xenserver/win-xenvbd — pull request #20 by OwenSmith (2014-05-01 11:36:42+00:00)
Title: [CA-134598] Store the (partial) tag along with the XENVBD_REQUEST.

Migrate and a bus/target reset will re-queue any existing inflight requests, but not
reset the request tagging correctly, and will eventually run out of free tags.

Signed-off-by: Owen Smith