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    [DLM] dlm_device interface changes [3/6] · d7db923e
    David Teigland 提交于
    Change the user/kernel device interface used by libdlm:
    - Add ability for userspace to check the version of the interface.  libdlm
      can now adapt to different versions of the kernel interface.
    - Increase the size of the flags passed in a lock request so all possible
      flags can be used from userspace.
    - Add an opaque "xid" value for each lock.  This "transaction id" will be
      used later to associate locks with each other during deadlock detection.
    - Add a "timeout" value for each lock.  This is used along with the
      DLM_LKF_TIMEOUT flag.
    
    Also, remove a fragment of unused code in device_read().
    
    This patch requires updating libdlm which is backward compatible with
    older kernels.
    Signed-off-by: NDavid Teigland <teigland@redhat.com>
    Signed-off-by: NSteven Whitehouse <swhiteho@redhat.com>
    d7db923e
user.c 21.4 KB