Commits on Nov 27, 2018

1. UCT/MM: Fix endpoint flush - don't update cached tail …

   We must not update cached tail in uct_mm_ep_flush() if there are any
   pending elements. We may get new send resources but not use them, so
   flush could return UCS_OK while there pending requests.
   
   Fixes openucx#3052

   

   yosefe committed Nov 27, 2018
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2. UCP/EP: Fixes for endpoint flush for software rma/amo operations …

   - Ignore remote completions in case of forced flush (CLOSE_MODE_CANCEL)
   
   - The UCP_EP_FLAG_FLUSH_STATE_VALID flag can't be used because it's not
     valid in release mode. Instead, use the UCP_EP_FLAG_DEST_EP flag as an
     indirect indication that we may have some operations which wait for
     software rma/amo completion.
   
   - Fix missing initializion of flush state in case of client/server
     connection establishment with p2p lanes and *without* pre-request.

   

   yosefe committed Nov 27, 2018
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3. UCP/FLUSH: Fix typo in comment

   

   yosefe committed Nov 27, 2018
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4. TEST/GTEST: Workaround armclang 19 segfault - avoid empty initializer

   

   yosefe committed Nov 27, 2018
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