +++--
 drivers/infiniband/hw/hns/hns_roce_cmd.c    |  57 +++++++++-----
 drivers/infiniband/hw/hns/hns_roce_device.h |   5 +-
 drivers/infiniband/hw/mlx5/main.c           |   6 +-
 drivers/infiniband/hw/mlx5/mlx5_ib.h        |   7 +-
 drivers/infiniband/hw/mlx5/mr.c             | 117 ++++++++--------------------
 drivers/infiniband/hw/mthca/mthca_cmd.c     |  57 ++++++++------
 drivers/infiniband/hw/mthca/mthca_cmd.h     |   1 +
 drivers/infiniband/hw/mthca/mthca_dev.h     |   5 +-
 drivers/infiniband/ulp/isert/ib_isert.c     |   6 +-
 drivers/infiniband/ulp/isert/ib_isert.h     |   3 +-
 14 files changed, 147 insertions(+), 155 deletions(-)

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a Linux Foundation Collaborative Project

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[PATCH v5 0/9] infiniband: Remove semaphores Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:10 +0100
  [PATCH v5 7/9] IB/mthca: Replace counting semaphore event_sem with wait_event Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:10 +0100
  [PATCH v5 6/9] IB/hns: Replace counting semaphore event_sem with wait_event Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:10 +0100
  [PATCH v5 3/9] IB/hns: Replace semaphore poll_sem with mutex Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:10 +0100
  [PATCH v5 8/9] IB/mlx5: Add helper mlx5_ib_post_send_wait Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:10 +0100
  [PATCH v5 1/9] IB/core: iwpm_nlmsg_request: Replace semaphore with completion Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:10 +0100
  [PATCH v5 9/9] IB/mlx5: Replace semaphore umr_common:sem with wait_event Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:20 +0100
  [PATCH v5 4/9] IB/mthca: Replace semaphore poll_sem with mutex Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:20 +0100
  [PATCH v5 5/9] IB/isert: Replace semaphore sem with completion Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:20 +0100
    Re: [PATCH v5 5/9] IB/isert: Replace semaphore sem with completion Sagi Grimberg <sagi@grimberg.me> - 2016-11-21 08:40 +0100
      Re: [PATCH v5 5/9] IB/isert: Replace semaphore sem with completion Arnd Bergmann <arnd@arndb.de> - 2016-11-21 11:30 +0100
        Re: [PATCH v5 5/9] IB/isert: Replace semaphore sem with completion Sagi Grimberg <sagi@grimberg.me> - 2016-11-21 13:40 +0100
          Re: [PATCH v5 5/9] IB/isert: Replace semaphore sem with completion Arnd Bergmann <arnd@arndb.de> - 2016-11-21 16:00 +0100
  [PATCH v5 2/9] IB/core: Replace semaphore sm_sem with an atomic wait Binoy Jayan <binoy.jayan@linaro.org> - 2016-11-21 07:20 +0100
    Re: [PATCH v5 2/9] IB/core: Replace semaphore sm_sem with an atomic  wait Christoph Hellwig <hch@infradead.org> - 2016-11-21 18:00 +0100
    Re: [PATCH v5 2/9] IB/core: Replace semaphore sm_sem with an atomic wait Arnd Bergmann <arnd@arndb.de> - 2016-11-21 18:00 +0100
      Re: [PATCH v5 2/9] IB/core: Replace semaphore sm_sem with an atomic wait Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-21 19:00 +0100
        Re: [PATCH v5 2/9] IB/core: Replace semaphore sm_sem with an atomic wait Arnd Bergmann <arnd@arndb.de> - 2016-11-22 00:00 +0100

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