Pre-allocate buffers for deregistering memory region and memory window
during RDMA connection close, when system is running out of memory.
Signed-off-by: NSteve Wise <swise@opengridcomputing.com>
Signed-off-by: NHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>