1. 30 8月, 2017 1 次提交
    • M
      IB/core: Add a generic way to execute an operation on a uobject · a0aa309c
      Matan Barak 提交于
      The ioctl infrastructure treats all user-objects in the same manner.
      It gets objects ids from the user-space and by using the object type
      and type attributes mentioned in the object specification, it executes
      this required method. Passing an object id from the user-space as
      an attribute is carried out in three stages. The first is carried out
      before the actual handler and the last is carried out afterwards.
      
      The different supported operations are read, write, destroy and create.
      In the first stage, the former three actions just fetches the object
      from the repository (by using its id) and locks it. The last action
      allocates a new uobject. Afterwards, the second stage is carried out
      when the handler itself carries out the required modification of the
      object. The last stage is carried out after the handler finishes and
      commits the result. The former two operations just unlock the object.
      Destroy calls the "free object" operation, taking into account the
      object's type and releases the uobject as well. Creation just adds the
      new uobject to the repository, making the object visible to the
      application.
      
      In order to abstract these details from the ioctl infrastructure
      layer, we add uverbs_get_uobject_from_context and
      uverbs_finalize_object functions which corresponds to the first
      and last stages respectively.
      Signed-off-by: NMatan Barak <matanb@mellanox.com>
      Reviewed-by: NYishai Hadas <yishaih@mellanox.com>
      Signed-off-by: NDoug Ledford <dledford@redhat.com>
      a0aa309c
  2. 29 8月, 2017 39 次提交