DPDK has added APIs for registering externally allocated
memory regions. Use them instead of doing our own thing.
We have to postpone spdk_mem_unregister call in
memory_hotplug_cb() because SPDK mutex (g_spdk_mem_map_mutex)
and DPDK mutex (memory_hotplug_lock) may overlap
and cause deadlock when one thread is calling spdk_free()
(locks memory_hotplug_lock first and then tries to lock
g_spdk_mem_map_mutex) and another one is calling
vhost_session_mem_unregister() (locks g_spdk_mem_map_mutex
first and then tries to lock memory_hotplug_lock).
Change-Id: I547b4ffc3987ef088a1b659addba1456ad760a71
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3560
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
aaac48880d